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LF155-LF255-LF355 LF156-LF256-LF356 LF157-LF257-LF357 WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
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LF155-LF255-LF355 LF156-LF256-LF356 LF157-LF257-LF357 WIDE BANDWIDTH SINGLE J-FET OPERATIONAL
AMPLIFIERS
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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 VCC+)
N DIP8 (Plastic Package)
D 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 0 C, +70 C –40oC, +105oC –55 C, +125 C
o o o o
Package N D
PIN CONNECTIONS (top view)
1
DESCRIPTION These circuits are monolithic J-FET input operational
amplifiers incorporating well matched, high
voltage J-FET on the same chip with standard bipolar transistors. This
amplifiers feature low input bias and offset currents, 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, low
voltageand current noise and a low 1/f noise level.
July 1998
8 7 6 5
1 2 3 4 - Offset Null 1 - Inverting input - Non-inverting inp...