Packaging information
| Package | Pins PLCC (FN) | 28 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 750 | LARGE T&R |
Features for the ADC0808-N
- Easy Interface to All Microprocessors
- Operates Ratiometrically or with 5 VDC or Analog Span Adjusted Voltage Reference
- No Zero or Full-Scale Adjust Required
- 8-Channel Multiplexer with Address Logic
- 0V to VCC Input Range
- Outputs meet TTL Voltage Level Specifications
- ADC0808 Equivalent to MM74C949
- ADC0809 Equivalent to MM74C949-1
Key Specifications
- Resolution: 8 Bits
- Total Unadjusted Error: ±½ LSB and ±1 LSB
- Single Supply: 5 VDC
- Low Power: 15 mW
- Conversion Time: 100 μs
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Description for the ADC0808-N
The ADC0808, ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit analog-to-digital converter, 8-channel multiplexer and microprocessor compatible control logic. The 8-bit A/D converter uses successive approximation as the conversion technique. The converter features a high impedance chopper stabilized comparator, a 256R voltage divider with analog switch tree and a successive approximation register. The 8-channel multiplexer can directly access any of 8-single-ended analog signals.
The device eliminates the need for external zero and full-scale adjustments. Easy interfacing to microprocessors is provided by the latched and decoded multiplexer address inputs and latched TTL TRI-STATE outputs.
The design of the ADC0808, ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0808, ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeatability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications. For 16-channel multiplexer with common output (sample/hold port) see ADC0816 data sheet. (See AN-247 (Literature Number SNOA595) for more information.)