AD582SD
ADI (亚德诺)
放大器、缓冲器
产品概述
采样&保持放大器 IC SAMPLE/HOLD AMP
Product Details
The AD582 is a sample-and-hold amplifier consisting of a high performance operational amplifier， a low leakage analog switch and_a JFET integrating amplifier – all fabricated on a single monolithic chip. An external holding capacitor， connected to the device， completes the sample-and-hold function.
With the analog switch closed， the AD582 functions like a standard op amp;_any feedback network may be connected around the device to control gain and_frequency response. With the switch open， the capacitor holds the output at its last level， regardless of input voltage.
Typical applications for the AD582 include sampled data systems， D/A deglitchers， analog de-multiplexers， auto null systems， strobed measurement systems and_A/D speed enhancement.
The device is available in two versions: the K specified for operation over the 0 to +70° commercial temperature range and_the S specified over the extended temperature range， -55°C to +125°C. All versions may be obtained in either the hermetic sealed， TO-100 can or the TO-116 DIP.
**Product Highlights**_
1. The specially designed input stage presents a high impedance to the signal source in both sample and_hold modes (up to ±12V). Even with signal levels up to ±VS， no undesirable signal inversion， peaking or loss of hold voltage occurs.
2. The AD582 may be connected in any standard op amp configuration to control gain or frequency response and_provide signal inversion， etc.
3. The AD582 offers a high， sample-to-hold current ratio: 107. The ratio of the available charging current to the holding leakage current is often used as a figure of merit for a sample and_hold circuit.
4. The AD582 has a typical charge transfer less than 2pC. A low charge transfer produces less offset error and_permits the use of smaller hold capacitors for faster signal acquisition.
5. The AD582 provides separate analaog and_digital grounds， thus improving the devices immunity to ground and_switching transients.
6. The AD582 is available in versions compliant with MIL-STD-883. Refer to the Analog Devices Military Products Databook or current AD582/883B data sheet for detailed specifications.
### Features and_Benefits
.Suitable for 12-bit applications.High sample/hold currrent ratio: 107.Low acquisition time:
6μ to 0.1%_
.Low charge transfer: <2pC.High input impedence in sample-and-hold modes.Connect in any op amp configuration.Differential logic inputs.MIL-STD-883 compliant versions available
