Datasheet

AD8123
Rev. A | Page 6 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTION
1
NC
GND
+IN
CMP1
OUT
CMP1
V
S+
_CMP
V
S–
V
S+
V
S–
V
OFFSET
GND
V
POLE
V
PEAK
V
GAIN
V
S+
–IN
G
+IN
B
–IN
B
–IN
CMP1
OUT
CMP2
–IN
CMP2
+IN
CMP2
NC
OUT
B
OUT
G
OUT
R
V
S–
V
S+
V
S–
V
S+
V
S–
V
S+
NC
V
S–
_CMP
NC
PD
NC
+IN
R
+IN
G
NC
1
2
3
4
5
6
7
8
9
10
23
24
25
26
27
28
29
30
22
21
11
12
13
15
17
16
18
19
20
14
33
34
35
36
37
38
39
40
32
31
TOP VIEW
(Not to Scale)
AD8123
–IN
R
06814-002
2
NC = NO CONNECT
NOTES
1. EXPOSED PADDLE ON THE BOTTOM OF THE PACKAGE
MUST BE CONNECTED TO A PCB PLANE TO ACHIEVE
SPECIFIED THERMAL RESISTANCE.
Figure 4. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1, 10, 20, 21, 30, 40 NC No Internal Connection.
2 +IN
CMP1
Positive Input, Comparator 1.
3 −IN
CMP1
Negative Input, Comparator 1.
4 OUT
CMP1
Output, Comparator 1.
5 V
S+
_CMP Positive Power Supply, Comparator. Must be connected to V
S+
.
6 OUT
CMP2
Output, Comparator 2.
7 −IN
CMP2
Negative Input, Comparator 2.
8 +IN
CMP2
Positive Input, Comparator 2.
9 V
S−
_CMP Negative Power Supply, Comparator. Must be connected to V
S−
.
11, 14, 17, 22, 33 V
S−
Negative Power Supply, Equalizer Sections.
12 OUT
B
Output, Blue Channel.
13, 16, 19, 29, 36 V
S+
Positive Power Supply, Equalizer Sections.
15 OUT
G
Output, Green Channel.
18 OUT
R
Output, Red Channel.
23 V
OFFSET
Output Offset Control Voltage.
24, 39 GND Signal Ground Reference.
25 V
GAIN
Broadband Flat Gain Control Voltage.
26 V
PEAK
Equalizer High Frequency Boost Control Voltage.
27 V
POLE
Equalizer Pole Location Adjustment Control Voltage.
28
PD
Power Down.
31 +IN
R
Positive Input, Red Channel.
32 −IN
R
Negative Input, Red Channel.
34 +IN
G
Positive Input, Green Channel.
35 −IN
G
Negative Input, Green Channel.
37 +IN
B
Positive Input, Blue Channel.
38 −IN
B
Negative Input, Blue Channel.
Exposed Underside Pad Thermal Plane Connection. Connect to any PCB plane with voltage between V
S+
and V
S−
.