Data Sheet

AD8318

Rev. D | Page 7 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

12

11

10

1

3

4

9

2

CMIP

CMIP

VPSI

VPSI

CMIP

CMIP

TADJ

VPSO

NOTES

1. EPAD. INTERNALLY CONNECTED

TO CMIP (SOLDER TO GROUND).

AD8318

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

Table 3. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 2, 11, 12

CMIP

Device Common (Input System Ground).

3, 4

VPSI

Positive Supply Voltage (Input System): 4.5 V to 5.5 V. Voltage on Pin 3, Pin 4, and Pin 9 should be equal.

5

CLPF

Loop Filter Capacitor.

6

VOUT

Measurement and Controller Output.

7

VSET

Setpoint Input for Controller Mode or Feedback Input for Measurement Mode.

8

CMOP

Device Common (Output System Ground).

9

VPSO

Positive Supply Voltage (Output System): 4.5 V to 5.5 V. Voltage on Pin 3, Pin 4, and Pin 9 should be equal.

10

TADJ

Temperature Compensation Adjustment.

13

TEMP

Temperature Sensor Output.

14

INHI

RF Input. Nominal input range: −60 dBm to 0 dBm (referenced to 50 Ω), ac-coupled.

15

INLO

RF Common for INHI. AC-coupled RF common.

16

ENBL

Device Enable. Connect to VPSI for normal operation. Connect pin to ground for disable mode.

EPAD

Internally Connected to CMIP (Solder to Ground).