MAX11202_12 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – 24-Bit, Single-Channel, Ultra-Low-Power, Delta Sigma ADC with 2-Wire Serial Interface

MAX11202
24-Bit, Single-Channel, Ultra-Low-Power, Delta
Sigma ADC with 2-Wire Serial Interface
General Description
The MAX11202 is an ultra-low-power (< 300FA max
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 sensors
on a 4mA to 20mA industrial control loop. The MAX11202
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 MAX11202 provides a simple 2-wire serial
interface in the space-saving, 10-pin FMAX^M package.
The MAX11202 operates over the -40NC to +85NC tem-
perature range.
Applications
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
Features
S 24-Bit Full-Scale Resolution
20.5-Bit Noise-Free Resolution at 13.75sps
19-Bit Noise-Free Resolution at 120sps
S 720nVRMS Noise (MAX11202B)
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 (MAX11202A)
2.2528MHz (MAX11202B)
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
RESOLUTION
(BITS)
24
20
18
16
4-WIRE SPI, 16-PIN QSOP,
PROGRAMMABLE GAIN
MAX11210
MAX11206
MAX11209
MAX11213
Ordering Information
PART
PIN-PACKAGE
OUTPUT RATE
(sps)
MAX11202AEUB+ 10 FMAX
120
MAX11202BEUB+ 10 FMAX
13.75
Note: All devices are specified over the -40NC to +85NC oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide
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
µMAX is a registered trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5237; Rev 0; 4/10