ADGS1408/ADGS1409

Data Sheet

Rev. 0 | Page 14 of 34

2

1

3

4

5

6

18

17

16

15

14

13

GPO3

S3A

GND

S2A

S1A

NOTES

1. THE EXPOSED PAD IS CONNECTED INTERNALLY.

FOR INCREASED RELIABILITY OF THE SOLDER JOINTS

AND MAXIMUM THERMAL CAPABILITY, IT IS RECOMMENDED

S3B

S2B

CNV

S1B

ADGS1409

TOP VIEW

(Not to Scale)

Figure 8. ADGS1409 Pin Configuration

Table 10. ADGS1409 Pin Function Descriptions

Pin No.

Mnemonic

Description

1

Most Negative Power Supply Potential. In single-supply applications, tie this pin to ground.

2

S1A

Source Terminal 1A. This pin can be an input or output.

3

S2A

Source Terminal 2A. This pin can be an input or output.

4

GND

Ground (0 V) Reference.

5

S3A

Source Terminal 3A. This pin can be an input or output.

6

GPO3

General-Purpose Output 3. This pin is a digital output.

7

S4A

Source Terminal 4A. This pin can be an input or output.

8

GPO4

General-Purpose Output 4. This pin is a digital output.

9

DA

Drain Terminal A. This pin can be an input or output.

10

DB

Drain Terminal B. This pin can be an input or output.

11

GPO5

General-Purpose Output 5. This pin is a digital output.

12

S4B

Source Terminal 4B. This pin can be an input or output.

13

S3B

Source Terminal 3B. This pin can be an input or output.

14

registers are set to their default.

15

S2B

Source Terminal 2B. This pin can be an input or output.

16

CNV

Convert Digital Input. When in round robin mode, the CNV pin is used to cycle through the selected channels.

17

S1B

Source Terminal 1B. This pin can be an input or output.

18

Most Positive Power Supply Potential.

19

GPO1

General-Purpose Output 1. This pin is a digital output.

20

SDO

Serial Data Output. This pin can be used for daisy chaining a number of these devices together or for reading

back the data stored in a register for diagnostic purposes. The serial data is propagated on the falling edge of

21

CS

Active Low Control Input. CS is the frame synchronization signal for the input data.

22

SCLK

Serial Clock Input. Data is captured on the positive edge of SCLK. Data can be transferred at rates of up to 50 MHz.

23

SDI

Serial Data Input. Data is captured on the positive edge of the serial clock input.

24

GPO2

General-Purpose Output 2. This pin is a digital output.

EPAD

Exposed Pad. The exposed pad is connected internally. For increased reliability of the solder joints and