GENERAL DESCRIPTION

SNAD02C is a low cost serial 10-bits ADC with 8 individual input channels. Each channel can be independently programmed to a digital or analog input mode. In the analog input mode, this single-ended channel accepts an analog input signal from 0 to VREF and converts the signal into 12-bit digital codes (with 10-bit accuracy guaranteed). In the digital input mode, the channel can be treated as digital input port and the logic level appears at the channel can be acquired. SNAD02C has a synchronous 3-wires serial interface. Through this interface, the host CPU can easily control SNAD02C.

FEATURES

? Single Supply: 2.7V ~ 5.25V

? Eight Analog/Digital Input Channels.

? Internal 1.17v Bandgap Reference for Battery Monitoring. (Channel 7)

? Low Power Consumption: typical operating current: 500uA @ 3V, Standby current <1uA.

? Up to 25kHz Conversion Rate.

? 12-bits ADC with 8-bit effective number of bits

? 3-Wire Serial Interface

APPLICATIONS

? Battery-Powered Systems

? Instrumentation

? Portable Data Logging

? Test Equipment

? Data Acquisition

? Process-Control Monitoring

? Digital Input Bus Extender