1

®

FN6321.2

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 16µA. Operation is guaranteed over -40°C to

+125°C temperature range.

Features

• 13MHz -3db unity gain bandwidth

• 950µA typical supply current (per amplifier)

• 650µV maximum offset voltage (6 Ld SOT-23)

• 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

Coming Soon

ISL28246FBZ

28246 FBZ

8 Ld SOIC

MDP0027

Coming Soon

ISL28246FBZ-T7*

28246 FBZ

8 Ld SOIC

MDP0027

Coming Soon

ISL28246FUZ

8246Z

8 Ld MSOP

MDP0043

Coming Soon

ISL28246FUZ-T7*

8246Z

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.

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

February 11, 2008