Datasheet


   
SLOS010B − MARCH 1987 − REVISED AUGUST 1994
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
D Low Input Bias Current...50 pA Typ
D Low Input Noise Current
0.01 pA/√Hz
Typ
D Low Supply Current . . . 4.5 mA Typ
D High Input impedance ...10
12
Ω Typ
D Internally Trimmed Offset Voltage
D Wide Gain Bandwidth ...3 MHz Typ
D High Slew Rate . . . 13 V/µs Typ
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 −
OUT
IN +
AVAILABLE OPTIONS
V
IO
max
PACKAGE
T
A
V
IO
max
AT 25°C
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
0°C to 70°C 3 mV LF412CD LF412CP
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.
Copyright  1994, Texas Instruments Incorporated
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1
2
3
4
8
7
6
5
1OUT
1IN −
1IN+
V
CC−
V
CC+
2OUT
2IN−
2IN+
(TOP VIEW)
D OR P PACKAGE