Datasheet

LF444
www.ti.com SNOSC04D –MAY 1998–REVISED MARCH 2013
DC Electrical Characteristics
(1)
(continued)
Symbol Parameter Conditions LF444A LF444 Units
Min Typ Max Min Typ Max
R
IN
Input Resistance T
j
= 25°C 10
12
10
12
Ω
A
VOL
Large Signal Voltage Gain V
S
= ±15V, V
O
= ±10V 50 100 25 100 V/mV
R
L
= 10 kΩ, T
A
= 25°C
Over Temperature 25 15 V/mV
V
O
Output Voltage Swing V
S
= ±15V, R
L
= 10 kΩ ±12 ±13 ±12 ±13 V
V
CM
Input Common-Mode ±16 +18 ±11 +14 V
Voltage Range −17 −12 V
CMRR Common-Mode R
S
≤ 10 kΩ 80 100 70 95 dB
Rejection Ratio
PSRR Supply Voltage See
(3)
80 100 70 90 dB
Rejection Ratio
I
S
Supply Current 0.6 0.8 0.6 1.0 mA
(3) Supply voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously in accordance with
common practice from ±15V to ±5V for the LF444 and from ±20V to ±5V for the LF444A.
AC Electrical Characteristics
(1)
Symbol Parameter Conditions LF444A LF444 Units
Min Typ Max Min Typ Max
Amplifier-to-Amplifier −120 −120 dB
Coupling
SR Slew Rate V
S
= ±15V, T
A
= 25°C 1 1 V/μs
GBW Gain-Bandwidth Product V
S
= ±15V, T
A
= 25°C 1 1 MHz
e
n
Equivalent Input Noise Voltage T
A
= 25°C, R
S
= 100Ω, 35 35 nV/√Hz
f = 1 kHz
i
n
Equivalent Input Noise Current T
A
= 25°C, f = 1 kHz 0.01 0.01 pA/√Hz
(1) Unless otherwise specified the specifications apply over the full temperature range and for V
S
= ±20V for the LF444A and for V
S
= ±15V
for the LF444. V
OS
, I
B
, and I
OS
are measured at V
CM
= 0.
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