ISL28474 Intersil Corporation, ISL28474 Datasheet

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ISL28474

Manufacturer Part Number
ISL28474
Description
(ISL28274 / ISL28474) Rail-to-Rail Input-Output Instrumentation Amplifier and Precision Operational Amplifier
Manufacturer
Intersil Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL28474FAZ
Manufacturer:
Intersil
Quantity:
1 858
Part Number:
ISL28474FAZ
Manufacturer:
INTERSIL
Quantity:
20 000
Micropower, Single Supply, Rail-to-Rail
Input-Output Instrumentation Amplifier
and Precision Operational Amplifier
The ISL28274 is a combination of a micropower
instrumentation amplifier (Amp A) with a low power precision
amplifier (Amp B) in a single package. The ISL28474 consist
of two micropower instrumentation amplifiers (Amp A) and
two low power precision amplifiers (Amp B) in a single
package. The amplifiers are optimized for operation at 2.4V
to 5V single supplies. Inputs and outputs can operate rail-to-
rail. As with all instrumentation amplifiers, a pair of inputs
provide a high common-mode rejection and are completely
independent from a pair of feedback terminals. The
feedback terminals allow zero input to be translated to any
output offset, including ground. A feedback divider controls
the overall gain of the amplifier. The additional precision
amplifier can be used to generate higher gain, with smaller
feedback resistors or used to generate a reference voltage.
The instrumentation amp (Amp A) is compensated for a gain
of 100 or more and the precision amp (Amp B) is unity gain
stable. Both amplifiers have PMOS inputs that provide less
than 30pA input bias currents.
The amplifiers can be operated from one lithium cell or two
Ni-Cd batteries. The amplifiers input range goes from below
ground to slightly above positive rail. The output stage
swings completely to ground or positive supply - no pull-up
or pull-down resistors are needed.
Ordering Information
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100% matte
tin plate termination finish, which are 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.
ISL28274FAZ
ISL28274FAZ-T7 28274FAZ
Coming Soon
ISL28474FAZ
Coming Soon
ISL28474FAZ-T7
PART NUMBER
(Note)
28274FAZ
ISL28474FAZ
ISL28474FAZ
MARKING
PART
®
TUBE/REEL
1
(1000 pcs)
(1000 pcs)
QTY. PER
55 /Tube
97/Tube
7”
7”
Data Sheet
16 Ld QSOP MDP0040
16 Ld QSOP
Tape & Reel
24 Ld QSOP MDP0040
24 Ld QSOP
Tape & Reel
PACKAGE
(Pb-Free)
1-888-INTERSIL or 1-888-468-3774
MDP0040
MDP0040
DWG. #
PKG.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Combination of IN-AMP and OP-AMP in a single package
• 120µA supply current for ISL28274
• Input Offset Voltage IN-AMP 400µV max
• Input Offset Voltage OP-AMP 225µV max
• 30pA max input bias current
• 100dB CMRR and PSRR
• Single supply operation of 2.4V to 5.0V
• Ground Sensing
• Input voltage range is rail-to-rail and output swings
• Pb-free plus anneal available (RoHS compliant)
Applications
• 4-20mA loops
• Industrial Process Control
• Medical Instrumentations
December 13, 2006
rail-to-rail
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2006. All Rights Reserved.
ISL28274, ISL28474
FN6345.0

Related parts for ISL28474

ISL28474 Summary of contents

Page 1

... Precision Operational Amplifier The ISL28274 is a combination of a micropower instrumentation amplifier (Amp A) with a low power precision amplifier (Amp single package. The ISL28474 consist of two micropower instrumentation amplifiers (Amp A) and two low power precision amplifiers (Amp single package. The amplifiers are optimized for operation at 2. single supplies ...

Page 2

... TOP VIEW OUT Instrumentation Amplifier = Instrumentation Amplifier Precision Amplifier ISL28274, ISL28474 V+ 16 OUT IN- IN ISL28474 (16 LD QSOP) TOP VIEW IA OUT_1 IA OUT_2 FB+_1 IA FB+ ...

Page 3

... Input Offset Drift vs Temperature OS --------------- - ΔT I Input Offset Current OS 3 ISL28274, ISL28474 Thermal Information = +25°C) Thermal Resistance 16 Ld QSOP Package . . . . . . . . . . . . . . . . . . . . . . . 24 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 ...

Page 4

... L Output low 1kΩ L Output high 100kΩ L Output high 1kΩ L ISL28274 All channels enabled ISL28474 All channels enabled ISL28274 All channels enabled ISL28474 All channels enabled R = 10Ω 10Ω +25°C, unless otherwise ...

Page 5

... 10kΩ 100Ω 100 1k 10k FREQUENCY (Hz) FIGURE 5. AMPLIFIER “A”(INAMP) FREQUENCY RESPONSE vs C LOAD 5 ISL28274, ISL28474 10k 100k 1M FIGURE 2. AMPLIFIER “A”(INAMP) FREQUENCY RESPONSE +10mV M 10k 100k 1M FIGURE 4. AMPLIFIER “A”(INAMP) FREQUENCY ...

Page 6

... L R =0/R = INF - 10k 100k FREQUENCY (Hz) FIGURE 11. AMPLIFIER “B” (OP-AMP) FREQUENCY RESPONSE vs SUPPLY VOLTAGE 6 ISL28274, ISL28474 (Continued) PSRR+ 100k 1M FIGURE 8. AMPLIFIER “A”(INAMP) INPUT VOLTAGE NOISE 1k 10k 100k FIGURE 10. AMPLIFIER “A”(INAMP) 0 10Hz INPUT ±1.2V S ...

Page 7

... L - -30 PSRR - -40 -50 -60 -70 -80 -90 -100 10 100 1k 10k TEMPERATURE (°C) FIGURE 17. AMPLIFIER “B” (OP-AMP) PSRR vs FREQUENCY 7 ISL28274, ISL28474 (Continued) -20 - -60 -80 -100 4 5 FIGURE 14. AMPLIFIER “B” (OP-AMP) INPUT OFFSET 80 100 40 0 -40 -80 -20 -120 100k ...

Page 8

... FREQUENCY (Hz) FIGURE 21. AMPLIFIER “B” (OP-AMP) CURRENT NOISE vs FREQUENCY 5.4µV P-P TIME (1s/DIV) FIGURE 23. AMPLIFIER “B” (OP-AMP) 0.1Hz TO 10Hz INPUT VOLTAGE NOISE 8 ISL28274, ISL28474 (Continued) 5.0 4.0 3.0 2.0 1 FIGURE 20. AMPLIFIER “B” (OP-AMP) LARGE SIGNAL 100 10k 100k FIGURE 22. AMPLIFIER “B” (OP-AMP) VOLTAGE NOISE vs ...

Page 9

... MEDIAN -5.0 -5.5 -6.0 MIN -6.5 -40 - TEMPERATURE (°C) FIGURE 29. DISABLED NEGATIVE SUPPLY CURRENT vs TEMPERATURE V = ±2.5V ISL28274, ISL28474 (Continued) 0 4.5 5 5.5 0 FIGURE 26. AMPLIFIER “B” (OP-AMP) ENABLE TO OUTPUT MIN 80 100 120 FIGURE 28. DISABLED POSITIVE SUPPLY CURRENT vs = INF MAX -100 -150 -200 -250 -300 ...

Page 10

... TEMPERATURE -50 -100 -150 -200 -250 -300 -40 - TEMPERATURE (°C) FIGURE 35. I BIAS (IA IN-) vs TEMPERATURE V 10 ISL28274, ISL28474 (Continued 100 -25 -75 -125 -175 MEDIAN -225 MAX -275 80 100 120 = ±2.5V. S FIGURE 32. I BIAS (IA FB+) vs TEMPERATURE V 50 ...

Page 11

... FIGURE 39. I BIAS(IN-) vs TEMPERATURE V 40 -10 -60 -110 -160 -210 -260 -310 -40 - TEMPERATURE (°C) FIGURE 41. I BIAS(IN-) vs TEMPERATURE V 11 ISL28274, ISL28474 (Continued 100 -50 MIN -100 MEDIAN -150 MAX -200 -250 80 100 120 FIGURE 38. I BIAS(IN+) vs TEMPERATURE V = ±1. ...

Page 12

... MEDIAN -200 -400 -600 MAX -800 -40 - TEMPERATURE (°C) FIGURE 47. IA INPUT OFFSET VOLTAGE vs TEMPERATURE V = ±1. ISL28274, ISL28474 (Continued) 100 n = 100 -50 -100 MEDIAN -150 MIN -200 80 100 120 FIGURE 44. INPUT OFFSET CURRENT vs TEMPERATURE 800 n = 100 MAX 600 400 ...

Page 13

... MEDIAN 105 95 MAX 85 75 -40 - TEMPERATURE (°C) FIGURE 53. PSRR vs TEMPERATURE V 13 ISL28274, ISL28474 (Continued) 145 135 125 115 105 100 120 FIGURE 50. IA CMRR vs TEMPERATURE VCM = +2.5V TO 155 n = 100 145 135 125 115 ...

Page 14

... MAX 4.9970 4.9968 4.9966 -40 - TEMPERATURE (°C) FIGURE 59. V HIGH vs TEMPERATURE R OUT V = ±2. ISL28274, ISL28474 (Continued) 170 n = 100 160 150 140 130 120 110 100 90 80 100 120 -40 = 100k. FIGURE 56. IA VOUT LOW vs TEMPERATURE R L 4.910 4 ...

Page 15

... IA IN+_1 EN_1 IN+ 1 12, 13 OUT 1 Instrumentation Amplifier V+ IN- IN+ V- CIRCUIT 1 15 ISL28274, ISL28474 (Continued) 4 100 4.2 MIN 4.0 3.8 3.6 3.4 MAX 3.2 3.0 -40 - TEMPERATURE (°C) T LOW vs TEMPERATURE R OU EQUIVALENT CIRCUIT NC No internal connection Circuit 3 Instrumentation Amplifier output ...

Page 16

... An EN pin is used to reduce power consumption, typically 4µA for the ISL28274 and 8µA for the ISL28474, while both amplifiers are disabled. The user has independent control of each amplifier via separate EN pins. ...

Page 17

... FIGURE 66. GUARD RING EXAMPLE FOR UNITY GAIN Current Limiting The ISL28274 has no internal current-limiting circuitry. If the output is shorted possible to exceed the Absolute Maximum Rating for output current or power dissipation, potentially resulting in the destruction of the device CHANNELS V+ HIGH IMPEDANCE INPUT 1/2 ISL28274 1/4 ISL28474 IN AMPLIFIER FN6345.0 December 13, 2006 ...

Page 18

... Maximum power dissipation of 1 amplifier MAX • Supply voltage S • Maximum supply current of 1 amplifier MAX • Maximum output voltage swing of the OUTMAX application • Load resistance L 18 ISL28274, ISL28474 ) for all applications (EQ MAX V OUTMAX ) × --------------------------- - R L (EQ. 2) FN6345.0 December 13, 2006 ...

Page 19

... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 19 ISL28274, ISL28474 MDP0040 QUARTER SIZE OUTLINE PLASTIC PACKAGES FAMILY (N/2)+1 ...

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