OPERATIONAL AMPLIFIER. LF251 Datasheet

LF251 AMPLIFIER. Datasheet pdf. Equivalent


STMicroelectronics LF251
www.DataSheet4U.com
LF151
LF251 - LF351
WIDE BANDWIDTH
SINGLE J-FET OPERATIONAL AMPLIFIER
s INTERNALLY ADJUSTABLE INPUT OFFSET
VOLTAGE
s LOW POWER CONSUMPTION
s WIDE COMMON-MODE (UP TO VCC+) AND
DIFFERENTIAL VOLTAGE RANGE
s LOW INPUT BIAS AND OFFSET CURRENT
s OUTPUT SHORT-CIRCUIT PROTECTION
s HIGH INPUT IMPEDANCE J–FET INPUT
STAGE
s INTERNAL FREQUENCY COMPENSATION
s LATCH UP FREE OPERATION
s HIGH SLEW RATE : 16V/µs (typ)
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
DESCRIPTION
These circuits are high speed J–FET input single-
operational amplifiers incorporating well matched,
high voltage J–FET and bipolar transistors in a
monolithic integrated circuit.
The devices feature high slew rates, low input bias
and offset currents, and low offset voltage temper-
ature coefficient.
PIN CONNECTIONS (top view)
ORDER CODE
Part Number
LF351
LF251
LF151
Temperature Range
0°C, +70°C
-40°C, +105°C
-55°C, +125°C
Package
ND
••
••
••
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
1 - Offset null 1
1
8
2 - Inverting input
3 - Non-inverting input
2 7 4 - VCC-
5 - Offset null 2
3
6
6 - Output
7 - VCC+
4 5 8 - N.C.
March 2001
1/9


LF251 Datasheet
Recommendation LF251 Datasheet
Part LF251
Description WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIER
Feature LF251; www.DataSheet4U.com LF151 LF251 - LF351 WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIER s INTERNA.
Manufacture STMicroelectronics
Datasheet
Download LF251 Datasheet




STMicroelectronics LF251
LF151 - LF251 - LF351
SCHEMATIC DIAGRAM
INPUT OFFSET VOLTAGE NULL CIRCUIT
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
LF151
LF251
LF351
Unit
VCC Supply voltage - note 1)
±18 V
Vi Input Voltage - note 2)
±15 V
Vid Differential Input Voltage - note 3)
±30 V
Ptot Power Dissipation
680 mW
Output Short-circuit Duration - note 4)
Infinite
Toper Operating Free-air Temperature Range
-55 to +125
-40 to +105
0 to +70
°C
Tstg Storage Temperature Range
-65 to +150
°C
1. All voltage values, except differential voltage, are with respect to the zero reference level (ground) of the supply voltages where the zero reference
level is the midpoint between VCC+ and VCC-.
2. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 volts, whichever is less.
3. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
4. The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensure that the dissipation rating
is not exceeded
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STMicroelectronics LF251
LF151 - LF251 - LF351
ELECTRICAL CHARACTERISTICS
VCC = ±15V, Tamb = +25°C (unless otherwise specified)
Symbol
Parameter
Min. Typ. Max. Unit
Vio
DVio
Iio
Iib
Avd
SVR
ICC
Input Offset Voltage (Rs = 10k)
Tamb = +25°C
Tmin Tamb Tmax
Input Offset Voltage Drift
Input Offset Current- note 1)
Tamb = +25°C
Tmin Tamb Tmax
Input Bias Current -note 1
Tamb = +25°C
Tmin Tamb Tmax
Large Signal Voltage Gain (RL = 2k, Vo = ±10V)
Tamb = +25°C
Tmin Tamb Tmax
Supply Voltage Rejection Ratio (RS = 10kΩ)
Tamb = +25°C
Tmin Tamb Tmax
Supply Current, no load
Tamb = +25°C
Tmin Tamb Tmax
Vicm Input Common Mode Voltage Range
CMR
IOS
±Vopp
SR
tr
Kov
GBP
Ri
THD
Common Mode Rejection Ratio (RS = 10kΩ)
Tamb = +25°C
Tmin Tamb Tmax
Output Short-circuit Current
Tamb = +25°C
Tmin Tamb Tmax
Output Voltage Swing
Tamb = +25°C
Tmin Tamb Tmax
RL = 2k
RL = 10k
RL = 2k
RL = 10k
Slew Rate
Vi = 10V, RL = 2k, CL = 100pF, Tamb = +25°C, unity gain
Rise Time
Vi = 20mV, RL = 2k, CL = 100pF, Tamb = +25°C, unity gain
Overshoot
Vi = 20mV, RL = 2k, CL = 100pF, Tamb = +25°C, unity gain
Gain Bandwidth Product
f = 100kHz, Tamb = +25°C,Vin = 10mV, RL = 2k, CL = 100pF
Input Resistance
Total Harmonic Distortion ( f = 1kHz, Av = 20dB
RL = 2kΩ, CL = 100pF, Tamb = +25°C,Vo = 2Vpp)
50
25
80
80
±11
70
70
10
10
10
12
10
12
12
2.5
3
10
5
20
200
86
1.4
+15
-12
86
40
12
13.5
16
0.1
10
4
1012
0.01
mV
10
13
µV/°C
100 pA
4 nA
nA
200
20
V/mV
dB
3.4 mA
3.4
V
dB
mA
60
60
V
V/µs
µs
%
MHz
en
Equivalent Input Noise Voltage
RS = 100Ω, f = 1KHz
---n---V-----
15 Hz
m Phase Margin
45 Degrees
1. The input bias currents are junction leakage currents which approximately double for every 10°C increase in the junction temperature.
MAXIMUM PEAK-TO-PEAK OUTPUT
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