ISL28278 Datasheet, PDF (1/13 Pages) Intersil Corporation – Dual Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Precision Op-Amp

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Data Sheet
ISL28278, ISL28478
September 28, 2006
FN6145.1
Dual Micropower Single Supply
Rail-to-Rail Input and Output (RRIO)
Precision Op-Amp
The ISL28278 and ISL28478 are Dual and Quad channel
micropower precision operational amplifier optimized for
single supply operation at 5V and can operate down to 2.4V.
For equivalent performance in a single channel op-amp
reference EL8178.
The ISL28278 and ISL28478 feature an Input Range
Enhancement Circuit (IREC) which enables both parts to
maintain 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 both parts draw minimal supply current while meeting
excellent DC-accuracy, AC-performance, noise and output
drive specifications.
The ISL28278 and ISL28478 can be operated from one
lithium cell or two Ni-Cd batteries. The input range includes
both positive and negative rail.
Ordering Information
PART TAPE &
PKG.
PART NUMBER MARKING REEL PACKAGE DWG. #
ISL28278FAZ
(See Note)
28278FAZ 97/Tube 16 Ld QSOP MDP0040
(Pb-free)
ISL28278FAZ-T7 28278FAZ
7”
16 Ld QSOP MDP0040
(See Note)
(1000 pcs) (Pb-free)
Coming Soon
ISL28478FAZ
(Note)
28478FAZ 97/Tube 16 Ld QSOP MDP0040
(Pb-free)
Coming Soon 28478FAZ
7”
16 Ld QSOP MDP0040
ISL28478FAZ-T7
(1000 pcs) (Pb-free)
(Note)
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.
Features
• Low Power 120µA typ supply current for both channels
• 225µV max offset voltage
• 30pA typ input bias current
• 300kHz gain-bandwidth product
• 100dB typ PSRR and CMRR
• Single supply operation down to 2.4V
• Input is capable of swinging above V+ and below V-
(ground sensing)
• Rail-to-rail input and output (RRIO)
• Pb-free plus anneal available (RoHS compliant)
Applications
• Battery- or solar-powered systems
• 4mA to 25mA current loops
• Handheld consumer products
• Medical devices
• Thermocouple amplifiers
• Photodiode pre-amps
• pH probe amplifiers
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2006. All Rights Reserved
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