TEXAS INSTRUMENTS ADS1206 ADS1207 handbook
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1. 0 us Voltage Reference Input VREF Reference voltage input Reference input capacitance Reference input current 1 All typical values are at T 25 C 2 Integral nonlinearity is defined as the maximum deviation of the line through the end points of the transfer curve for ViN OV to VREF or 0 1V to Vpp 0 2V expressed either as the number of LSBs or as a percent of measured input range 3 Ensured by design 5 Maximum values including temperature drift are ensured over the full specified temperature range 6 Applicable for 5 0V nominal supply Vpp min Applicable for 3 0V nominal supply Vpp min 4 5V and Vpp max 5 5V 3 0V and Vpp max 3 6V PRODUCT PREVIEW PRODUCT PREVIEW ADS1206 ADS1207 SBAS311 MARCH 2004 ELECTRICAL CHARACTERISTICS continued Over recommended operating free air temperature range at 40 C to 85 C Vpp 5V or Vpp 3V VREF internal 2 5V CLKIN 1MHz unless otherwise noted ki TEXAS INSTRUMENTS www ti com ADS1206I ADS12071 PARAMETER TEST CONDITIONS MIN TYP 1 MAX UNITS Digital Inputs 5 Logic family CMOS VIH High level input voltage 0 7xVpp Vpp 0 3 V VIL Low level input voltage 0 3 0 3xVDD V IIN Input current Vi Vpp or GND 1 uA CI Input capacitance 5 pF Digital Outputs 5 Logic family CMOS Vpp 4 5V OH 100A 4 44 V VOH High level output voltage VDD 4 5V lOH 2MA 252. O 0 ADS1206 O 0 Burr Brown Products from Texas Instruments ADS1206 r ADS1207 SBAS311 MARCH 2004 Low Power Synchronous Voltage to Frequency Converter FEATURES Syncronous Operation Frequency Set By External Clock Maximum Input Frequency 1MHz for ADS1206 4MHz for ADS1207 Selectable High Impedance Buffered Input 2 Internal 2 5V Reference Voltage High Current Output Driver Power Supply 3 3V or 5V Low Power 3mW typ Alternate Source for AD7740 40 C to 85 C Operating Temperature Range APPLICATIONS Galvanic Isolation Measurement High Voltage Measurement Low Cost Analog to Digital Conversion Motor Control Industrial Process Control Instrumentation Smart Transmitters Portable Instruments DESCRIPTION The ADS1206 and ADS1207 are a low cost high performance synchronous voltage to frequency converters VFC Both devices can operate from a single 3 0V to 3 6V or 4 5V to 5 5V power supply consuming only 1mA The output signal is synchronous with the input clock CLKIN The clock input is TTL and CMOS compatible and the onboard clock generator can also accept an external crystal or resonator The maximum input clock frequency for the ADS1206 is 1MHz and for the ADS1207 is 4MHz The clock divider on the ADS1207 scales the input frequency to 2MHZ which permits the core to operate at the higher rate The high impedance input is ideal for direct connection to high impedance transducer
3. TE Applicable for 3 3V nominal supply Vpp min 3 0V and Vpp max 3 6V All input signals are specified with tp tF 5ns 10 to 90 of VDD and timed from a voltage level of Vi Vj H 2 See timing diagram PRODUCT PREVIEW K Texas PACKAGE OPTION ADDENDUM INSTRUMENTS www ti com 25 Feb 2005 PACKAGING INFORMATION Orderable Device Status Package Package Pins Package Eco Plan Lead Ball Finish MSL Peak Temp Type Drawing Qty ADS1206IDGKR PREVIEW MSOP DGK 8 2500 None Call TI Call TI ADS1206IDGKT PREVIEW MSOP DGK 8 250 None Call TI Call TI ADS1207IDGKR PREVIEW MSOP DGK 8 None Call TI Call TI ADS1207IDGKT PREVIEW MSOP DGK 8 None Call TI Call TI The marketing status values are defined as follows ACTIVE Product device recommended for new designs LIFEBUY TI has announced that the device will be discontinued and a lifetime buy period is in effect NRND Not recommended for new designs Device is in production to support existing customers but TI does not recommend using this part in a new design PREVIEW Device has been announced but is not in production Samples may or may not be available OBSOLETE TI has discontinued the production of the device 2 Eco Plan May not be currently available please check http www ti com productcontent for the latest availability information and additional product content details None Not yet available Lead Pb Free Pb Free RoHS TI s terms Lead Fr
4. V VOL Low level output voltage Vpp 4 5V IQH 2mA 0 5 V lO Output sink current 1 5V lt VoL lt VDD 10 mA Co Output capacitance 5 pF CL Load capacitance 30 pF Digital Inputs 6 Logic family LVCMOS and LVTTL VIH High level input Voltage Vpp 3 6V 2 Vpp 0 3 V VIL Low level input voltage Vpp 3 0V 0 3 0 8 V IIN Input current Vi Vpp or GND 1 nA CI Input capacitance 5 pF Digital Outputs Logic family LVCMOS and LVTTL Vpp 3V IOH 1004A Vpp 0 2 V VOH High level output voltage VDD 3V IOH 2MA DA V Vpp 3V lo 100A 0 2 V VOL Low level output voltage VDD 3V IOH 2MA 04 V lO Output sink current 10 mA Co Output capacitance 5 pF CL Load capacitance 30 pF Power Supply Low voltage levels VDD Power supply voltage 5V logic levels BUF GND Supply current IDD BUF Vpp Vpp 3 3V P dissipati ower dissipation Vpp 5V 1 All typical values are at T 25 C 2 Integral nonlinearity is defined as the maximum deviation of the line through the end points of the transfer curve for ViN OV to VREF or 0 1V to Vpp 0 2V expressed either as the number of LSBs or as a percent of measured input range Ensured by design Maximum values including temperature drift are ensured over the full specified temperature range Applicable for 5 0V nominal supply Vpp min 4 5V and Vpp max 5 5V Applicable for 3 0V no
5. e of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice TI is not responsible or liable for any such statements Following are URLs where you can obtain information on other Texas Instruments products and application solutions Products Applications Amplifiers amplifier ti com Audio www ti com audio Data Converters dataconverter ti com Automotive www ti com automotive DSP dsp ti com Broadband www ti com broadband Interface interface ti com Digital Control www ti com digitalcontrol Logic logic ti com Military www ti com military Power Mgmt power ti com Optical Networking www ti com opticalnetwork Microcontrollers microcontroller ti com Security www ti com security Telephony www ti com telephony Video amp Imaging www ti com video Wireless www ti com wireless Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2005 Texas Instruments Incorporated
6. ee or Pb Free mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances including the requirement that lead not exceed 0 1 by weight in homogeneous materials Where designed to be soldered at high temperatures TI Pb Free products are suitable for use in specified lead free processes Green RoHS amp no Sb Br TI defines Green to mean Pb Free and in addition uses package materials that do not contain halogens including bromine Br or antimony Sb above 0 1 of total product weight 3 MSL Peak Temp The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications and peak solder temperature Important Information and Disclaimer The information provided on this page represents TI s knowledge and belief as of the date that it is provided TI bases its knowledge and belief on information provided by third parties and makes no representation or warranty as to the accuracy of such information Efforts are underway to better integrate information from third parties TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals TI and TI suppliers consider certain information to be proprietary and thus CAS numbers and other limited information may not be available for release In no event shall TI s liability arising out o
7. f such information exceed the total purchase price of the TI part s at issue in this document sold by TI to Customer on an annual basis Addendum Page 1 MECHANICAL DATA DGK S PDSO G8 PLASTIC SMALL OUTLINE PACKAGE Z y 1 4 3 10 2 90 does EEE a L 1 10 MAX L ki A 4073329 D 12 03 NOTES All linear dimensions are in millimeters This drawing is subject to change without notice Body dimensions do not include mold flash or protrusion Falls within JEDEC MO 187 variation AA We TEXAS INSTRUMENTS www ti com IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment Tl warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support
8. minal supply Vpp min 3 0V and Vpp max 3 6V ADS1206 l YO Texas ADS1207 www ti com SBAS311 MARCH 2004 PIN ASSIGNMENTS Terminal Functions TERMINAL NAME NO DESCRIPTION CLKOUT Clock output CLKIN Master clock input GND Ground 2 3 REFNOUT 4 5 6 7 VSSOP PACKAGE TOP VIEW CLKOUT CLKIN GND VIN Analog input Power supply 3 3V or 5V nominal FOUT Modulator output BUF 8 Buffered mode select REFIN OUT VDD Figure 1 Timing Diagram TIMING REQUIREMENTS 5 0V over recommended operating free air temperature range at 40 C to 85 C and Vpp 5V unless otherwise noted PARAMETER MIN MAX UNITS ADS1206 1000 TBD n aie re torao orao ns tp1 FOUT rising edge delay after input clock rising edge TBD ns i120 20 ns NOTE Applicable for 5 0V nominal supply Vpp min 4 5V and Vpp max 5 5V All input signals are specified with tr tF 5ns 10 to 90 of VDD and timed from a voltage level of Vi VjH 2 See timing diagram TIMING REQUIREMENTS 3 3V over recommended operating free air temperature range at 40 C to 85 C and Vpp 3 3V unless otherwise noted PARAMETER MIN MAX UNITS ee ADS1206 1000 TBD ns tct PEL One ADS1207 250 TBD ns tw1 Input clock high time to1 2 100 tc1 2 100 ns tp1 FOUT rising edge delay after input clock rising edge TBD TBD twe2 FOUT high time tc1 8 tc1 8 ns tR1 FOUT rise time TBD TBD TBD TBD NO
9. mperature range at 40 C to 85 C Vpp 5V or Vpp 3V VREF internal 2 5V CLKIN 1MHz unless otherwise noted ADS1206I ADS12071 PARAMETER TEST CONDITIONS MIN TYP 1 MAX UNITS DC Accuracy a BUF 1 0 012 FSR INL Integral linearity error 2 r 00le GEESE DNL Differential nonlinearity 3 TBD FSR BUF 0 VIN OV 7 235 mv Vos Ofset error BUF 1 VIN 0 1V 47 35 mV TCVOS Offset error drift 5 20 uwv ec GERR Gain error 4 Referenced to VREF 0 1 0 7 FSR TCGERR Gain error drift 20 ppm C Noise TBD uVrms _ 4 5V lt Vpp lt 5 5V 55 dB PSRR Power supply rejection ratio 3 0V lt Vpp lt 3 6V 65 JB Analog Input FSR Full scale range Input capacitance Input current Differential input resistance Differential input capacitance FS sinewave 3dB BUF 0 iia FS sinewave 3dB BUF 1 Output Signal ADS1206l 0 1 0 9 CLKIN FRUT Output frequency span ADS12071 0 05 0 45 CLKIN Voltage Reference Output VOUT Reference voltage output 2 3 2 5 2 7 V Initial accuracy 8 dVouT dT Output voltage temperature drift 50 ppm C i f 0 1Hz to 10Hz CL 10uF 100 uVpp Sulpubveliage nels f 10Hz to 10kHz CL 10uF TBD uVrms a Vpp 4 5V to 5 5V 70 dB PSRR Power supply rejection ratio Vpp 3 0V to 36V 60 JB Reference output resistance 1 kQ Turn on settling time to 0 1 at CL 0 3
10. nce degradation to complete device failure Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications ORDERING INFORMATION MAXIMUM INTEGRAL MAXIMUM LINEARITY GAIN SPECIFIED ERROR ERROR PACKAGE PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT MEDIA PRODUCT FS LEAD DESIGNATOR RANGE MARKING NUMBER QUANTITY 40 C to 85 C TBD ADS1206IDGKT Tape and Reel 250 ADS1206 0 012 0 7 VSSOP 8 DGK 40 C to 85 C Teo ADS1206IDGKR Tape and Reel 2000 TBD ADS1207IDGKT Tape and Reel 250 ADS1207 0 012 0 7 VSSOP 8 DGK TBD ADS1207IDGKR Tape and Reel 2000 1 For the most current package and ordering information refer to our web site at www ti com ABSOLUTE MAXIMUM RATINGS over operating free air temperature range unless otherwise noted 1 ADS1204 UNIT Supply Voltage GND to VDD Analog Input Voltage with Respect to GND GND 0 3 to Vpp 0 3 Reference Input Voltage with Respect to GND Digital Input Voltage with Respect to GND Input Current to Any Pin Except Supply 20 to 20 mA Operating Free Air Temperature Range Ta 40 to 85 C Lead Temperature 1 6mm or 1 16 inch from case for 10s 1 Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device These are stress ratings only and functional operation of the device at these or any other conditi
11. ons beyond those indicated under recommended operating conditions is not implied Exposure to absolute maximum rated conditions for extended periods may affect device reliability RECOMMENDED OPERATING CONDITIONS PARAMETER Low Voltage Levels 5V Logic Levels Supply Voltage GND to Vpp Reference Input Voltage BUF 0 BUF 1 ADS1206 ADS1207 Analog Inputs External Clock Operating Junction Temperature Range TJ 1 with reduced accuracy minimum clock can go up to 500kHz DISSIPATION RATING TABLE Ta lt 25 C DERATING FACTOR Ta 70 C Ta 85 C BOARD PACKAGE POWER RATING ABOVE Ta 25 C 1 POWER RATING POWER RATING Low k 2 DGK 469 6mW 3 756MW C 300 5mW 244 2mW High K 3 691 4mW 5 531mWPC 442 5mW 359 5mW 1 This is the inverse of the traditional junction to ambient thermal resistance R JA Thermal resistances are not production tested and are for informational purposes only 2 The JEDEC Low K 1s board design used to derive this data was a 3 inch x 3 inch two layer board with 2 ounce copper traces on top of the board 3 The JEDEC High K 2s2p board design used to derive this data was a 3 inch x 3 inch multilayer board with 1 ounce internal power and ground planes and 2 ounce copper traces on the top and bottom of the board ki TEXAS INSTRUMENTS www ti com ELECTRICAL CHARACTERISTICS ADS1206 ADS1207 SBAS311 MARCH 2004 Over recommended operating free air te
12. s or high voltage resistive dividers Counting output pulses over a 4ms period results in an effective 12 bit resolution for the ADS1206 using a 1MHz input clock For the ADS1207 using a 4MHz input clock the same result occurs over a 2ms period Both devices are designed for use in medium resolution measurements They are available in an 8 lead VSSOP package REFIN OUT O Reference Voltage VIN Modulator ADS1207 BUF CLKOUT CLKIN Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Instruments A semiconductor products and disclaimers thereto appears at the end of this data sheet All trademarks are the property of their respective owners PRODUCT PREVIEW information concerns products in the formative or design j Copyright 2004 Texas Instruments Incorporated phase of development Characteristic data and other specifications are design TEXAS goals Texas Instruments reserves the right to change or discontinue these products without notice INSTRUMENTS www ti com PRODUCT PREVIEW PRODUCT PREVIEW ADS1206 ii ADS1207 We Texas s www ti com SBAS311 MARCH 2004 A This integrated circuit can be damaged by ESD Texas Instruments recommends that all integrated circuits be handled with appropriate dy precautions Failure to observe proper handling and installation procedures can cause damage ESD damage can range from subtle performa
13. this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed TI assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using TI components To minimize the risks associated with customer products and applications customers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties conditions limitations and notices Reproduction of this information with alteration is an unfair and deceptive business practice TI is not responsible or liable for such altered documentation Resal
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TEXAS INSTRUMENTS ADS1206 ADS1207 handbook