1

®

FN6301.1

ISL28276, ISL28476

Dual and Quad Precision Micropower

Single Supply Rail-to-Rail Input and

Output Precision Op Amps

The ISL28276 and ISL28476 are Dual and Quad 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 EL8176.

The ISL28276 and ISL28476 feature an Input Range

Enhancement Circuit (IREC) which enables both parts to

maintain CMRR performance for input voltages equal to the

positive and negative supply rails. The input signal is

capable of swinging 0.5V above a 5.0V supply (0.25V for a

2.4V supply) and to within 10mV from ground. The output

operation is rail to rail.

The both parts draw minimal supply current while meeting

excellent DC-accuracy, AC-performance, noise and output

drive specifications. Offset current, voltage and current

noise, slew rate, and gain-bandwidth product are all two to

ten times better than other micropower op-amps with

equivalent supply current ratings.

The ISL28276 and ISL28476 can be operated from one

lithium cell or two Ni-Cd batteries. The input range includes

both positive and negative rail.

Features

• 60µA supply current per channel

• 100µV max offset voltage

• 500pA input bias current

• 400kHz gain-bandwidth product

• 115dB PSRR and CMRR

• Single supply operation down to 2.4V

• Input is capable of swinging above V+ and within 10mV of

Ground

• Rail-to-rail output

• Output sources 31mA load current

• 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

Ordering Information

PART NUMBER

(Note)

PART

MARKING

TAPE &

REEL

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL28276IAZ

28276 IAZ

97/Tube 16 Ld QSOP MDP0040

ISL28276IAZ-T7

28276 IAZ

7”

(1k pcs)

16 Ld QSOP MDP0040

Coming Soon

ISL28476FAZ

28476 FAZ 97/Tube 16 Ld QSOP MDP0040

Coming Soon

ISL28476FAZ-T7

28476 FAZ

7”

(1k pcs)

16 Ld QSOP MDP0040

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.

Data Sheet

April 20, 2007

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2006, 2007. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.