General Description

The MAX187/MAX189 serial 12-bit analog-to-digital converters (ADCs) operate from a single +5V supply and accept a 0V to 5V analog input. Both parts feature an 8.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed 3-wire serial interface.

Features

♦ 12-Bit Resolution

♦ ±1⁄2 LSB Integral Nonlinearity (MAX187A/MAX189A)

♦ Internal Track/Hold, 75kHz Sampling Rate

♦ Single +5V Operation

♦ Low Power: 2µA Shutdown Current 1.5mA Operating Current

♦ Internal 4.096V Buffered Reference (MAX187)

♦ 3-Wire Serial Interface, Compatible with SPI, QSPI, and Microwire

♦ Small-Footprint 8-Pin DIP and 16-Pin SO

Applications

    Portable Data Logging

    Remote Digital Signal Processing

    Isolated Data Acquisition

    High-Accuracy Process Control