Description
The LF6197 is a monolithic sample-and-hold (S H) amplifier that uses a proprietary ‘‘current-multiplexed sample-andhold’’ technique to offer extremely high speed while maintaining 12 bits or higher accuracy The device is built using National’s advanced junction-isolated VIPTM (Vertically Integrated PNP) and BI-FETTM process technologies The LF6197 acquires a 10V step input to within g0 01% in 160 ns and has 10 mV hold step error when going from sample to hold mode The input offset voltage in the
Features
- Y Operates with supply voltages from g5V to g18V Y CMOS TTL and ECL compatible logic input Y Adjustable inverting or non-inverting gain Y Internal hold capacitor Y High power-supply rejection in both sample and hold
modes
Key Specifications
Y Acquisition time (10V step to 0 01%)
160 ns
Y Hold mode settling time (10V step to 0 01%)
50 ns
Y Droop rate
0 6 mV ms
Y Hold step
10 mV
Y Aperture jitter Y Feedthrough attenuation at DC
8 psrms 83 dB
Y Small signal bandwidth
25 MHz
Applicatio.
LF6197-NationalSemiconductor.pdf
