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