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MAX1231：12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference

The MAX1227/MAX1229/MAX1231 are serial 12-bit analog-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. 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 MAX1231 has 16 input channels, the MAX1229 has 12 input channels, and the MAX1227 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +3V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port. The MAX1231 is available in 28-pin 5mm x 5mm TQFN with exposed pad and 24-pin QSOP packages. The MAX1227/MAX1229 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.

Key Features Internal Temperature Sensor (±0.7°C Accuracy) 16-Entry First-In/First-Out (FIFO) Analog Multiplexer with True Differential Track/Hold 16-, 12-, 8-Channel Single Ended 8-, 6-, 4-Channel True Differential (Unipolar or Bipolar) Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Overtemperature Scan Mode, Internal Averaging, and Internal Clock Low-Power Single +3V Operation 1mA at 300ksps Internal 2.5V Reference or External Differential Reference 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible Interface Space-Saving 28-Pin 5mm x 5mm TQFN Package

MAX1227, MAX1229, MAX1231: Functional Diagram Applications/Uses Data Acquisition Systems Data Logging Industrial Control Systems Instrumentation Patient Monitoring System Supervision

DataSheet

Parametrics

Design kits & evaluation modules

• MAX11633EVSYS
• MAX11635EVSYS
• MAX1231BEVSYS

Quality and Environmental Data

• MAX1231.pdf

Related Products

• MAX11637：12-Bit, 300ksps ADCs with Differential Track/Hold, and Internal Reference
• MAX11629：12-Bit, 300ksps ADCs with FIFO and Internal Reference
• MAX1257：12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
• MAX1230：12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
• MAX1231：12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
• MAX146：+2.7V, Low-Power, 8-Channel, Serial 12-Bit ADCs

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