DATASHEET
ISL28148, ISL28248
4.5MHz, Single and Dual Precision Rail-to-Rail Input-Output Op Amps with Very
Low Input Bias Current
FN6337
Rev 5.00
January 22, 2016
The ISL28148, ISL28248 are 4.5MHz low-power single and
Features
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.
• 4.5MHz gain bandwidth product
• 900µA supply current (per amplifier)
• 1.8mV maximum offset voltage (ISL28248)
• 1pA typical input bias current
The single and dual 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.
• Down to 2.4V single supply operation
• Rail-to-rail input and output
• Enable pin (ISL28148 SOT-23 package only)
• -40°C to +125°C operation
The parts draw minimal supply current (900µA per amplifier)
while meeting excellent DC accuracy, AC performance, noise
and output drive specifications. The ISL28148 features an
enable pin that can be used to turn the device off and reduce
the supply current to a maximum of 16µA. Operation is
guaranteed across the -40°C to +125°C temperature range.
• 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
TAPE AND REEL QUANTITY
PACKAGE
PKG.
(Notes 2, 3)
ISL28148FHZ-T7 (Notes 1, 4)
ISL28148FHZ-T7A (Notes 1, 4)
ISL28248FBZ
PART MARKING
GABT
(UNITS)
(RoHS Compliant)
DWG. #
3k
6 Ld SOT-23
P6.064A
GABT
250
6 Ld SOT-23
8 Ld SOIC
P6.064A
M8.15E
28248 FBZ
28248 FBZ
8248Z
ISL28248FBZ-T7 (Note 1)
ISL28248FUZ
1k
8 Ld SOIC
M8.15E
8 Ld MSOP
8 Ld MSOP
M8.118A
M8.118A
ISL28248FUZ-T7 (Note 1)
ISL28148EVAL1Z
8248Z
1.5k
Evaluation Board
Evaluation Board
Evaluation Board
ISL28248MSOPEVAL1Z
ISL28248SOICEVAL1Z
NOTES:
1. Please refer to TB347 for details on reel specifications.
2. 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.
3. For Moisture Sensitivity Level (MSL), please see product information page for ISL28148, ISL28248. For more information on MSL, please see tech
brief TB363.
4. The part marking is located on the bottom of the part.
FN6337 Rev 5.00
January 22, 2016
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