參數(shù)資料
型號(hào): ADS1271
元件分類: ADC
英文描述: 24 BIT WIDE BANDWIDTH ANALOG TO DIGITAL CONVERTER
中文描述: 24位寬帶模數(shù)轉(zhuǎn)換器
文件頁數(shù): 12/29頁
文件大?。?/td> 381K
代理商: ADS1271
SBAS306A NOVEMBER 2004 REVISED DECEMBER 2004
www.ti.com
12
TYPICAL CHARACTERISTICS (continued)
TA = 25
°
C, AVDD = 5V, DVDD = 1.8V, fCLK = 27MHz, and VREF = 2.5V, unless otherwise noted.
Figure 25
REFERENCE INPUT DIFFERENTIAL IMPEDANCE
vs TEMPERATURE
40
20
0
20
Temperature ( C)
40
60
80
100
4280
4260
4240
4220
4200
4180
4160
4140
4120
4100
R
)
120125
HighSpeed and
HighResolution Modes
Figure 26
REFERENCE INPUT DIFFERENTIAL IMPEDANCE
vs TEMPERATURE
40
20
0
20
Temperature ( C)
40
60
80
100
8900
8800
8700
8600
8500
8400
8300
8200
R
)
120125
LowPower Mode
Figure 27
ANALOG INPUT DIFFERENTIAL IMPEDANCE
vs TEMPERATURE
40
20
0
20
Temperature ( C)
40
60
80
100
16550
16500
16450
16400
16350
16300
16250
16200
16150
A
)
120125
HighSpeed and
HighResolution Modes
Figure 28
ANALOG INPUT DIFFERENTIAL IMPEDANCE
vs TEMPERATURE
40
20
0
20
Temperature ( C)
40
60
80
100
33200
33000
32800
32600
32400
32200
32000
A
)
120125
LowPower Mode
Figure 29
INTEGRAL NONLINEARITY vs TEMPERATURE
40
20
0
20
Temperature ( C)
40
60
80
100
14
12
10
8
6
4
2
0
I
120125
HighResolution
HighSpeed
LowPower
Figure 30
LINEARITY ERROR vs INPUT LEVEL
2.5
2.0
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0
V
IN
(V)
10
8
6
4
2
0
2
4
6
8
10
L
2.5
HighSpeed Mode
T = +25 C
T = +125 C
T = +105 C
T =
40 C
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