LF347, LF347B

JFET-INPUT

QUAD OPERATIONAL AMPLIFIERS

SLOS013B – MARCH 1987 – REVISED AUGUST 1994

2

POST OFFICE BOX 655303

DISSIPATION RATING TABLE

PACKAGE

POWER RATING

DERATING

FACTOR

DERATE

ABOVE TA

TA = 70°C

POWER RATING

D

N

608 mW

680 mW

7.6 mW/

°C

N/A

61

°C

N/A

608 mW

680 mW

recommended operating conditions

MIN

MAX

UNIT

Supply voltage, VCC +

3.5

18

V

Supply voltage, VCC –

– 3.5

–18

V

otherwise specified)

PARAMETER

TEST

T †

LF347

LF347B

UNIT

PARAMETER

CONDITIONS

TA†

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

VIO

Input offset voltage

VIC = 0,

25

°C

5

10

3

5

mV

VIO

Input offset voltage

IC

,

RS = 10 kΩ

Full range

13

7

mV

αVIO

Average temperature coefficient of

input offset voltage

VIC = 0,

RS = 10 kΩ

18

18

µV/°C

IIO

Inp t offset c rrent‡

VIC =0

25

°C

25

100

25

100

pA

IIO

Input offset current‡

VIC = 0

70

°C

4

4

nA

IIB

Inp t bias c rrent‡

VIC =0

25

°C

50

200

50

200

pA

IIB

Input bias current‡

VIC = 0

70

°C

8

8

nA

VICR

Common-mode input voltage range

±11

–12

to

15

±11

–12

to

15

V

VOM

Maximum peak output voltage swing

RL = 10 kΩ

±12 ±13.5

±12 ±13.5

V

AVD

Large signal differential voltage

VO = ± 10 V,

25

°C

25

100

50

100

V/mV

AVD

Large-signal differential voltage

O

,

RL = 2 kΩ

Full range

15

25

V/mV

ri

Input resistance

TA = 25°C

1012

1012

Ω

CMRR

Common-mode rejection ratio

RS ≤ 2 kΩ

70

100

80

100

dB

kSVR

Supply-voltage rejection ratio

See Note 2

70

100

80

100

dB

ICC

Supply current

8

11

8

11

mA

† Full range is 0

°C to 70°C.

‡ Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive. Pulse techniques

must be used that will maintain the junction temperatures as close to the ambient temperature as possible.

NOTE 2: Supply-voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VO1/VO2

Crosstalk attentuation

f = 1 kHz

120

dB

SR

Slew rate

8

13

V/

µs

B1

Unity-gain bandwidth

3

MHz

Vn

Equivalent input noise voltage

f = 1 kHz,

RS = 20 Ω

18

nV/

√Hz

In

Equivalent input noise current

f = 1 kHz

0.01

pA/

√Hz