General Description
The MAX1282/MAX1283 12-bit analog-to-digital converters (ADCs) combine a 4-channel analog-input multiplexer, high-bandwidth track/hold (T/H), and serial interface with high conversion speed and low power consumption. The MAX1282 operates from a single +4.5V to +5.5V supply; the MAX1283 operates from a single +2.7V to +3.6V supply. Both devices’ analog inputs are software configurable for unipolar/bipolar and single-ended/pseudo-differential operation.

Features
♦ 4-Channel Single-Ended or 2-Channel
   Pseudo-Differential Inputs
♦ Internal Multiplexer and Track/Hold
♦ Single-Supply Operation
   +4.5V to +5.5V (MAX1282)
   +2.7V to +3.6V (MAX1283)
♦ Internal +2.5V Reference
♦ 400kHz Sampling Rate (MAX1282)
♦ Low Power:
   2.5mA (400ksps)
   1.3mA (REDP)
   0.9mA (FASTPD)
   2µA (FULLPD)
♦ SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire
   Serial Interface
♦ Software-Configurable Unipolar or Bipolar Inputs
♦ 16-Pin TSSOP Package

Applications
   Portable Data Logging
   Data Acquisition
   Medical Instruments
   Battery-Powered Instruments
   Pen Digitizers
   Process Control