LF255 datasheet, PDF - EEWORLD Datasheet

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LF255: DescriptionOP-AMP, 13000 uV OFFSET-MAX, 20 MHz BAND WIDTH, PDIP8; Categorysemiconductor Analog mixed-signal IC; File Size232KB，14 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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LF255 Overview

OP-AMP, 13000 uV OFFSET-MAX, 20 MHz BAND WIDTH, PDIP8

LF255 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	8
Maximum supply/operating voltage	18 V
Maximum operating temperature	70 Cel
Minimum operating temperature	0.0 Cel
Rated supply voltage	15 V
Maximum negative supply voltage	-18 V
Rated negative supply voltage	-15 V
Rated bandwidth	20 kHz
Rated rotation rate	50 V/us
Maximum input offset voltage	13000 mV
Processing package description	0.300 INCH, PLASTIC, DIP-8
state	ACTIVE
Craftsmanship	BIPOLAR
packaging shape	RECTANGULAR
Package Size	IN-LINE
Terminal form	THROUGH-HOLE
Terminal spacing	2.54 mm
terminal coating	TIN LEAD
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	COMMERCIAL
Amplifier type	OP-AMP
Rated common mode rejection ratio	100 dB
Maximum input bias current IIB	2.00E-4 uA

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LF155-LF255-LF355

LF156-LF256-LF356

LF157-LF257-LF357

WIDE BANDWIDTH

SINGLE J-FET OPERATIONAL AMPLIFIERS

HIGH INPUT IMPEDANCE J-FET INPUT

STAGE

HIGH SPEED J-FET OP-AMPs : up to 20MHz,

50V/µs

OFFSET VOLTAGE ADJUSTMENT DOES NOT

DEGRADE DRIFT OR COMMON-MODE

REJECTION AS IN MOST OF MONOLITHIC

AMPLIFIERS

INTERNAL COMPENSATION AND LARGE

DIFFERENTIAL INPUT VOLTAGECAPABILITY

(UP TO V

CC+

)

DIP8

(Plastic Package)

SO8

(Plastic Micropackage)

TYPICAL APPLICATIONS

PRECISION HIGH SPEED INTEGRATORS

FAST D/A AND CONVERTERS

HIGH IMPEDANCE BUFFERS

WIDEBAND, LOW NOISE, LOW DRIFT

AMPLIFIERS

LOGARITHIMIC AMPLIFIERS

PHOTOCELL AMPLIFIERS

SAMPLE AND HOLD CIRCUITS

ORDER CODES

Part Number

LF355, LF356, LF357

LF255, LF256, LF257

LF155, LF156, LF157

Example :

LF355N

Temperature

Range

C, +70

–40 C, +105 C

–55 C, +125 C

Package

•

PIN CONNECTIONS

(top view)

DESCRIPTION

These circuits are monolithic J-FET input operational

amplifiers incorporating well matched, high voltage

J-FET on the same chip with standard bipolar transis-

tors.

This amplifiers feature low input bias and offset cur-

rents, low input offset voltage and input offset voltage

drift,coupledwith offsetadjust which doesnot degrade

drift or common-mode rejection.

The devices are also designed for high slew rate, wide

bandwidth,extremelyfastsettlingtime, lowvoltageand

current noise and a low 1/f noise level.

July 1998

- Offset Null 1

- Inverting input

- Non-inverting input

- V

CC-

Offset Null 2

Output

N.C.

1/14

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