Convertors take temperature sensing onboard

A Maxim Integrated Products product story

Edited by the Electronicstalk editorial team Aug 7, 2003

The MAX1226-MAX1231 and MAX1026-MAX1031 families of 12 and 10bit ADCs offer eight, 12 or 16 single-ended or four, six or eight true-differential analogue inputs.

The MAX1226-MAX1231 and MAX1026-MAX1031 families of 12 and 10bit ADCs offer eight, 12 or 16 single-ended or four, six or eight true-differential analogue inputs.

The new devices minimise microprocessor I/O requirements by including an on-chip FIFO, scan mode, internal clock mode, and internal averaging.

An onboard +/-1C accurate temperature sensor provides local temperature, eliminating the need for an external sensor.

This reduces cost and saves board space.

All features are accessed using a single SPI, QSPI or Microwire port.

The MAX1226/MAX1228/MAX1230 and MAX1026/MAX1028/MAX1030 operate from single +5V supplies, whereas the MAX1227/MAX1229/MAX1231 and MAX1027/MAX1029/MAX1031 operate from single +3.3V supplies.

Low-power operation consumes only 1.8mA at the maximum conversion rate of 300Ksample/s.

Automatic shutdown between conversions reduces operating current to 330uA at 10Ksample/s and no more than 5uA when the device is placed in complete shutdown.

Along with high channel count and low power consumption, their excellent AC performance (total harmonic distortion less than -82dB) and DC accuracy (+/-1LSB integral nonlinearity) make these devices ideal for industrial process control, instrumentation, and medical applications.

The eight-channel MAX1226, MAX1227, MAX1026 and MAX1027 are available in 16-pin QSOP packages, the 12-channel MAX1228, MAX1229, MAX1028 and MAX1029 are available in 20-pin QSOP packages, and the 16-channel MAX1230, MAX1231, MAX1030 and MAX1031 are available in 24-pin QSOP and 28-pin QFN packages.

All devices are available in both commercial (0 to +70C) and extended (-40 to +85C) temperature ranges.

Prices start at $3.46 (1000-up, FOB USA).