Data Sheet

ADG904/ADG904-R

Rev. C | Page 5 of 16

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

1

2

3

4

5

6

7

8

20

19

18

17

16

15

14

13

GND

RF1

GND

GND

RF3

GND

A0

A1

GND

RF2

GND

GND

RF4

GND

ADG904

ADG904-R

TOP VIEW

(Not to Scale)

EN

9

10

12

11

GND

RFC

GND

GND

14

13

12

1

3

4

RF2

GND

GND

11 RF4

GND

GND

2

RF1

GND

5

RF3

NOTES

1. THE EXPOSED PAD IS TIED

ADG904/ADG904-R

TOP VIEW

(Not to Scale)

Figure 5. 20-Lead TSSOP (RU-20)

Figure 6. 20-Lead 4 mm × 4mm LFCSP (CP-20-6)

Table 4. Pin Function Descriptions

Pin No.

20-Lead TSSOP

20-Lead LFCSP

Mnemonic

Function

1

18

EN

Active Low Digital Input. When high, the device is disabled and all switches

are off. When low, Ax logic inputs determine On switches.

2

19

Power Supply Input. These parts can be operated from 1.65 V to 2.75 V.

3, 5, 6, 8, 9, 11, 12,

13, 15, 16, 18

1, 3, 4, 6, 7, 9, 10,

12, 13, 15, 20

GND

Ground Reference Point for All Circuitry on the Part.

4

2

RF1

RF1 Port.

7

5

RF3

RF3 Port.

10

8

RFC

Common RF Port for Switch.

14

11

RF4

RF4 Port.

17

14

RF2

RF2 Port.

19

16

A1

Logic Control Input.

20

17

A0

Logic Control Input.

N/A

21

EPAD