General Description

The MAX1261/MAX1263 low-power, 12-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed, byte-wide parallel interface. They operate with a single +3V analog supply and feature a VLOGIC pin that allows them to interface directly with a +1.8V to +5.5V digital supply.

Features

♦ 12-Bit Resolution, ±0.5 LSB Linearity

♦ +3V Single Operation

♦ User-Adjustable Logic Level (+1.8V to +3.6V)

♦ Internal +2.5V Reference

♦ Software-Configurable, Analog Input Multiplexer

    8-Channel Single Ended/

    4-Channel Pseudo-Differential (MAX1261)

    4-Channel Single Ended/

    2-Channel Pseudo-Differential (MAX1263)

♦ Software-Configurable, Unipolar/Bipolar Inputs

♦ Low Power

    1.9mA (250ksps)

    1.0mA (100ksps)

    400µA (10ksps)

    2µA (Shutdown)

♦ Internal 3MHz Full-Power Bandwidth Track/Hold

♦ Byte-Wide Parallel (8 + 4) Interface

♦ Small Footprint

    28-Pin QSOP (MAX1261)

    24-Pin QSOP (MAX1263)

Applications

    Industrial Control Systems

    Data Logging

    Energy Management

    Patient Monitoring

    Data-Acquisition Systems

    Touch Screens