BurrĆBrown Products from Texas Instruments
ADS8422
SLAS512B – JUNE 2006 – REVISED DECEMBER 2006
16-BIT, 4-MSPS, PSEUDO...
BurrĆBrown Products from Texas Instruments
ADS8422
SLAS512B – JUNE 2006 – REVISED DECEMBER 2006
16-BIT, 4-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE
FEATURES
Fully Differential Input with Pseudo-Bipolar Input Range -4 V to +4 V
16-Bit NMC at 4 MSPS 1 LSB INL Typ 92dB SNR, -102dB THD Typ with 100-kHz
Input
Internal 4.096-V Reference and Reference Buffer
REFIN/2 Available for Setting Analog Input Common-Mode
Voltage
Zero Latency High-Speed Parallel Interface Single Supply Operation Capability Low Power: 155 mW at 4 MHz Typ, Flexible
Power-Down Scheme
Pin-Out Similar to ADS8412/8402 48-Pin 9×9 TQFP Package
APPLICATIONS
DWDM Instrumentation High-Speed, High-Resolution, Zero Latency
Data Acquisition Systems Transducer Interface Medical Instruments Spectrum Analysis ATE
DESCRIPTION
The ADS8422 is a 16-bit, 4-MHz A/D converter with an internal 4.096-V reference. The device includes a 16-bit capacitor-based multi-bit SAR A/D converter with inherent sample and hold. This converter includes a full 16-bit interface and an 8-bit option where data is read using two 8-bit read cycles if necessary.
The ADS8422 has a fully differential, pseudo-bipolar input. It is available in a 48-lead TQFP package and is characterized over the industrial -40°C to +85°C temperature range.
TYPE/SPEED 18-Bit Pseudo-Diff 18-Bit Pseudo-Bipolar, Fully Diff 16-Bit Pseudo-Diff
16-Bit P...
