Analog Devices AD585
The AD585 is a complete monolithic sample-and-hold circuit consisting of a high performance operational amplifier in series with an ultralow leakage analog switch and a FET input integrating amplifier. The performance of the AD585 makes it ideal for high speed 10- and 12-bit data acquisition systems, where fast acquisition time, low sample-to-hold offset, and low droop are critical. The AD585 can acquire a signal to ± 0.01% in 3 µs maximum, and then hold that signal with a maximum sample-to-hold offset of 3 mV and less than 1 mV/ms droop, using the on-chip hold capacitor.| Part No. | AD585 |
|---|---|
| Datasheet | AD585 Download |
| Manufacturer |  Analog Devices |
| Description | High Speed/ Precision Sample-and-Hold Amplifier |
| Buy | Stock & Price |
FEATURES
3.0● s Acquisition Time to ؎0.01% max Low Droop Rate: 1.0 mV/ms max Sample/Hold Offset Step: 3 mV max Aperture Jitter: 0.5 ns Extended Temperature Range: –55؇ C to +125؇ C Internal Hold Capacitor Internal Application Resistors ؎12 V or ؎15 V Operation Available in Surface Mount
APPLICATIONS
Data Acquisition Systems Data Distribution Systems Analog Delay & Storage Peak Amplitude Measurements MIL-STD-883 Compliant Versions Available PRODUCTDESCRIPTION
High Speed, Precision Sample-and-Hold Amplifier AD585 FUNCTIONAL BLOCK DIAGRAM DIP LCC/PLCC Package An internal holding capacitor and matched applications resistors have been provided for high precision and applications flexibility. If lower droop is required, it is possible to add a larger external hold capacitor. The high speed analog switch used in the AD585 exhibits aperture jitter of 0.5 ns, enabling the device to sample full scale (20 V peak-to-peak) signals at frequencies up to 78 kHz with 12-bit precision. The AD585 can be used with any user-defined feedback network to provide any desired gain in the sample mode.
