Intersil Corporation HA5351 Datasheet

HA5351

Data Sheet May 1999

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 offersacombination
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 self­contained and requires no external components. The on­chip 15pF hold capacitor is completely isolated to minimizing
droop rate and reduce sensitivity to pedestal error. The
HA5351 is available in 8 lead PDIP and SOIC packages for
minimizing board space and ease of layout.

Ordering Information

PART NUMBER

(BRAND)

HA5351IP -40 to 85 8 Ld PDIP E8.3
HA5351IB

(H5351)

TEMP.

RANGE (oC) PACKAGE

-40 to 85 8 Ld SOIC M8.15

PKG.

NO.

Functional Diagram

V+ V-

63

15pF

8

-IN

+IN

+

G

1

M

-

A

V

-

+

4

OUT

File Number 3690.7

Features

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

• Low Offset Error. . . . . . . . . . . . . . . . . . . . . . . ±2mV (Max)

• Low Pedestal Error. . . . . . . . . . . . . . . . . . . . ±10mV (Max)

• Low Droop Rate . . . . . . . . . . . . . . . . . . . . . . 2µV/µs (Max)

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

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

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

-(V

IN

= 5V

at 1MHz)

P-P

• Fully Differential Inputs

• On Chip Hold Capacitor

Applications

• Synchronous Sampling

• Wide Bandwidth A/D Conversion

• Deglitching

• Peak Detection

• High Speed DC Restore

Pinout

HA5351

(PDIP, SOIC)

TOP VIEW)

+IN

NC

OUT

1
2
3

V-

4

8

-IN

7

GND

6

V+

5

S/H
CTRL

S/H

5

BUFFER

HA5351

7
GND

1

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

1-888-INTERSIL or 321-724-7143

| Copyright © Intersil Corporation 1999

HA5351

Absolute Maximum Ratings Thermal Information

Voltage Between V+ and V- Terminals. . . . . . . . . . . . . . . . . . . +11V

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V

Voltage Between Sample and Hold Control and Ground. . . . . +5.5V

Output Current, Continuous. . . . . . . . . . . . . . . . . . . . . . . . . . ±37mA

Operating Conditions

Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1. θJA is measured with the component mounted on an evaluation PC board in free air.

Thermal Resistance (Typical, Note 1) θJA (oC/W)

PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC

Maximum Storage Temperature Range. . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

(SOIC - Lead Tips Only)

Electrical Specifications Test Conditions: V

Non-Inverting Unity Gain Configuration (Output Tied to -Input), CL = 5pF,
Unless Otherwise Specified

PARAMETER TEST CONDITIONS

INPUT CHARACTERISTICS

Input Voltage Range Full -2.5 - +2.5 V
Input Resistance (Note 2) 25 100 500 - kΩ
Input Capacitance 25 - - 5 pF
Input Offset Voltage 25 -2 - 2 mV

Offset Voltage Temperature Coefficient Full - 15 - µV/
Bias Current Full - 2.5 5 µA
Offset Current Full -1.5 - +1.5 µA
Common Mode Range Full -2.5 - +2.5 V
Common Mode Rejection Ratio ±2.5V, Note 3 Full 60 80 - dB

TRANSFER CHARACTERISTICS

Large Signal Voltage Gain V

Unity Gain -3dB Bandwidth 25 - 40 - MHz

TRANSIENT RESPONSE

Rise Time 200mV Step 25 - 8.5 - ns
Overshoot 200mV Step 25 0 - 30 %
Slew Rate 5V Step Full 88 105 - V/µs

DIGITAL INPUT CHARACTERISTICS

Input Voltage V

Input Current V

OUTPUT CHARACTERISTICS

Output Voltage R
Output Current R

= ±2.5V 25 95 108 - dB

OUT

IH

V

IL

= 0V Full -1.0 - 1.0 µA

IL

= 5V Full -1.0 - 1.0 µA

V

IH

= 510Ω Full -3.0 - +3.0 V

L

= 100Ω 25, 85 20 25 - mA

L

= ±5V; CH = Internal = 15pF, Digital Input: VIL = fc0V (Sample), VIH = 4.0V (Hold).

SUPPLY

TEMP.

(oC)

Full -3.0 - 3.0 mV

Full 85 - - dB

25, 85 2.1 - 5.0 V

-40 2.4 - 5.0 V

Full 0 - 0.8 V

-40 15 - - mA

HA5351I

UNITSMIN TYP MAX

o

C

2

HA5351

Electrical Specifications Test Conditions: V

= ±5V; CH = Internal = 15pF, Digital Input: VIL = fc0V (Sample), VIH = 4.0V (Hold).

SUPPLY

Non-Inverting Unity Gain Configuration (Output Tied to -Input), CL = 5pF,
Unless Otherwise Specified (Continued)

HA5351I

UNITSMIN TYP MAX

PARAMETER TEST CONDITIONS

Full Power Bandwidth 5V

TEMP.

(oC)

, AV = +1, -3dB Full - 13 - MHz

P-P

Output Resistance Hold Mode 25 - 0.02 - Ω
Total Output Noise

(DC to 10MHz)

Sample Mode 25 - 325 - µV
Hold Mode 25 - 325 - µV

DISTORTION CHARACTERISTICS

SAMPLE MODE
Total Harmonic Distortion V

Signal to Noise Ratio

V
V
V

= 4.5V

IN

= 5V

IN

= 1V

IN

= 4.5V

IN

, fIN = 100kHz 25 - -80 - dBc

P-P

, fIN = 1MHz 25 - -74 - dBc

P-P

, fIN = 10MHz 25 - -57 - dBc

P-P

, fIN = 100kHz 25 - 73 - dB

P-P

(RMS Signal to RMS Noise)
HOLD MODE (50% Duty Cycle S/H)
Total Harmonic Distortion VIN = 4.5V

f

≅ 100kHz

S

V

= 5V

IN

f

≅ 1MHz

S

= 1V

V

IN

f

≅ 1MHz

S

Signal to Noise Ratio
(RMS Signal to RMS Noise)

= 4.5V

V

IN

f

≅ 100kHz

S

, fIN = 100kHz,

P-P

, fIN = 1MHz,

P-P

, fIN = 10MHz,

P-P

, fIN = 100kHz,

P-P

25 - -78 - dBc

25 - -72 - dBc

25 - -51 - dBc

25 - 70 - dB

SAMPLE AND HOLD CHARACTERISTICS

Acquisition Time 0V to 2.0V Step to ±1mV 25 - 53 - ns

0V to 2.0V Step to 0.01%

25 - 64 70 ns

(±200µV)

-2.5V to +2.5V Step to 0.01%

25 - 90 100 ns

(±500µV)

Droop Rate 25 - 0.3 - µV/µs

Full -2 - 2 µV/µs

Hold Step Error V

= 0V, VIH = 4.0V, tR = 5ns Full -10 - +10 mV

IL

Hold Mode Settling Time To ±1mV 25 - 50 - ns
Hold Mode Feedthrough 5V

, 500kHz, Sine 25 - 72 - dB

P-P

EADT (Effective Aperture Delay Time) 25 - +1 - ns
Aperture Time (Note 2) 25 - 10 - ns
Aperture Uncertainty 25 - 10 20 ps

POWER SUPPLY CHARACTERISTICS

Positive Supply Current Full - 20 22 mA
Negative Supply Current Full - 20 22 mA
PSRR 10% Delta Full 60 74 - dB

NOTES:

2. Derived from Computer Simulation only, not tested.

3. +CMRR is measured from 0V to +2.5V, -CMRR is measured from 0V to -2.5V.

RMS
RMS

3