MAX9943 Maxim, MAX9943 Datasheet

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MAX9943

Manufacturer Part Number
MAX9943
Description
The MAX9943/MAX9944 is a family of high-voltage amplifiers that offers precision, low drift, and low power consumption
Manufacturer
Maxim
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
MAX9943AUA
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX9943AUA+
Manufacturer:
Maxim Integrated Products
Quantity:
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Part Number:
MAX9943AUA+
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX9943/MAX9944 is a family of high-voltage
amplifiers that offers precision, low drift, and low-power
consumption.
The MAX9943 (single) and MAX9944 (dual) op amps
offer 2.4MHz of gain-bandwidth product with only
550μA of supply current per amplifier.
The MAX9943/MAX9944 family has a wide power sup-
ply range operating from ±3V to ±19V dual supplies or
a 6V to 38V single supply.
The MAX9943/MAX9944 is ideal for sensor signal condi-
tioning, high-performance industrial instrumentation and
loop-powered systems (e.g., 4mA–20mA transmitters).
The MAX9943 is offered in a space-saving 6-pin TDFN or
8-pin μMAX
8-pin SO or an 8-pin TDFN package. These devices are
specified over the -40°C to +125°C automotive tempera-
ture range.
19-4433; Rev 3; 4/11
μMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations appear at end of data sheet.
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.
Capacitive Load vs. Resistive Load
High-Voltage, Precision, Low-Power Op Amps
Sensor Interfaces
Loop-Powered Systems
Industrial Instrumentation
High-Voltage ATE
High-Performance ADC/DAC Input/Output
Amplifiers
100,000
10,000
1000
100
®
100
package. The MAX9944 is offered in an
________________________________________________________________ Maxim Integrated Products
UNSTABLE
STABLE
1000
General Description
R
LOAD
(Ω)
10,000
Applications
100,000
o Wide 6V to 38V Supply Range
o Low 100µV (max) Input Offset Voltage
o Low 0.4µV/°C Offset Drift
o Unity Gain Stable with 1nF Load Capacitance
o 2.4MHz Gain-Bandwidth Product
o 550µA Supply Current
o 20mA Output Current
o Rail-to-Rail Output
o Package Options
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
MAX9943AUA+
MAX9943ATT+
MAX9944ASA+
MAX9944ATA+
3mm x 5mm, 8-Pin µMAX or 3mm x 3mm, 6-Pin
5mm x 6mm, 8-Pin SO or 3mm x 3mm, 8-Pin
PART
TDFN Packages (Single)
TDFN Packages (Dual)
TOP VIEW
*EP = EXPOSED PAD.
OUT
V
IN+
EE
-40°C to +125°C 8 μMAX
-40°C to +125°C 6 TDFN-EP*
-40°C to +125°C 8 SO
-40°C to +125°C 8 TDFN-EP*
TEMP RANGE
1
2
3
Ordering Information
6 TDFN-EP
TOP VIEW
MAX9943
*EP
Package Detail
PIN-
PACKAGE
6
5
4
V
N.C.
IN-
CC
Features
MARK
AACA
TOP
AUF
BLN
1

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MAX9943 Summary of contents

Page 1

... The MAX9943/MAX9944 is ideal for sensor signal condi- tioning, high-performance industrial instrumentation and loop-powered systems (e.g., 4mA–20mA transmitters). The MAX9943 is offered in a space-saving 6-pin TDFN or ® 8-pin μMAX package. The MAX9944 is offered in an 8-pin 8-pin TDFN package. These devices are specified over the -40° ...

Page 2

... Note 1: Operation is limited by thermal limits. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...

Page 3

High-Voltage, Precision, Low-Power Op Amps ELECTRICAL CHARACTERISTICS (continued 15V -15V 0V otherwise noted.) (Note 3) PARAMETER Open-Loop Gain Output Voltage Swing Short-Circuit Current AC CHARACTERISTICS Gain Bandwidth Product Slew ...

Page 4

High-Voltage, Precision, Low-Power Op Amps (V = 15V -15V 0V OFFSET VOLTAGE HISTOGRAM -60 -50 -40 -30 -20 - ...

Page 5

High-Voltage, Precision, Low-Power Op Amps (V = 15V -15V 0V 10kΩ to GND INPUT BIAS CURRENT vs. COMMON-MODE VOLTAGE 3.0 2.5 2.0 1.5 1.0 0.5 0 -14 -10 -6 ...

Page 6

... MAX9943 toc18 20mV/div OUT 1μs/div INPUT VOLTAGE NOISE vs. FREQUENCY 100 1000 10,000 100,000 FREQUENCY (Hz) CAPACITIVE LOAD vs. RESISTIVE LOAD UNSTABLE STABLE 100 1000 10,000 100,000 R (Ω) LOAD LARGE SIGNAL-STEP RESPONSE MAX9943 toc19 1V/div 10μs/div ...

Page 7

... The output can swing to the negative rail while deliver- ing 20mA of current, which is ideal for loop-powered system applications. The specifications and operation of the MAX9943/MAX9944 family is guaranteed over the -40°C to +125°C temperature range. _______________________________________________________________________________________ NAME ...

Page 8

... Figure 1. Capacitive Load Driving Circuit Figure 2. Input Protection Circuit During normal op-amp operation, the inverting and non- inverting inputs of the MAX9943/MAX9944 are at essen- tially the same voltage. However, either due to fast input voltage transients or due to other fault conditions, these pins can be forced two different voltages. ...

Page 9

High-Voltage, Precision, Low-Power Op Amps +15V DAC Figure 3. Typical ±20mA Current-Source in Loop-Powered Systems _______________________________________________________________________________________ -15V V REF R SENSE MAX9944 -15V R LOAD 9 ...

Page 10

... IN+ TOP VIEW NOT TO SCALE. *EP = EXPOSED PAD. 10 ______________________________________________________________________________________ MAX9943 + 8 N.C. OUTA INA OUT INA N. μMAX MAX9943 + * OUTA 1 INA N.C. INA IN- 6 TDFN Pin Configurations MAX9944 OUTB INB INB ...

Page 11

... High-Voltage, Precision, Low-Power Op Amps For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- tains to the package regardless of RoHS status ...

Page 12

... High-Voltage, Precision, Low-Power Op Amps For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- tains to the package regardless of RoHS status ...

Page 13

... High-Voltage, Precision, Low-Power Op Amps For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- tains to the package regardless of RoHS status ...

Page 14

... High-Voltage, Precision, Low-Power Op Amps For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- tains to the package regardless of RoHS status ...

Page 15

... Updated Pin Description section 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 ____________________ 15 © ...

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