1

File Number

2857.4

HA-5320

1 Microsecond Precision Sample and

Hold Amplifier

The HA-5320 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 SCRs. This allows higher speed and latch-

free operation. For further information, please see

Application Note AN538.

Pinouts

HA-5320

(PDIP, CERDIP)

TOP VIEW

HA-5320

(SOIC)

TOP VIEW

Features

• Acquisition Time . . . . . . . . . . . . . . . . . . . . . 1.0

µs (0.01%)

• Droop Rate . . . . . . . . . . . . . . . . . . . . . . 0.08

17

µV/µs (Full Temperature)

• Aperture Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25ns

• Hold Step Error (See Glossary) . . . . . . . . . . . . . . . . . 5mV

• Internal Hold Capacitor

• Fully Differential Input

• TTL Compatible

Applications

• Precision Data Acquisition Systems

• Digital to Analog Converter Deglitcher

• Auto Zero Circuits

• Peak Detector

Functional Diagram

-INPUT

+INPUT

OFFSET ADJUST

OFFSET ADJUST

V-

SIG. GND

OUTPUT

S/H CONTROL

SUPPLY GND

NC

NC

V+

INTEGRATOR

1

2

3

4

5

6

7

14

13

12

11

10

9

8

BANDWIDTH

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

-INPUT

+INPUT

OFFSET ADJUST

OFFSET ADJUST

V-

SIG. GND

NC

OUTPUT

S/H CONTROL

NC

NC

V+

INTEGRATOR

NC

SUPPLY GND

BANDWIDTH

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

HA1-5320-2

-55 to 25

14 Ld CERDIP

F14.3

HA1-5320-5

0 to 75

14 Ld CERDIP

F14.3

HA3-5320-5

0 to 75

14 Ld PDIP

E14.3

HA9P5320-5

0 to 75

16 Ld SOIC

M16.3

HA9P5320-9

-40 to 85

16 Ld SOIC

M16.3

+

9

100pF

OFFSET

ADJUST

3

4

V+

OUTPUT

HA-5320

-INPUT

+INPUT

1

2

CONTROL

S/H

SUPPLY

GND

V-

SIG.

GND

INTEGRATOR

BANDWIDTH

14

-

13

5

6

8

11

7

Data Sheet

April 1999

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143