Application Information

The devices have fixed dc voltage gains of 10, no external scaling resistors are required for the output. Output

voltage is simply defined as:

PCB trace shunt resistor for low cost solution

The figure below shows a PCB layout suggestion for a low cost solution where a PCB resistive trace in

replacement for a conventional shunt resistor, can be used. The resistor section is 25mm x 0.25mm giving

approximately 150m

Ω using 1 oz copper. Smaller resistances can be used if required.

Ω sense resistor

compared to SOT23 package.

Practical tolerance of the PCB resistor will be around 5% depending on

manufacturing methods.

ZXCT1021

SEMICO NDUC TORS

ISSUE 2 - MARCH 2004

5

GND

Load

N/C

GND

Load

4

1

2

3

5

Top view

PINOUT

PIN NAME

PIN FUNCTION

N/C

Not internally connected

GND

Ground

Voltage output referenced to GND. Intended to

drive high impedance loads

Load

High impedance negative sense voltage input

Supply and positive sense voltage input