General Description

The MAX11626–MAX11629/MAX11632/MAX11633 are serial 12-bit analog-to-digital converters (ADCs) with an internal reference. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX11632/MAX11633 have 16 input channels; the MAX11628/MAX11629 have 8 input channels; and the MAX11626/MAX11627 have 4 input channels. These six devices operate from either a +3V supply or a +5V supply, and contain a 10MHz SPI™-/QSPI™-/MICROWIRE™-compatible serial port.

Features

♦ Analog Multiplexer with Track/Hold

    16 Channels (MAX11632/MAX11633)

    8 Channels (MAX11628/MAX11629)

    4 Channels (MAX11626/MAX11627)

♦ Single Supply

    2.7V to 3.6V (MAX11627/MAX11629/MAX11633)

    4.75V to 5.25V (MAX11626/MAX11628/MAX11632)

♦ Internal Reference

    2.5V (MAX11627/MAX11629/MAX11633)

    4.096V (MAX11626/MAX11628/MAX11632)

♦ External Reference: 1V to VDD

♦ 16-Entry First-In/First-Out (FIFO)

♦ Scan Mode, Internal Averaging, and Internal Clock

♦ Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing

    Codes Over Temperature

♦ 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible

    Interface

♦ Small Packages

    16-Pin QSOP (MAX11626–MAX11629)

    24-Pin QSOP (MAX11632/MAX11633)

Applications

    System Supervision

    Data-Acquisition Systems

    Industrial Control Systems

    Patient Monitoring

    Data Logging

    Instrumentation