General Description
The MAX11200/MAX11210 are ultra-low-power (< 300FA active current), high-resolution, serial output ADCs. These devices provide the highest resolution per unit power in the industry, and are optimized for applications that require very high dynamic range with low power, such as sensors on a 4mA to 20mA industrial control loop. Optional input buffers provide isolation of the signal inputs from the switched capacitor sampling network allowing these converters to be used with high-imped ance sources without compromising available dynamic range or linearity. The devices provide a high-accuracy internal oscillator that requires no external components. When used with the specified data rates, the internal digital filter provides more than 100dB rejection of 50Hz or 60Hz line noise. The devices are configurable using the SPI interface and include four GPIOs that can be used for external mux control. The MAX11210 includes digital programmable gain of 1, 2, 4, 8, or 16.
The MAX11200/MAX11210 operate over the -40NC to +85NC temperature range, and are available in a 16-pin QSOP package.

FEATUREs
♦ 24.0-Bit ENOB at 5sps
   20.9-Bit Noise-Free Resolution at 10sps
   19-Bit Noise-Free Resolution at 120sps
♦ 570nVRMS Noise at 10sps, Q3.6VFS Input
♦ 1ppm INL (typ), 10ppm (max)
♦ No Missing Codes
♦ Ultra-Low Power Dissipation
   Operating-Mode Current Drain < 300µA (max)
   Sleep-Mode Current Drain < 0.4µA
♦ Programmable Gain (1, 2, 4, 8, or 16) (MAX11210)
♦ 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
♦ Programmable Internal Clock or External Clock Mode
♦ > 100dB (min) 50Hz/60Hz Rejection
♦ SPI-, QSPI™-, MICROWIREM-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
♦ Q2kV ESD Protection
♦ Lead(Pb)-Free and RoHS-Compliant QSOP Package

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