ISL28288 Datasheet, PDF (1/12 Pages) Intersil Corporation – Dual Micropower Single Supply Rail-to-Rail Input and Output (RRIO) Precision Op-Amp

®
Data Sheet
September 20, 2006
ISL28288
FN6339.0
Dual Micropower Single Supply
Rail-to-Rail Input and Output (RRIO)
Precision Op-Amp
The ISL28288 is a dual 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 EL8188.
The ISL28288 features an Input Range Enhancement Circuit
(IREC) which enables the ISL28288 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 ISL28288 draws minimal supply current while meeting
excellent DC-accuracy, AC-performance, noise and output
drive specifications.
The ISL28288 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. #
ISL28288FUZ
(See Note)
28288Z
50/Tube 10 Ld MSOP MDP0043
(Pb-free)
ISL28288FUZ-T7 28288Z
(See Note)
7” 10 Ld MSOP MDP0043
(1500 pcs) (Pb-free)
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
• 1.5mV 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
Pinout
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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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