1
FN6321.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
ISL28146, ISL28246
5MHz, Single and Dual Rail-to-Rail
Input-Output (RRIO) Op Amps
The ISL28146 and ISL28246 are low-power single and dual
operational amplifiers optimized for single supply operation
from 2.4V to 5.5V, allowing operation from one lithium cell or
two Ni-Cd batteries. They feature a gain-bandwidth product
of 5MHz and are unity-gain stable with a -3dB bandwidth of
13MHz.
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 0.25V above a 5.0V supply and to within
10mV from ground. The output operation is rail-to-rail.
The parts draw minimal supply current while meeting
excellent DC accuracy, AC performance, noise and output
drive specifications. The ISL28146 features an enable pin
that can be used to turn the device off and reduce the supply
current to only 16A. Operation is guaranteed over -40°C to
+125°C temperature range.
Features
5MHz gain bandwidth product @ AV = 100
13MHz -3db unity gain bandwidth
1mA typical supply current (per amplifier)
650V maximum offset voltage
16nA typical input bias current
Down to 2.4V single supply voltage range
Rail-to-rail input and output
Enable pin (ISL28146 only)
-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
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL28146FHZ-T7*
GABS
6 Ld SOT-23
MDP0038
ISL28146FHZ-T7A*
GABS
6 Ld SOT-23
MDP0038
ISL28246FBZ
28246 FBZ
8 Ld SOIC
MDP0027
ISL28246FBZ-T7*
28246 FBZ
8 Ld SOIC
MDP0027
ISL28246FUZ
8246Z
8 Ld MSOP
MDP0043
ISL28246FUZ-T7*
8246Z
8 Ld MSOP
MDP0043
ISL28146EVAL1Z
Evaluation Board - 6 Ld SOT-23
ISL28246SOICEVAL1Z
Evaluation Board - 8 Ld SOIC
ISL28246MSOPEVAL1Z
Evaluation Board - 8 Ld MSOP
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.
Pinouts
ISL28146
(6 LD SOT-23)
TOP VIEW
ISL28246
(8 LD MSOP)
TOP VIEW
ISL28246
(8 LD SOIC)
TOP VIEW
1
2
3
6
4
5
+-
OUT
V-
IN+
V+
EN
IN-
1
2
3
4
8
7
6
5
OUT_A
IN-_A
IN+_A
V+
OUT_B
IN-_B
V-
IN+_B
+
-
+ -
1
2
3
4
8
7
6
5
OUT_A
IN-_A
IN+_A
V+
OUT_B
IN-_B
V-
IN+_B
+
-
+ -
Data Sheet
June 23, 2008