(China (Mainland))
Product Summary
The LF198H/883 is a monolithic sample-and-hold circuit which utilizes BI-FET technology to obtain ultra-high dc accuracy with fast acquisition of signal and low droop rate. Operating as a unity gain follower, dc gain accuracy is 0.002% typical and acquisition time is as low as 6 μs to 0.01%. A bipolar input stage is used to achieve low offset voltage and wide bandwidth. Input offset adjust is accomplished with a single pin, and does not degrade input offset drift. The wide bandwidth allows the LF198H/883 tobe included inside the feedback loop of 1 MHz op amps without having stability problems.
Parametrics
LF198H/883 absolute maximum ratings: (1)Supply Voltage: ±18V; (2)Power Dissipation: 500 mW; (3)Storage Temperature Range: -65 to +150°C; (4)Output Short Circuit Duration: Indefinite; (5)Logic To Logic Reference, Differential Voltage (Note 3): +7V, -30V.
Features
LF198H/883 features: (1)Operates from ±5V to ±18V supplies; (2)Less than 10 μs acquisition time; (3)TTL, PMOS, CMOS compatible logic input; (4)Low input offset; (5)0.002% gain accuracy; (6)Low output noise in hold mode; (7)Input characteristics do not change during hold mode; (8)High supply rejection ratio in sample or hold; (9)Wide bandwidth.
Diagrams
