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LF157 PDF даташит

Спецификация LF157 изготовлена ​​​​«STMicroelectronics» и имеет функцию, называемую «WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS».

Детали детали

Номер произв LF157
Описание WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
Производители STMicroelectronics
логотип STMicroelectronics логотип 

14 Pages
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LF157 Даташит, Описание, Даташиты
LF155-LF255-LF355
LF156-LF256-LF356
® LF157-LF257-LF357
WIDE BANDWIDTH
SINGLE J-FET OPERATIONAL AMPLIFIERS
. HIGH INPUT IMPEDANCE J-FET INPUT
STAGE
. HIGH SPEED J-FET OP-AMPs : up to 20MHz,
50V/µs
. OFFSET VOLTAGE ADJUSTMENT DOES NOT
DEGRADE DRIFT OR COMMON-MODE
. REJECTION AS IN MOST OF MONOLITHIC
AMPLIFIERS
INTERNAL COMPENSATION AND LARGE
DIFFERENTIAL INPUT VOLTAGECAPABILITY
(UP TO VCC+)
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
TYPICAL APPLICATIONS
. PRECISION HIGH SPEED INTEGRATORS
. FAST D/A AND CONVERTERS
. HIGH IMPEDANCE BUFFERS
. WIDEBAND, LOW NOISE, LOW DRIFT
AMPLIFIERS
. LOGARITHIMIC AMPLIFIERS
. PHOTOCELL AMPLIFIERS
. SAMPLE AND HOLD CIRCUITS
ORDER CODES
Part Number
LF355, LF356, LF357
LF255, LF256, LF257
LF155, LF156, LF157
Example : LF355N
Temperature
Range
0oC, +70oC
–40oC, +105oC
–55oC, +125oC
Package
ND
••
••
••
PIN CONNECTIONS (top view)
DE SC RI P TI O N
These circuits are monolithic J-FET input operational
amplifiers incorporating well matched, high voltage
J-FET on the same chip with standard bipolar transis-
tors.
This amplifiers feature low input bias and offset cur-
rents, low input offset voltage and input offset voltage
drift,coupledwith offsetadjust which doesnot degrade
drift or common-mode rejection.
The devices are also designed for high slew rate, wide
bandwidth,extremelyfastsettlingtime, lowvoltageand
current noise and a low 1/f noise level.
July 1998
18
27
36
45
1 - Offset Null 1
2 - Inverting input
3 - Non-inverting input
4 - VCC-
5 - Offset Null 2
6 - Output
7 - VCC+
8 - N.C.
1/14









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LF157 Даташит, Описание, Даташиты
LF155 - LF156 - LF157
SCHEMATIC DIAGRAM
Vio ADJUSTMENT
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Vi
Vid
Ptot
Toper
Parameter
Supply Voltage
Input Voltage - (note 1)
Differential Input Voltage
Power Dissipation
Output Short-circuit Duration
Operating Free Air Temperature Range
Tstg Storage Temperature Range
LF155-LF156-LF157
LF255-LF256-LF257
LF355-LF356-LF357
Value
±22
±20
±40
570
Infinite
-55 to +125
–40 to +105
0 to 70
–65 to 150
Unit
V
V
V
mW
oC
oC
2/14









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LF157 Даташит, Описание, Даташиты
LF155 - LF156 - LF157
ELECTRICAL CHARACTERISTICS
LF155, LF156, LF157
LF255, LF256, LF257
-55oC Tamb +125oC
-40oC Tamb +105oC
(unless otherwise specified)
±5V VCC ≤ ±20V
±5V VCC ≤ ±20V
Symbol
Parameter
Vio
Iio
Iib
Avd
SVR
ICC
DVio
DVio/Vio
Vicm
Input Offset Voltage
Tamb = 25oC
(RS
=
50)
Tmin. Tamb Tmax.
LF155, LF156, LF157
LF255, LF256, LF257
Input Offset Current - (note 3)
Tamb = 25oC
Tmin. Tamb Tmax.
LF155, LF156, LF157
LF255, LF256, LF257
Input Bias Current - (note 3)
Tamb = 25oC
Tmin. Tamb Tmax.
LF155, LF156, LF157
LF255, LF256, LF257
Large Signal Voltage
Tamb = 25oC
Gain
(RL
=
2k,
VO
=
±10V,
VCC
=
±15V)
Tmin. Tamb Tmax.
Supply Voltage Rejection Ratio - (note 4)
SupTpalymbC=ur2re5noCt (VCC = ±15V, no load)
LF155, LF255
LF156, LF256
LF157, LF257
Input Offset Voltage Drift (RS = 50)
Change in Average Temperature Coefficient with Vio adjust
(RS = 50) - (note 2)
Input Common Mode Voltage Range (VCC = ±15V, Tamb = 25oC)
CMR
±VOPP
GBP
SR
Ri
Ci
en
in
ts
Common Mode Rejection Ratio
Output Voltage Swing (VCC = ±15V)
RL = 10k
RL = 2k
Gain Bandwidth Product (VCC = ±15V, Tamb = 25oC)
LF155, LF255
LF156, LF256
LF157, LF257
Slew Rate (VCC = ±15V, Tamb = 25oC)
AV = 1
LF155, LF255
LF156, LF256
AV = 5
LF157, LF257
Input Resistance (Tamb = 25oC)
Input Capacitance (VCC = ±15V, Tamb = 25oC)
Equivalent Input Noise Voltage
(VCC = ±15V, Tamb = 25oC, RS = 100)
f = 1000Hz
f = 100Hz
LF155, LF255
LF156, LF256
LF157, LF257
LF155, LF255
LF156, LF256
LF157, LF257
Equivalent Input Noise Current
(VCC = ±15V, Tamb = 25oC, f = 100Hz or f = 1000Hz)
Settling Time (VCC = ±15V, Tamb = 25oC) - (note 5)
LF155, LF255
LF156, LF256
LF157, LF257
LF155 - LF156 - LF157
LF255 - LF256 - LF257
Min. Typ. Max.
35
7
6.2
3 20
20
1
20 100
50
5
50 200
25
85 100
24
57
57
5
0.5
±11 +15.1
-12
85 100
±12 ±13
±10 ±12
2.5
5
20
5
7.5 12
30 50
1012
3
20
12
12
25
15
15
0.01
4
1.5
1.5
Unit
mV
pA
nA
nA
pA
nA
nA
V/mV
dB
mA
µV/oC
µV/oC
V
dB
V
MHz
V/µs
pF
nV
Hz
pA
Hz
µs
3/14










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