MAX1038

 High-Speed I2C-Compatible Serial Interface
     400kHz Fast Mode
     1.7MHz High-Speed Mode
Single Supply
     2.7V to 3.6V (MAX1037/MAX1039)
     4.5V to 5.5V (MAX1036/MAX1038)
Internal Reference
     2.048V (MAX1037/MAX1039)
     4.096V (MAX1036/MAX1038)
External Reference: 1V to VDD
Internal Clock
4-Channel Single-Ended or 2-Channel Pseudo-Differential (MAX1036/MAX1037)
12-Channel Single-Ended or 6-Channel Pseudo-Differential (MAX1038/MAX1039)
Internal FIFO with Channel-Scan Mode
Low Power
      350µA at 188ksps
      110µA at 75ksps
      8µA at 10ksps
      1µA in Power-Down Mode
Software Configurable Unipolar/Bipolar
Small Packages
      8-Pin SOT23 (MAX1036/MAX1037)
      16-Pin QSOP (MAX1038/MAX1039)

The MAX1036MAX1039 low-power, 8-bit, multichannel,analog-to-digital converters (ADCs) feature internal track/hold (T/H), voltage reference, clock, and an
I2C™-compatible 2-wire serial interface. These devices operate from a single supply and require only 350µA at the maximum sampling rate of 188ksps. Auto-Shutdown™ powers down the devices between conver-sions reducing supply current to less than 1µA at low throughput rates. The AX1036/MAX1037 have four ana-log input channels each, while the MAX1038/MAX1039 have twelve analog input channels. The analog inputs are software configurable for unipolar or bipolar and single-ended or pseudo-differential operation.

The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to VDD. The AX1037/
MAX1039 feature a 2.048V internal reference and the MAX1036/MAX1038 feature a 4.096V internal reference.

The MAX1036/MAX1037 are available in 8-pin SOT23 packages. The MAX1038/MAX1039 are available in 16-pin QSOP packages. The MAX1036MAX1039 are guar-anteed over the extended industrial temperature range (-40°C to +85°C). Refer to MAX1136MAX1139 for 10-bit devices and to the MAX1236MAX1239 for 12-bit devices.