ISL28288_07 Datasheet, PDF (1/13 Pages) Intersil Corporation – Dual and Quad Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Op-Amp

®
Data Sheet
ISL28288, ISL28488
June 28, 2007
FN6339.1
Dual and Quad Micropower Single Supply
Rail-to-Rail Input and Output (RRIO)
Op-Amp
The ISL28288 and ISL28488 are dual and quad channel
micropower operational amplifiers optimized for single
supply operation over the 2.4V to 5V range. They can be
operated from one lithium cell or two Ni-Cd batteries. For
equivalent performance in a single channel op-amp
reference EL8188.
These devices feature an Input Range Enhancement Circuit
(IREC) which enables them to maintain CMRR performance
for input voltages 10% above the positive supply rail and to
100mV below the negative supply. The output operation is
rail to rail.
The ISL28288 and ISL28488 draw minimal supply current
while meeting excellent DC-accuracy, AC-performance,
noise and output drive specifications. The ISL28288
contains a power down enable pin that reduces the power
supply current to typically less than 4µA in the disabled
state.
Pinouts
ISL28288
(10 LD MSOP)
TOP VIEW
IN+_A 1
EN_A 2
V- 3
EN_B 4
IN+_B 5
10 IN-_A
-
+
9 OUT_A
8 V+
+
-
7 OUT_B
6 IN-_B
ISL28488
(16 LD QSOP)
TOP VIEW
OUT_A 1
IN-_A 2
IN+_A 3
V+ 4
IN+_B 5
IN-_B 6
OUT_B 7
NC 8
16 OUT_D
15 IN-_D
14 IN+_D
13 V-
12 IN+_C
11 IN-_C
10 OUT_C
9 NC
Features
• Low power 120µA typical supply current
• 1.5mV max offset voltage
• 30pA max input bias current
• 300kHz typical gain-bandwidth product
• 105dB typical PSRR
• 100dB typical 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)
• Enable Pin (ISL28288 only)
• 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
Ordering Information
PART NUMBER
(Note)
PART
MARKING
PACKAGE PKG. DWG.
(Pb-Free)
#
ISL28288FUZ
8288Z
10 Ld MSOP MDP0043
ISL28288FUZ-T7 8288Z
10 Ld MSOP MDP0043
ISL28488FAZ
28488 FAZ 16 Ld QSOP MDP0040
ISL28488FAZ-T7 28488 FAZ 16 Ld QSOP MDP0040
*“-T7” suffix is for tape and reel. Please refer to TB347 for details on
reel specifications.
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.
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