MAX11212AEUB+ Maxim Integrated Products, MAX11212AEUB+ Datasheet

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MAX11212AEUB+

Manufacturer Part Number
MAX11212AEUB+
Description
IC ADC 18BIT SRL 120SPS 10UMAX
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX11212AEUB+

Number Of Bits
18
Sampling Rate (per Second)
120
Data Interface
Serial
Number Of Converters
1
Power Dissipation (max)
444mW
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Conversion Rate
120 SPs
Resolution
18 bit
Interface Type
SPI
Voltage Reference
3.6 V
Supply Voltage (max)
3.6 V
Supply Voltage (min)
1.7 V
Maximum Power Dissipation
444 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Input Voltage
1.7 V to 3.6 V
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5247; Rev 0; 4/10
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.
The MAX11212 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
MAX11212 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 MAX11212 provides a simple 2-wire
serial interface in the space-saving, 10-pin FMAX
age. The MAX11212 operates over the -40NC to +85NC
temperature range.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
18-Bit, Single-Channel, Ultra-Low Power, Delta-
RESOLUTION
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
(BITS)
24
20
18
16
_______________________________________________________________ Maxim Integrated Products 1
Sigma ADC with 2-Wire Serial Interface
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
S 18-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
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
Note: All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Future product—contact factory for availability.
MAX11212AEUB+*
MAX11212BEUB+
Output)
Package
2.4576MHz (MAX11212A)
2.2528MHz (MAX11212B)
Operating-Mode Current Drain < 300µA (max)
Sleep-Mode Current Drain < 0.1µA
PART
RMS
Noise (MAX11212B)
Ordering Information
10 FMAX
10 FMAX
PIN-PACKAGE
MAX11202 (without buffers)
MAX11201 (with buffers)
2-WIRE SERIAL,
10-PIN µMAX
Selector Guide
MAX11208
MAX11212
MAX11205
OUTPUT RATE
Features
13.75
(sps)
120

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MAX11212AEUB+ Summary of contents

Page 1

... 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 MAX11212AEUB+* 10 FMAX MAX11212BEUB+ 10 FMAX Note: All devices are specified over the -40°C to +85°C oper- ating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. ...

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 ...

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 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 ...

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 (MAX11212A) 240 V = 1.8V ...

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 ...

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 (MAX11212B) 0 -20 -40 -60 -80 -100 -120 ...

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 to a voltage 2 ...

Page 9

Single-Channel, Ultra-Low Power, Delta- Sigma ADC with 2-Wire Serial Interface Detailed Description The MAX11212 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 indus- try, and is ...

Page 10

Single-Channel, Ultra-Low Power, Delta- Sigma ADC with 2-Wire Serial Interface Data Read Following Every Conversion The MAX11212 indicates conversion data availabil- ity as well as allows the retrieval of data through the RDY/DOUT output. The RDY/DOUT output idles at ...

Page 11

Single-Channel, Ultra-Low Power, Delta- Sigma ADC with 2-Wire Serial Interface SCLK 1 2 RDY/DOUT D17 D16 CONVERSION IS DONE DATA IS AVAILABLE Figure 3. Timing Diagram for Data Read Followed by Two Extra Clock Cycles for Self-Calibration 1 2 ...

Page 12

Single-Channel, Ultra-Low Power, Delta- Sigma ADC with 2-Wire Serial Interface Self-Calibration at Wake-Up The MAX11212 can be put in self-calibration mode immediately after wake-up from sleep mode. Self- calibration at wake-up helps to compensate for tempera- ture or supply ...

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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