TEXAS INSTRUMENTS TL103W, TL103WA Technical data

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FEATURES

V

CC+

1OUT

V

REF

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+

V

CC−

2IN−

2OUT

V

CC+

NOTE: Exposed thermal pad is connected
internally to V

CC−

via die attach.

V

CC−

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 µ A/Channel (Typ)
– Unity Gain Bandwidth … 0.9 MHz (Typ)
– Input Common-Mode Range Includes GND
– Large Output-Voltage Swing …

0 V to V

CC

– 1.5 V

– 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.

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Typical Application Circuit

SMPS

_
+

OPAMP2

_
+

OPAMP1

TL103W/A

Current

Sense

AC

Line

Opto

Isolator

Battery

R6

R3 R4 R5

R8

R2

R1

R7

R9

Constant Voltage Control

Constant Current Control

2.5 V

TL103W, TL103WA
DUAL OPERATIONAL AMPLIFIERS
WITH INTERNAL REFERENCE

SLOS437J – APRIL 2004 – REVISED JULY 2005

ORDERING INFORMATION

MAX VIOAND V

REF

T

A

TOLERANCE PACKAGE

(1)

ORDERABLE PART NUMBER TOP-SIDE MARKING

(25 ° C)

QFN (DRJ) Reel of 1000 TL103WAIDRJR PREVIEW

A grade

Tube of 75 TL103WAID

3 mV, 0.4%

SOIC (D) Z103WQ

Reel of 2500 TL103WAIDR

–40 ° C to 105 ° C

QFN (DRJ) Reel of 1000 TL103WIDRJR PREVIEW

Standard grade

Tube of 75 TL103WID

4 mV, 0.7%

SOIC (D) Z103W

Reel of 2500 TL103WIDR

(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

Figure 1. TL103W/A in a Constant-Current and Constant-Voltage Battery Charger

2

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Absolute Maximum Ratings

(1)

Recommended Operating Conditions

TL103W, TL103WA

DUAL OPERATIONAL AMPLIFIERS

WITH INTERNAL REFERENCE

SLOS437J – APRIL 2004 – REVISED JULY 2005

over operating free-air temperature range (unless otherwise noted)

MIN MAX UNIT

V

CC

Supply voltage 36 V

V

id

Operational amplifier input differential voltage 36 V

V

I

Operational amplifier input voltage range –0.3 36 V

I

KA

Voltage reference cathode current 100 mA

D package

(2) (3)

97

θ

JA

Package thermal impedance ° C/W

DRJ package

(2) (4)

TBD

T

J

Maximum junction temperature 150 ° C

T

stg

Storage temperature range –65 150 ° C

(1) Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating
conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability

(2) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient

temperature is PD= (TJ(max) – TA)/ θJA. Selecting the maximum of 150 ° C can affect reliability.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
(4) The package thermal impedance is calculated in accordance with JESD 51-5.

over operating free-air temperature range (unless otherwise noted)

MIN MAX UNIT

V

IN

Supply voltage 3 32 V

I

K

Cathode current 1 100 mA

T

A

Operating free-air temperature –40 105 ° C

3

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OPAMP1, Operational Amplifier With Noninverting Input Connected to the Internal V

REF

TL103W, TL103WA
DUAL OPERATIONAL AMPLIFIERS
WITH INTERNAL REFERENCE

SLOS437J – APRIL 2004 – REVISED JULY 2005

Electrical Characteristics

V

CC+

= 5 V, V

CC

= GND, TA= 25 ° C (unless otherwise noted)

PARAMETER TEST CONDITIONS T

A

MIN TYP MAX UNIT

25 ° C 1 4

TL103W V

icm

= 0 V

Full range 5

V

IO

Input offset voltage mV

25 ° C 0.5 3

TL103WA V

icm

= 0 V

Full range 5

α V

IO

Input offset-voltage drift 25 ° C 7 µ V/ ° C

I

IB

Input bias current (negative input) 25 ° C 20 nA

A

VD

Large-signal voltage gain V

CC+

= 15 V, RL= 2 k Ω , V

icm

= 0 V 25 ° C 100 V/mV

k

SVR

Supply-voltage rejection ratio V

CC+

= 5 V to 30 V, V

icm

= 0 V 25 ° C 65 100 dB

I

source

Output source current V

CC+

= 15 V, VO= 2 V, Vid= 1 V 25 ° C 20 40 mA

I

SC

Short circuit to GND V

CC+

= 15 V 25 ° C 40 60 mA

V

CC+

= 15 V, VO= 2 V, Vid= –1 V 10 12 mA

I

sink

Output sink current 25 ° C

V

CC+

= 15 V, VO= 0.2 V, Vid= –1 V 12 50 µ A

25 ° C 26 27

V

CC

= 30 V, RL= 2 k Ω

Full range 26

V

OH

High-level output voltage V

25 ° C 27 28

V

CC

= 30 V, RL= 10 k Ω

Full range 27

25 ° C 5 20

V

OL

Low-level output voltage RL= 10 k Ω mV

Full range 20

V

CC+

= 15 V, CL= 100 pF,

SR Slew rate at unity gain 25 ° C 0.2 0.4 V/ µ s

RL= 2 k Ω , VI= 0.5 V to 2 V, unity gain
V

CC+

= 30 V, VI= 10 mV,

GBW Gain bandwidth product 25 ° C 0.5 0.9 MHz

CL= 100 pF, RL= 2 k Ω , f = 100 kHz
V

CC+

= 30 V, VO= 2 Vpp, CL= 100 pF,

THD Total harmonic distortion 25 ° C 0.02 %

RL= 2 k Ω , f = 1 kHz, AV= 20 dB

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