AVDD = DVDD = 5 V; OVDD = 5 V; VCC = 15 V; VEE = 15 V; V" />
參數(shù)資料
型號(hào): AD7634BSTZRL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 4/32頁(yè)
文件大小: 0K
描述: IC ADC 18BIT DIFF BIPO 48-LQFP
標(biāo)準(zhǔn)包裝: 2,000
系列: PulSAR®
位數(shù): 18
采樣率(每秒): 670k
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): 225mW
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-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個(gè)差分,單極;1 個(gè)差分,雙極
AD7634
Data Sheet
Rev. B | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = DVDD = 5 V; OVDD = 5 V; VCC = 15 V; VEE = 15 V; VREF = 5 V; TA = 25°C.
2.5
–2.5
0
262144
IN
L
(
L
S
B
)
CODE
65536
131072
196608
2.0
1.0
–0.5
–1.5
1.5
0.5
0
–1.0
–2.0
06
40
6-
0
05
POSITIVE INL = 1.40LSB
NEGATIVE INL = –1.10LSB
Figure 5. Integral Nonlinearity vs. Code, Bipolar 10 V Range
120
0
–2.0
2.0
NUM
BE
R
O
F
UNI
T
S
INL DISTRIBUTION (LSB)
20
60
40
80
100
–1.2 –0.8 –0.4
0
0.4
0.8
1.2
1.6
–1.6
NEGATIVE INL
POSITIVE INL
06
40
6-
0
06
Figure 6. Integral Nonlinearity Distribution, Unipolar 10 V Range
(288 Devices)
70000
0
1FFFE
20008
CO
UNT
S
CODE IN HEX
20000
20002
20004
20006
60000
50000
40000
20000
30000
10000
06
40
6-
0
07
σ = 0.80
00
25
34164
2172
20
00
1997
32769
59925
Figure 7. Histogram of 261,120 Conversions of a DC Input
at the Code Center, Bipolar 5 V Range
2.5
–1.0
0
262144
DNL
(
L
S
B
)
CODE
65536
131072
196608
2.0
1.0
–0.5
1.5
0.5
0
0
64
06
-00
8
POSITIVE DNL = 1.28LSB
NEGATIVE DNL = –0.63LSB
Figure 8. Differential Nonlinearity vs. Code, Bipolar 10 V Range
180
0
–2.0
2.0
NUM
BE
R
O
F
UNI
T
S
DNL DISTRIBUTION (LSB)
20
60
100
140
–1.2 –0.8 –0.4
0
0.4
0.8
1.2
1.6
–1.6
NEGATIVE DNL
POSITIVE DNL
40
80
120
160
06
40
6-
0
09
Figure 9. Differential Nonlinearity Distribution, Bipolar 5 V Range
(288 Devices)
CO
UNT
S
CODE IN HEX
20006
1FFFC
1FFFE
20000
20002
20004
60000
0
50000
40000
30000
20000
10000
06
40
6-
0
10
00
σ = 0.75
56811
54874
005
6901
294
349
11838
Figure 10. Histogram of 261,120 Conversions of a DC Input
at the Code Transition, Bipolar 5 V Range
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