General Description
The MAX191 is a monolithic, CMOS, 12-bit analog-to-digital converter (ADC) featuring differential inputs, track/hold (T/H), internal voltage reference, internal or external clock, and parallel or serial µP interface. The MAX191 has a 7.5µs conversion time, a 2µs acquisition time, and a guaranteed 100ksps sample rate.

FEATUREs
♦ 12-Bit Resolution, 1/2LSB Linearity
♦ +5V or ±5V Operation
♦ Built-In Track/Hold
♦ Internal Reference with Adjustment Capability
♦ Low Power: 3mA Operating Mode 20µA Power-Down Mode
♦ 100ksps Tested Sampling Rate
♦ Serial and 8-Bit Parallel µP Interface
♦ 24-Pin Narrow DIP and Wide SO Packages

APPLICATIONs
    Battery-Powered Data Logging
    PC Pen Digitizers
    High-Accuracy Process Control
    Electromechanical Systems
    Data-Acquisition Boards for PCs
    Automatic Testing Systems
    Telecommunications
    Digital Signal Processing (DSP)