JFET Input
Operational Amplifiers
These low cost JFET input operational amplifiers combine two state±of±the±art analog technologies on a single monolithic integrated circuit. Each internally compensated operational amplifier has well matched high voltage JFET input devices for low input offset voltage. The JFET technology provides wide bandwidths and fast slew rates with low input bias currents, input offset currents, and supply currents.
These devices are available in single, dual and quad operational amplifiers which are pin±compatible with the industry standard MC1741, MC1458, and the MC3403/LM324 bipolar devices.
•Input Offset Voltage of 5.0 mV Max (LF347B)
•Low Input Bias Current: 50 pA
•Low Input Noise Voltage: 16 nV/ Hz
•Wide Gain Bandwidth: 4.0 MHz
•High Slew Rate: 13V/μs
•Low Supply Current: 1.8 mA per Amplifier
•High Input Impedance: 1012 Ω
•High Common Mode and Supply Voltage Rejection Ratios: 100 dB
MAXIMUM RATINGS
Rating |
Symbol |
Value |
Unit |
|
|
|
|
Supply Voltage |
VCC |
+18 |
V |
|
VEE |
±18 |
|
Differential Input Voltage |
VID |
±30 |
V |
Input Voltage Range (Note 1) |
VIDR |
±15 |
V |
Output Short Circuit Duration (Note 2) |
tSC |
Continuous |
|
Power Dissipation at TA = +25°C |
PD |
900 |
mW |
Derate above TA =+25°C |
1/θJA |
10 |
mW/°C |
Operating Ambient Temperature Range |
TA |
0 to +70 |
°C |
Operating Junction Temperature Range |
TJ |
115 |
°C |
Storage Temperature Range |
Tstg |
± 65 to |
°C |
|
|
+150 |
|
|
|
|
|
NOTES: 1. Unless otherwise specified, the absolute maximum negative input voltage is limited to the negative power supply.
2.Any amplifier output can be shorted to ground indefinitely. However, if more than one amplifier output is shorted simultaneously, maximum junction temperature rating may be exceeded.
Order this document by LF347/D
LF347, B
LF351
LF353
FAMILY OF JFET
OPERATIONAL AMPLIFIERS
N SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
|
|
|
|
|
PLASTIC PACKAGE |
||
8 |
|
|
|
|
|
CASE 751 |
|
|
|
|
1 |
|
|
(SO±8) |
|
|
|
|
|
|
|
|
|
|
|
|
PIN CONNECTIONS |
||||
Offset Null |
1 |
|
|
8 |
NC |
|
|
Invt Input |
2 |
± |
|
7 |
VCC |
LF351 |
|
|
|
|
|||||
Noninvt Input |
3 |
+ |
|
6 |
Output |
(Top View) |
|
V |
EE |
4 |
|
|
5 |
Offset Null |
|
|
|
|
|
|
|
|
|
Output A 1 |
± |
|
8 |
VCC |
LF353 |
||
Inputs A |
2 |
± |
7 |
Output B |
|||
3 |
A |
6 |
|
(Top View) |
|||
|
|
|
|||||
VEE 4 |
+ |
B + |
5 |
Inputs B |
|
||
|
|
|
N SUFFIX
PLASTIC PACKAGE
CASE 646
14
1
PIN CONNECTIONS
Out 1 |
1 |
|
|
|
|
14 |
Out 4 |
|
2 |
± |
|
|
± 13 |
|
|
Inputs 1 |
|
|
|
|
|
|
Inputs 4 |
|
3 |
+ |
1 |
4 |
+ |
12 |
|
|
|
|
|
|
|
||
VCC |
4 |
|
|
|
|
11 |
VEE |
|
5 |
+ |
|
|
+ 10 |
|
|
Inputs 2 |
|
|
2 |
3 |
|
|
Inputs 3 |
|
6 |
± |
± |
9 |
|
||
Out 2 |
7 |
|
|
|
|
8 |
Out 3 |
(Top View)
ORDERING INFORMATION
|
|
Operating |
|
|
Device |
Function |
Temperature Range |
Package |
|
|
|
|
|
|
LF351D |
Single |
|
SO±8 |
|
LF351N |
Single |
|
Plastic DIP |
|
|
|
|
|
|
LF353D |
Dual |
TA = 0° to +70°C |
SO±8 |
|
LF353N |
Dual |
Plastic DIP |
||
|
||||
|
|
|
|
|
LF347BN |
Quad |
|
Plastic DIP |
|
LF347N |
Quad |
|
Plastic DIP |
|
|
|
|
|
|
Motorola, Inc. 1996 |
|
Rev 0 |
LF347, B LF351 LF353
ELECTRICAL CHARACTERISTICS (VCC = +15 VEE = ±15 V, TA = 25°C, unless otherwise noted.)
|
|
|
LF347B |
|
LF347, LF351, LF353 |
|
|
|
|
||
Characteristic |
Symbol |
|
|
|
|
|
|
Unit |
|||
Min |
Typ |
Max |
Min |
Typ |
Max |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
Input Offset Voltage (RS ≤ 10 k, VCM = 0) |
VIO |
|
|
|
|
|
|
mV |
|||
TA = +25°C |
|
± |
1.0 |
5.0 |
± |
5.0 |
10 |
|
|
|
|
0°C ≤ TA ≤ +70°C |
|
± |
± |
8.0 |
± |
± |
13 |
|
|
|
|
Avg. Temperature Coefficient of Input Offset Voltage |
VIO/ T |
|
|
|
|
|
|
μV/°C |
|||
RS ≤ 10 k, 0°C ≤ TA ≤ +70°C |
|
± |
10 |
± |
± |
10 |
± |
|
|
|
|
Input Offset Current (VCM = 0, Note 3) |
IIO |
|
|
|
|
|
|
|
|
|
|
TA = +25°C |
|
± |
25 |
100 |
± |
25 |
100 |
pA |
|||
0°C ≤ TA ≤ +70°C |
|
± |
± |
4.0 |
± |
± |
4.0 |
nA |
|||
Input Bias Current (VCM = 0, Note 3) |
IIB |
|
|
|
|
|
|
|
|
|
|
TA = +25°C |
|
± |
50 |
200 |
± |
50 |
200 |
pA |
|||
0°C ≤ TA ≤ +70°C |
|
± |
± |
8.0 |
± |
± |
8.0 |
nA |
|||
Input Resistance |
ri |
± |
1012 |
± |
± |
1012 |
± |
Ω |
|
|
|
Common Mode Input Voltage Range |
VICR |
±11 |
+15 |
± |
±11 |
+15 |
± |
V |
|
|
|
|
|
|
±12 |
|
|
±12 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Large±Signal Voltage Gain (VO = ±10 V, RL = 2.0 k) |
AVOL |
|
|
|
|
|
|
V/mV |
|||
TA = +25°C |
|
50 |
100 |
± |
25 |
100 |
± |
|
|
|
|
0°C ≤ TA ≤ +70°C |
|
25 |
± |
± |
15 |
± |
± |
|
|
|
|
Output Voltage Swing (RL = 10 k) |
VO |
±12 |
±14 |
± |
±12 |
±14 |
± |
V |
|
|
|
Common Mode Rejection (RS ≤ 10 k) |
CMR |
80 |
100 |
± |
70 |
100 |
± |
dB |
|||
Supply Voltage Rejection (RS ≤ 10 k) |
PSRR |
80 |
100 |
± |
70 |
100 |
± |
dB |
|||
Supply Current |
ID |
|
|
|
|
|
|
mA |
|||
LF347 |
|
± |
7.2 |
11 |
± |
7.2 |
11 |
|
|
|
|
LF351 |
|
± |
± |
± |
± |
1.8 |
3.4 |
|
|
|
|
LF353 |
|
± |
± |
± |
± |
3.6 |
6.5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Short Circuit Current |
ISC |
± |
25 |
± |
± |
25 |
± |
mA |
|||
Slew Rate (AV = +1) |
SR |
± |
13 |
± |
± |
13 |
± |
V/μs |
|||
Gain±Bandwidth Product |
BWp |
± |
4.0 |
± |
± |
4.0 |
± |
MHz |
|||
|
|
|
|
|
|
|
|
|
|
|
|
Equivalent Input Noise Voltage |
en |
± |
24 |
± |
± |
24 |
± |
nV/√ |
|
|
|
Hz |
|
|
|||||||||
(RS = 100 Ω, f = 1000 Hz) |
|
|
|
|
|
|
|
|
|
|
|
Equivalent Input Noise Current (f = 1000 Hz) |
in |
± |
0.01 |
± |
± |
0.01 |
± |
pA/ √ |
|
|
|
Hz |
|
||||||||||
Channel Separation (LF347, LF353) |
± |
± |
±120 |
± |
± |
±120 |
± |
dB |
|||
1.0 Hz ≤ f ≤ 20 kHz (Input Referred) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
For Typical Characteristic Performance Curves, refer to MC34001, 34002, 34004 data sheet.
NOTE: 3. Input bias currents of JFET input op amps approximately double for every 10°C rise in junction temperature. To maintain junction temperatures as close to ambient as is possible, pulse techniques are utilized during test.
2 |
MOTOROLA ANALOG IC DEVICE DATA |