| Resolution (Bits) | 8 |
| Number of input channels | 1 |
| Sample rate (Max) (kSPS) | 10 |
| Interface type | Parallel |
| Architecture | SAR |
| Input type | Differential |
| Rating | Catalog |
| Reference mode | Ext, Supply |
| Input range (Max) (V) | 5.5 |
| Input range (Min) (V) | 0 |
| Operating temperature range (C) | 0 to 70 |
| Power consumption (Typ) (mW) | 9.5 |
| Analog voltage AVDD (Min) (V) | 4.5 |
| Analog voltage AVDD (Max) (V) | 5.5 |
| INL (Max) (+/-LSB) | 1 |
| Digital supply (Min) (V) | 4.5 |
| Digital supply (Max) (V) | 5.5 |
- Compatible With 8080-μP Derivatives – No
Interfacing Logic Needed – Access Time 135 ns - Easy Interface to All Microprocessors, or Operates
as a Stand-Alone Deivce - Differential Analog Voltage Inputs
- Logic Inputs and Outputs Meet Both MOS and
TTL Voltage-Level Specifications - Works With 2.5-V (LM336) Voltage Reference
- On-Chip Clock Generator
- 0-V to 5-V Analog Input Voltage Range With
Single 5-V Supply - No Zero Adjust Required
- 0.3-Inch Standard Width 20-Pin DIP Package
- 20-Pin Molded Chip Carrier or Small Outline
Package - Operates Ratiometrically or With 5 VDC, 2.5 VDC,
or Analog Span Adjusted Voltage Reference - Key Specifications
- Resolution: 8 Bits
- Total Error: ±1/4 LSB, ±1/2 LSB and ±1 LSB
- Conversion Time: 100 μs
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.