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ꢆꢇꢈ ꢀ ꢉ ꢁ ꢊꢋꢌꢍ ꢎꢏꢇꢋ ꢐ ꢏꢊꢑ ꢈꢋ ꢍꢐ ꢎꢈꢀ ꢈꢒ ꢏ ꢀꢍ ꢁꢍ ꢊꢑ
SLOS010B − MARCH 1987 − REVISED AUGUST 1994
D OR P PACKAGE
(TOP VIEW)
D
D
D
D
D
D
D
Low Input Bias Current . . . 50 pA Typ
Low Input Noise Current
0.01 pA/√Hz Typ
Low Supply Current . . . 4.5 mA Typ
1OUT
1IN −
1IN+
1
2
3
4
8
7
6
5
V
CC+
2OUT
2IN−
2IN+
12
High Input impedance . . . 10 Ω Typ
V
CC−
Internally Trimmed Offset Voltage
Wide Gain Bandwidth . . . 3 MHz Typ
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
PACKAGE
V
IO
max
T
A
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
AT 25°C
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
Supply voltage, V
Differential input voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −18 V
CC+
CC−
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V
ID
Input voltage, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V
I
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.
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Copyright 1994, Texas Instruments Incorporated
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1
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