ISL28156_08 Datasheet, PDF (1/13 Pages) Intersil Corporation – 39μA Micropower Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Low Input Bias Current Op Amps

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Data Sheet
ISL28156, ISL28256
February 11, 2008
FN6154.4
39µA Micropower Single and Dual
Precision Rail-to-Rail Input-Output (RRIO)
Low Input Bias Current Op Amps
The ISL28156 and ISL28256 are micropower precision
operational amplifiers optimized for single supply operation
at 5V and can operated down to 2.4V.
These devices 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 0.5V above a 5.0V supply (0.25
for a 2.5V supply) and to within 10mV from ground. The
output operation is rail-to-rail.
The 1/f corner of the voltage noise spectrum is at 1kHz. This
results in low frequency noise performance, which can only
be found on devices with an order of magnitude higher than
the supply current.
ISL28156 and ISL28256 can be operated from one lithium
cell or two Ni-Cd batteries. The input range includes both
positive and negative rail. The output swings to both rails.
Ordering Information
PART NUMBER
(Note)
ISL28156FHZ-T7*
ISL28156FBZ
ISL28156FBZ-T7*
PART
MARKING
PACKAGE
(Pb-free)
GABV
6 Ld SOT-23
28156 FBZ 8 Ld SOIC
28156 FBZ 8 Ld SOIC
PKG.
DWG. #
MDP0038
MDP0027
MDP0027
Coming Soon
ISL28256FBZ
28256 FBZ 8 Ld SOIC
MDP0027
Coming Soon
28256 FBZ 8 Ld SOIC
ISL28256FBZ-T7*
MDP0027
Coming Soon
ISL28256FUZ
8256Z
8 Ld MSOP MDP0043
Coming Soon
8256Z
ISL28256FUZ-T7*
8 Ld MSOP MDP0043
*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.
Features
• 39µA typical supply current
• 5nA max input bias current
• 250kHz gain bandwidth product (A_V = 1)
• 2.4V to 5.5V single supply voltage range
• Rail-to-rail input and output
• Enable pin (ISL28156 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
ISL28156
(6 LD SOT-23)
TOP VIEW
OUT 1
6 V+
ISL28156
(8 LD SOIC)
TOP VIEW
NC 1
8 ENABLE
V- 2
+-
IN+ 3
5 ENABLE IN- 2
-
4 IN-
IN+ 3
+
7 V+
6 OUT
V- 4
5 NC
ISL28256
(8 LD SOIC)
TOP VIEW
OUT_A 1
8 V+
ISL28256
(8 LD MSOP)
TOP VIEW
OUT_A 1
8 V+
IN-_A 2
IN+_A 3
-+
+-
7 OUT_B IN-_A 2
6 IN-_B IN+_A 3
-+
+-
7 OUT_B
6 IN-_B
V- 4
5 IN+_B
V- 4
5 IN+_B
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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