LF357

® 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 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, lowvoltageand 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...