HA-2547-5 View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

HA-2547-5

100MHz, Two Quadrant, Current Output, Analog Multiplier

Intersil 

HA-2547

Test Circuits and Waveforms

VOUT

1

NC 2

NC 3

NC 4

VY+ 5

6

-15V 7

8

REF

X

50Ω

16 NC

15

14

13 VX+

12

11 +15V

10 NC

9 NC

FIGURE 1. AC AND TRANSIENT RESPONSE TEST CIRCUIT

+5V

IN 0V

-5V

100mV

OUT 0V

-100mV

2V

IN 0V

100mV

OUT 0V

Horizontal Scale: 20ns/Div.

VY TRANSIENT RESPONSE

Application Information

Theory of Operation

The HA-2547 is a current output, two quadrant multiplier with

one differential signal channel, VY+ and VY-, and one

differential control channel, VX+ and VX-. Figure 2 shows a

detailed functional block diagram of the HA-2547. The

differential voltages of channels VX and VY are converted to

differential currents. These differential currents are then

multiplied in a circuit similar to a Gilbert Cell multiplier,

producing a differential current product. The differential

product currents are then converted to a single-ended output

current which is typically 2mA, ±20% at full scale (VX = 2V,

VY = ±5V). A trimmed internal scaling resistor, RZ, is

designed to convert the output current to an accurate voltage

by grounding RZ (pin 10). RZ is trimmed such that at full scale

output current the voltage drop across RZ will be ±5.0V.

Horizontal Scale: 50ns/Div.

VX TRANSIENT RESPONSE

V+

V-

VYIOA

VYIOB

VY

+

VX

+

GA A

1.67K

GA B

GA C

STABLE

REFERENCE

AND BIAS

VREF

MULTIPLIER

CORE

+

IOUT

2.5K

RZ

FIGURE 2.

4

Share Link: