Maxim Integrated MAX11646EUA

Description
The MAX11646/MAX11647 are low-power, 10-bit, 1-/2-channel analog-to-digital converters (ADCs) with internal track/hold (T/H), voltage reference, a clock, and an I2C-compatible 2-wire serial interface. They operate from a single supply of 2.7V to 3.6V (MAX11647) or 4.5V to 5.5V (MAX11646) and require only 6µA at a 1ksps sample rate. AutoShutdownTM powers down the devices between conversions, reducing supply current to less than 1μA at lower throughput rates. The MAX11646/MAX11647 each measure two single-ended or one differential input. The fully differential analog inputs are software configurable for unipolar or bipolar and single-ended or 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 MAX11647 features a 2.048V internal reference and the MAX11646 features a 4.096V internal reference.

Features
Ultra-Tiny 1.9mm x 2.2mm Wafer Level Package
High-Speed I2C-Compatible Serial Interface
400kHz Fast Mode
1.7MHz High-Speed Mode
Single Supply
2.7V to 3.6V (MAX11647)
4.5V to 5.5V (MAX11646)
Internal Reference
2.048V (MAX11647)
4.096V (MAX11646)
External Reference: 1V to VDD
Internal Clock
2-Channel Single-Ended or 1-Channel Fully Differential
Internal FIFO with Channel-Scan Mode
Low Power
670μA at 94.4ksps
230μA at 40ksps
60μA at 10ksps
6μA at 1ksps
0.5μA in Power-Down Mode
Software-Configurable Unipolar/Bipolar

Applications
Handheld Portable Applications
Medical Instruments
Battery-Powered Test Equipment
Power-Supply Monitoring
Solar-Powered Remote Systems
Received-Signal-Strength Indicators
System Supervision