General Description

The MAX157/MAX159 low-power, 10-bit analog-to-digital converters (ADCs) are available in 8-pin µMAX and DIP packages. Both devices operate with a single +2.7V to +5.25V supply and feature a 7.4µs successive-approximation ADC, automatic power-down, fast wake-up (2.5µs), an on-chip clock, and a high-speed,

3-wire serial interface.

Features

♦ Single-Supply Operation (+2.7V to +5.25V)

♦ Two Single-Ended Channels (MAX157) Single Pseudo-Differential Channel (MAX159)

♦ Low Power

0.9mA (at 108ksps, +3V)

100µA (at 10ksps, +3V)

10µA (at 1ksps, +3V)

<0.2µA (power-down mode)

♦ Internal Track/Hold

♦ 108ksps Sampling Rate

♦ SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface

♦ Space-Saving 8-Pin µMAX Package

♦ Pin-Compatible 12-Bit Upgrades Available

Applications

Battery-Powered Systems

Instrumentation

Portable Data Logging

Test Equipment

Isolated Data Acquisition

Medical Instruments

Process-Control Monitoring

System Supervision