ISL28138 Datasheet, PDF (1/16 Pages) Intersil Corporation – 4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current

®
Data Sheet
ISL28138, ISL28238
February 19, 2008
FN6336.2
4.5MHz, Single and Dual Precision
Rail-to-Rail Input-Output (RRIO) Op Amps
with Very Low Input Bias Current
The ISL28138 and ISL28238 are 4.5MHz low-power single
and dual operational amplifiers. The parts are optimized for
single supply operation from 2.4V to 5.5V, allowing operation
from one lithium cell or two Ni-Cd batteries.
The parts 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 0.25V above the positive
supply and to 100mV below the negative supply with only a
slight degradation of the CMRR performance. The output
operation is rail-to-rail.
The parts draw minimal supply current (900µA per amplifier)
while meeting excellent DC accuracy, AC performance,
noise and output drive specifications. The ISL28138 features
an enable pin that can be used to turn the device off and
reduce the supply current to less than 20µA. Operation is
guaranteed over -40°C to +125°C temperature range.
Ordering Information
PART NUMBER
PART
PACKAGE
(Note)
MARKING (Pb-free)
ISL28138FHZ-T7* GABR
6 Ld SOT-23
ISL28138FHZ-T7A* GABR
6 Ld SOT-23
ISL28138FBZ
28138 FBZ 8 Ld SOIC
PKG. DWG. #
MDP0038
MDP0038
MDP0027
ISL28138FBZ-T7* 28138 FBZ 8 Ld SOIC
MDP0027
Coming Soon
ISL28238FBZ
28238 FBZ 8 Ld SOIC
MDP0027
Coming Soon
28238 FBZ 8 Ld SOIC
ISL28238FBZ-T7*
MDP0027
Coming Soon
ISL28238FUZ
8238Z
8 Ld MSOP MDP0043
Coming Soon
8238Z
ISL28238FUZ-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
• 4.5MHz gain bandwidth product
• 900µA supply current (per amplifier)
• 300µV maximum offset voltage
• 1pA typical input bias current
• Down to 2.4V single supply voltage range
• Rail-to-rail input and output
• Output sources and sinks 60mA load current
• Enable pin (ISL28138)
• -40°C to +125°C operation
• Pb-free (RoHS compliant)
Applications
• Low-end audio
• 4mA to 20mA current loops
• Medical devices
• Sensor amplifiers
• ADC buffers
• DAC output amplifiers
Pinouts
ISL28138
(6 LD SOT-23)
TOP VIEW
OUT 1
6 V+
V- 2
5 EN
+-
IN+ 3
4 IN-
ISL28138
(8 LD SO)
TOP VIEW
NC 1
8 EN
IN- 2
-
IN+ 3
+
7 V+
6 OUT
V- 4
5 NC
ISL28238
(8 LD SO)
TOP VIEW
OUT_A 1
8 V+
ISL28238
(8 LD MSOP)
TOP VIEW
OUT_A 1
8 V+
IN-_A 2
IN+_A 3
V- 4
-+
+-
7 OUT_B IN-_A 2
6 IN-_B IN+_A 3
5 IN+_B
V- 4
-+
+-
7 OUT_B
6 IN-_B
5 IN+_B
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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