LF412C

DUAL JFET INPUT OPERATIONAL AMPLIFIER

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 ...1012 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

VIOmax

PACKAGE

TA

VIOmax

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, VCC+

18 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply voltage, VCC−

−18 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Differential input voltage, VID

±30 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, VI (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

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.

1

2

3

4

8

7

6

5

1OUT

1IN −

1IN+

VCC−

VCC+

2OUT

2IN −

2IN +

(TOP VIEW)

D OR P PACKAGE