MP8820
FEATURES
- Precision 7- Bit Plus Sign ADC
- 8 Channel Analog Mux
- Single Reference to GND
- Input Referenced to User Supplied VMID
- DNL= ±1/2 LSB, INL=± 1 LSB
- Single Supply: 5 V
- ESD Protection: 2000 V
8-Bit Analog-to-Digital Converter with an 8-Channel MUX
APPLICATIONS
- Servo Control
- Low Cost Audio Control
- Voice Acquisition
GENERAL DESCRIPTION
The MP8820 is a precision 1.6 MHz sampling 7-bit plus sign Analog-to-Digital Converter with an eight channel input mux and µP interface. The device has internal circuitry which receives the user supplied reference voltages VREF(+) and VREF(- ), and generates the ADC reference voltages VMID (VREF(+)
- VREF(- )). Since VREF(+) is internally buffered and VREF(- ) is generally ground, this structure allows the user to easily generate an input range biased about a user-supplied VMID from a grounded reference source.
The internal ADC reference voltages are capable of swinging to within 0.5 V of the supply rails, giving the MP8820 a...
