The ADC0844 and ADC0848 are CMOS 8-bit successive approximation A/D converters with versatile analog input multiplexers. The 4-channel or 8-channel multiplexers can be software configured for single-ended, differential or pseudo-differential modes of operation.
The differential mode provides low frequency input common mode rejection and allows offsetting the analog range of the converter. In addition, the A/D's reference can be adjusted enabling the conversion of reduced analog ranges with 8-bit resolution.
The A/Ds are designed to operate from the control bus of a wide variety of microprocessors. TRI-STATE output latches that directly drive the data bus permit the A/Ds to be configured as memory locations or I/O devices to the microprocessor with no interface logic necessary.
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| Resolution (Bits) | 8 |
| Sample rate (max) (ksps) | 25 |
| Number of input channels | 8 |
| Interface type | Parallel |
| Architecture | SAR |
| Input type | Differential, Pseudo-Differential, Single-ended |
| Multichannel configuration | Multiplexed |
| 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) | 5 |
| Analog supply (min) (V) | 4.5 |
| Analog supply voltage (max) (V) | 6 |
| Digital supply (min) (V) | 4.5 |
| Digital supply (max) (V) | 6 |
| PLCC (FN) | 28 | 155.0025 mm² 12.45 x 12.45 |
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