Datasheet
AD9212 Data Sheet
Rev. E | Page 44 of 56
CW
CW
AD8334ACPZ-REEL
INH 2
LMD2
COM2X
LON2
LOP2
VIP2
VIN2
VPS2
VPS3
VIN3
VIP3
LOP3
LON3
COM3X
LMD3
INH 3
COM4
INH4
LMD4
COM4X
LON4
LOP4
VIP4
VIN4
VPS4
HILO
MODE
VPS1
VIN1
VIP1
LOP1
LON1
COM1X
LMD1
INH1
COM1
NC
NC
VOL2
VOH2
COM2
VCM2
COM3
VCM3
VOL3
VOH3
VCM4
VOH4
VOL4
VOL1
VOH1
VCM1
GAIN12
CLMP12
EN12
COM12
VPS12
COM12
EN34
COM34
VPS34
COM34
CLMP34
GAIN34
EXT VG
External
Variable Gain Drive
Variable Gain Circuit
(0−1.0V DC)
HILO Pin=H=+/− 75mV
HILO Pin=LO=+/− 50mV
Rclamp Pin
EXT VG
HILO Pin=H=+/− 75mV
HILO Pin=LO=+/− 50mV
Rclamp Pin
External
Variable Gain Drive
Variable Gain Circuit
(0−1.0V DC)
resistors or design your own filter.
Power Down Enable
(0−1V=Disable Power)
DNP: DO NOT POPULATE.
MODE Pin
Positive Gain Slope = 0−1.0V
Negitive Gain Slope = 2.25−5.0V
Populate L505−L520 with 0Ω
0.1µF
C537
0Ω
L519
0Ω
L515
374Ω
R532
374Ω
R527
DNP
R522
DNP
R517
0.1µF
C530
0.1µF
C529
0.1µF
C528
120nH
L503
0.1µF
C524
0.1µF
C523
0.1µF
C518
374Ω
R515
10kΩ
R504
0.1µF
C504
62
61
60
59
58
57
56
55
54
53
52
51
50
49
33
34
35
36
37
38
39
41
42
43
44
45
46
47
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
63
64
48
40
U501
0.1µF
C506
AVDD_ 5V
10kΩ
R511
10kΩ
R512
10kΩ
R505
AVDD_5V
AVDD_ 5V
AVDD_5V
AVDD_5V
VG34
0.1µF
C538
AVDD_ 5V
AVDD_5V
0.1µF
C505
22pF
C503
VG12
C512
10µF
AVDD_ 5V
AVDD_5V
0.1µF
C501
187Ω
R513
10kΩ
DNP
R506
10kΩ
R501
274Ω
R503
0.018µF
C502
12
JP501
120nH
L501
0.1µF
C508
0.1µF
C509
1000pF
C507
39kΩ
R502
C510
10µF
AVDD_5V
VG12
VG12
GND
R521
DNP
0Ω
L510
R516
DNP
C542
DNP
187Ω
R518
187Ω
R514
0.1µF
C545
0.1µF
C541
0.1µF
C540
0Ω
L505
0Ω
L511
0Ω
L508
0Ω
L507
0Ω
L509
0Ω
L506
0Ω
L512
374Ω
R520
187Ω
R519
0.1µF
C544
C546
DNP
C543
DNP
C547
DNP
CH_CCH_D
CH_D CH_C
DNP
R534
R533
DNP
0Ω
L518
R528
DNP
C550
DNP
187Ω
R530
187Ω
R526
0.1µF
C553
0.1µF
C549
0.1µF
C548
0Ω
L513
0Ω
L516
0Ω
L517
0Ω
L514
0Ω
L520
187Ω
R531
187Ω
R525
0.1µF
C552
C554
DNP
C551
DNP
C555
DNP
DNP
R529
CH_ACH_B
CH_B CH_A
INH 4
0.1µF
C511
22pF
C514
0.1µF
C513
120nH
L502
INH3
274Ω
R507
0.018µF
C515
0.1µF
C522
22pF
C520
0.1µF
C519
274Ω
R508
0.018µF
C521
INH 2
C526
22pF
C525
0.1µF
L504
120nH
R509
274Ω
C527
0.018µF
INH 1
0.1µF0.1µF
C536C535C534C533
10µF10µF
10kΩ
DNP
R510
0.1µF
C532
1000pF
C531
10kΩ
R535
1
JP502
39kΩ
R536
AVDD_5V
VG34
VG34
GND
10kΩ
R523
10kΩ
R524
AVDD_5V
0
5968-076
2
Figure 78. Evaluation Board Schematic, Optional DUT Analog Input Drive