The ADC0801, ADC0802, ADC0803, ADC0804, and ADC0805 devices are CMOS 8-bit successive approximation converters (ADC) that use a differential potentiometric ladder – similar to the 256R products. These converters are designed to allow operation with the NSC800 and INS8080A derivative control bus with Tri-state output latches directly driving the data bus. These ADCs appear like memory locations or I/O ports to the microprocessor and no interfacing logic is needed.
Differential analog voltage inputs allow increasing the common-mode rejection and offsetting the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.
| Resolution (Bits) | 8 |
| Sample rate (max) (ksps) | 10 |
| Number of input channels | 1 |
| Interface type | Parallel |
| Architecture | SAR |
| Input type | Differential |
| Rating | Catalog |
| Reference mode | External, Supply |
| Input voltage range (max) (V) | 5.5 |
| Input voltage range (min) (V) | 0 |
| Operating temperature range (°C) | 0 to 70 |
| Power consumption (typ) (mW) | 9.5 |
| Analog supply (min) (V) | 4.5 |
| Analog supply voltage (max) (V) | 5.5 |
| Digital supply (min) (V) | 4.5 |
| Digital supply (max) (V) | 5.5 |
| SOIC (DW) | 20 | 131.84 mm² 12.8 x 10.3 |