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

Description

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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.

Key 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 V_DD
• 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/Uses

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