General Description
The ADC0800 is an 8-bit monolithic A/D converter using P-channel ion-implanted MOS technology. It contains a high input impedance comparator, 256 series resistors and analog switches, control logic and output latches. Conversion is performed using a successive approximation technique where the unknown analog voltage is compared to the resistor tie points using analog switches. When the appropriate tie point voltage matches the unknown voltage, conversion is complete and the digital outputs contain an 8-bitcomplementary binary word corresponding to the unknown.
The binary output is TRI-STATE to permit bussing on common data lines.
Features
- Low cost
- ±5V, 10V input ranges
- No missing codes
- Ratiometric conversion
- TRI-STATE outputs
- Fast TC=50 us
- Contains output latches
- TTL compatible
- Supply voltages 5 VDC and —12 VDC
- Resolution 8 bits
- Linearity ± 1 LSB
- Conversion speed 40 clock periods
- Clock range 50 to 800 kHz
