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ADS7945 Datasheet(PDF) 13 Page - Texas Instruments

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Part # ADS7945
Description  14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power Analog-to-Digital Converters
PDF  49 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS7945 Datasheet(HTML) 13 Page - Texas Instruments

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75
77
79
81
83
85
−40 −25 −10
5
20
35
50
65
80
95
110 125
Free-Air Temperature (°C)
fIN = 20 kHz
G023
75
77
79
81
83
85
0
20
40
60
80
100
fIN, Input Frequency (kHz)
G025
−100
−96
−92
−88
−84
−80
2.7
3.2
3.7
4.2
4.7
5.2
5.7
AVDD,Analog Supply Voltage (V)
fIN = 20 kHz
G030
−100
−96
−92
−88
−84
−80
2.5
3
3.5
4
4.5
5
5.5
Reference Voltage (V)
AVDD = 5.25 V
fIN = 20 kHz
G032
−100
−96
−92
−88
−84
−80
−40 −25 −10
5
20
35
50
65
80
95
110 125
Free-Air Temperature (°C)
AVDD = 3 V
fIN = 20 kHz
G031
−100
−96
−92
−88
−84
−80
0
20
40
60
80
100
fIN, Input Frequency (kHz)
AVDD = 3 V
G033
ADS7945
ADS7946
www.ti.com
SBAS539B
– JUNE 2011 – REVISED SEPTEMBER 2011
TYPICAL CHARACTERISTICS: ADS7945 (continued)
At TA = +25°C, AVDD = 5 V, DVDD = 1.8 V, VREF = 2.5 V, and fSAMPLE = 2 MSPS, unless otherwise noted.
SINAD vs FREE-AIR TEMPERATURE
SINAD vs INPUT FREQUENCY
Figure 19.
Figure 20.
THD vs ANALOG SUPPLY VOLTAGE
THD vs REFERENCE VOLTAGE
Figure 21.
Figure 22.
THD vs FREE-AIR TEMPERATURE
THD vs INPUT FREQUENCY
Figure 23.
Figure 24.
Copyright
© 2011, Texas Instruments Incorporated
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Product Folder Link(s): ADS7945 ADS7946



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