參數(shù)資料
型號: AD7641BCPZRL
廠商: Analog Devices Inc
文件頁數(shù): 4/28頁
文件大?。?/td> 0K
描述: IC ADC 18BIT 2MSPS SAR 48-LFCSP
產(chǎn)品培訓(xùn)模塊: ADC Applications
ADC Architectures
ADC DC/AC Performance
標(biāo)準(zhǔn)包裝: 2,500
位數(shù): 18
采樣率(每秒): 2M
數(shù)據(jù)接口: 串行,并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 92mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 48-LFCSP-VQ(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,雙極
配用: EVAL-AD7641CBZ-ND - BOARD EVALUATION FOR AD7641
AD7641
Rev. 0 | Page 12 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
3.0
2.5
2.0
–3.0
–2.5
0
262144
CODE
IN
L
(
L
S
B
)
0
476
1-
0
05
1.5
1.0
0.5
0
–0.5
–1.0
–2.0
–1.5
65536
131072
196608
Figure 5. Integral Nonlinearity vs. Code
40000
0
00
0
39
232
2
11
683
272
1F
F
E
F
1F
F
0
1F
F
1
1F
F
2
1F
F
3
1F
F
4
1F
F
5
1F
F
6
1F
F
7
1F
F
8
1F
F
9
1F
F
FA
1F
F
B
1F
F
C
1F
F
D
1F
F
E
1F
FFF
20000
04
76
1-
0
06
CODE IN HEX
CO
UNT
S
35000
30000
25000
20000
15000
10000
5000
0
34844
31003
24739
16207
5248
2124
10938
4730
σ = 1.55
Figure 6. Histogram of 261,120 Conversions of a DC Input at
the Code Center (External Reference)
2.0530
2.0480
–55
125
0
476
1-
0
07
TEMPERATURE (°C)
V
RE
F
(V
)
2.0525
2.0520
2.0515
2.0510
2.0505
2.0500
2.0495
2.0490
2.0485
–35
–15
5
25
45
65
85
105
Figure 7. Typical Reference Voltage Output vs. Temperature (3 Units)
2.0
–2.0
0
262144
CODE
DNL
(
L
S
B)
04
76
1-
0
08
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
65536
131072
196608
Figure 8. Differential Nonlinearity vs. Code
30000
0
1F
E
D
9
1FE
D
B
1FE
D
1FE
D
F
1FE
E
1
1FE
E
3
1FE
E
5
1FE
E
7
1FE
E
9
1
F
EEB
1F
E
D
A
1FE
D
C
1F
E
D
E
1FE
E
0
1FE
E
2
1FE
E
4
1FE
E
6
1FE
E
8
1FE
E
A
04
76
1-
0
09
CODE IN HEX
CO
UNT
S
25000
20000
15000
10000
5000
11 52 117
912
2105
10846
12922
22225
24731
23436
18995
8219
4688
1171
58951 10 1
σ = 2.02
Figure 9. Histogram of 261,120 Conversions of a DC Input at
the Code Center (Internal Reference)
20
–20
–55
125
0
476
1-
0
10
TEMPERATURE (°C)
Z
E
RO
-E
RRO
R,
F
U
L
-S
CAL
E
RR
O
R
(L
S
B)
18
16
14
12
10
8
6
4
2
0
–2
–4
–6
–8
–10
–12
–14
–16
–18
–35
–15
5
25
45
65
85
105
ZERO-ERROR
–FS
+FS
Figure 10. Zero Error, Positive and Negative Full Scale vs. Temperature
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