LINEAR 2PB_2393 LTC2393-16 16-Bit 1Msps SAR ADC
Contents
1. output from a single ended high impedance input As a result a differential gain of 2 is achieved with no external feedback resistors and higher gain can be obtained by using feedback resistors Each of the two internal op amps achieve a low 1 9nV Hz input referred noise density resulting in a total output referred noise of just 8 2nV VHz The LT6350 enables high performance ADCs to achieve better than 110dB SNR over a 1MHz bandwidth Operating from a 2 7V to 12V total supply the LT63850 consumes 4 8mA supply current and has a shutdown mode that allows the system to reduce power consumption during periods of inactivity IN1 SHDN Vo OUT2 IN1 IN2 ve OUTI TECHNOLOGY www linear com 6350 1 800 4 LINEAR2. LTC2393 16 16 Bit 1Msps SAR ADC 9 t0 el 4 096V IN OVpp 1 8V to 5V E LTC2393 16 E Internal SPI or ____D Parallel 4 096V Wide Fully Differential Inout Range Achieves 94 2dB SNR High SNR is achieved with a 4 096V maximum signal swing that helos overcome background noise levels in demanding industrial environments The LTC2393 features a temperature compensated internal reference with 0 5 initial accuracy and 20ppm C max temperature coefficient over the automotive temperature range The LTC2393 16 dissipates 140mW at 1Msps and features a shutdown mode that reduces power dissipation to 175uW when not converting True no latency operation enables accurate one shot measurements even after idle periods with no minimum sample rate required To achieve uncompromised AC performance we recommend the fast settling LT6350 ADC Driver with rail to rail single ended input and differential outputs Features 16k Point FFT fi 1Msps Internal Reference Output 1Msps Throughput Rate fi 20kHz vs Temperature 2LSB INL Max Guaranteed 16 Bit No Missing Codes aie Seas 4 0975 me 4 0970 94 2dB SNR Typ at f 20kKHz THD 105dB SINAD 93 9dB Single 5V Supply e Muigai 1 8V to 5V I O Voltages 4 0960 140mW Power Dissipation z 4 096V Differential Inout Range cy 4 0950 Internal Reference 10ppm C i 4 0945 No Cycle Latency H 4 0940 fio One Shot Operation 4 0935 Parallel and Serial I
3. nterface Internal Conversion Clock 4 0925 Pin and Software Compatible Versions O 100 200 300 400 500 soa eet aetna Smet sage A 500ksps LTC2392 16 aes ii 250ksps LTC2391 16 AQC to 125 C Operation LQFP 48 Pin 7mm x 7mm LQFP and QFN Packages TECHNOLOGY www linear com 2393 1 800 4 LINEAR LT LTC LTM Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners LT6350 Low Noise Single Ended to Differential ADC Driver Rail to Rail Input and Outputs ov Fast Settling Time 240ns 0 01 8V Output Step 1 9nV V Hz Input Referred Op Amp Noise High Impedance Input Vin 3dB Bandwidth 33MHz OV to 4V 2 7V to 12V Supply Operation No External Gain Resistors Required An 4 8mA Supply Current LTC2393 16 Low Power Shutdown Low Distortion HD2 HDS 102dBc 97dBc at TOOKAZ Vourorr 4V pp Low Offset Voltage 400uUV Max High DC Linearity lt t1LSB 16 Bit 8Vp Low Input Current Noise 1 1pA Hz 3mm x 3mm 8 Pin DFN and 8 Lead MSOP Packages TL T i Drives High Speed 16 to 18 Bit SAR ADCs The LT6350 is a 33MHz low noise rail to rail input and output ADC driver that settles to 16 bits in just 350ns It is suitable for driving the latest high performance SAR ADCs like the LTC2393 16 The LT6350 incorporates two op amps and matched resistors to create a differential
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LINEAR 2PB_2393 LTC2393 16 16 Bit 1Msps SAR ADC