| Resolution (Bits) | 8 |
| Number of input channels | 8 |
| Sample rate (Max) (kSPS) | 25 |
| Interface type | Parallel |
| Architecture | SAR |
| Input type | Differential, Pseudo-Differential, Single-Ended |
| Multi-channel configuration | Multiplexed |
| Rating | Catalog |
| Reference mode | Ext |
| Input range (Max) (V) | 6 |
| Input range (Min) (V) | 0 |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 5 |
| Analog voltage AVDD (Min) (V) | 4.5 |
| Analog voltage AVDD (Max) (V) | 6 |
| INL (Max) (+/-LSB) | 1 |
| Digital supply (Min) (V) | 4.5 |
| Digital supply (Max) (V) | 6 |
- Easy Interface to All Microprocessors
- Operates Ratiometrically or with 5 VDC Voltage Reference
- No Zero or Full-Scale Adjust Required
- 4-Channel or 8-Channel Multiplexer with Address Logic
- Internal Clock
- 0V to 5V Input Range with Single 5V Power Supply
- Standard Width 20-Pin or 24-Pin PDIP
- 28 Pin PLCC Package
Key Specifications
- Resolution: 8 Bits
- Total Unadjusted Error: ±? LSB and ± 1 LSB
- Single Supply: 5 VDC
- Low Power: 15 mW
- Conversion Time: 40 μs
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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.