ADAQ7980 datasheet(21/49 Pages) AD

21 / 49 page

Data Sheet

ADAQ7980/ADAQ7988

Rev. 0 | Page 21 of 49

0.6

0.5

0.4

0.3

0.2

0.1

010

OVERLOAD DURATION (µs)

G = +1

V+ = +7V

V– = –2V

VIN = 10% OVERDRIVE

Figure 29. Recovery Time vs. Overload Duration

–180

–160

–140

–120

–100

–80

–60

–40

–20

100

120

100

10k

100k

10M

100M

FREQUENCY (Hz)

GAIN

PHASE

Figure 30. ADC Driver Open-Loop Gain and Phase vs. Frequency

200

400

600

800

100

1200

1400

–55

–35

–15

105

125

TEMPERATURE (°C)

fS = 100kSPS

V– = 0V

VREF = 3.3V

V+ = 10V

V+ = 7V

V+ = 5V

Figure 31. ADC Driver Dynamic Power Scaling Turn-On Time vs. Temperature

for Various Supply Voltages

1200

1000

800

600

400

200

410

SUPPLY (V)

fS = 100kSPS

V– = 0V

VREF = 3.3V

Figure 32. ADC Driver Dynamic Power Scaling Turn On Time vs. Supply

Voltage

100

200

300

400

500

600

800

700

2345

TIME (µs)

V– = 0V

V+ = 10V

V+ = 5V

V+ = 4V

Figure 33. Supply Current vs. ADC Driver and Reference Buffer Turn-Off

Response Time for Various Supplies

100

200

300

400

500

600

700

800

0123456

TIME (µs)

V+ = 5V

V– = 0V

+125°C

+25°C

–40°C

Figure 34. Supply Current vs. ADC Driver and Reference Buffer Turn-Off

Response Time for Various Temperatures

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