1

®

FN3690.10

HA5351

64ns Sample and Hold Amplifier

The HA5351 is a fast acquisition, wide bandwidth sample

and hold amplifier, built with the Intersil HBC-10 BiCMOS

process. This sample and hold amplifier offers a combination

of desirable features; fast acquisition time (70ns to 0.01%

maximum), excellent DC precision and extremely low power

dissipation, making it ideal for use in systems that sample

multiple signals and require low power.

The HA5351 is in an open loop configuration with fully

differential inputs providing flexibility for user defined

feedback. In unity gain the HA5351 is completely self-contained

and requires no external components. The on-chip 15pF

hold capacitor is completely isolated to minimizing droop

rate and reducing sensitivity to pedestal error. The HA5351

is available in 8 lead SOIC package for minimizing board

space and ease of layout.

Functional Diagram

Features

• Fast Acquisition to 0.01%. . . . . . . . . . . . . . . . . 70ns (Max)

• Low Offset Error . . . . . . . . . . . . . . . . . . . . . . .

±2mV (Max)

• Low Pedestal Error. . . . . . . . . . . . . . . . . . . .

±10mV (Max)

• Low Droop Rate . . . . . . . . . . . . . . . . . . . . . . 2

μV/μs (Max)

• Wide Unity Gain Bandwidth . . . . . . . . . . . . . . . . . . 40MHz

• Low Power Dissipation . . . . . . . . . . . . . . . .220mW (Max)

• Total Harmonic Distortion (Hold Mode) . . . . . . . . . -72dBc

• Fully Differential Inputs

• On Chip Hold Capacitor

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Synchronous Sampling

• Wide Bandwidth A/D Conversion

• Deglitching

• Peak Detection

• High Speed DC Restore

Pinout

HA5351

(8 LD SOIC)

TOP VIEW

Ordering Information

PART

NUMBER

PART

MARKING

TEMP.

RANGE (°C)

PACKAGE

PKG.

DWG. #

HA5351IB

5351 I

-40 to +85

8 Ld SOIC

M8.15

HA5351IBZ

(Note)

5351 IBZ

-40 to +85

8 Ld SOIC

(Pb-free)

M8.15

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020.

HA5351

BUFFER

+

8

1

5

-IN

+IN

S/H

OUT

15pF

4

63

V+

V-

7

GND

-

-

+

+IN

NC

V-

OUT

1

2

3

4

8

7

6

5

-IN

GND

V+

S/H

CTRL

Data Sheet

April 12, 2007

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

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