LF357 STMICROELECTRONICS [STMicroelectronics], LF357 Datasheet - Page 4

• Manufacturer Part Number: LF357
• Description: WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

LF155 - LF156 - LF157
ELECTRICAL CHARACTERISTICS
4/14
LF355, LF356, LF357
Notes : 1. Unless otherwise specified the absolute maximum negative input voltage is equal to the negative power supply voltage.
Symbol
DV
CMR
GBP
SVR
DV
V
V
A
SR
V
I
R
C
e
I
I
CC
io
i
t
icm
io
ib
OPP
vd
n
s
io
n
/V
i
i
io
io
2. The temperature coefficient of the adjusted input offset voltage changes only a small amount (0.5 V/
3. The input bias currents are junction leakage currents which approximately double for every 10
4. Supply voltage rejection is measured for both supply magnitudes increasing or decreasing simultaneously, in accordance with
5. Settling time is defined here, for a unity gain inverter connection using 2k resistors for the LF155, LF156 series. It is the time
of adjustment from its original unadjusted value. Common-mode rejection and open loop voltage gain are alsounaffected by
offset adjustment.
temperature T
In a normal operation the junction temperature rises above the ambient temperature as a result of internal power dissipation,
P
f input currents are to be kept to a minimum.
common practise.
required for the error voltage (the voltage at the inverting input pin on the amplifier) to settle to within 0.01% of its final value from
the time a 10V step input is applied to the inverter. For the LF157 series A
and the output step is 10V.
Input Offset Voltage (R
Input Offset Current - (note 3)
Input Bias Current - (note 3)
Large Signal Voltage Gain (R
Supply Voltage Rejection Ratio - (note 4)
Supply Current (no load)
Input Offset Voltage Drift (R
Change in Average Temperature Coefficient with V
(R
Input Common Mode Voltage Range (T
Common Mode Rejection Ratio
Output Voltage Swing
Gain Bandwidth Product T
Slew Rate (T
Input Resistance (T
Input Capacitance (Tamb = 25
Equivalent Input Noise Voltage (T
Equivalent Input Noise Current
(T
Settling Time (T
tot
-T
amb
S
T
T
T
T
T
T
T
T
T
A
A
f = 1000Hz
f = 100Hz
amb
= 50 )
amb
min.
amb
min.
amb
min.
amb
min.
amb
V
V
= 25
= 5
=T
= 1
= 25
= 25
= 25
= 25
= 25
amb
o
T
T
T
T
amb
C, f = 100Hz or f = 1000Hz)
+R
amb
amb
amb
amb
amb
o
o
o
o
o
. Due to limited production test time, the input bias current measured is correlated to junction temperature.
C
C
C
C
C
th(j-a)
amb
= 25
xP
T
T
T
T
max.
max.
max.
max.
amb
= 25
tot
o
where Rt
C)
S
= 25
o
0
= 50 )
C) - (note 5)
o
amb
C
Parameter
S
o
C)
h(j-a)
L
= 50 ) - (note 2)
= 25
o
= 2k , V
C)
T
is the thermal resistance from junction to ambient. Use of a heatsink is recommended
amb
amb
o
C)
= 25
amb
O
+70
= 10V)
o
C, R
= 25
LF355
LF356, LF357
R
R
LF355
LF356
LF357
LF355
LF356
LF357
LF355
LF356, LF357
LF355
LF356, LF357
LF355
LF356, LF357
o
C
L
L
S
o
= 10k
= 2k
C)
= 100 )
io
adjust
V
V
= -5, the feedback resistor from output to input is 2k
CC
= 15V
LF355 - LF356 - LF357
Min.
25
15
80
80
10
12
10
, (unless otherwise specified)
o
C increase in the junction
+15.1
Typ.
10
0.01
200
100
100
0.5
-12
2.5
1.5
20
20
12
50
20
12
25
15
3
3
2
5
5
13
12
5
5
3
4
o
12
C typically) for each mV
Max.
200
10
13
50
10
2
8
4
per mV
V/mV
Unit
MHz
V/ s
mV
mA
V/
V/
pA
nA
pA
nA
dB
dB
nV
pA
pF
Hz
Hz
V
V
s
o
o
C
C