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/
s
High Input impedance: 10
12
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
-
5.0
10
mV
0
C
T
A
+70
C
-
-
-
-
Input Offset Voltage Drift
V
IO
/
T R
S
=10K
0
C
T
A
+70
C
-
10
-
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
-
Large Signal Voltage Gain
G
V
V
O(P-P)
=
1
0V
25
100
-
V/mV
R
L
= 2K
0
C
T
A
+70
C
15
-
-
-
Output Voltage Swing
V
O(P_P)
R
L
= 10K
12
13.5
-
V
Input Voltage Range
V
I(R)
-
11
15/-12
-
V
Common Mode Rejection Ratio
CMRR
R
S
10K
70
100
-
dB
Power Supply Rejection Ratio
PSRR
R
S
10K
70
100
-
dB
Power Supply Current
I
CC
-
-
3.6
6.5
mA
Slew Rate
SR
G
V
= 1
-
13
-
V/
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
f = 1KHz
-
16
-
nV/
Equivalent Input Noise Current
I
NI
f = 1KHz
-
0.01
-
pA/
Hz
Hz
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