philips DAC-08 SERIES 8-bit high-speed multiplying D/A converter handbook
Contents
1. IFS OUTPUT FULL SCALE CURRENT mA NOTES Curve 1 CC 15pF VIN 2 0Vp_p centered at 1 0V Curve 1 CC 15pF ViN 5m0Vp p centered at 200mV Curve 1 CC 15pF ViN 100m0Vp p centered at OV and applied through 50 connected to Pin 14 2 0V applied to R44 Figure 7 Typical Performance Characteristics 2001 Aug 03 8 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series TYPICAL PERFORMANCE CHARACTERISTICS Continued Reference AMP Common Mode Range All Bits On Logic Input Current vs Input Voltage VtH Vic vs Temperature 3 2 n 28 TA MIN to TMAX pad 2 0 1 8 mA gt V 15V V 5V V 5V IB F 2mA RER RITE y IREF 0 2mA 4 o lh 1 n i 1 1 1 1 14 10 6 20 2 6 10 14 18 8 4 0 4 8 12 16 50 0 50 100 150 V15 REFERENCE COMMON MODE VOLTAGE V LOGIC INPUT VOLTAGE V TEMPERATURE C POSITIVE COMMON MODE RANGE IS ALWAYS V 1 5V Pai Oi ae ITN omy oO N o OUTPUT CURRENT e a LOGIC INPUT CURRENT Lt A Lo D Output Voltage Compliance vs Temperature Bit Transfer Characteristics Power Supply Curren2. TA Tmin TO Tmax 2 8 2 5V mA 2 4 VIN V 15V_ V 5V IREF 2 0 5V 20 1 0mA 0 5mA IOUT 1 6 1 2 IREF 1 0 8 0 4 IREF 0 2mA P m 00000000 11111111 EE 14 10 6 202 6 10 14 18 200ns division OUTPUT VOETAGE Y REQ 2009 R 1002 CC 0 2 5mA IOUT OUTPUT CURRENT mA Full Scale Current vs Full Scale Settling Time LSB Switching Reference Current EHHH ALL BITS SWITCHED ON Limit FOR A Tmin TO Tma es LL BITS HIGH ee a 2 4V 0 4V OUTPUT 1 2LSB LIMIT FOR V 5V 0 g D d en SETTLING 1 2LSB LLAT Ips OUTPUT CURRENT mA 50ns DIVISIOM 50ns DIVISIOM IFS 2MA R 1kQ 1 2LSB 4uA 10 20 30 4 0 5 0 IREF REFERENCE CURRENT mA LSB Propagation Delay vs IFS Reference Input Frequency Response L R14 R15 1kQ H R lt 5009 7 al L ALL BITS ON _ 1LSB 78nA L vR15 0V LETH bora k He AX HOO CO 01 02 05 10 20 50 10 ooo 9 Pe ee Meee Get ee FREQUENCY MHz PROPAGATION DELAY ns RELATIVE OUTPUT dB
3. http www semiconductors philips com Fax 31 40 27 24825 Date of release 10 01 Document order number 9397 750 08922 Lett make things beter ae S PHILIPS For sales offices addresses send e mail to sales addresses www semiconductors philips com
4. 2001 Aug 03 14 92H 95 01 14 Philips Semiconductors 8 bit high speed multiplying D A converter S016 plastic small outline package 16 leads body width 3 9 mm detail X 2 5 scale DIMENSIONS inch dimensions are derived from the original mm dimensions Product data DAC 08 Series SOT109 1 A max A1 Ag Ag bp c D EM e UNIT 0 25 1 45 0 49 0 25 10 0 4 0 Tes 0 10 1 25 0 36 0 19 9 8 3 8 1er 0 010 0 057 0 019 0 0100 0 39 0 16 inches 0 069 9 o94 o 049 0 014 0 0075 0 38 0 15 25 Note 1 Plastic or metal protrusions of 0 15 mm maximum per side are not included OUTLINE REFERENCES EUROPEAN VERSION IEC JEDEC EIAJ PROJECTION ISSUE DATE SOT109 1 076E07 MS 012 E 2001 Aug 03 15 O02 99 12 27 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series Data sheet status Product Definitions 1 Data sheet status status 2 Objective data Development This data sheet contains data from the objective specification for product development Philips Semiconductors reserves the right to change the specification in any manner without notice Preliminary data Qualification This data sheet contains data from the preliminary specification Supplementary data will be published at a later date Philips Semiconductors reserv
5. The capacitor may be tied to either Vee or ground but using Veg increases negative supply rejection Fluctuations in the negative supply have more effect on accuracy than do any changes in the positive supply A negative reference voltage may be used if R44 is grounded and the reference voltage is applied to R15 as shown A high input impedance is the main advantage of this method The negative reference voltage must be at least 3 0 V above the Veg supply Bipolar input signals may be handled by connecting R44 to a positive reference voltage equal to the peak positive input level at Pin 15 When using a DC reference voltage capacitive bypass to ground is recommended The 5 0 V logic supply is not recommended as a reference voltage but if a well regulated 5 0V supply which drives logic is to be used as the reference R14 should be formed of two series resistors with the junction of the two resistors bypassed with 0 1 uF to ground For reference voltages greater than 5 0 V a clamp diode is recommended between Pin 14 and ground If Pin 14 is driven by a high impedance such as a transistor current source none of the above compensation methods applies and the amplifier must be heavily compensated decreasing the overall bandwidth 2001 Aug 03 10 Product data DAC 08 Series Output Voltage Range The voltage at Pin 4 must always be at least 4 5 V more positive than the voltage of the negative supply Pin 3 when the reference cur
6. supply range with 37 mW power consumption attainable at 5 V supplies The compact size and low power consumption make the DAC 08 attractive for portable and military aerospace applications FEATURES Fast settling output current 70 ns Full scale current prematched to 1 LSB Direct interface to TTL CMOS ECL HTL PMOS Relative accuracy to 0 1 maximum over temperature range High output compliance 10 V to 18 V True and complemented outputs Wide range multiplying capability Low FS current drift 10ppm C Wide power supply range 4 5 V to 18 V Low power consumption 37 mW at 5 V APPLICATIONS 8 bit 1 us A to D converters Servo motor and pen drivers Waveform generators Audio encoders and attenuators Analog meter drivers Programmable power supplies CRT display drivers High speed modems Other applications where low cost high speed and complete input output versatility are required Programmable gain and attenuation Analog Digital multiplication 2001 Aug 03 PIN CONFIGURATIONS N Package TOP VIEW DI Package V VREF VREF COMPEN VLC lo TOP VIEW NOTE 1 SO and non standard pinouts SL00001 Figure 1 Pin Configuration 853 0045 26832 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER C
7. DATA SAHEET DAC 08 SERIES 8 bit high speed multiplying D A converter Product data 2001 Aug 03 Supersedes data of 1994 Aug 31 File under Integrated Circuits Handbook IC11 Semi PHILIPS Semiconductors Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series DESCRIPTION The DAC 08 series of 8 bit monolithic multiplying Digital to Analog Converters provide very high speed performance coupled with low cost and outstanding applications flexibility Advanced circuit design achieves 70 ns settling times with very low glitch and at low power consumption Monotonic multiplying performance is attained over a wide 20 to 1 reference current range Matching to within 1 LSB between reference and full scale currents eliminates the need for full scale trimming in most applications Direct interface to all popular logic families with full noise immunity is provided by the high swing adjustable threshold logic inputs Dual complementary outputs are provided increasing versatility and enabling differential operation to effectively double the peak to peak output swing True high voltage compliance outputs allow direct output voltage conversion and eliminate output op amps in many applications All DAC 08 series models guarantee full 8 bit monotonicity and linearities as tight as 0 1 over the entire operating temperature range Device performance is essentially unchanged over the 4 5 V to 18 V power
8. ODE DWG 16 Pin Plastic Dual In Line Package DIP 0 to 70 C DAC 08CN SOT38 4 C 16 Pin Plastic Dual In Line Package DIP DAC 08EN SOT38 4 16 Pin Plastic Small Outline SO Package 0 to 70 C DAC 08ED SOT109 1 16 Pin Plastic Dual In Line Package DIP 0 to 70 C DAC 08HN SOT38 4 BLOCK DIAGRAM BIAS NETWORK CURRENT SWITCHES REFERENCE AMPLIFIER SL00002 Figure 2 Block Diagram ABSOLUTE MAXIMUM RATINGS ve foem SSC CCS ViaVis___ Referencoampifernous f o e i Maximum power dissipation Tamp 25 C still air 1 N package D package TsoLD Lead soldering temperature 10 sec max Operating temperature range 010270 Storage temperature range 65 to 150 NOTE 1 Derate above 25 C at the following rates N package at 11 6mW C D package at 8 7mW C 2001 Aug 03 3 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series DC ELECTRICAL CHARACTERISTICS Pin 3 must be at least 3 V more negative than the potential to which R45 is returned Voc 15V IReF 2 0 mA Output characteristics refer to both lour and lout unless otherwise noted Tamp 0 C to 70 C SYMBOL PARAMETER TEST CONDITIONS Resolution Monotonicity Relative accuracy Over temperature range Differential non linearity Voc Output voltage compliance Full scale current change lt 1 2LSB 10 2 Vrer 10 000V lesa Full scale current Rin Big 5 000 ko Ips
9. OR OUTPUT REFERENCE DAC ACCURACY gt 0 006 SL00003 Figure 3 Relative Accuracy Test Circuit 2 4 V e n 0 4 V PHL PLH 19 S Use R to GND 1 0 V FOR TURN OFF SETTLING TIME MEASUREMENT RL 500 Q FOR SETTLING TIME MEASUREMENT 0 eo ALLBITS SWITCHED LOW TO HIGH tg 70 ns TYPICAL TO 1 2 LSB M CO 25 pF TRANSIENT 0 RESPONSE 100 mV 7 Ri 50 Q PIN 4 TO GND tPHL SL00004 Figure 4 Transient Response and Settling Time 2001 Aug 03 6 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series TEST CIRCUITS Continued SLO0005 DIGITAL INPUTS OUTPUT RL NOTES See text for values of C Typical values of R44 R15 1 KQ Vper 2 0 V C 15 pF Vi and apply to inputs A4 through Ag The resistor tied to Pin 15 is to temperature compensate the bias current and may not be necessary for all applications Ag ee oe PT Pe 16 32 64 128 256 and Ay 1 if Ay is at High Level An 0 if Ay is at Low Level SL00006 Figure 6 Notation Definitions 2001 Aug 03 7 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series TYPICAL PERFORMANCE CHARACTERISTICS Output Current vs Output Voltage f True and Complementary Output Output Voltage Compliance Fast Pulsed Reference Operation Operation ALL BITS ON 3 2
10. Y CURRENT mA 0 4 0 80 12 16 20 50 0 50 100 150 V NEGATIVE POWER SUPPLY Vpc TEMPERATURE C 1000 SL00008 Figure 8 Typical Performance Characteristics cont 2001 Aug 03 9 Philips Semiconductors 8 bit high speed multiplying D A converter TYPICAL APPLICATION VREF OPTIONAL RESISTOR FFSET FOR Ol INPUTS NOTES REQ RIN RP Typical Values RIN 5kQ VIN 10V Pulsed Referenced Operation SL00009 Figure 9 Typical Application FUNCTIONAL DESCRIPTION Reference Amplifier Drive and Compensation The reference amplifier input current must always flow into Pin 14 regardless of the setup method or reference supply voltage polarity Connections for a positive reference voltage are shown in Figure 3 The reference voltage source supplies the full reference current For bipolar reference signals as in the multiplying mode R15 can be tied to a negative voltage corresponding to the minimum input level R45 may be eliminated with only a small sacrifice in accuracy and temperature drift The compensation capacitor value must be increased as R44 value is increased This is in order to maintain proper phase margin For R44 values of 1 0 2 5 and 5 0 KQ minimum capacitor values are 15 37 and 75 pF respectively
11. _ _2 Pull Sealereyminetly Izs Zero scale current l esR Full scale output current R14 R15 5 000 kQ range Vrer 15 0 V V 10 V Vrer 25 0 V V 12 V Bits 0 19 FS 0 39 FS pm C U 3 T gt T gt 3 3 gt gt Logic input levels Low High OOo Logic input current Vic 0V Ea Oo Ei 80 ee Low Vin 10 V to 0 8 V 2 0 10 High Vin 2 0 V to 18 V 0 002 10 uA Vis Logic input swing V 15V VTHR Logic threshold range Vs 15V dl dt Reference input slew rate Pe 4 0 Power supply sensitivity IREF 1mA 0 0003 0 01 0 002 0 01 PSSles Positive V 4 5 to 5 5 V V 15 V B 3 3 8 5 8 T gt T gt 3 0 0003 0 01 FS VS PSles_ Negative V 4 5 to 5 5 V V 15 V V 13 5 to 16 5 V V 15 V FS VS Power supply current Positive Negative ii i ii daii ii Negative Negative 5 V Iger 1 0 mA Power dissipation 5 V 15 V IReF 2 0 mA 15 V IRef 2 0 mA Vs 5 V IReF 1 0 mA ao liL NH ao N V 13 5 to 16 5 V V 15 V 3 8 7 8 ao ho 1 l rs 3 l 7 2 7 37 122 156 156 A 2001 Aug 03 4 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series DC ELECTRICAL CHARACTERISTICS Continued Pin 3 must be at least 3 V more negative than the potential to which R45 is returned Voc 15 V IRef 2 0 mA Output c
12. ata 8 bit high speed multiplying D A converter DAC 08 Series UNIPOLAR VOLTAGE OUTPUT FOR HIGH IMPEDANCE OUTPUT DAC 08 a Positive Output DAC 08 a Negative Output SL00014 Figure 14 Unipolar Voltage Output for High Impedance Output BASIC BIPOLAR OUTPUT OPERATION OFFSET BINARY DAC 08 VOUT VOUT Positive full scale 9 920 V 10 000 Positive FS 1LSB 9 840V 9 920 Zero scale 1LSB 0 080V 0 160 Zero scale 0 000 0 080 Zero scale 1LSB 0 080 0 000 Negative full scale 1LSB 9 920 9 840 Negative full scale 10 000 9 920 SL00015 Figure 15 Basic Bipolar Output Operation Offset Binary 2001 Aug 03 13 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series DIP16 plastic dual in line package 16 leads 300 mil lt seating plane 5 scale DIMENSIONS inch dimensions are derived from the original mm dimensions SOT38 4 A Ay Ao max min max b4 bo c pM amp UNIT 1 73 0 53 1 25 0 36 19 50 6 48 Aa oo 2 1 30 0 38 0 85 0 23 18 55 6 20 0 068 0 021 0 049 0 014 0 77 0 26 inches 0 17 0 020 0 13 9 951 0 015 0 033 0 009 0 73 0 24 Note 1 Plastic or metal protrusions of 0 25 mm maximum per side are not included OUTLINE REFERENCES EUROPEAN VERSION PROJECTION ISSUE DATE SOT38 4 E
13. ce reliability Application information Applications that are described herein for any of these products are for illustrative purposes only Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification Disclaimers Life support These products are not designed for use in life support appliances devices or systems where malfunction of these products can reasonably be expected to result in personal injury Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application Right to make changes Philips Semiconductors reserves the right to make changes without notice in the products including circuits standard cells and or software described or contained herein in order to improve design and or performance Philips Semiconductors assumes no responsibility or liability for the use of any of these products conveys no license or title under any patent copyright or mask work right to these products and makes no representations or warranties that these products are free from patent copyright or mask work right infringement unless otherwise specified Contact information Koninklijke Philips Electronics N V 2001 For additional information please visit All rights reserved Printed in U S A
14. es the right to change the specification without notice in order to improve the design and supply the best possible product Product data Production This data sheet contains data from the product specification Philips Semiconductors reserves the right to make changes at any time in order to improve the design manufacturing and supply Changes will be communicated according to the Customer Product Process Change Notification CPCN procedure SNW SQ 650A 1 Please consult the most recently issued data sheet before initiating or completing a design 2 The product status of the device s described in this data sheet may have changed since this data sheet was published The latest information is available on the Internet at URL http www semiconductors philips com Definitions Short form specification The data in a short form specification is extracted from a full data sheet with the same type number and title For detailed information see the relevant data sheet or data handbook Limiting values definition Limiting values given are in accordance with the Absolute Maximum Rating System IEC 60134 Stress above one or more of the limiting values may cause permanent damage to the device These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied Exposure to limiting values for extended periods may affect devi
15. haracteristics refer to both lour and lour unless otherwise noted Tamb 0 C to 70 C SYMBOL PARAMETER TEST CONDITIONS UNIT hie e a os a Monotonicity 8 8 8 Bits Diowriariveaty oaeee TT sae rs Differential non linearity 0 19 FS less Full scale symmetry lesa lrso lesR Full scale output current range R414 R15 5 000 KQ Vref 15 0 V V 10 V Vrer t 25 0V V 12V Logic input levels Vit Low Vin High Logic input current Vic 0V lit Low Vin 10 V to 0 8 V High Vin 2 0 V to 18 V Power supply sensitivity IREF 1mA PSSles Positive V 4 5 to 5 5 V V 15 V V 13 5 to 16 5 V V 15 V PSlfs Negative V 4 5 to 5 5 V V 15 V V 13 5 to 16 5 V V 15 V M oO A oO Power supply current Positive Negative Positive Vs 4 5V 15 V 1 2 0mA Positive Vs 15 V 1 2 0 mA Negative Power dissipation 5 V IREF 1 0 mA 5 V 15 V Ipgf 2 0 mA 15 V IRef 2 0 mA F Vs 5 V Iperf 1 0 mA liH l 3 1 37 122 156 LJL AN dy foe Ro y 2001 Aug 03 5 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series AC ELECTRICAL CHARACTERISTICS Min Typ Max min Typ Max min Typ Max To 1 2LSB all bits ts Settling time switched on or off Tamb 25 C Propagation delay Low to High Tamb 25 C each bit High to Low All bits switched TEST CIRCUITS ERR
16. rent is 2 mA or less and at least 8 V more positive than the negative supply when the reference current is between 2 mA and 4 mA This is necessary to avoid saturation of the output transistors which would cause serious accuracy degradation Output Current Range Any time the full scale current exceeds 2 mA the negative supply must be at least 8 V more negative than the output voltage This is due to the increased internal voltage drops between the negative supply and the outputs with higher reference currents Accuracy Absolute accuracy is the measure of each output current level with respect to its intended value and is dependent upon relative accuracy full scale accuracy and full scale current drift Relative accuracy is the measure of each output current level as a fraction of the full scale current after zero scale current has been nulled out The relative accuracy of the DAC 08 series is essentially constant over the operating temperature range due to the excellent temperature tracking of the monolithic resistor ladder The reference current may drift with temperature causing a change in the absolute accuracy of output current However the DAC 08 series has a very low full scale current drift over the operating temperature range The DAC 08 series is guaranteed accurate to within LSB at 25 C at a full scale output current of 1 992 mA The relative accuracy test circuit is shown in Figure 3 The 12 bit converter is calibrated
17. t vs V ALL BITS HIGH OR LOW l Shaded area indicates permissible output voltage range for V 15V IREF lt 2 0mA For other V or IREF See Output Current vs Output Voltage curve on previous page POWER SUPPLY CURRENT mA OUTPUT CURRENT mA 2 W fir O gt 5 Bs gt O 50 0 50 100 150 V POSITIVE POWER SUPPLY Vpc K 8 4 0 4 8 0 50 100 LOGIC INPUT VOLTAGE V TEMPERATURE C NOTES B4 through Bg have identical transfer characteristics Bits are fully switched with less than 1 2LSB error at less than 100mV from actual threshold These switching points are guaranteed to lie between 0 8 and 2 0V over the operating temperature range Vic 0 0V Maximum Reference Input Frequency Power Supply Current vs V Power Supply Current vs Temperature vs Compensation Capacitor Value 10 000 BITS MAY BE HIGH OR LOW WITH IREF 2m l WITH IREF 1mA i je a S a l WITH ue 0 2mA l BITS MAY BE HIGH OR LOW V 415V a a an nt IREF 2 0mA p a S S e E A V 15V l POWER SUPPLY CURRENT mA POWER SUPPL
18. to a full scale output current of 1 99219 mA then the DAC 08 full scale current is trimmed to the same value with R44 so that a zero value appears at the error amplifier output The counter is activated and the error band may be displayed on the oscilloscope detected by comparators or stored in a peak detector Two 8 bit D to A converters may not be used to construct a 16 bit accurate D to A converter 16 bit accuracy implies a total of part in 65 536 or 0 00076 which is much more accurate than the 0 19 specification of the DAC 08 series Monotonicity A monotonic converter is one which always provides analog output greater than or equal to the preceding value for a corresponding increment in the digital input code The DAC 08 series is monotonic for all values of reference current above 0 5 mA The recommended range for operation is a DC reference current between 0 5 mA and 4 0 mA Settling Time The worst case switching condition occurs when all bits are switched on which corresponds to a low to high transition for all input bits This time is typically 70 ns for settling to within LSB for 8 bit accuracy This time applies when R_ lt 500 Q and Co lt 25 pF The slowest single switch is the least significant bit which typically turns on and settles in 65 ns In applications where the DAC functions in a positive going ramp mode the worst case condition does not occur and settling times less than 70 ns may be realized Extra care m
19. ust be taken in board layout since this usually is the dominant factor in satisfactory test results when measuring settling time Short leads 100 uF supply bypassing for low frequencies minimum scope lead length and avoidance of ground loops are all mandatory Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series SETTLING TIME AND PROPAGATION DELAY Vg 15V Vre 10V O IREF 2MA NOTES D41 Do IN6263 or equivalent D3 IN914 or equivalent Cz 0 01uF Co Cg 0 1uF Q41 2N3904 C4 C5 15pF and includes all probe and fixturing capacitance SL00010 Figure 10 Settling Time and Propagation Delay BASIC DAC 08 CONFIGURATION 5 6 7 8 9 10 DAC 08 aan SG lo lo les for all logic states SL00011 Figure 11 Basic DAC 08 Configuration 2001 Aug 03 11 Philips Semiconductors Product data 8 bit high speed multiplying D A converter DAC 08 Series RECOMMENDED FULL SCALE AND ZERO SCALE ADJUST DAC 08 Rg 20kQ NOTES Ry low T C R3 R41 R2 Ro 0 1 Ry to minimize pot contribution to full scale drift SL00012 Figure 12 Recommended Full Scale and Zero Scale Adjust UNIPOLAR VOLTAGE OUTPUT FOR LOW IMPEDANCE OUTPUT 5kQ LOW T C Vout DAC 08 R Q 0 TO 10V SL00013 Figure 13 Unipolar Voltage Output for Low Impedance Output 2001 Aug 03 12 Philips Semiconductors Product d
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philips DAC 08 SERIES 8 bit high speed multiplying D/A converter handbook