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

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

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

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

Single, Dual, and Quad Micropower, Low Drift, RRIO

Operational Amplifiers

ISL28130, ISL28230, ISL28430

The ISL28130, ISL28230 and ISL28430 are single, dual and

quad micropower, low offset drift operational amplifiers that are

optimized for single and dual supply operation from 1.65V to

5.5V and ±0.825V to ±2.75V. Their low supply current of 20µA

and rail-to-rail input range enable the ISL28130, ISL28230,

ISL28430 to be an excellent general purpose op amp for a range

of applications. The ISL28130, ISL28230 and ISL28430 are

ideal for handheld devices that operate off 2 AA or single Li-ion

batteries.

The ISL28130 is available in industry standard pinouts for 5 Ld

SOT-23, 5 Ld SC70 and 8 Ld SOIC packages. The ISL28230 is

available in industry standard pinouts for 8 Ld MSOP, 8Ld SOIC

and 8 Ld DFN packages. The ISL28430 is available in 14 Ld

TSSOP and 14 Ld SOIC packages. All devices operate over the

temperature range of -40°C to +125°C.

Features

• Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . 40µV, Max.

• Low Offset Drift . . . . . . . . . . . . . . . . . . . . . . . . 150nV/°C, Max

• Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . 250 pA, Max.

• Quiescent Current (Per Amplifier) . . . . . . . . . . . . . .20µA, Typ.

• Single Supply Range . . . . . . . . . . . . . . . . . . . +1.65V to +5.5V

• Dual Supply Range. . . . . . . . . . . . . . . . . . . ±0.825V to ±2.75V

• Rail-to-Rail Inputs and Output

Applications

• Bi-Directional Current Sense

• Temperature Measurement

•Medical Equipment

• Electronic Weigh Scales

• Precision/Strain Gauge Sensor

• Precision Regulation

•Low Ohmic Current Sense

• High Gain Analog Front Ends

BI-DIRECTIONAL CURRENT SENSE AMPLIFIER

I-SENSE+

0.1

4.99k

4.99k

499k

499k

+

-

V+

V-

GND

VSENSE

OUT

VREF

V+

+1.65V TO +5.5V

I-SENSE-

FIGURE 1. TYPICAL APPLICATION DIAGRAM

TEMPERATURE (°C)

0

100

200

300

400

-50

-25

0

25

50

75

100

125

-100

VS = ±2.5V

VS = ±0.825V

FIGURE 2. IB vs TEMPERATURE

December 16, 2010

FN7623.1