LF412C DUAL JFET-INPUT OPERATIONAL AMPLIFIER
SLOS010B ± MARCH 1987 ± REVISED AUGUST 1994
D D
D D D D D
Low Input Bias Current . . . 50 pA Typ |
D OR P PACKAGE |
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Low Input Noise Current |
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(TOP VIEW) |
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0.01 pA/√ |
Hz |
Typ |
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1OUT |
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1 |
8 |
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VCC + |
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Low Supply Current . . . 4.5 mA Typ |
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1IN ± |
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2 |
7 |
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2OUT |
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High Input impedance . . . 1012 Ω Typ |
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2IN± |
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1IN+ |
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3 |
6 |
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Internally Trimmed Offset Voltage |
VCC ± |
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4 |
5 |
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2IN+ |
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Wide Gain Bandwidth |
3 MHz Typ |
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High Slew Rate . . . |
13 V/μs Typ |
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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
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VIOmax |
PACKAGE |
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TA |
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SMALL OUTLINE |
PLASTIC DIP |
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AT 25°C |
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(D) |
(P) |
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0°C to 70°C |
3 mV |
LF412CD |
LF412CP |
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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, VCC + . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . 18 |
V |
Supply voltage, VCC ± . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . ±18 V |
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Differential input voltage, VID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . ± 30 |
V |
Input voltage, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . ± 15 |
V |
Duration of output short circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . unlimited |
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Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . 500 mW |
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Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . 0°C to 70°C |
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Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
±65°C to 150°C |
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Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . 260°C |
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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.
Copyright 1994, Texas Instruments Incorporated
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
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