Datasheet
AD9216
Rev. A | Page 9 of 40
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
PIN 1
INDICATOR
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
AVDD
CLK_B
DCS
DFS
PDWN_B
OEB_B
DNC
DNC
DNC
DNC
D0_B (LSB)
DRGND
DRVDD
D1_B
D2_B
D3_B
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
AVDD
CLK_A
SHARED_REF
MUX_SELECT
PDWN_A
OEB_A
DNC
D9_A (MSB)
D8_A
D7_A
D6_A
DRGND
DRVDD
D5_A
D4_A
D3_A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
AGND
VIN+_A
VIN–_A
AGND
AVDD
REFT_A
REFB_
A
VREF
SENSE
REFB_B
REFT_B
AVDD
AGND
VIN–_B
VIN+_B
AGND
D2_A
D1_A
D0_A (LSB)
DNC
DNC
DNC
DNC
DRVDD
DRGND
DNC
D9_B (MSB)
D8_B
D7_B
D6_B
D5_B
D4_B
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AD9216
TOP VIEW
(Not to Scale)
04775-003
DNC =
DO NOT CONNECT
Figure 3. Pin Configuration
Table 7. Pin Function Descriptions
Pin No. Mnemonic Description
1, 4, 13, 16 AGND
1
Analog Ground.
2 VIN+_A Analog Input Pin (+) for Channel A.
3 VIN−_A Analog Input Pin (−) for Channel A.
5, 12, 17, 64 AVDD Analog Power Supply.
6 REFT_A Differential Reference (+) for Channel A.
7 REFB_A Differential Reference (−) for Channel A.
8 VREF Voltage Reference Input/Output.
9 SENSE Reference Mode Selection.
10 REFB_B Differential Reference (−) for Channel B.
11 REFT_B Differential Reference (+) for Channel B.
14 VIN−_B Analog Input Pin (−) for Channel B.
15 VIN+_B Analog Input Pin (+) for Channel B.
18 CLK_B Clock Input Pin for Channel B.
19 DCS Duty Cycle Stabilizer (DCS) Mode Pin (Active High).
20 DFS Data Output Format Select Pin. Low for offset binary; high for twos complement.
21 PDWN_B Power-Down Function Selection for Channel B.
Logic 0 enables Channel B.
Logic 1 powers down Channel B. (Outputs static, not High-Z.)
22 OEB_B Output Enable for Channel B.
Logic 0 enables Data Bus B.
Logic 1 sets outputs to High-Z.
23 to 26, 39,
42 to 45, 58
DNC Do Not Connect Pins. Should be left floating.
27, 30 to 38
D0_B (LSB) to
D9_B (MSB)
Channel B Data Output Bits.
28, 40, 53 DRGND Digital Output Ground.
29, 41, 52 DRVDD
Digital Output Driver Supply. Must be decoupled to DRGND with a minimum 0.1 µF capacitor.
Recommended decoupling is 0.1 µF capacitor in parallel with 10 µF.