Texas Instruments' 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.
| Features |
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- Fully differential input with pseudo-bipolar input range of -4 V to +4 V
- 16-bit NMC at 4 MSPS
- 1 LSB INL typ
- 92 dB SNR, -102 dB THD typ with 100 kHz input
- Internal 4.096 V reference and reference buffer
- REFIN/2 available for setting analog input common-mode voltage
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- Zero latency
- High-speed parallel interface
- Low power: 155 mW at 4 MHz typ, flexible power-down scheme
- Single supply operation capability
- Pin-out similar to ADS8412/8402
- 48-pin 9 x 9 TQFP package
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| Applications |
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- DWDM
- Instrumentation
- High-speed, high-resolution, zero latency data acquisition systems
- Transducer interface
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- Medical instruments
- Spectrum analysis
- ATE
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