DP7172

2

SPI

INTERFACE

WIPER

REGISTER

CLK

A

B

W

SDI

GND

Figure 1. Functional Block Diagram

CS

Table 1. ORDERING INFORMATION

Part Number

Resistance

Temperature Range

Package

Shipping

DP7172TBI 50-GT3

50 k

40 C to 85 C

SOT 23 8

(Pb Free)

3000/Tape & Reel

DP7172TBI 00-GT3

100 k

3000/Tape & Reel

Table 2. PIN FUNCTION DESCRIPTION

Pin No.

Pin Name

Description

1

W

Resistor s Wiper Terminal.

2

Positive Power Supply.

3

GND

Digital Ground.

4

CLK

Serial Clock Input. Positive edge triggered.

5

SDI

Serial Data Input.

6

CS

Chip Select Input, Active Low. When CS returns high, data will be loaded into the DAC register.

7

B

Bottom Terminal of resistive element.

8

A

Top Terminal of resistive element.

Rating

Value

Unit

0.3 to 6.5

V

20

mA

Digital Inputs and Output Voltage to GND

0 to 6.5

V

Operating Temperature Range

40 to +85

C

150

C

Storage Temperature

65 to +150

C

Lead Temperature (Soldering, 10 sec)

300

C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. Maximum terminal current is bounded by the maximum current handling of the switches, maximum power dissipation of the package, and

maximum applied voltage across any two of the A, B, and W terminals at a given resistance.