LF412C
DUAL JFET INPUT OPERATIONAL AMPLIFIER
SLOS010B − MARCH 1987 − REVISED AUGUST 1994
D
Low Input Bias Current . . . 50 pA Typ
D
Low Input Noise Current
D
D
D
D
D
0.01 pA/√Hz Typ
Low Supply Current . . . 4.5 mA Typ
High Input impedance . . . 10
12
Ω
Typ
Internally Trimmed Offset Voltage
Wide Gain Bandwidth . . . 3 MHz Typ
High Slew Rate . . . 13 V/µs Typ
D OR P PACKAGE
(TOP VIEW)
1OUT
1IN −
1IN+
V
CC −
1
2
3
4
8
7
6
5
V
CC +
2OUT
2IN −
2IN +
description
This device is a low-cost, high-speed, JFET-input operational amplifier with very low input offset voltage and
a specified maximum input offset voltage drift. It requires low supply current yet maintains a large gain bandwidth
product and a fast slew rate. In addition, the matched high-voltage JFET input provides very low input bias and
offset currents.
The LF412C can be used in applications such as high-speed integrators, digital-to-analog converters,
sample-and-hold circuits, and many other circuits.
The LF412C is characterized for operation from 0°C to 70°C.
symbol (each amplifier)
IN −
IN +
−
OUT
+
AVAILABLE OPTIONS
TA
0°C to 70°C
VIOmax
AT 25°C
3 mV
PACKAGE
SMALL OUTLINE
(D)
LF412CD
PLASTIC DIP
(P)
LF412CP
Copyright
1994, Texas Instruments Incorporated
The D packages are available taped and reeled. Add the suffix R to the
device type (ie., LF412CDR).
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC +
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Supply voltage, V
CC −
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −18 V
Differential input voltage, V
ID
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
30 V
Input voltage, V
I
(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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
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