Datasheet
AD8366
Rev. A | Page 7 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
PIN 1
INDICATOR
1
2
3
4
5
6
7
8
24
NOTES
1. THE EXPOSED PAD MUST BE CONNECTED
TO GROUND.
23
22
21
20
19
18
17
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
VPSIA
IPPA
IPMA
ENBL
ICOM
IPMB
IPPB
VPSIB
BIT0/CS
BIT1/SDAT
BIT2/SCLK
BIT3
OCOM
BIT4
BIT5
DENA
DECA
OFSA
CCMA
VCMA
VPSO
A
OPPA
OPMA
SENB
DECB
OFSB
CCMB
VCMB
VPSOB
OPPB
OPMB
DENB
AD8366
TOP VIEW
(Not to Scale)
07584-028
Figure 4. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1, 8, 13, 28
VPSIA, VPSIB, VPSOB,
VPSOA
Input and Output Stage Positive Supply Voltage (4.75 V to 5.25 V).
2, 3, 6, 7
IPPA, IPMA, IPMB,
IPPB
Differential Inputs.
4 ENBL Chip Enable. Pull this pin high to enable.
5, 20 ICOM, OCOM
Input and Output Ground Pins. Connect these pins via the lowest possible impedance to
ground.
9, 32 DECB, DECA
V
POS
/2 Reference Decoupling Node. Connect a decoupling capacitor from these nodes to
ground.
10, 31 OFSB, OFSA
Output Offset Correction Loop Compensation. Connect a capacitor from these nodes to
ground to enable the correction loop. Tie this pin to ground to disable.
11, 30 CCMB, CCMA Connect These Nodes to Ground.
12, 29 VCMB, VCMA
Output Common-Mode Setpoint. These pins default to V
POS
/2 if left open. Drive these pins
from a low impedance source to change the output common-mode voltage.
14, 15, 26, 27
OPPB, OPMB, OPMA,
OPPA
Differential Outputs.
16, 17 DENB, DENA
Data Enable. Pull these pins high to address each or both channels for parallel gain
programming. These pins are not used in serial mode.
18, 19, 21, 22, 23, 24
BIT5, BIT4, BIT3,
BIT2/SCLK, BIT1/SDAT,
BIT0/CS
Parallel Data Path (When SENB Is Low). When SENB is high, BIT0 becomes a chip select (CS),
BIT1 becomes a serial data input (SDAT), and BIT2 becomes a serial clock (SCLK). BIT3 to BIT5
are not used in serial mode.
25 SENB
Serial Interface Enable. Pull this pin high for serial gain programming mode and pull this pin low
for parallel gain programming mode.
EPAD The exposed pad must be connected to ground.