ST MICROELECTRONICS L 272 D Datasheet

L272 • L272A
Dual Power Operational Amplifier

L272 • L272A Dual Power Operational Amplifier

June 2001
Revised May 2005

General Description

The L272 and L272A are high-power dual operational
amplifier provided as a 8- DIP and 16-SOP package. The
operational amplifier is designed for low impedance loads
and will deliver output current up to 0.7A. The L272A offers
tighter specifications for input bias current, input offset volt­age and input offset currents. The L272 and L272 A can be
used in a wide range of applic ations including po wer sup­ply, VCR, monitor, servo amplifier, compact disc, etc.

Features

■ Output Current up to 0.7A

■ Operates at Low Voltage (VS(MIN) = 4V)

■ Low Saturation Voltage (I

■ Thermal Shutdown (T SD = 160×C ) Ground Compati ble

Inputs

■ Ground Compatible Inputs

■ Large Common Mode & Differential Mode Range

= 0.5A, VO = 1.5V)

p

Applications

• Servo Amplifier

• Power Supply

• Compact Disc

•VCR

•Monitor

Ordering Code:

Product Number Package Packing Operating Temperature

L272M 8-DIP Tube
L272D2 16-SOP Tube
L272D2TF 16-SOP Tape and Reel
L272AM 8-DIP Tube
L272AD2 16-SOP Tube
L272AD2TF 16-SOP Tape and Reel

25q

C to 85qC

© 2005 Fairchild Semiconductor Corporation DS400471 www.fairchildsemi.com

Internal Block Diagram

L272 • L272A

Pin Definitions

Pin Number

8-DIP 16-SOP

1 16 OUTPUT1 Amp Output 1
21 V
3 2 OUTPUT2 Amp Output 2
44/5/12/13 V
57 INPUT
68 INPUT
79 INPUT
8 10 INPUT

Pin Name Pin Function Description

CC

/GND Negative Supply Voltage (GND)

EE



2 Amp Negative Input 2



2 Amp Positive Input 2



1 Amp Positive Input 1



1 Amp Negative Input 1

Positive Supply Voltage

www.fairchildsemi.com 2

Absolute Maximum Ratings(Note 1)

Parameter Symbol Value Unit s

Supply Voltage V
Input Voltage V
Differential Input Voltage V

I(DIFF)

DC Output Current I
Peak Output Current (Non Repetitive) I
Power Dissipation At: T

50qCP

amb

Operating Temperature Range Top
Storage and Junction Temperature T

stg

CC

I

O

P
tot

, T

j

40 V
V

S

❏

r

V

S

V
V

0.7 A
1A
1W



25 to 85



40 to 150

q

C

q

C

Thermal Data

Parameter Symbol Value Unit

Thermal Resistance Junction-Ambient Maximum
8-DIP R

T

ja 100

q

C/W

16-SOP 190

Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated
at these limits. The param et ric values defined in th e Electrical Characte ris t ic s tab les are not guaranteed at the absolute maximum ratings.

Electrical Characteristics (L272)

(VCC 12V, VEE 12V, TA 25qC unless otherwise specified)

Supply Voltage (VCC - VEE)V
Supply Current I

Input Bias Current I
Input Offset Voltage V
Input Offset Current I
Slew Rate SR V
Gain-Bandwidth Product GBW 350 kHz
Input Resistance R
Large Signal G
Input Noise Voltage e
Input Noise Current I
Common Mode Rejection Ratio CMRR 60.0 75.0 dB
Supply Voltage Rejection Ratio PSRR VCC 15V, VEE 15V

Output Voltage Swing VOVCC 24V, VEE 0V

Channel Separation CSf 1 kHz; RL 10:, GV 30 dB 60.0 dB
Total Harmonic Distortion THD f 1 kHz; GV 1dB, RL • 0.5 %
Thermal Shutdown Temperature (Note 2) TSD 160

Note 2: Guaranteed by design. Not 100% tested in production.

Parameter Symbol Conditions Min Typ Max Units

S

VO VCC/2

S

BIAS

IO

IO

N

24V, VEE 0V 8.0 12.0 mA

V

CC

VCC 12V, VEE 0V 7.5 11.0 mA

1VPP, Unit Gain 1.0 V/Ps

IN

I
VVO(pp)
N

r 10V 65.0 75.0 dB
B 20 kHz 10.0
B 20 kHz 200 pA

VCC 5V, VEE 5V

IP 0.1A 21.0 23.0 V
IP 0.5A 21.0 22.5 V

4.0 28.0 V

0.3 2.5

15.0 60.0 mV

50.0 250 nA

500 k

54.0 62.0 dB

P

P

q

L272 • L272A

A

:

V

C

3 www.fairchildsemi.com