General Description
The MAX144/MAX145 low-power, 12-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 (MAX144) One
   Pseudo-Differential Channel (MAX145)
♦ Low Power
   0.9mA (108ksps, +3V Supply)
   100µA (10ksps, +3V Supply)
   10µA (1ksps, +3V Supply)
   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 10-Bit Versions Available

Applications
   Battery-Powered Systems
   Portable Data Logging
   Isolated Data Acquisition
   Process-Control Monitoring
   Instrumentation
   Test Equipment
   Medical Instruments
   System Supervision