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General Description

The MAX1110/MAX1111 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 +2.7V to +5.5V supply and consume only 85?A while sampling at rates up to 50ksps. The MAX1110¡¯s 8 analog inputs and the MAX1111¡¯s 4 analog inputs are software-configurable, allowing unipolar/bipolar and single-ended/differential operation.

Features

? +2.7V to +5.5V Single Supply

? Low Power: 85?A at 50ksps 6?A at 1ksps

? 8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1110)

? 4-Channel Single-Ended or 2-Channel Differential Inputs (MAX1111)

? Internal Track/Hold; 50kHz Sampling Rate

? Internal 2.048V Reference

? SPI/QSPI/MICROWIRE-Compatible Serial Interface

? Software-Configurable Unipolar or Bipolar Inputs

? Total Unadjusted Error: ¡À1LSB max ¡À0.3LSB typ

Applications

Portable Data Logging

Hand-Held Measurement Devices

Medical Instruments

System Diagnostics

Solar-Powered Remote Systems

4¨C20mA-Powered Remote Data-Acquisition Systems