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ISL28270, ISL28273, ISL28470
Data Sheet
April 13, 2007
FN6260.2
Micropower, Single Supply, Rail-to-Rail
Input and Output (RRIO) Instrumentation
Amplifier
The ISL28270 and ISL28273 are dual channel micropower
instrumentation amplifiers (in-amps) and the ISL28470 is a
Quad-channel in-amp optimized for low 2.4V to 5V single
supplies.
All three devices feature an Input Range Enhancement
Circuit (IREC) which maintains CMRR performance for input
voltages equal to the positive supply and down to 50mV
above the negative supply rail. The input signal is capable of
swinging above the positive supply rail and to 10mV above
the negative supply with only a slight degradation of the
CMRR performance. The output operation is rail to rail.
The ISL28273 is compensated for a minimum gain of 10 or
more. For higher gain applications, the ISL28270 and
ISL28470 are compensated for a minimum gain of 100. The
in-amps have bipolar input devices for best offset and
excellent 1/f noise performance. The amplifiers can be
operated from one lithium cell or two Ni-Cd batteries.
Features
鈥?60碌A(chǔ) supply current per channel ISL28270
鈥?150碌V max offset voltage
鈥?2nA max input bias current ISL28270
鈥?110dB CMRR, PSRR
鈥?0.7碌V/擄C offset voltage temperature coefficient
鈥?240kHz -3dB bandwidth (G = 100) ISL28270, ISL28470
鈥?230kHz -3dB bandwidth (G = 10) ISL28273
鈥?0.5V/碌s slew rate
鈥?Single supply operation
鈥?Rail-to-rail input and output (RRIO)
鈥?Input is capable of swinging above V+ and below V-
(ground sensing)
鈥?Output sources and sinks 鹵29mA load current
鈥?0.5% gain error
鈥?Pb-free plus anneal available (RoHS compliant)
Ordering Information
PART NUMBER
(Note)
ISL28270IAZ
(Note)
ISL28270IAZ-T13
(Note)
Coming Soon
ISL28273FAZ
(Note)
Coming Soon
ISL28273FAZ-T7
(Note)
ISL28470FAZ
(Note)
ISL28470FAZ-T7
(Note)
PART
MARKING
28270 IAZ
28270 IAZ
28273 FAZ
TAPE &
REEL
PACKAGE
(Pb-Free)
PKG.
DWG. #
Applications
鈥?Battery or solar-powered systems
鈥?Strain gauge
鈥?Sensor signal conditioning
鈥?Medical devices
鈥?Industrial instrumentations
97/Tube 16 Ld QSOP MDP0040
(Pb-free)
13鈥?/div>
16 Ld QSOP MDP0040
(1k pcs) (Pb-free)
97/Tube 16 Ld QSOP MDP0040
(Pb-free)
7鈥?/div>
16 Ld QSOP MDP0040
(1k pcs) (Pb-free)
48/Tube 28 Ld QSOP M28.15
(Pb-free)
7鈥?/div>
28 Ld QSOP M28.15
(1k pcs) (Pb-free)
Related Literature
鈥?AN1290, ISL2827xINEVAL1Z Evaluation Board User鈥檚
Guide
鈥?AN1298, Instrumentation Amplifier Application Note
28273 FAZ
ISL28470FAZ
ISL28470FAZ
ISL28270INEVAL1Z Evaluation Platform
(Note)
ISL28273INEVAL1Z Evaluation Platform
Coming Soon
ISL28470EVAL1Z
Evaluation Platform
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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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