MAX11205AEUB+T Maxim Integrated, MAX11205AEUB+T Datasheet

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MAX11205AEUB+T

Manufacturer Part Number
MAX11205AEUB+T
Description
Analog to Digital Converters - ADC 16-Bit Delta-Sigma
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX11205AEUB+T

Rohs
yes
Number Of Channels
1
Architecture
Sigma-Delta
Conversion Rate
120 SPs
Resolution
16 bit
Input Type
Single-Ended
Interface Type
SPI
Operating Supply Voltage
1.7 V to 3.6 V, 2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Power Dissipation
444 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
3.6 V
19-5238; Rev 0; 4/10
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
age. The MAX11205 operates over the -40NC to +85NC
temperature range.
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.maxim-ic.com.
Delta-Sigma ADC with 2-Wire Serial Interface
RESOLUTION
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
(BITS)
24
20
18
16
16-Bit, Single-Channel, Ultra-Low Power,
_______________________________________________________________ Maxim Integrated Products 1
General Description
4-WIRE SPI, 16-PIN QSOP,
PROGRAMMABLE GAIN
MAX11210
MAX11206
MAX11209
MAX11213
Applications
M
pack-
16-PIN QSOP
4-WIRE SPI,
MAX11200
MAX11207
MAX11211
MAX11203
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.
S 16-Bit Full-Scale Resolution
S 720nV
S 3ppm INL
S No Missing Codes
S Ultra-Low-Power Dissipation
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
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
MAX11205AEUB+*
MAX11205BEUB+
Package
Operating-Mode Current Drain < 300µA (max)
Sleep-Mode Current Drain < 0.1µA
2.4576MHz (MAX11205A)
2.2528MHz (MAX11205B)
PART
RMS
Noise (MAX11205B)
PIN-PACKAGE
10 FMAX
10 FMAX
Ordering Information
MAX11202 (without buffers)
MAX11201 (with buffers)
2-WIRE SERIAL,
10-PIN µMAX
MAX11208
MAX11212
MAX11205
Selector Guide
OUTPUT RATE
Features
13.75
(sps)
120

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MAX11205AEUB+T Summary of contents

Page 1

... MAX11210 20 MAX11206 18 MAX11209 16 MAX11213 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. S 16-Bit Full-Scale Resolution S 720nV RMS S 3ppm INL S No Missing Codes S Ultra-Low-Power Dissipation Operating-Mode Current Drain < ...

Page 2

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface ABSOLUTE MAXIMUM RATINGS Any Pin to GND ....................................................-0.3V to +3.9V AVDD to GND .......................................................-0.3V to +3.9V DVDD to GND ......................................................-0.3V to +3.9V Analog Inputs (AINP, AINN, REFP, REFN) to GND ...

Page 3

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface ELECTRICAL CHARACTERISTICS (continued +3.6V +1.8V, V AVDD DVDD REFP are +25NC under normal conditions, unless otherwise noted.) A PARAMETER SYMBOL REF Dynamic Input ...

Page 4

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface ELECTRICAL CHARACTERISTICS (continued +3.6V +1.8V, V AVDD DVDD REFP are +25NC under normal conditions, unless otherwise noted.) A PARAMETER SYMBOL SCLK Rising Edge ...

Page 5

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface (V = 3.6V 1.8V AVDD DVDD REFP are +25NC.) A ANALOG ACTIVE CURRENT vs. AVDD VOLTAGE (MAX11205A) 240 V = 1.8V DVDD ...

Page 6

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface (V = 3.6V 1.8V AVDD DVDD REFP are +25NC.) A INTERNAL OSCILLATOR FREQUENCY vs. AVDD VOLTAGE 2 1.8V DVDD 2.5 ...

Page 7

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface (V = 3.6V 1.8V AVDD DVDD REFP are +25NC.) A NORMAL-MODE FREQUENCY RESPONSE (MAX11205B) 0 -20 -40 -60 -80 -100 -120 -140 ...

Page 8

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface PIN NAME 1 GND Ground. Ground reference for analog and digital circuitry. Differential Reference Positive Input. REFP must be more positive than REFN. Connect REFP REFP voltage ...

Page 9

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface Detailed Description The MAX11205 is an ultra-low power (< 240FA active), high-resolution, low-speed, serial-output ADC. This device provides the highest resolution per unit power in the industry, and is optimized ...

Page 10

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface Data Read Following Every Conversion The MAX11205 indicates conversion data availability, as well as allows the retrieval of data through the RDY/DOUT output. The RDY/DOUT output idles at the value ...

Page 11

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface SCLK RDY/DOUT D15 D14 CONVERSION IS DONE DATA IS AVAILABLE Figure 1. Timing Diagram for Data Read After Conversion SCLK 1 2 ...

Page 12

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface 1 2 SCLK RDY/DOUT D14 D15 CONVERSION IS DONE DATA IS AVAILABLE Figure 4. Timing Diagram for Data Read Followed by Sleep Mode Activation; Single-Conversion Timing ...

Page 13

Single-Channel, Ultra-Low Power, Delta-Sigma ADC with 2-Wire Serial Interface Applications Information See Figure 6 for the RTD temperature measurement circuit and Figure 7 for a resistive bridge measurement circuit. I REF2 REFP R REF I REF1 REFN I = ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 14 2010 Maxim Integrated Products © ...

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