参数资料
型号: LTC2281IUP#PBF
厂商: Linear Technology
文件页数: 13/24页
文件大小: 0K
描述: IC ADC 10BIT DUAL 64-QFN
标准包装: 40
位数: 10
采样率(每秒): 125M
数据接口: 并联
转换器数目: 2
功率耗散(最大): 915mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-WFQFN 裸露焊盘
供应商设备封装: 64-QFN(9x9)
包装: 管件
输入数目和类型: 2 个单端,双极; 2 个差分, 双极
LTC2281
20
2281fb
APPLICATIONS INFORMATION
Evaluation
Circuit
Schematic
of
the
L
TC2281
C21
0.1
μ
F
C27
0.1
μ
F
V
DD
V
DD
V
DD
V
DD
V
DD
OV
DD
V
CMB
C20
2.2μF
C18
1
μ
F
C23
1
μ
F
C34
0.1
μ
F
C31
*
C17
0.1
μ
F
C14
0.1
μ
F
C25
0.1
μ
F
C28
2.2μF
C35
0.1
μ
F
C24
0.1
μ
F
C36
4.7μF
E3
V
DD
3V
E5
PW
R
GND
V
DD
OV
DD
2281
AI01
C1
0.1
μ
F
R32
OP
T
R39
1k
R1
1k
R2
1k
R3
1k
R10
1k
R14
49.9Ω
R20
24.9Ω
R18
*
R24
*
R17
OP
T
R22
24.9Ω
R23
51Ω
T2
*
C29
0.1
μ
F
C33
0.1
μ
F
J3
CLOCK
INPUT
U3
NC7SVU04
24
3
5
U4
NC7SV86P5X
C15
0.1
μ
F
C12
4.7μF
6.3V
L1
BEAD
V
DD
C19
0.1
μ
F
C11
0.1
μ
F
C4
0.1
μ
F
C2
2.2μF
C10
2.2μF
C9
1
μ
F
C13
1
μ
F
R15
1k
J4
ANALOG
INPUT
B
QDV
DD
1
2
3
4
5
V
CMB
C8
0.1
μ
F
C6
*
C44
0.1
μ
F
R6
24.9Ω
R5
*
R9
*
R4
OP
T
R7
24.9Ω
R8
51Ω
T1
*
C3
0.1
μ
F
C7
0.1
μ
F
J2
ANALOG
INPUT
A
1
2
3
5
4
V
CMA
V
CMA
12
V
DD
V
DD
34
2/3V
DD
56
1/3V
DD
78
GND
JP1
MODE
R34
4.7k
C39
F
V
DD
OV
DD
IN
BYP
OUT
15
U12
LT
1761ES5-BYP
3
4
ADJ
C38
0.01
μF
C46
0.1
μ
F
E4
GND
C45
100μF
6.3V
OP
T
C40
0.1
μ
F
C48
0.1
μ
F
C47
0.1
μ
F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
E2
EXT
REF
B
12
V
DD
34
V
CM
V
DD
V
CMB
56
EXT
REF
JP3
SENSEB
E1
EXT
REF
A
12
V
DD
34
V
CM
V
DD
56
EXT
REF
JP2
SENSEA
C5
0.1
μ
F
OV
DD
3
4
5
6
7
8
9
10
22
21
U2
FXLH42245MPX
20
19
18
17
16
15
14
2
U5
24LC025
A0
A1
A2
A3
V
CC
WP
SCL
SDA
1
2
3
4
8
7
6
5
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
80
82
84
86
88
90
92
94
96
98
100
79
81
83
85
87
89
91
93
95
97
99
QDV
DD
V
SS
SCL
SDA
R33
4.7k
ENABLE
V
CCIN
J1
EDGE-CON-100
R35
100k
1
4
5
3
2
+
C41
0.1
μ
F
QDV
DD
C52
0.1
μ
F
C55
0.1
μ
F
C54
0.1
μ
F
C53
0.1
μ
F
R38
4.99k
R37
4.99k
R36
4.99k
SCL
V
CCIN
V
SS
SDA
ASSEMBL
Y
T
YPE
DC1098A-A
DC1098A-B
DC1098A-C
DC1098A-D
DC1098A-E
DC1098A-F
U1
LT
C2281IUP
LT
C2283IUP
LT
C2285IUP
LT
C2281IUP
LT
C2283IUP
LT
C2285IUP
R5,
R9,
R18,
R24
24.9Ω
12.4Ω
C6,
C31
12pF
8pF
T1,
T2
MABAES0060
MABA-007159-000000
INPUT
FREQUENCY
1MHz
<
A
IN
<
70MHz
1MHz
<
A
IN
<
70MHz
1MHz
<
A
IN
<
70MHz
<
A
IN
<
140MHz
70MHz
<
A
IN
<
140MHz
70MHz
<
A
IN
<
140MHz
*VERSION
T
ABLE
Msps
125
BITS
10
12
14
10
12
14
A
INA
+
A
INA
REFHA
REFLA
V
DD
CLKA
CLKB
V
DD
REFLB
REFHB
A
INB
A
INB
+
DA3
DA2
DA1
DA0
NC
CLKOUT
DB9
DB8
DB7
DB6
DB5
DB4
DB3
GND
VDD
SENSEA
VCMA
MODE
SHDNA
OEA
OF
DA9
DA8
DA7
DA6
DA5
DA4
OGND
OVDD
GND
VDD
SENSEB
VCMB
MUX
SHDNB
OEB
NC
DB0
DB1
DB2
OGND
OVDD
U1
LT
C2281
A3
A2
A4
A5
A6
A7
OE
A1
A0
B3
B1
B0
12
4
2
3
V
CCA
V
CCB
V
CCB
OV
DD
OV
DD
QDV
DD
B2
B7
T/
R
GND
B5
B4
B6
EXPOSED
PA
D
11
12
13
25
3
4
5
6
7
8
9
10
22
21
U11
FXLH42245MPX
20
19
18
17
16
15
14
2
A3
A2
A4
A5
A6
A7
OE
A1
A0
B3
B1
B0
12
4
2
3
V
CCA
V
CCB
V
CCB
OV
DD
QDV
DD
B2
B7
T/
R
GND
B5
B4
B6
EXPOSED
PA
D
11
12
13
25
3
4
5
6
7
8
9
10
22
21
U10
FXLH42245MPX
20
19
18
17
16
15
14
2
A3
A2
A4
A5
A6
A7
OE
A1
A0
B3
B1
B0
12
4
2
3
V
CCA
V
CCB
V
CCB
OV
DD
QDV
DD
B2
B7
T/
R
GND
B5
B4
B6
EXPOSED
PA
D
11
12
13
25
3
4
5
6
7
8
9
10
22
21
U9
FXLH42245MPX
20
19
18
17
16
15
14
2
A3
A2
A4
A5
A6
A7
OE
A1
A0
B3
B1
B0
12
4
2
3
V
CCA
V
CCB
V
CCB
OV
DD
QDV
DD
B2
B7
T/
R
GND
B5
B4
B6
EXPOSED
PA
D
11
12
13
25
R42
1k
GND
C37
10μF
6.3V
R25
105k
R25
105k
C51
F
V
DD
QDV
DD
IN
BYP
OUT
15
U13
LT
1761ES5-BYP
3
4
ADJ
C49
0.01
μF
GND
C50
10μF
6.3V
R40
105k
R41
100k
2
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