ISL28268 Intersil Corporation, ISL28268 Datasheet

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ISL28268

Manufacturer Part Number
ISL28268
Description
(ISL28168 / ISL28268) Micro-power Single and Dual Rail-to-Rail Input-Output (RRIO) Low Input Bias Current Op Amps
Manufacturer
Intersil Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL28268FBZ
Manufacturer:
INTERSIL
Quantity:
20 000
www.datasheet4u.com
34µA Micro-power Single and Dual Rail-to-
Rail Input-Output (RRIO) Low Input Bias
Current Op Amps
The ISL28168 and ISL28268 are micro-power operational
amplifiers optimized for single supply operation over a power
supply range of 2.4VDC to 5.5VDC. These devices draw
minimal supply current and operate rail-to-rail at the input
and output, while providing excellent DC-accuracy, noise
and output drive specifications. Competing devices seriously
degrade these parameters to achieve micro-power supply
current.
The parts feature an Input Range Enhancement Circuit
(IREC) which enables them to maintain CMRR performance
for input voltages greater than the positive supply. The input
signal is capable of swinging 0.25V above the positive
supply and to 100mV below the negative supply with only a
slight degradation of the CMRR performance. The output
operation is rail-to-rail.
The 1/f corner of the voltage noise spectrum is at 100Hz.
This results in low frequency noise performance which can
only be found on devices with an order of magnitude higher
supply current.
ISL28168 and ISL28268 can be operated from one lithium
cell or two Ni-Cd batteries. The ISL28168 contains an enable
pin feature that allows the device to be shutdown when not in
use.
Ordering Information
ISL28168FHZ-T7*
ISL28168FHZ-T7A*
Coming Soon
ISL28268FBZ-T7*
Coming Soon
ISL28268FUZ-T7*
* “-T7” and “-T7A” suffix are 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.
PART NUMBER
(Note)
GACA
GACA
MARKING
PART
®
1
6 Ld SOT-23
6 Ld SOT-23
8 Ld SOIC
8 Ld MSOP
Data Sheet
PACKAGE
(Pb-free)
MDP0038
MDP0038
MDP0027
MDP0043
DWG. #
PKG.
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
OUT_A
IN+_A
Features
• 34µA typical supply current
• 10pA typical input bias current
• 200kHz gain bandwidth product
• 2.4V to 5.5V single supply voltage range
• Rail-to-rail input and output
• Enable pin (ISL28168 only)
• Pb-free (RoHS compliant)
Applications
• Battery- or solar-powered systems
• 4mA to 20mA current loops
• Handheld consumer products
• Medical devices
• Sensor amplifiers
• ADC buffers
• DAC output amplifiers
Pinouts
IN-_A
September 13, 2007
V-
1
2
3
4
(8 LD SOIC)
All other trademarks mentioned are the property of their respective owners.
TOP VIEW
ISL28268
-
|
+
Intersil (and design) is a registered trademark of Intersil Americas Inc.
+ -
OUT
Copyright © Intersil Americas Inc. 2007. All Rights Reserved.
IN+
V-
ISL28168, ISL28268
8
7
6
5
1
2
3
(6 LD SOT-23)
V+
OUT_B
IN-_B
IN+_B
TOP VIEW
ISL28168
+ -
OUT_A
IN+_A
IN-_A
V-
6
5
4
1
2
3
4
(8 LD MSOP)
V+
EN
IN-
TOP VIEW
ISL28268
-
+
FN6378.2
+ -
8
7
6
5
V+
OUT_B
IN-_B
IN+_B

Related parts for ISL28268

ISL28268 Summary of contents

Page 1

... This results in low frequency noise performance which can only be found on devices with an order of magnitude higher supply current. ISL28168 and ISL28268 can be operated from one lithium cell or two Ni-Cd batteries. The ISL28168 contains an enable pin feature that allows the device to be shutdown when not in use ...

Page 2

... I Quiescent Supply Current, Disabled S,OFF (ISL28168 Short-Circuit Output Source Current O 2 ISL28168, ISL28268 Thermal Information (T = +25°C) A Thermal Resistance 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 ...

Page 3

... Enable to Output Turn-on Delay Time (ISL28168) OUT Enable to Output Turn-off Delay Time (ISL28168) OUT NOTE: 1. Parts are 100% tested at +25°C. Over temperature limits established by characterization and are not production tested. 3 ISL28168, ISL28268 = 5V 0V,V = 2.5V Open CONDITIONS R = 10Ω ...

Page 4

... FIGURE 3. GAIN vs FREQUENCY 16.3pF 10mV OUT P 10k FREQUENCY (Hz) FIGURE 5. GAIN vs FREQUENCY ISL28168, ISL28268 0V,V = 2.5V 499 10k 4.99k f g 10k 100k 1M 100k 10k OUT ...

Page 5

... FREQUENCY (Hz) FIGURE 9. CMRR vs FREQUENCY -10 PSRR- -20 -30 -40 -50 -60 -70 -80 -90 -100 10 100 1k FREQUENCY (Hz) FIGURE 11. PSRR vs FREQUENCY ISL28168, ISL28268 0V,V = 2.5V 2.4V + 100k 2.4V 10k 16.3pF P-P 10k 100k ...

Page 6

... 10k 16.3pF OUT 10k 100 150 200 TIME (µs) FIGURE 17. ISL28168 ENABLE TO OUTPUT RESPONSE 6 ISL28168, ISL28268 0V,V = 2.5V 10k 16.3pF 10k 100k = 10k f P-P 250 300 350 400 1.2 1 ...

Page 7

... TEMPERATURE (°C) FIGURE 21. SUPPLY CURRENT DISABLED vs TEMPERATURE 1.5 MAX 1.0 0.5 0 MEDIAN -0.5 -1.0 MIN -1.5 -40 - TEMPERATURE (°C) FIGURE 23. V (SOT PKG) vs TEMPERATURE ±2. ISL28168, ISL28268 0V,V = 2.5V 100 100 120 , V = ±2. 1000 60 80 100 120 = 0V Open (Continued ...

Page 8

... TEMPERATURE (°C) FIGURE 27 TEMPERATURE, V BIAS 20 0 -20 -40 -60 -80 -100 -120 -140 -160 -40 - TEMPERATURE (°C) FIGURE 29 TEMPERATURE ISL28168, ISL28268 0V,V = 2.5V Open (Continued MAX MEDIAN MIN 60 80 100 120 , V = ±2. MAX MEDIAN MIN 60 80 100 ...

Page 9

... VOL to +2V 100k L 4. 1000 4.91 4.90 4.89 4.88 4.87 MEDIAN 4.86 MIN 4.85 4.84 -40 - TEMPERATURE (°C) FIGURE 35. V HIGH vs TEMPERATURE, V OUT ISL28168, ISL28268 0V,V = 2.5V Open (Continued 1000 60 80 100 120 = -2.5V TO +2.5V, FIGURE 32. PSRR vs TEMPERATURE 1000 60 80 100 120 V = ±2.5V -2V FIGURE 34 ...

Page 10

... 1000 MAX MIN 20 -40 - TEMPERATURE (°C) FIGURE 39 SHORT CIRCUIT OUTPUT CURRENT vs O TEMPERATURE ±2. ISL28168, ISL28268 0V,V = 2.5V MEDIAN 60 80 100 120 V = ±2.5V MEDIAN 60 80 100 120 = -2.55V 10k Open (Continued) 7 1000 7 ...

Page 11

... Introduction The ISL28168 is a single CMOS rail-to-rail input, output (RRIO) operational amplifier with an enable feature. The ISL28268 is a dual version without the enable feature. Both devices are designed to operate from single supply (2.4V to 5.5V) or dual supplies (±1.2V to ±2.75V). Rail-to-Rail Input/Output Many rail-to-rail input stages use two differential input pairs, a long-tail PNP (or PFET) and an NPN (or NFET) ...

Page 12

... Large (>2V) differential input voltages can also cause an increase in disabled I Using Only One Channel The ISL28268 is a dual op amp. If the application only requires one channel, the user must configure the unused channel to prevent it from oscillating. The unused channel will oscillate if the input and output pins are floating. This will result in higher than expected supply currents and possible noise injection into the channel being used ...

Page 13

... Absolute Maximum Rating for output current or power dissipation, potentially resulting in the destruction of the device. 13 ISL28168, ISL28268 Power Dissipation It is possible to exceed the +125°C maximum junction temperatures under certain load and power-supply conditions therefore important to calculate the ...

Page 14

... B NX 0. SEATING PLANE 0. (L1 ISL28168, ISL28268 MDP0038 D SOT-23 PACKAGE FAMILY NOTES: 1. Plastic or metal protrusions of 0.25mm maximum per side are not A2 2. Plastic interlead protrusions of 0.25mm maximum per side are not A1 3. This dimension is measured at Datum Plane “ ...

Page 15

... Plastic or metal protrusions of 0.006” maximum per side are not included. 2. Plastic interlead protrusions of 0.010” maximum per side are not included. 3. Dimensions “D” and “E1” are measured at Datum Plane “H”. 4. Dimensioning and tolerancing per ASME Y14.5M-1994 15 ISL28168, ISL28268 D (N/2)+1 (N/2) e ...

Page 16

... 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 16 ISL28168, ISL28268 MDP0043 A MINI SO PACKAGE FAMILY ...

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