AD8641/AD8642/AD8643

Rev. B | Page 8 of 16

–600

–400

–200

–300

–500

0

–100

200

100

400

300

600

500

–5

0

–15

–10

5

10

15

OUTPUT VOLTAGE (V)

10k

Ω 1kΩ

100k

Ω

Figure 19. Input Error Voltage vs. Output Voltage for Resistive Loads

–350

–250

–150

–200

–300

–50

–100

50

0

150

100

250

200

0

50

100

150

200

250

300

350

OUTPUT VOLTAGE FROM SUPPLY RAIL (mV)

POS RAIL

NEG RAIL

Figure 20. Input Error Voltage vs. Output Voltage

Within 300 mV of Supply Rails

0

100

200

300

400

500

600

700

800

4

8

12

16

20

24

28

+25°C

–55°C

+125°C

Figure 21. Quiescent Current vs. Supply Voltage at Different Temperatures

1

10

100

1000

10000

0.001

0.01

0.1

1

10

100

LOAD CURRENT (mA)

–

Figure 22. Output Saturation Voltage vs. Load Current

1

10

100

1000

10000

0.001

0.01

0.1

1

10

100

LOAD CURRENT (mA)

Figure 23. Output Saturation Voltage vs. Load Current

–30

–135

–90

–45

0

45

90

135

180

225

270

315

–20

–10

0

10

20

30

40

50

60

70

10k

100k

1M

10M

GAIN

PHASE

FREQUENCY (Hz)

Figure 24. Open-Loop Gain and Phase Margin vs. Frequency