SHC5320

Voltage Between +VCC and VCC Terminals ......................................... 40V
Input Voltage ........................................................... Actual Supply Voltage
Differential Input Voltage ................................................................... ±24V
Digital Input Voltage .................................................................. +15V, 1V
Output Current, continuous(2) ......................................................... ±20mA
Internal Power Dissipation ............................................................. 450mW
Storage Temperature Range .................................... 65°C < TA < +150°C
Output Short-Circuit Duration(3) ......................................................... None
Lead Temperature (soldering, 10s) ................................................. 300°C
CAUTION: These devices are sensitive to electrostatic discharge.Appropriate I.C. handling procedures should be followed.

NOTES: (1) Absolute maximum ratings are limiting values, applied individually,beyond which the serviceability of the circuit may be impaired. Functional operation under any of these conditions is not necessarily implied. Absolute maximum ratings apply to both dice and package parts, unless otherwise noted.
(2) Internal power dissipation may limit output current to less than +20mA.
(3)WARNING: This device cannot withstand even a momentary short circuit
to either supply.

The SHC5320 is a bipolar, monolithic, sample/hold circuit designed for use in precision, high-speed, dataacquisition applications.

The SHC5320 circuit employs an input transconductance amplifier capable of providing large amounts of charging current to the holding capacitor, thus enabling fast acquisition times. It also incorporates a low leakage analog switch and an output integrating amplifier with input bias current optimized to assure low droop rates.

Since the analog switch always drives into a load at virtual ground, charge injection into the holding capacitor is constant over the entire input voltage range.As a result, the charge offset (pedestal voltage) resulting from this charge injection can be adjusted to zero by use of the offset adjustment capability. The SHC5320 includes an internal holding capacitor to simplify ease of application; however, provision is also made to add additional external capacitance to improve the output voltage droop rate.

The SHC5320 is manufactured using a dielectric isolation process which minimizes stray capacitance (enabling higher-speed operation), and eliminates latchup associated with substrate SCRs. The SHC5320KH,KP, and KU feature fully specified operation over the extended industrial temperature range of 40°C to +85°C, while the SHC5320SH operates over the temperature range of 55°C to +125°C. The device requires ±15V supplies for operation, and is packaged in a reliable 14-pin ceramic or plastic dual-in-line package,as well as a 16-pin surface mount plastic package.