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.
| Resolution (Bits) | 16 |
| Sample rate (max) (ksps) | 4000 |
| Number of input channels | 1 |
| Interface type | Byte-Wide, Parallel |
| Architecture | SAR |
| Input type | Differential |
| Rating | Catalog |
| Reference mode | External, Internal |
| Input voltage range (max) (V) | 4.1 |
| Input voltage range (min) (V) | 4.1 |
| Features | Oscillator |
| Operating temperature range (°C) | -40 to 85 |
| Power consumption (typ) (mW) | 155 |
| Analog supply (min) (V) | 4.75 |
| Analog supply voltage (max) (V) | 5.25 |
| SNR (dB) | 93 |
| Digital supply (min) (V) | 2.7 |
| Digital supply (max) (V) | 5.25 |
| TQFP (PFB) | 48 | 81 mm² 9 x 9 |
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