MAX11208 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – 20-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADC with 2-Wire Serial Interface

19-5246; Rev 0; 4/10
20-Bit, Single-Channel, Ultra-Low-Power,
Delta-Sigma ADC with 2-Wire Serial Interface
General Description
The MAX11208 is an ultra-low-power (< 300FA 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 sen-
sors on a 4mA to 20mA industrial control loop. The
MAX11208 provides a high-accuracy internal oscillator
that requires no external components.
When used with the specified data rates, the internal
digital filter provides more than 80dB rejection of 50Hz or
60Hz line noise. The MAX11208 provides a simple 2-wire
serial interface in the space-saving, 10-pin FMAX^M pack-
age. The MAX11208 operates over the -40NC to +85NC
temperature range.
Applications
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
Features
S 20-Bit Full-Scale Resolution
20-Bit Noise-Free Resolution at 13.75sps_
19-Bit Noise-Free Resolution at 120sps
S 720nVRMS Noise (MAX11208B)
S 3ppm INL
S No Missing Codes
S Ultra-Low Power Dissipation
Operating Mode Current Drain < 300µA (max)_
Sleep Mode Current Drain < 0.1µA
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 Inputs
S Fully Differential Reference Inputs
S Internal System Clock
2.4576MHz (MAX11208A)_
2.2528MHz (MAX11208B)
S External Clock
S Serial 2-Wire Interface (Clock Input and Data
Output)
S On-Demand Offset and Gain Self-Calibration
S -40°C to +85°C Operating Temperature Range
S ±2kV ESD Protection
S Lead(Pb)-Free and RoHS-Compliant µMAX
Package
Ordering Information
PART
PIN-PACKAGE
OUTPUT RATE
(sps)
MAX11208AEUB+ 10 FMAX
MAX11208BEUB+ 10 FMAX
120
13.75
Note: All devices are specified over the -40NC to +85NC oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
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
Selector Guide
2-WIRE SERIAL,
10-PIN μMAX
MAX11201 (with buffers)
MAX11202 (without buffers)
MAX11208
MAX11212
MAX11205
µMAX is a registered trademark of Maxim Integrated Products, Inc.
________________________________________________________________ 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.