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The ADC0844 is 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.
ADC0844CCN Pinout
ADC0844CCN Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | RD’ | Read (Active Low) |
| 2 | CS’ | Chip Select (Active Low) |
| 3 | CH1 | Analog Channel Input 1 |
| 4 | CH2 | Analog Channel Input 2 |
| 5 | CH3 | Analog Channel Input 3 |
| 6 | CH4 | Analog Channel Input 4 |
| 7 | AGND | Analog Ground |
| 8 | Vref | Reference Voltage |
| 9 | MSB DB7 | Data Bit 7 |
| 10 | DGND | Digital Ground |
| 11 | DB6 | Data Bit 6 |
| 12 | DB5 | Data Bit 5 |
| 13 | DB4 | Data Bit 4 |
| 14 | DB3/MA3 | Data Bit 3 |
| 15 | DB2/MA2 | Data Bit 2 |
| 16 | DB1/MA1 | Data Bit 1 |
| 17 | DB0/MA0 | Data Bit 0 |
| 18 | INTR’ | Interrupt (Active Low) |
| 19 | WR’ | Write (Active Low) |
| 20 | VCC | Supply Voltage |
ADC0844CCN Features
- 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
- 0.3″ standard width 20-pin or 24-pin DIP
- 28 Pin Molded Chip Carrier Package
ADC0844CCN Specifications
- Resolution 8 Bits
- Total Unadjusted Error ±1⁄2 LSB and ± 1 LSB
- Single Supply 5 VDC
- Low Power 15 mW
- Conversion Time 40 μs
Application
- High Accuracy Comparators
- Operating with Automotive Ratiometric Transducers
You can download this datasheet for ADC0844CCN 8-bit A/D Converter with MUX (4ch) from the link given below:
