AD5121 datasheet(12/28 Pages) AD

12 / 28 page

AD5123/AD5143

Data Sheet

Rev. A | Page 12 of 28

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

NOTES

1. INTERNALLY CONNECT THE

EXPOSED PAD TO VSS.

AD5123/

AD5143

TOP VIEW

(Not to Scale)

PIN 1

INDICATOR

11 B4

12 VDD

10 W4

Figure 4. Pin Configuration

Table 7. Pin Function Descriptions

Pin No.

Mnemonic

Description

Terminal A of RDAC1. VSS ≤ VA ≤ VDD.

Wiper Terminal of RDAC1. VSS ≤ VW ≤ VDD.

Terminal B of RDAC1. VSS ≤ VB ≤ VDD.

Wiper Terminal of RDAC3. VSS ≤ VW ≤ VDD.

Terminal B of RDAC3. VSS ≤ VB ≤ VDD.

VSS

Negative Power Supply. Decouple this pin with 0.1 µF ceramic capacitors and 10 µF capacitors.

Terminal A of RDAC2. VSS ≤ VA ≤ VDD.

Wiper Terminal of RDAC2. VSS ≤ VW ≤ VDD.

Terminal B of RDAC2. VSS ≤ VB ≤ VDD.

Wiper Terminal of RDAC4. VSS ≤ VW ≤ VDD.

Terminal B of RDAC4. VSS ≤ VB ≤ VDD.

VDD

Positive Power Supply. Decouple this pin with 0.1 µF ceramic capacitors and 10 µF capacitors.

SCL

Serial Clock Line. Data is clocked in at the logic low transition.

SDA

Serial Data Input/Output.

ADDR

Programmable Address for Multiple Package Decoding.

GND

Ground Pin, Logic Ground Reference.

EPAD

Internally Connect the Exposed Paddle to VSS.

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