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General Description

The MAX11209/MAX11211 are ultra-low-power (

Features

? 18-Bit Noise-Free Resolution

? 570nVRMS Noise at 10sps, ±3.6VFS Input

? 3ppm INL (typ), 15ppm (max)

? No Missing Codes

? Ultra-Low Power Dissipation

?? Operating-Mode Current Drain < 300μA (max)

?? Sleep-Mode Current Drain < 0.4μA

? Programmable Gain (1 to 128) (MAX11209)

? Four SPI-Controlled GPIOs for External Mux

?? Control

? 2.7V to 3.6V Analog Supply Voltage Range

? 1.7V to 3.6V Digital and I/O Supply Voltage Range

? Fully Differential Signal and Reference Inputs

? High-Impedance Inputs

?? Optional Input Buffers on Both Signal and

?? Reference Inputs

? > 100dB (min) 50Hz/60Hz Rejection

? SPI-, QSPI?-, MICROWIRE?-Compatible Serial

?? Interface

? On-Demand Offset and Gain Self-Calibration and

?? System Calibration

? User-Programmable Offset and Gain Registers

? -40°C to +85°C Operating Temperature Range

? ±2kV ESD Protection

? Lead(Pb)-Free and RoHS-Compliant QSOP

?? Package

??

Applications

?? Sensor Measurement (Temperature and Pressure)

?? Portable Instrumentation

?? Battery Applications

?? Weigh Scales