HA5320

HA5320/883 July 1994 High Speed Precision Sample and Hold Amplifier Description The HA-5320/883 was designed for use in precision, high speed data acquisition systems. The circuit consists of an input transconductance amplifier capable of providing large amounts of charging current, a low leakage analog switch, and an output integrating amplifier. The analog switch sees virtual ground as its load; therefore, charge injection on the hold capacitor is constant over the entire input/ output voltage range. The pedestal voltage resulting from this charge injection can be adjusted to zero by use of the offset adjust inputs. The device includes a hold capacitor. However, if improved droop rate is required at the expense of acquisition time, additional hold capacitance may be added externally. This monolithic device is manufactured using the Intersil Dielectric Isolation Process, minimizing stray capacitance and eliminating SCR’s. This allows higher speed and latch-free operation. For further information, please see Application Note AN538. Features • This Circuit is Processed in Accordance to MIL-STD883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1. • Gain, DC . . . . . . . . . . . . . . . . . . . . . . . . 2 x 106 V/V (Typ) • Acquisition Time . . . . . . . . . . . . . . . 1.0µs (0.01%) (Typ) • Droop Rate . . . . . . . . . . . . . . . . 0.08µV/µs (+25oC) (Typ) 17µV/µs (Full Temperature) (Typ) • • • • • Aperture Time. . . . . . . . . . . . . . . . . . . . . . . . . 25ns (Typ) Hold Step Error . . . . . . . . . . . . . . . . . . . . . . 1.0mV (Typ) Internal Hold Capacitor Fully Differential Input TTL Compatible Applications • • • • • High Bandwidth Precision Data Acquisition Systems Inertial Navigation and Guidance Systems Ultrasonics SONAR / RADAR Digital to Analog Converter Deglitcher Pinouts HA-5320/883 (CERDIP) TOP VIEW -INPUT 1 +INPUT 2 OFFSET ADJ 3 OFFSET ADJ 4 V- 5 SIG GND 6 OUTPUT 7 14 S/H CONTROL 13 SUPPLY GND 12 NC 11 CEXT 10 NC 9 V+ 8 INT. BW Ordering Information PART NUMBER HA1-5320/883 HA4-5320/883 TEMPERATURE RANGE -55oC to +125oC -55oC to +125oC PACKAGE 14 Lead CerDIP 20 Lead Ceramic LCC Functional Diagram OFFSET ADJUST 3 4 V+ 9 HA-5320/883 (CLCC) TOP VIEW NC S/H CNTL SUPPLY GND -INPUT 1 +INPUT 2 HA-5320/883 100pF + - +IN 3 OFFSET ADJ NC OFFSET ADJ NC 4 5 6 7 -IN 7 OUTPUT 2 1 20 19 18 NC 17 NC 16 CEXT 15 NC 14 NC 13 SUPPLY GND 5 V6 SIG GND 11 CEXT 8 INTEGRATOR BANDWIDTH S/H CONTROL 14 V- 8 9 10 11 12 13 SIG GND OUTPUT NC INT. BW V+ CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 7-3 Spec Number 511096-883 File Number 2927.3 Specifications HA-5320/883 Absolute Maximum Ratings Voltage Between V+ and V- Terminals . . . . . . . . . . . . . . . . . . . . 40V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V Digital Input Voltage (S/H Pin) . . . . . . . . . . . . . . . . . . . . . .+8V, -15V Output Current, Continuous (Note 1) . . . . . . . . . . . . . . . . . . . . . ±20mA Storage Temperature Range . . . . . . . . . . . . . . . . . -65oC to +150oC Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . . +300oC ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .