6

FN6127.0

August 16, 2005

NOTES:

incremental voltage when changing from one tap to an adjacent tap.

7.

for i = 16 to 120 decimal, Max( ) is the maximum value of the wiper voltage and Min ( ) is the minimum value of the wiper voltage over the

temperature range.

8. MI =

12.

for i = 16 to 127, Max( ) is the maximum value of the resistance and Min ( ) is the minimum value of the resistance over the temperature range.

13. This parameter is not 100% tested.

Test Circuit

Equivalent Circuit

Pin Descriptions

Potentiometer Pins

equivalent to the fixed terminals of a mechanical

relative position of the terminal in relation to wiper movement

potential on the terminal.

R

W

terminal of a mechanical potentiometer. The position of the

wiper within the array is determined by the control inputs.

BUS INTERFACE PINS

Serial Data Input/Output (SDA)

The SDA is a bidirectional serial data input/output pin for the

device at the rising edge of the serial clock SCL, and it shifts

out data after each falling edge of the serial clock SCL.

SDA requires an external pull-up resistor, since it’s an open

drain output.

Serial Clock (SCL)

Device Address (A1-A0)

The Address inputs are used to set the least significant 2 bits

address serial data stream must be made with the Address

input pins in order to initiate communication with the

ISL23711. A maximum of 4 ISL23711 devices may occupy

Principles of Operation

The ISL23711 is an integrated circuit incorporating one DCP

providing direct communication between a host and the

potentiometer and memory. The resistor array is comprised

Max V RW

()

i

() Min V RW

()

i

()

–

Max V RW

()

i

() Min V RW

()

i

()

+

[] 2

⁄

----------------------------------------------------------------------------------------------

125°C

-----------------

×

=

Max Ri

() Min Ri

()

–

[]

Max Ri

() Min Ri

()

+

[] 2

⁄

----------------------------------------------------------------

10

6

125°C

-----------------

×

=

FORCE

CURRENT

TEST POINT

ISL23711