MAX11201 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – 24-Bit, Single-Channel, Ultra-Low-Power, Delta Sigma ADC with 2-Wire Serial Interface

19-5333; Rev 0; 6/10
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24-Bit, Single-Channel, Ultra-Low-Power, Delta
Sigma ADC with 2-Wire Serial Interface
General Description
The MAX11201 is an ultra-low-power (< 320FA 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 MAX11201
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 100dB rejection of 50Hz or 60Hz
line noise. The MAX11201 provides a simple 2-wire serial
interface in the space-saving, 10-pin FMAX^M package.
The MAX11201 operates over the -40NC to +85NC tem-
perature range.
Applications
Sensor Measurement
(Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
Ordering Information
PART
PIN-PACKAGE
MAX11201AEUB+ 10 FMAX
MAX11201BEUB+ 10 FMAX
OUTPUT RATE
(sps)
120
13.75
Note: All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Features
S 23.3-Bit ENOB
20.6-Bit Noise-Free Resolution at 13.75sps
19.1-Bit Noise-Free Resolution at 120sps
S 700nVRMS Noise ±3.6VFS Input (MAX11201B)
S INL: 3ppm (typ), 10ppm (max)
S No Missing Codes
S Ultra-Low Power Dissipation
Operating Mode Current Drain < 320µA (max)
Sleep Mode Current Drain < 0.4µA
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
Buffers on Signal Inputs
S Programmable Internal System Clock or External
Clock
2.4576MHz (MAX11201A)
2.25275MHz (MAX11201B)
S > 100dB (min) 50Hz/60Hz Rejection (MAX11201B)
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
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
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.