HA4P2425-5 Intersil Corporation, HA4P2425-5 Datasheet

HA4P2425-5

Manufacturer Part Number

HA4P2425-5

Description

3.2s Sample and Hold Amplifiers

Manufacturer

Intersil Corporation

Datasheet

1.HA4P2425-5.pdf (9 pages)

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November 1996

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

Features

• Maximum Acquisition Time

• Low Droop Rate (C

• Gain Bandwidth Product . . . . . . . . . . . . . 2.5MHz (Typ)

• Low Effective Aperture Delay Time . . . . . . . 30ns (Typ)

• TTL Compatible Control Input

•

Applications

• 12-Bit Data Acquisition

• Digital to Analog Deglitcher

• Auto Zero Systems

• Peak Detector

• Gated Operational Ampliﬁer

Ordering Information

Pinouts

HA1-2420-2

HA1-2425-5

HA3-2425-5

HA4P2425-5

HA9P2425-5

PART NUMBER

- 10V Step to 0.1%. . . . . . . . . . . . . . . . . . . . . 4 s (Max)

- 10V Step to 0.01%. . . . . . . . . . . . . . . . . . . . 6 s (Max)

12V to 15V Operation

OFFSET ADJ.

OUTPUT

HA-2425 (CERDIP, PDIP, SOIC)

+IN

-IN

V-

RANGE (

-55 to 125

HA-2420 (CERDIP)

TEMP.

0 to 75

= 1000pF). . . . . . . . 5 V/ms (Typ)

TOP VIEW

14 Ld CERDIP

14 Ld PDIP

20 Ld PLCC

14 Ld SOIC

PACKAGE

S/H CONTROL

GND

HOLD CAP.

V+

HA-2420, HA-2425

F14.3

E14.3

N20.35

M14.15

PKG.

NO.

5-1

Description

The HA-2420 and HA-2425 is a monolithic circuit consisting

of a high performance operational ampliﬁer with its output in

series with an ultra-low leakage analog switch and JFET

input unity gain ampliﬁer.

With an external hold capacitor connected to the switch output,

a versatile, high performance sample-and-hold or track-and-

hold circuit is formed. When the switch is closed, the device

behaves as an operational ampliﬁer, and any of the standard op

amp feedback networks may be connected around the device

to control gain, frequency response, etc. When the switch is

opened the output will remain at its last level.

Performance as a sample-and-hold compares very favorably

with other monolithic, hybrid, modular, and discrete circuits.

Accuracy to better than 0.01% is achievable over the

temperature range. Fast acquisition is coupled with superior

droop characteristics, even at high temperatures. High slew

rate, wide bandwidth, and low acquisition time produce

excellent dynamic characteristics. The ability to operate at

gains greater than 1 frequently eliminates the need for

external scaling ampliﬁers.

The device may also be used as a versatile operational

ampliﬁer with a gated output for applications such as analog

switches, peak holding circuits, etc. For more information,

please see Application Note AN517.

The MIL-STD-883 data sheet for this device is available on

request.

OFFSET ADJ.

3.2 s Sample and Hold Ampliﬁers

V-

TOP VIEW

HA-2425

10 11 12 13

(PLCC)

File Number

HOLD CAP.

2856.2

Related parts for HA4P2425-5

HA4P2425-5 Summary of contents

Page 1

... Gated Operational Ampliﬁer Ordering Information TEMP. o PART NUMBER RANGE ( C) HA1-2420-2 -55 to 125 14 Ld CERDIP HA1-2425 CERDIP HA3-2425 PDIP HA4P2425 PLCC HA9P2425 SOIC Pinouts HA-2420 (CERDIP) HA-2425 (CERDIP, PDIP, SOIC) TOP VIEW -IN 1 +IN 2 OFFSET ADJ. 3 OFFSET ADJ ...

Page 2

Absolute Maximum Ratings Voltage Between V+ and V- Terminals . . . . . . . . . . . . . . . . . . . . 40V Differential Input Voltage ...

Page 3

... Hold Step Error V Hold Mode Settling Time To 1mV Aperture Time (Note 3) Effective Aperture Delay Time Aperture Uncertainty Drift Current (Note 2) V HA1-2420 HA1-2425 HA3-2425, HA4P2425, HA9P2425 POWER SUPPLY CHARACTERISTICS Supply Current (+) Supply Current (-) Power Supply Rejection NOTES 50pF. V ...

Page 4

Test Circuits and Waveforms S/H CONTROL OUTPUT t NOTE: Measure the slope of the output during hold and compute drift current from: I FIGURE 3. DRIFT CURRENT TEST Schematic Diagram ...

Page 5

Application Information HOLD STEP VOLTAGE (mV) + INPUT VOLTAGE (V) -5 -10 -15 -20 -25 -30 -35 FIGURE 5. HOLD STEP vs INPUT VOLTAGE Offset Adjustment The offset voltage of the HA-2420 and HA-2425 ...

Page 6

Glossary of Terms Acquisition Time The time required following a “sample” command, for the output to reach its ﬁnal value within 0.1% or 0.01%. This is the mini- mum sample time required to obtain a given accuracy, and includes switch ...

Page 7

Typical Performance Curves - 1000pF H -40 -50 -60 -70 -80 -90 100 1K 10K 100K 10V SINUSOIDAL INPUT FREQUENCY (Hz) FIGURE 14. HOLD MODE FEED THROUGH ATTENUATION S/H (5V/DIV OUT (2V/DIV.) -10V TIME (1 s/DIV.) ...

Page 8

Typical Performance Curves S/H (5V/DIV OUT (50mV/DIV.) -0.1V TIME (500ns/DIV.) FIGURE 20. ACQUISITION TIME (C HA-2420, HA-2425 (Continued) S/H (5V/DIV.) 0. OUT (50mV/DIV.) = 1000pF) FIGURE 21. ACQUISITION TIME (C H 5-8 TIME (500ns/DIV.) = 1000pF) ...

Page 9

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certiﬁcation. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or speciﬁcations at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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