MAX11200EEE+ Maxim Integrated Products, MAX11200EEE+ Datasheet

ADC (A/D Converters) 24 BIT SIGMA DELTA ADC

MAX11200EEE+

Manufacturer Part Number
MAX11200EEE+
Description
ADC (A/D Converters) 24 BIT SIGMA DELTA ADC
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX11200EEE+

Number Of Converters
1
Resolution
24 bit
Interface Type
SPI
Voltage Reference
3.6 V
Supply Voltage (max)
3.6 V
Supply Voltage (min)
1.7 V
Maximum Power Dissipation
667 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
QSOP-16
Input Voltage
1.7 V to 3.6 V
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5332; Rev 0; 6/10
The MAX11200/MAX11210 are ultra-low-power (< 300FA
active current), high-resolution, serial output ADCs.
These devices provide the highest resolution per unit
power in the industry, and are optimized for applications
that require very high dynamic range with low power,
such as sensors on a 4mA to 20mA industrial control
loop. Optional input buffers provide isolation of the sig-
nal inputs from the switched capacitor sampling network
allowing these converters to be used with high-imped-
ance sources without compromising available dynamic
range or linearity. The devices provide 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 devices are configurable using
the SPI™ interface and include four GPIOs that can be
used for external mux control. The MAX11210 includes
digital programmable gain of 1, 2, 4, 8, or 16.
The MAX11200/MAX11210 operate over the -40NC to
+85NC temperature range, and are available in a 16-pin
QSOP package.
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.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Sensor Measurement (Temperature and
Pressure)
Portable Instrumentation
Battery Applications
Weigh Scales
RESOLUTION
(BITS)
24
20
18
16
_______________________________________________________________ Maxim Integrated Products 1
24-Bit, Single-Channel, Ultra-Low-Power,
General Description
4-WIRE SPI, 16-PIN QSOP,
PROGRAMMABLE GAIN
MAX11210
MAX11206
MAX11209
MAX11213
Applications
Delta-Sigma ADCs with GPIO
16-PIN QSOP
4-WIRE SPI,
S 24.0-Bit ENOB at 5sps
S 570nV
S 1ppm INL (typ), 10ppm (max)
S No Missing Codes
S Ultra-Low Power Dissipation
S Programmable Gain (1, 2, 4, 8, or 16) (MAX11210)
S Four SPI-Controlled GPIOs for External Mux
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
S Programmable Internal Clock or External Clock
S > 100dB (min) 50Hz/60Hz Rejection
S SPI, QSPI™, MICROWIRE™-Compatible Serial
S On-Demand Offset and Gain Self-Calibration and
S User-Programmable Offset and Gain Registers
S -40°C to +85°C Operating Temperature Range
S Q2kV ESD Protection
S Lead(Pb)-Free and RoHS-Compliant QSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
MAX11200
MAX11207
MAX11211
MAX11203
MAX11200EEE+
MAX11210EEE+
Control
Mode
Interface
System Calibration
Package
20.9-Bit Noise-Free Resolution at 10sps
19-Bit Noise-Free Resolution at 120sps
Operating-Mode Current Drain < 300µA (max)
Sleep-Mode Current Drain < 0.4µA
Optional Input Buffers on Both Signal and
Reference Inputs
PART
RMS
Noise at 10sps, Q3.6V
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
MAX11202 (without buffers)
MAX11201 (with buffers)
2-WIRE SERIAL,
10-PIN µMAX
Selector Guide
MAX11208
MAX11212
MAX11205
FS
16 QSOP
16 QSOP
PIN-PACKAGE
Input
Features

Related parts for MAX11200EEE+

MAX11200EEE+ Summary of contents

Page 1

... S On-Demand Offset and Gain Self-Calibration and System Calibration S User-Programmable Offset and Gain Registers S -40°C to +85°C Operating Temperature Range S Q2kV ESD Protection S Lead(Pb)-Free and RoHS-Compliant QSOP Package PART MAX11200EEE+ MAX11210EEE+ +Denotes a lead(Pb)-free/RoHS-compliant package. 4-WIRE SPI, 16-PIN QSOP MAX11200 MAX11207 MAX11211 ...

Page 2

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO 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 ............................................. -0.3V to ...

Page 3

Single-Channel, Ultra-Low-Power, ELECTRICAL CHARACTERISTICS (continued +3.6V +1.7V, V AVDD DVDD REFP unless otherwise noted. Typical values are at T PARAMETER SYMBOL Absolute Input Voltage DC Input Leakage AIN Dynamic Input Current REF Dynamic Input Current ...

Page 4

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO ELECTRICAL CHARACTERISTICS (continued +3.6V +1.7V, V AVDD DVDD REFP unless otherwise noted. Typical values are at T PARAMETER SYMBOL POWER REQUIREMENTS Analog Supply V Digital Supply V Total Operating ...

Page 5

Single-Channel, Ultra-Low-Power +3.6V +1.8V, V AVDD DVDD REFP are +25NC.) A ANALOG ACTIVE CURRENT vs. AVDD VOLTAGE (NO BUFFERS ENABLED) 260 LINEF = 0, LINEF = 1 240 220 T = +85°C ...

Page 6

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO (V = +3.6V +1.8V, V AVDD DVDD REFP are +25NC.) A INTERNAL OSCILLATOR FREQUENCY vs. TEMPERATURE 3 3.0V 2.9 AVDD 2.8 2.7 2.6 LINEF = 0 ...

Page 7

Single-Channel, Ultra-Low-Power, AVDD DVDD GND AINP AINN 3RD-ORDER DELTA-SIGMA MODULATOR REFP REFN *PROGRAMMABLE GAIN ONLY AVAILABLE ON THE MAX11210. _______________________________________________________________________________________ Delta-Sigma ADCs with GPIO TIMING PROGRAMMABLE DIGITAL FILTER GAIN* 4 (SINC ) (1–16) MAX11200 MAX11210 Functional Diagram CLOCK GENERATOR ...

Page 8

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO PIN NAME 1 GPIO1 General-Purpose I/O 1. Register controllable using SPI. 2 GPIO2 General-Purpose I/O 2. Register controllable using SPI. 3 GPIO3 General-Purpose I/O 3. Register controllable using SPI. 4 GND Ground. Ground ...

Page 9

Single-Channel, Ultra-Low-Power, Detailed Description The MAX11200/MAX11210 are ultra-low-power (< 300FA active), high-resolution, low-speed, serial-output ADCs. These ADCs provide the highest resolution per unit power in the industry, and are optimized for applications that require very high dynamic range with ...

Page 10

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO provides maximum 50Hz rejection. See Figures 1 and 2. For optimal simultaneous 50Hz and 60Hz rejection, apply a 2.25275MHz external clock at CLK. The devices provide differential inputs REFP and REFN for an ...

Page 11

Single-Channel, Ultra-Low-Power, Table 3a. Example of Self-Calibration STEP DESCRIPTION 1 Initial power-up 2 Enable self-calibration registers 3 Self-calibration, DIN = 10010000 Table 3b. Example of System Calibration STEP DESCRIPTION 1 Initial power-up 2 Enable self-calibration registers 3 Self-calibration, DIN ...

Page 12

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO NORMAL MODE REJECTION DATA RATE 10.0SPS 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 FREQUENCY (Hz) Figure 1. Normal-Mode Frequency ...

Page 13

Single-Channel, Ultra-Low-Power, MAX313 LOGIC SWITCH 0 OFF 1 ON IN1 IN2 AIN1 IN3 AIN2 IN4 AIN3 AIN4 MAX313 COM1 COM2 COM3 COM4 Figure 3. MAX11200 GPIOs Drive an External 4-Channel Switch (MAX313) Table 4c. Data Command to Select Channel ...

Page 14

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO Serial-Digital Interface The MAX11200/MAX11210 interface is fully compatible with SPI-, QSPI-, and MICROWIRE-standard serial inter- faces. The SPI interface provides access to nine on-chip registers that are bits wide. Drive ...

Page 15

Single-Channel, Ultra-Low-Power, Communication between the user and the device is con- ducted through SPI using a command byte. The com- mand byte consists of two modes differentiated as com- mand modes and data modes. Command modes and data modes ...

Page 16

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO Table 7. Operating Mode (MODE Bit) MODE BIT SETTING 0 The command byte initiates a conversion or an immediate power-down. See Tables 5 and 8. 1 The device interprets the command byte as ...

Page 17

Single-Channel, Ultra-Low-Power, Table 10. Register Address Map ADDRESS REGISTER SELECT B7 R/W NAME (RS[3:0]) STAT1 R 0x0 SYSOR CTRL1 0x1 LINEF R/W CTRL2 0x2 DIR4 R/W CTRL3 0x3 DGAIN2* R/W DATA R 0x4 SOC 0x5 R/W SGC 0x6 R/W ...

Page 18

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO Table 11. STAT1 Register (Read Only) BIT B7 SYSOR BIT NAME DEFAULT 0 SYSOR: The system gain overrange bit when set to 1 indicates that a system gain calibration was over range. The ...

Page 19

Single-Channel, Ultra-Low-Power, The byte-wide CTRL1 register is a bidirectional read/write register. The byte written to the CTRL1 register indicates if the part converts continuously or single cycle external or internal clock is used, if the reference and ...

Page 20

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO The byte-wide CTRL2 register is a bidirectional read/write register. The byte written to the CTRL2 register controls the direction and values of the digital I/O ports. Table 13. CTRL2 Register (Read/Write) BIT B7 ...

Page 21

Single-Channel, Ultra-Low-Power, The data register is a 24-bit read-only register. Any attempt to write data to the data register has no effect. The data read from this register is clocked out MSB first. The data register holds the conversion ...

Page 22

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO Table 16b. Output Data Formats for the Bipolar Input Range INPUT VOLTAGE AINP AINN ≥ V REF   × 1 −   REF 23  2 ...

Page 23

Single-Channel, Ultra-Low-Power, The system gain calibration register is a 24-bit read/write register. The data written/read to/from this register is clocked in/out MSB first. This register holds the system gain calibration value. The format is always in two’s complement binary ...

Page 24

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO The self-calibration gain register is a 24-bit read/write register. The data written/read to/from this register is clocked in/ out MSB first. This register holds the self-calibration gain value. The format is always in ...

Page 25

Single-Channel, Ultra-Low-Power REF1 REF2 I REF2 REFP R REF MAX11200 I REF1 MAX11210 REFN AINP R RTD AINN GND Figure 8. RTD Temperature Measurement Circuit AVDD REFP REFN AINP AINN Figure 9. Resistive Bridge ...

Page 26

Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO LOAD ROBERVAL WEIGHING PAN FULCRUM FLEXURES FORCE COIL TENSION FLEXURE Figure 10. Typical Magnetic Force Restoration Scale For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, ...

Page 27

... 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 2010 Maxim Integrated Products © ...

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