www.ti.com

FEATURES

1OUT

OPAMP1

OPAMP2

+

+

-

-

1

2

3

4

8

7

6

5

D (SOIC) PACKAGE

(TOP VIEW)

DRJ (QFN) PACKAGE

(TOP VIEW)

2IN+

1OUT

2

3

4

1

8

7

6

5

1IN−

1IN+

2IN−

2OUT

NOTE: Exposed thermal pad is connected

1IN+

1IN–

2IN+

2IN–

2OUT

TYPICAL APPLICATIONS

DESCRIPTION/ORDERING INFORMATION

TL103W, TL103WA

DUAL OPERATIONAL AMPLIFIERS

WITH INTERNAL REFERENCE

SLOS437J – APRIL 2004 – REVISED JULY 2005

•

OPERATIONAL AMPLIFIER

– Low Offset Voltage Max of:

• TL103WA…3 mV (25°C) and 5 mV

(Full Temperature)

• TL103W…4 mV (25°C) and 5 mV

(Full Temperature)

– Low Supply Current

…350 µA/Channel (Typ)

– Unity Gain Bandwidth

…0.9 MHz (Typ)

– Input Common-Mode Range Includes GND

– Large Output-Voltage Swing

…

– Wide Supply-Voltage Range

…3 V to 32 V

– 2-kV ESD Protection (HBM)

•

VOLTAGE REFERENCE

– Fixed 2.5-V Reference

– Tight Tolerance Max of:

• TL103WA…0.4% (25°C) and 0.8%

(Full Temperature)

• TL103W . . . 0.7% (25°C) and 1.4%

(Full Temperature)

– Low Temperature Drift

…7 mV (Typ) Over

Operating Temperature Range

– Wide Sink-Current Range . . .

0.5 mA (Typ) to 100 mA

– Output Impedance

…0.2 Ω (Typ)

•

Battery Chargers

•

Switch-Mode Power Supplies

•

Linear Voltage Regulation

•

Data-Acquisition Systems

The TL103W and TL103WA combine the building blocks of a dual operational amplifier and a fixed voltage

reference – both of which often are used in the control circuitry of both switch-mode and linear power supplies.

OPAMP1 has its noninverting input internally tied to a fixed 2.5-V reference, while OPAMP2 is independent, with

both inputs uncommitted.

For the A grade, especially tight voltage regulation can be achieved through low offset voltages for both

operational amplifiers (typically 0.5 mV) and tight tolerances for the voltage reference (0.4% at 25

°C and 0.8%

over operating temperature range).

The TL103W and TL103WA are characterized for operation from –40

°C to 105°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2005, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.