The ADC08831/ADC08832 are 8-bit successive approximation Analog to Digital converters with 3-wire serial interfaces and a configurable input multiplexer for 2 channels. The serial I/O will interface to COPSfamily of micro-controllers, PLD's, microprocessors, DSP's, or shift registers. The serial I/O is configured to comply with the MICROWIRE serial data exchange standard.
To minimize total power consumption, the ADC08831/ADC08832 automatically go into low power mode whenever they are not performing conversions.
A track/hold function allows the analog voltage at the positive input to vary during the actual A/D conversion.
The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo-differential modes. The voltage reference input can be adjusted to allow encoding of small analog voltage spans to the full 8-bits of resolution.
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| Resolution (Bits) | 8 |
| Sample rate (max) (ksps) | 250 |
| Number of input channels | 1 |
| Interface type | Microwire (Serial I/O), SPI |
| Architecture | SAR |
| Input type | Differential, Single-ended |
| Rating | Catalog |
| Reference mode | External |
| Input voltage range (max) (V) | 6 |
| Input voltage range (min) (V) | 0 |
| Operating temperature range (°C) | -40 to 85 |
| Power consumption (typ) (mW) | 8.5 |
| Analog supply (min) (V) | 4.5 |
| Analog supply voltage (max) (V) | 6 |
| SNR (dB) | 48.5 |
| Digital supply (min) (V) | 4.5 |
| Digital supply (max) (V) | 6 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
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