参数资料
型号: AD9257BCPZRL7-40
厂商: Analog Devices Inc
文件页数: 40/40页
文件大小: 0K
描述: IC ADC 14BIT SRL 40MSPS 64LFCSP
标准包装: 750
位数: 14
采样率(每秒): 40M
数据接口: 串行,SPI?
转换器数目: 8
功率耗散(最大): 434mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-VFQFN 裸露焊盘,CSP
供应商设备封装: 64-LFCSP-VQ(9x9)
包装: 带卷 (TR)
输入数目和类型: 8 个差分
Data Sheet
AD9257
Rev. A | Page 9 of 40
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
D–
G
D+
G
D–
F
D+
F
D–
E
D+
E
DCO
DC
O
+
FC
O–
FC
O+
D–
D
D+
D
D–
C
D+
C
D–
B
D+
B
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
VI
N
+
F
VI
N
F
AV
D
VI
N
E
VI
N
+
E
AV
D
SYN
C
VC
M
VR
EF
SEN
SE
RBI
AS
VI
N
+
D
VI
N
D
AV
D
VI
N
C
VI
N
+
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
AVDD
VIN+ G
VIN– G
AVDD
VIN– H
VIN+ H
AVDD
CLK–
CLK+
AVDD
DNC
DRVDD
D– H
D+ H
AVDD
VIN+ B
VIN– B
AVDD
VIN– A
VIN+ A
AVDD
PDWN
CSB
SDIO/DFS
SCLK/DTP
AVDD
DNC
DRVDD
D+ A
D– A
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AD9257
TOP VIEW
(Not to Scale)
102
06-
0
05
NOTES
1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN.
2. THE EXPOSED PAD MUST BE CONNECTED TO ANALOG GROUND.
PIN 1
INDICATOR
Figure 5. Pin Configuration, Top View
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Description
0, EP
AGND, Exposed Pad
Analog Ground, Exposed Pad. The exposed thermal pad on the bottom of the package
provides the analog ground for the part. This exposed pad must be connected to ground
for proper operation.
1, 4, 7, 8, 11, 12, 37,
42, 45, 48, 51, 59, 62
AVDD
1.8 V Analog Supply.
13, 36
DNC
Do Not Connect.
14, 35
DRVDD
1.8 V Digital Output Driver Supply.
2, 3
VIN+ G, VIN G
ADC G Analog Input True, ADC G Analog Input Complement.
5, 6
VIN H, VIN+ H
ADC H Analog Input Complement, ADC H Analog Input True.
9, 10
CLK, CLK+
Input Clock Complement, Input Clock True.
15, 16
D H, D+ H
ADC H Digital Output Complement, ADC H Digital Output True.
17, 18
D G, D+ G
ADC G Digital Output Complement, ADC G Digital Output True.
19, 20
D F, D+ F
ADC F Digital Output Complement, ADC F Digital Output True.
21, 22
D E, D+ E
ADC E Digital Output Complement, ADC E Digital Output True.
23, 24
DCO, DCO+
Data Clock Digital Output Complement, Data Clock Digital Output True.
25, 26
FCO, FCO+
Frame Clock Digital Output Complement, Frame Clock Digital Output True.
27, 28
D D, D+ D
ADC D Digital Output Complement, ADC D Digital Output True.
29, 30
D C, D+ C
ADC C Digital Output Complement, ADC C Digital Output True.
31, 32
D B, D + B
ADC B Digital Output Complement, ADC B Digital Output True.
33, 34
D A, D+ A
ADC A Digital Output Complement, ADC A Digital Output True.
38
SCLK/DTP
Serial Clock (SCLK)/Digital Test Pattern (DTP).
39
SDIO/DFS
Serial Data Input/Output (SDIO)/Data Format Select (DFS).
40
CSB
Chip Select Bar.
41
PDWN
Power-Down.
43, 44
VIN+ A, VIN A
ADC A Analog Input True, ADC A Analog Input Complement.
46, 47
VIN B, VIN+ B
ADC B Analog Input Complement, ADC B Analog Input True.
49, 50
VIN+ C, VIN C
ADC C Analog Input True, ADC C Analog Input Complement.
52, 53
VIN D, VIN+ D
ADC D Analog Input Complement, ADC D Analog Input True.
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