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AD781

Analog Devices
Part Number AD781
Manufacturer Analog Devices
Description Complete 700 ns Sample-and-Hold Amplifier
Published Mar 23, 2005
Detailed Description a FEATURES Acquisition Time to 0.01%: 700 ns Maximum Low Power Dissipation: 95 mW Low Droop Rate: 0.01 ␮ V/␮s Fully Spec...
Datasheet PDF File AD781 PDF File

AD781
AD781


Overview
a FEATURES Acquisition Time to 0.
01%: 700 ns Maximum Low Power Dissipation: 95 mW Low Droop Rate: 0.
01 ␮ V/␮s Fully Specified and Tested Hold Mode Distortion Total Harmonic Distortion: –80 dB Maximum Aperture Jitter: 75 ps Maximum Internal Hold Capacitor Self-Correcting Architecture 8-Pin Mini Cerdip and Plastic Package MIL-STD-883 Compliant Versions Available Complete 700 ns Sample-and-Hold Amplifier AD781* FUNCTIONAL BLOCK DIAGRAM VCC IN COMMON NC 1 2 X1 3 4 6 NC VEE 8 7 OUT S/H AD781 5 PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS The AD781 is a high speed monolithic sample-and-hold amplifier (SHA).
The AD781 guarantees a maximum acquisition time of 700 ns to 0.
01% over temperature.
The AD781 is specified and tested for hold mode total harmonic distortion and hold mode signal-to-noise and distortion.
The AD781 is configured as a unity gain amplifier and uses a self-correcting architecture that minimizes hold mode errors and insures accuracy over temperature.
The AD781 is self-contained and requires no external components or adjustments.
The low power dissipation, 8-pin mini-DIP package and completeness make the AD781 ideal for highly compact board layouts.
The AD781 will acquire a full-scale input in less than 700 ns and retain the held value with a droop rate of 0.
01 µV/µs.
Excellent linearity and hold mode dc and dynamic performance make the AD781 ideal for 12- and 14-bit high speed analogto-digital converters.
The AD781 is manufactured on Analog Devices’ BiMOS process which merges high performance, low noise bipolar circuitry with low power CMOS to provide an accurate, high speed, low power SHA.
The AD781 is specified for three temperature ranges.
The J grade device is specified for operation from 0°C to +70°C, the A grade from –40°C to +85°C and the S grade from –55°C to +125°C.
The J and A grades are available in 8-pin plastic DIP packages.
The S grade is available in an 8-pin cerdip package.
*Protected by U.
S.
Patent No.
4,962,325.
1.
Fast acquisition time ...


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