MOTOROLA LF353N, LF353DR2, LF353D, LF351DR2, LF347BN Datasheet

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FAMILY OF JFET

OPERATIONAL AMPLIFIERS

Order this document by LF347/D

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

N SUFFIX

PLASTIC PACKAGE

CASE 626

Output A

Inputs A

V

EE

V

CC

Output B

Inputs B

LF351
(Top View)

LF353
(Top View)

Offset Null

Invt Input

Noninvt Input

V

EE

NC
V

CC

Output
Offset Null

1
2
3
4

8
7
6
5

+

–

–

–

+

+

A

B

1
2
3
4

8
7
6
5

1

1

8

8

PIN CONNECTIONS

N SUFFIX

PLASTIC PACKAGE

CASE 646

(Top View)

Out 1

Inputs 1

V

CC

Inputs 2

Out 2

Out 4

Inputs 4

V

EE

Inputs 3

Out 3

1

2

3

4
5

6

78

9

10

11

12

13

14

4

23

++
++

1

––

––

14

1

PIN CONNECTIONS

ORDERING INFORMATION

FunctionDevice Package

Operating

Temperature Range

LF351D
LF351N

Single
Single

TA = 0° to +70°C

SO–8

Plastic DIP

LF353D
LF353N

Dual
Dual

SO–8

Plastic DIP

LF347BN
LF347N

Quad
Quad

Plastic DIP
Plastic DIP

1

MOTOROLA ANALOG IC DEVICE DATA

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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

Ǹ

• Wide Gain Bandwidth: 4.0 MHz

• High Slew Rate: 13V/µs

• Low Supply Current: 1.8 mA per Amplifier

• High Input Impedance: 10

12

Ω

• High Common Mode and Supply Voltage Rejection Ratios: 100 dB

MAXIMUM RATINGS

Rating Symbol Value Unit

Supply Voltage V

CC

+18 V

V

EE

–18

Differential Input Voltage V

ID

±30 V

Input Voltage Range (Note 1) V

IDR

±15 V

Output Short Circuit Duration (Note 2) t

SC

Continuous

Power Dissipation at TA = +25°C P

D

900 mW

Derate above TA =+25°C 1/

θJA

10 mW/°C

Operating Ambient Temperature Range T

A

0 to +70 °C

Operating Junction Temperature Range T

J

115 °C

Storage Temperature Range T

stg

– 65 to

+150

°C

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.

 Motorola, Inc. 1996 Rev 0

LF347, B LF351 LF353

2

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(VCC = +15 VEE = –15 V , TA = 25°C, unless otherwise noted.)

LF347B LF347, LF351, LF353

Characteristic Symbol

Min Typ Max Min Typ Max

Unit

Input Offset Voltage (RS ≤ 10 k, VCM = 0) V

IO

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) I

IO

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) I

IB

TA = +25°C – 50 200 – 50 200 pA
0°C ≤ TA ≤ +70°C – – 8.0 – – 8.0 nA

Input Resistance r

i

– 10

12

– – 10

12

– Ω

Common Mode Input Voltage Range V

ICR

±11 +15 – ±11 +15 – V

–12 –12

Large–Signal Voltage Gain (VO = ±10 V, RL = 2.0 k) A

VOL

V/mV
TA = +25°C 50 100 – 25 100 –
0°C ≤ TA ≤ +70°C 25 – – 15 – –

Output Voltage Swing (RL = 10 k) V

O

±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 I

D

mA
LF347 – 7.2 11 – 7.2 11
LF351 – – – – 1.8 3.4
LF353 – – – – 3.6 6.5

Short Circuit Current I

SC

– 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 e

n

– 24 – – 24 –

nV/ Hz√

(RS = 100 Ω, f = 1000 Hz)

Equivalent Input Noise Current (f = 1000 Hz) i

n

– 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. T o maintain junction temperatures as

close to ambient as is possible, pulse techniques are utilized during test.