Data Sheet

AD8194

Rev. A | Page 5 of 16

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

IN_A2

IP_A2

VTTI

IN_A3

IP_A3

AVCC

OP3

ON3

IP_B2

IN_B2

AVCC

IP_B1

IN_B1

VTTI

IP_B0

IN_B0

NOTES

1. THE AD8194 LFCSP HAS AN EXPOSED PADDLE (ePAD) ON THE UNDERSIDE

OF THE PACKAGE, WHICH AIDS IN HEAT DISSIPATION. THE ePAD MUST BE

ELECTRICALLY CONNECTED TO THE AVEE SUPPLY PLANE TO MEET

THERMAL SPECIFICATIONS.

24

23

22

21

20

19

18

17

1

2

3

4

5

6

7

8

AD8194

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

Table 4. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

IN_A2

HS I

High Speed Input Complement.

2

IP_A2

HS I

High Speed Input.

3, 19

VTTI

Power

Input Termination Supply. Nominally connected to AVCC.

4

IN_A3

HS I

High Speed Input Complement.

5

IP_A3

HS I

High Speed Input.

6, 22

AVCC

Power

Positive Power Supply. 3.3 V nominal.

7

OP3

HS O

High Speed Output.

8

ON3

HS O

High Speed Output Complement.

9

OP2

HS O

High Speed Output.

10

ON2

HS O

High Speed Output Complement.

11, 27, ePAD

AVEE

Power

Negative Power Supply. 0 V nominal.

12

OP1

HS O

High Speed Output.

13

ON1

HS O

High Speed Output Complement.

14

VTTO

Power

Output Termination Supply. Nominally connected to AVCC.

15

OP0

HS O

High Speed Output.

16

ON0

HS O

High Speed Output Complement.

17

IN_B0

HS I

High Speed Input Complement.

18

IP_B0

HS I

High Speed Input.

20

IN_B1

HS I

High Speed Input Complement.

21

IP_B1

HS I

High Speed Input.

23

IN_B2

HS I

High Speed Input Complement.

24

IP_B2

HS I

High Speed Input.

25

IN_B3

HS I

High Speed Input Complement.

26

IP_B3

HS I

High Speed Input.

28

IN_A0

HS I

High Speed Input Complement.

29

IP_A0

HS I

High Speed Input.

30

S_SEL

Control

Source Selector Pin.

31

IN_A1

HS I

High Speed Input Complement.

32

IP_A1

HS I

High Speed Input.

1

HS = high speed, I = input, O = output.