ISL28271FAZ Intersil, ISL28271FAZ Datasheet

IC INSTR AMP RRIO SGL 16-QSOP

ISL28271FAZ

Manufacturer Part Number
ISL28271FAZ
Description
IC INSTR AMP RRIO SGL 16-QSOP
Manufacturer
Intersil
Datasheet

Specifications of ISL28271FAZ

Amplifier Type
Instrumentation
Number Of Circuits
2
Output Type
Rail-to-Rail
Slew Rate
0.5 V/µs
-3db Bandwidth
180kHz
Current - Input Bias
10pA
Voltage - Input Offset
35µV
Current - Supply
120µA
Current - Output / Channel
31mA
Voltage - Supply, Single/dual (±)
2.4 V ~ 5.5 V, ±1.2 V ~ 2.75 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain Bandwidth Product
-
Dual Micropower, Single Supply, Rail-to-
Rail Input and Output (RRIO)
Instrumentation Amplifier
The ISL28271 and ISL28272 are dual micropower
instrumentation amplifiers (in-amps) optimized for single
supply operation over the +2.4V to +5.5V range.
Both devices feature an Input Range Enhancement Circuit
(IREC) which maintains CMRR performance for input
voltages equal to the positive and negative supply rails. The
input signal is capable of swinging 10% above the positive
supply rail and to 100mV below the negative supply with only
a slight degradation of the CMRR performance. The output
operation is rail-to-rail.
The ISL28271 is compensated for a minimum gain of 10 or
more. For higher gain applications, the ISL28272 is
compensated for a minimum gain of 100. The in-amps have
CMOS input devices for maximum input common voltage
range. The amplifiers can be operated from one lithium cell
or two Ni-Cd batteries.
Ordering Information
ISL28271FAZ*
ISL28271INEVAL1Z
ISL28272INEVAL1Z
*Add “-T7” suffix for tape and reel. Please refer to TB347 for details
on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets; molding compounds/die attach
materials and 100% matte tin plate PLUS ANNEAL - e3 termination
finish, which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020.
ISL28272FAZ*
PART NUMBER
(Note)
28271 FAZ
28272 FAZ
Evaluation Platform
Evaluation Platform
MARKING
PART
®
1
16 Ld QSOP MDP0040
16 Ld QSOP MDP0040
PACKAGE
(Pb-free)
Data Sheet
PKG. DWG. #
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• 120µA typical supply current for both channels
• 30pA max input bias current
• 100dB CMRR, PSRR
• 0.7µV/°C offset voltage temperature coefficient
• 180kHz 3dB Bandwidth - ISL28271
• 100kHz 3dB Bandwidth - ISL28272
• 0.5V/µs slew rate
• Single supply operation
• Rail-to-rail input and output (RRIO)
• Input is capable of swinging above V+ and below V-
• 0.081%1 typical gain error - ISL28271
• -0.19%1 typical gain error - ISL28272
• Pb-free available (RoHS compliant)
Applications
• Battery- or solar-powered systems
• Strain gauge
• Sensor signal conditioning
• Medical devices
• Industrial instrumentations
Related Literature
• AN1290, ISL2827xINEVAL1Z Evaluation Board User’s
• AN1298, Instrumentation Amplifier Application Note
Pinout
(ground sensing)
Guide
August 17, 2007
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
OUT_A
Copyright © Intersil Americas Inc. 2006, 2007. All Rights Reserved.
FB+_A
FB-_A
IN+_A
EN_A
IN-_A
NC
V-
1
2
3
4
5
6
7
8
ISL28271, ISL28272
ISL28271, ISL28272
(16 LD QSOP)
+
TOP VIEW
-
- +
16
15
14
13
12
11
10
9
V+
OUT_B
FB+_B
FB-_B
IN-_B
IN+_B
EN_B
NC
FN6390.2

Related parts for ISL28271FAZ

ISL28271FAZ Summary of contents

Page 1

... CMOS input devices for maximum input common voltage range. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries. Ordering Information PART NUMBER PART PACKAGE (Note) MARKING (Pb-free) ISL28271FAZ* 28271 FAZ 16 Ld QSOP MDP0040 ISL28272FAZ* 28272 FAZ 16 Ld QSOP MDP0040 ISL28271INEVAL1Z Evaluation Platform ISL28272INEVAL1Z Evaluation Platform *Add “ ...

Page 2

... ISL28271, ISL28272 Thermal Information = +25°C) Thermal Resistance 16 Ld QSOP Package . . . . . . . . . . . . . . . . . . . . . . . Output Short-Circuit Duration . . . . . . . . . . . . . . . . . . . . . . .Indefinite Ambient Operating Temperature Range . . . . . . . . .-40°C to +125°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . +125°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = GND 1/ Open, T ...

Page 3

Electrical Specifications V = +5V over the operating temperature range, -40°C to +125°C. (Continued) PARAMETER DESCRIPTION V Maximum Voltage Swing OUT SR Slew Rate -3db BW -3dB Bandwidth I Supply Current, Enabled S,EN I Supply Current, Disabled S,DIS ...

Page 4

Typical Performance Curves 70 GAIN = 1000 60 GAIN = 500 GAIN = 200 50 GAIN = 100 40 GAIN = 50 30 GAIN = 20 GAIN = 100 1k FREQUENCY (Hz) FIGURE 1. ISL28271 ...

Page 5

Typical Performance Curves 10kΩ 10pF 1kΩ 100Ω 100 1k 10k FREQUENCY ...

Page 6

Typical Performance Curves 120 100 80 60 PSRR 100 1k 10k FREQUENCY (Hz) FIGURE 13. ISL28271 PSRR vs FREQUENCY 1400 1200 1000 800 600 400 200 0 1 ...

Page 7

Typical Performance Curves TIME (1s/DIV) FIGURE 19. ISL28271 0.1Hz TO 10Hz INPUT VOLTAGE NOISE, GAIN = 3000 190 MAX 170 150 MEDIAN 130 110 -40 - TEMPERATURE (°C) FIGURE 21. ...

Page 8

Typical Performance Curves 160 n = 3000 150 140 130 120 MEDIAN 110 100 -40 - TEMPERATURE (°C) FIGURE 25. ISL28271 CMRR vs TEMPERATURE -2.5V 150 140 MAX 130 120 110 ...

Page 9

Typical Performance Curves 4.9980 n = 3000 4.9975 MEDIAN 4.9970 4.9965 4.9960 MIN 4.9955 4.9950 -40 - TEMPERATURE (°C) FIGURE 31. ISL28271 V HIGH vs TEMPERATURE, OUT R = 100k ±2. ...

Page 10

Pin Descriptions ISL28271 ISL28272 16 Ld QSOP 16 Ld QSOP PIN NAME OUT_A, OUT_B FB+_A, FB+ FB-_A, FB- IN-_A, IN- ...

Page 11

Application Information Product Description The ISL28271 and ISL28272 are dual channel micropower instrumentation amplifiers (in-amps) which deliver rail-to-rail input amplification and rail-to-rail output swing. The in-amps also deliver excellent DC and AC specifications while consuming only about 120µA for both ...

Page 12

TO 5.5V IN+ V+ IN+ + IN- - IN- ISL28271 FB+ + FB- 2. VCM ISL28271 R1 ISL28272 REF FIGURE 38. GAIN SETTING AND REFERENCE CONNECTION . VIN IN+ IN- = – ...

Page 13

Unused Channels The ISL28271 and ISL28272 are Dual channel op amps. If the application only requires one channel when using the ISL28271 or ISL28272, the user must configure the unused channel to prevent it from oscillating. The unused channel will ...

Page 14

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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