General Description
The MAX11212 is an ultra-low power (< 300FA max active current), high-resolution, serial-output ADC. This device provides the highest resolution per unit power in the industry, and is optimized for applications that require very high dynamic range with low power such as sensors on a 4mA to 20mA industrial control loop. The MAX11212 provides a high-accuracy internal oscillator that requires no external components.

Features
♦ 18-Bit Full-Scale Resolution
♦ 720nVRMS Noise (MAX11212B)
♦ 3ppm INL
♦ No Missing Codes
♦ Ultra-Low-Power Dissipation
    Operating-Mode Current Drain < 300µA (max)
    Sleep-Mode Current Drain < 0.1µA
♦ 2.7V to 3.6V Analog Supply Voltage Range
♦ 1.7V to 3.6V Digital and I/O Supply Voltage Range
♦ Fully Differential Signal Inputs
♦ Fully Differential Reference Inputs
♦ Internal System Clock
    2.4576MHz (MAX11212A)
    2.2528MHz (MAX11212B)
♦ External Clock
♦ Serial 2-Wire Interface (Clock Input and Data Output)
♦ On-Demand Offset and Gain Self-Calibration
♦ -40°C to +85°C Operating Temperature Range
♦ ±2kV ESD Protection
♦ Lead(Pb)-Free and RoHS-Compliant µMAX Package

Applications
    Sensor Measurement (Temperature and Pressure)
    Portable Instrumentation
    Battery Applications
    Weigh Scales