MAX11206 Datasheet, PDF (1/27 Pages) Maxim Integrated Products – 20-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with Programmable Gain and GPIO

19-5294; Rev 0; 8/10
EVAALVUAAILTAIOBNLEKIT
20-Bit, Single-Channel, Ultra-Low-Power, Delta-
Sigma ADCs with Programmable Gain and GPIO
General Description
The MAX11206/MAX11207 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 sig-
nal 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 MAX11206 includes
digital programmable gain of 1 to 128.
The MAX11206/MAX11207 operate over the -40NC to
+85NC temperature range, and are available in a 16-pin
QSOP package.
Applications
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
Features
S 20-Bit Noise-Free Resolution
S 570nVRMS Noise at 10sps, ±3.6VFS Input
S 3ppm INL (typ), 10ppm (max)
S No Missing Codes
S Ultra-Low Power Dissipation
Operating-Mode Current Drain < 300µA (max)
Sleep-Mode Current Drain < 0.4µA
S Programmable Gain (1 to 128) (MAX11206)
S Four SPI-Controlled GPIOs for External Mux
Control
S 2.7V to 3.6V Analog Supply Voltage Range
S 1.7V to 3.6V Digital and I/O Supply Voltage Range
S Fully Differential Signal and Reference Inputs
S High-Impedance Inputs
Optional Input Buffers on Both Signal and
Reference Inputs
S > 100dB (min) 50Hz/60Hz Rejection
S SPI-, QSPI™-, MICROWIRE™-Compatible Serial
Interface
S On-Demand Offset and Gain Self-Calibration and
System Calibration
S User-Programmable Offset and Gain Registers
S -40°C to +85°C Operating Temperature Range
S ±2kV ESD Protection
S Lead(Pb)-Free and RoHS-Compliant QSOP
Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX11206EEE+
-40°C to +85°C ^{16 QSOP}
MAX11207EEE+
-40°C to +85°C ^{16 QSOP}
+Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide
RESOLUTION
(BITS)
24
20
18
16
4-WIRE SPI, 16-PIN QSOP,
PROGRAMMABLE GAIN
MAX11210
MAX11206
MAX11209
MAX11213
4-WIRE SPI,
16-PIN QSOP
MAX11200
MAX11207
MAX11211
MAX11203
2-WIRE SERIAL,
10-PIN μMAX
MAX11201 (with buffers)
MAX11202 (without buffers)
MAX11208
MAX11212
MAX11205
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products   1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.