General Description
The MAX148/MAX149 10-bit data-acquisition systems combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. They operate from a single +2.7V to +5.25V supply, and sample to 133ksps. 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 +5.25V
♦ Internal 2.5V Reference (MAX149)
♦ 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