12-Bit, 300ksps ADCs with FIFO and Internal Reference

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.

The MAX11626–MAX11629 are available in 16-pin QSOP packages. The MAX11632/MAX11633 are available in 24-pin QSOP packages. All six devices are specified over the extended -40°C to +85°C temperature range.Applications

* Data Logging * Data-Acquisition Systems * Industrial Control Systems * Instrumentation * Patient Monitoring * System Supervision

* 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)