General Description
The MAX146/MAX147 12-bit data-acquisition systems combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX146 operates from a single +2.7V to +3.6V supply; the MAX147 operates from a single +2.7V to +5.25V supply. Both devices’ analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation.

Features
♦ 8-Channel Single-Ended or 4-Channel Differential Inputs
♦ Single-Supply Operation:
    +2.7V to +3.6V (MAX146)
    +2.7V to +5.25V (MAX147)
♦ Internal 2.5V Reference (MAX146)
♦ Low Power: 1.2mA (133ksps, 3V supply)
    54µA (1ksps, 3V supply)
    1µA (power-down mode)
♦ SPI/QSPI/Microwire/TMS320-Compatible 4-Wire Serial Interface
♦ Software-Configurable Unipolar or Bipolar Inputs
♦ 20-Pin DIP/SSOP Packages

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