LF347 STMicroelectronics, LF347 Datasheet

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LF347

Manufacturer Part Number
LF347
Description
JFET inputs, low input bias & offset current, (15nV/ÖHz & 0.01%)
Manufacturer
STMicroelectronics
Datasheet

Specifications of LF347

High Slew Rate
16V/µs (typ)

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DESCRIPTION
These circuits are high speed J–FET input quad
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 tem-
perature coefficient.
PIN CONNECTIONS (top view)
March 2001
LOW POWER CONSUMPTION
WIDE COMMON-MODE (UP TO V
DIFFERENTIAL VOLTAGE RANGE
LOW INPUT BIAS AND OFFSET CURRENT
OUTPUT SHORT-CIRCUIT PROTECTION
HIGH INPUT IMPEDANCE J–FET INPUT
STAGE
INTERNAL FREQUENCY COMPENSATION
LATCH UP FREE OPERATION
HIGH SLEW RATE : 16V/ s (typ)
Non-inverting Input 2
Non-inverting Input 1
Inverting Input 2
Inverting Input 1
Output 2
Output 1
QUAD J-FET OPERATIONAL AMPLIFIERS
V
CC
+
CC
1
2
3
4
5
6
7
+
) AND
+
+
-
-
ORDER CODE
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
LF147
LF247
LF347
Example : LF347IN
Part Number
+
+
-
-
14
13
12
11
10
9
8
Output 4
Inverting Input 4
Non-inverting Input 4
V
Non-inverting Input 3
Inverting Input 3
Output 3
CC
(Plastic Micropackage)
-
(Plastic Package)
WIDE BANDWIDTH
Temperature Range
-55°C, +125°C
-40°C, +105°C
0°C, +70°C
DIP14
SO14
D
N
LF147 - LF247
LF347
Package
N
D
1/10

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LF347 Summary of contents

Page 1

... PIN CONNECTIONS (top view) Inverting Input 1 Non-inverting Input 1 Non-inverting Input 2 Inverting Input 2 March 2001 QUAD J-FET OPERATIONAL AMPLIFIERS + ) AND CC ORDER CODE Part Number LF147 LF247 LF347 Example : LF347IN N = Dual in Line Package (DIP Small Outline Package (SO) - also available in Tape & Reel (DT) Output ...

Page 2

... LF147 - LF247 - LF347 SCHEMATIC DIAGRAM (each amplifier) ABSOLUTE MAXIMUM RATINGS Symbol Parameter V 1) Supply voltage - note Input Voltage - note i V Differential Input Voltage - note id P Power Dissipation tot Output Short-circuit Duration - note T Operating Free-air Temperature Range oper T Storage Temperature Range stg 1 ...

Page 3

... L amb = 100pF 25°C, unity gain L amb = 100pF 25°C, unity gain L amb = 10mV 100pF 100pF L L 100 f = 1KHz) S LF147 - LF247 - LF347 Min. Typ. Max. Unit V/°C 5 100 200 V/mV 50 200 ...

Page 4

... LF147 - LF247 - LF347 MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREQUENCY MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREQUENCY MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus LOAD RESISTANCE 4/10 MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREQUENCY MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE versus FREE AIR TEMP. ...

Page 5

... AMPLIFICATION AND PHASE SHIFT versus FREQUENCY 75 100 125 TOTAL POWER DISSIPATION versus FREE AIR TEMPERATURE COMMON MODE REJECTION RATIO versus FREE AIR TEMPERATURE V 15V = CC No signal No load 50 75 100 125 LF147 - LF247 - LF347 1000 400 200 100 15V 10V ...

Page 6

... LF147 - LF247 - LF347 COMMON MODE REJECTION RATIO versus FREE AIR TEMPERATURE 15V -75 -50 - TEMPERATURE (˚C) OUTPUT VOLTAGE versus ELAPSED TIME 28 24 OVERSHOOT 0.1 0.2 0.3 TIME ( s) TOTAL HARMONIC DISTORTION versus FREQUENCY ...

Page 7

... PARAMETER MEASUREMENT INFORMATION Figure 1 : Voltage Follower TYPICAL APPLICATIONS AUDIO DISTRIBUTOR AMPLIFIER LF147 - LF247 - LF347 Figure 2 : Gain-of-10 Inverting Amplifier 7/10 ...

Page 8

... LF147 - LF247 - LF347 TYPICAL APPLICATIONS (continued) POSITIVE FEEDBACK BANDPASS FILTER OUTPUT A SECOND ORDER BANDPASS FILTER fo = 100kHz 30; Gain = 16 8/10 OUTPUT B CASCADED BANDPASS FILTER fo = 100kHz 69; Gain = 16 ...

Page 9

... PACKAGE MECHANICAL DATA 14 PINS - PLASTIC DIP Dim. Min. a1 0. 1.27 Millimeters Typ. Max. 1.65 0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 2.54 LF147 - LF247 - LF347 Inches Min. Typ. Max. 0.020 0.055 0.065 0.020 0.010 0.787 0.335 0.100 0.600 0.280 0.201 0.130 0.050 0.100 9/10 ...

Page 10

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. © ...

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