参数资料
型号: ADS7945SRTER
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 2-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC16
封装: GREEN, PLASTIC, QFN-16
文件页数: 2/49页
文件大小: 1322K
代理商: ADS7945SRTER
1
0.5
0
0.5
1
1.5
2.7
3.2
3.7
4.2
4.7
5.2
5.7
Maximum DNL
Minimum DNL
AVDD, Analog Supply Voltage (V)
Differential
Nonlinearity
(LSB)
G006
1
0.5
0
0.5
1
1.5
2.5
3
3.5
4
4.5
5
5.5
Maximum DNL
Minimum DNL
Reference Voltage (V)
Differential
Nonlinearity
(LSB)
AVDD = 5.25 V
G010
1
0.5
0
0.5
1
1.5
40 25 10
5
20
35
50
65
80
95
110 125
Maximum DNL
Minimum DNL
Free-Air Temperature (°C)
Differential
Nonlinearity
(LSB)
G008
1.5
1
0.5
0
0.5
1
1.5
2.7
3.2
3.7
4.2
4.7
5.2
5.7
Maximum INL
Minimum INL
AVDD, Analog Supply Voltage (V)
Integral
Nonlinearity
(LSB)
G007
1.5
1
0.5
0
0.5
1
1.5
2.5
3
3.5
4
4.5
5
5.5
Maximum INL
Minimum INL
Reference Voltage (V)
Integral
Nonlinearity
(LSB)
AVDD = 5.25 V
G011
1.5
1
0.5
0
0.5
1
1.5
40 25 10
5
20
35
50
65
80
95
110 125
Maximum INL
Minimum INL
Free-Air Temperature (°C)
Integral
Nonlinearity
(LSB)
G009
SBAS539B
– JUNE 2011 – REVISED SEPTEMBER 2011
TYPICAL CHARACTERISTICS: ADS7945
At TA = +25°C, AVDD = 5 V, DVDD = 1.8 V, VREF = 2.5 V, and fSAMPLE = 2 MSPS, unless otherwise noted.
DNL vs ANALOG SUPPLY VOLTAGE
DNL vs REFERENCE VOLTAGE
Figure 1.
Figure 2.
DNL vs FREE-AIR TEMPERATURE
INL vs ANALOG SUPPLY VOLTAGE
Figure 3.
Figure 4.
INL vs REFERENCE VOLTAGE
INL vs FREE-AIR TEMPERATURE
Figure 5.
Figure 6.
10
Copyright
2011, Texas Instruments Incorporated
Product Folder Link(s): ADS7945 ADS7946
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