19-5333; Rev 0; 6/10
24-Bit, Single-Channel, Ultra-Low-Power, Delta
Sigma ADC with 2-Wire Serial Interface
General Description
Features
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.
S 23.3-Bit ENOB
20.6-Bit Noise-Free Resolution at 13.75sps
19.1-Bit Noise-Free Resolution at 120sps
S 700nV Noise 3.6V Input (MAX11201B)
RMS
FS
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
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
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
M
interface in the space-saving, 10-pin FMAX package.
The MAX11201 operates over the -40NC to +85NC tem-
perature range.
S High-Impedance Inputs
Buffers on Signal Inputs
Applications
S Programmable Internal System Clock or External
Clock
Sensor Measurement
(Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
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
Ordering Information
OUTPUT RATE
PART
PIN-PACKAGE
(sps)
MAX11201AEUB+
MAX11201BEUB+
10 FMAX
10 FMAX
120
S
2kV ESD Protection
13.75
S Lead(Pb)-Free and RoHS-Compliant µMAX Package
Note: All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide
RESOLUTION
(BITS)
4-WIRE SPI, 16-PIN QSOP,
PROGRAMMABLE GAIN
4-WIRE SPI,
16-PIN QSOP
2-WIRE SERIAL,
10-PIN µMAX
MAX11201 (with buffers)
MAX11202 (without buffers)
24
MAX11210
MAX11200
20
18
16
MAX11206
MAX11209
MAX11213
MAX11207
MAX11211
MAX11203
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.