LF351
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS014B – MARCH 1987 – REVISED AUGUST 1994
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC+ 18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply voltage, VCC – –18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V ID ±30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI (see Note 1) ±15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duration of output short circuit unlimited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation 500 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating temperature range 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTE 1: Unless otherwise specified, the absolute maximum negative input voltage is equal to the negative power supply voltage.
recommended operating conditions
MIN MAX UNIT
Supply voltage, VCC + 3.5 18 V
Supply voltage, VCC – –3.5 –18 V
electrical characteristics over operating free-air temperature range, VCC± = ±15 V (unless
otherwise noted)
PARAMETER TEST CONDITIONS TA†MIN TYP MAX UNIT
p
25°C 5 10
IO
u
v
IC =
,
S =
Full range 13
αVIO Average temperature coefficient of input offset
voltage VIC = 0, RS = 10 kΩ10 µV/°C
25°C 25 100 pA
IO
nput o
set current
IC =
70°C 4 nA
25°C 50 200 pA
IB
nput
as current
IC =
70°C 8 nA
VICR Common-mode input voltage range ±11 –12
to
15 V
VOM Maximum peak output voltage swing RL = 10 kΩ±12 ±13.5 V
Large signal differential voltage
25°C 25 200
VD
-
v
O =
,
L =
Full range 15 200
riInput resistance TJ = 25°C 1012 Ω
CMRR Common-mode rejection ratio RS ≤ 10 kΩ70 100 dB
kSVR Supply-voltage rejection ratio See Note 2 70 100 dB
ICC Supply current 1.8 3.4 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.
operating characteristics, VCC± = ±15 V
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SR Slew rate 8 13 V/µs
B1Unity-gain bandwidth 3 MHz
VnEquivalent input noise voltage f = 1 kHz , RS = 20 Ω 18 nV/√Hz
InEquivalent input noise current f = 1 kHz 0.01 pA/√Hz