©2001 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.0

Features

• Internally trimmed offset voltage: 10mV
• Low input bias current: 50pA
• Wide gain bandwidth: 4MHz
• High slew rate: 13V/

µ

s

• High Input impedance: 10

12

Ω¦

Description

The LF353 is a JFET input operational amplifier with an
internally compensated input offset voltage. The JFET input
device provides wide bandwidth, low input bias currents and
offset currents.

8-DIP

1

8-SOP

1

Internal Block Diagram

LF353

Dual Operational Amplifier (JFET)

LF353

2

Schematic Diagram

(One Section Only)

Absolute Maximum Ratings

Parameter

Symbol

Value

Unit

Power Supply Voltage

V

CC

±

18

V

Differential  Input Voltage

V

I(DIFF)

30

V

Input Voltage Range

V

I

±

15

V

Output Short Circuit Duration

-

Continuous

-

Power Dissipation

P

D

500

mW

Operating Temperature Range

T

OPR

0 ~ +70

°

C

Storage Temperature Range

T

STG

-65 ~ +150

°

C

LF353

3

Electrical Characteristics

(V

CC 

=+15V, V

EE

= -15V, T

A

=25

 

°

C, unless otherwise specified)

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Input Offset Voltage 

V

IO

R

S

=10K

Ω¦

-

5.0

10

mV

0

 

°

C

≤

T

A

≤

+70

 

°

C

-

-

-

-

Input Offset Voltage Drift

∆

V

IO

/

∆

T   R

S

=10K

Ω¦

0

 

°

C

≤

T

A

≤

+70

 

°

C

-

10

-

 

µ

V/

 

°

C

Input Offset Current 

I

IO

-

25

100

pA

0

 

°

C

≤

T

A

≤

+70

 

°

C

-

-

4

 

 

 

nA

Input Bias Current 

I

BIAS

-

50

200

pA

0

 

°

C

≤

T

A

≤

+70

 

°

C

-

-

8

 

 

 

nA

Input Resistance

R

I

-

-

10

12

-

Ω¦

Large Signal Voltage Gain 

G

V

V

O(P-P) 

= 

±1

0V

25

100

-

V/mV

R

L 

= 2K

Ω¦

0

 

°

C

≤

T

A

≤

+70

 

°

C

15

-

-

-

Output Voltage Swing

V

O(P_P)

R

L

 = 10K

Ω¦

±

12

±

13.5

-

V

Input Voltage Range

V

I(R)

-

±

11

±

15/-12

-

V

Common Mode Rejection Ratio

CMRR

R

S 

≤ 

10K

Ω¦

70

100

-

dB

Power Supply Rejection Ratio

PSRR

R

S 

≤

 10K

Ω¦

70

100

-

dB

Power Supply Current

I

CC

-

-

3.6

6.5

mA

Slew Rate

SR

G

V

 = 1

-

13

-

V/

µ

S

Gain-Bandwidth Product

GBW

-

-

4

-

MHz

Channel Seperation

CS

f = 1Hz ~ 20KHz
(Input referenced)

-

120

-

dB

Equivalent Input Noise Voltage

V

NI

R

S

 = 100

Ω¦

f = 1KHz

-

16

-

 nV/

Equivalent Input Noise Current

I

NI

f = 1KHz

-

0.01

-

 pA/

Hz

Hz

LF353

4

Mechanical Dimensions 

Package

8-DIP

6.40 

±

0.20

3.30 

±

0.30

0.130 

±

0.012

3.40 

±

0.20

0.134 

±

0.008

#1

#4

#5

#8

0.252 

±

0.008

9.20 

±

0.20

0.79

2.54

0.100

0.031

()

0.46 

±

0.10

0.018 

±

0.004

0.060 

±

0.004

1.524 

±

0.10

0.362 

±

0.008

9.60

0.378

MAX

5.08

0.200

0.33

0.013

7.62

0~15

°

0.300

MAX

MIN

0.25

+0.10

-0.05

0.010

+0.004

-0.002

LF353

5

Mechanical Dimensions 

Package

4.92 

±

0.20

0.194 

±

0.008

0.41 

±

0.10

0.016 

±

0.004

1.27

0.050

5.72

0.225

1.55 

±

0.20

0.061 

±

0.008

0.1~0.25

0.004~0.001

6.00 

±

0.30

0.236 

±

0.012

3.95 

±

0.20

0.156 

±

0.008

0.50 

±

0.20

0.020 

±

0.008

5.13

0.202

MAX

#1

#4

#5

0~8

°

#8

0.56

0.022

()

1.80

0.071

MAX0.10

MAX0.004

MAX

MIN

+

0.10

-0.05

0.15

+

0.004

-0.002

0.006

8-SOP

LF353

6/1/01 0.0m 001

Stock#DSxxxxxxxx

ï›™

 2001 Fairchild Semiconductor Corporation

LIFE SUPPORT POLICY 
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES 
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR 
CORPORATION.  As used herein:

1. Life support devices or systems are devices or systems 

which, (a) are intended for surgical implant into the body, 
or (b) support or sustain life, and (c) whose failure to 
perform when properly used in accordance with 
instructions for use provided in the labeling, can be 
reasonably expected to result in a significant injury of the 
user.

2. A critical component in any component of a life support 

device or system whose failure to perform can be 
reasonably expected to cause the failure of the life support 
device or system, or to affect its safety or effectiveness.

www.fairchildsemi.com

DISCLAIMER 
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY 
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY 
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER 
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

Ordering Information

Product Number

Package

Operating Temperature

LF353N

8-DIP

0 ~ + 70

°

C

LF353M

8-SOP