General Description
The MAX1112/MAX1113 are low-power, 8-bit, 8-channel analog-to-digital converters (ADCs) that feature an internal track/hold, voltage reference, clock, and serial interface. They operate from a single +4.5V to +5.5V supply and consume only 135µA while sampling at rates up to 50ksps. The MAX1112’s 8 analog inputs and the MAX1113’s 4 analog inputs are software-configurable, allowing unipolar/bipolar and singleended/differential operation.

FEATUREs
♦ +4.5V to +5.5V Single Supply
♦ Low Power: 135µA at 50ksps
   13µA at 1ksps
♦ 8-Channel Single-Ended or 4-Channel Differential
   Inputs (MAX1112)
♦ 4-Channel Single-Ended or 2-Channel Differential
   Inputs (MAX1113)
♦ Internal Track/Hold; 50kHz Sampling Rate
♦ Internal 4.096V Reference
♦ SPI/QSPI/MICROWIRE-Compatible Serial Interface
♦ Software-Configurable Unipolar or Bipolar Inputs
♦ Total Unadjusted Error: ±1LSB (max)
                                         ±0.3LSB (typ)

APPLICATIONs
   Portable Data Logging
   Hand-Held Measurement Devices
   Medical Instruments
   System Diagnostics
   Solar-Powered Remote Systems
   4–20mA-Powered Remote
      Data-Acquisition Systems