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ADS7846NG4 Datasheet, PDF (5/30 Pages) Burr-Brown (TI) – TOUCH SCREEN CONTROLLER
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TYPICAL CHARACTERISTICS
At TA = +25°C, +VCC = +2.7V, VREF = External +2.5V, fSAMPLE = 125kHz, and fCLK = 16 • fSAMPLE = 2MHz, unless otherwise noted.
SUPPLY CURRENT vs TEMPERATURE
400
350
300
250
200
150
100
–40 –20
0
20
40
60
Temperature (°C)
80 100
POWER-DOWN SUPPLY CURRENT
vs TEMPERATURE
140
120
100
80
60
40
20
–40 –20
0
20
40
60
Temperature (°C)
80 100
SUPPLY CURRENT vs +VCC
390
370
fSAMPLE = 12.5kHz
350
330
310
290
270
250
2.0
2.5
3.0
3.5
4.0
4.5
5.0
+VCC (V)
MAXIMUM SAMPLE RATE vs +VCC
1M
100k
10k
1k
2.0
2.5
3.0
3.5
4.0
4.5
5.0
+VCC (V)
CHANGE IN GAIN vs TEMPERATURE
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–40 –20
0
20
40
60
Temperature (°C)
80 100
CHANGE IN OFFSET vs TEMPERATURE
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–40 –20
0
20
40
60
Temperature (°C)
80 100
ADS7846
5
SBAS125H
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