MAX11205 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – 16-Bit, Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface

19-5238; Rev 0; 4/10
16-Bit, Single-Channel, Ultra-Low Power,
Delta-Sigma ADC with 2-Wire Serial Interface
General Description
The MAX11205 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
MAX11205 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 MAX11205 provides a simple 2-wire
serial interface in the space-saving, 10-pin FMAX^M pack-
age. The MAX11205 operates over the -40NC to +85NC
temperature range.
Applications
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
Features
S 16-Bit Full-Scale Resolution
S 720nVRMS Noise (MAX11205B)
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 (MAX11205A)
2.2528MHz (MAX11205B)
S External Clock
S Serial 2-Wire Interface (Clock Input and Data Input)
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)
MAX11205AEUB+* 10 FMAX
MAX11205BEUB+ 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.
*Future product—contact factory for availability.
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.