Datasheet

2.5
3
3.5
4
4.5
5
−40 −25 −10 5 20 35 50 65 80 95 110 125
Free-Air Temperature (°C)
AVDD Dynamic Current (mA)
G002
0
0.5
1
1.5
2
2.5
3
3.5
4
0 100 200 300 400 500 600 700
AVDD = 5 V
AVDD = 3 V
Throughput (kSPS)
AVDD Supply Current (mA)
G005
1
1.5
2
2.5
3
2.7 3.2 3.7 4.2 4.7 5.2 5.7
AVDD, Analog Supply Voltage (V)
AVDD Static Current (mA)
G003
1
1.5
2
2.5
3
−40 −25 −10 5 20 35 50 65 80 95 110 125
Free-Air Temperature (°C)
AVDD Static Current (mA)
G004
−1
−0.5
0
0.5
1
1.5
0 2048 4096 6144 8192 10240 12288 14336 16384
ADC output Code (LSB)
Differential Nonlinearity (LSB)
G037
−1.5
−1
−0.5
0
0.5
1
1.5
0 2048 4096 6144 8192 10240 12288 14336 16384
ADC Output Code (LSB)
Integral Nonlinearity (LSB)
G036
ADS7945
ADS7946
www.ti.com SBAS539B –JUNE 2011– REVISED SEPTEMBER 2011
TYPICAL CHARACTERISTICS: ADS7945 (continued)
At T
A
= +25°C, AVDD = 5 V, DVDD = 1.8 V, V
REF
= 2.5 V, and f
SAMPLE
= 2 MSPS, unless otherwise noted.
ANALOG SUPPLY CURRENT (Dynamic) ANALOG SUPPLY CURRENT (Dynamic)
vs FREE-AIR TEMPERATURE vs SAMPLE RATE
Figure 31. Figure 32.
ANALOG SUPPLY CURRENT (Static) ANALOG SUPPLY CURRENT (Static)
vs ANALOG SUPPLY VOLTAGE vs FREE-AIR TEMPERATURE
Figure 33. Figure 34.
DNL INL
Figure 35. Figure 36.
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