By using a half-flash conversion technique, the 8-bit ADC0820-N CMOS A/D offers a 1.5 µs conversion time and dissipates only 75 mW of power. The half-flash technique consists of 32 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC.
The input to the ADC0820-N is tracked and held by the input sampling circuitry eliminating the need for an external sample-and-hold for signals moving at less than 100 mV/µs.
For ease of interface to microprocessors, the ADC0820-N has been designed to appear as a memory location or I/O port without the need for external interfacing logic.
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| Resolution (Bits) | 8 |
| Sample rate (max) (ksps) | 658 |
| Number of input channels | 1 |
| Interface type | Parallel |
| Architecture | SAR |
| Input type | Single-ended |
| Rating | Catalog |
| Reference mode | External |
| Input voltage range (max) (V) | 8 |
| Input voltage range (min) (V) | 0 |
| Operating temperature range (°C) | -40 to 85 |
| Power consumption (typ) (mW) | 65 |
| Analog supply (min) (V) | 4.5 |
| Analog supply voltage (max) (V) | 8 |
| Digital supply (min) (V) | 4.5 |
| Digital supply (max) (V) | 8 |
| SOIC (DW) | 20 | 131.84 mm² 12.8 x 10.3 |
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