ADA4858-3

Rev. 0 | Page 11 of 16

1000

900

800

700

600

500

400

300

200

100

0

0.5

1.0

1.5

2.0

2.5

0

OUTPUT VOLTAGE (V p-p)

RISE, G = 2

FALL, G = 2

FALL, G = 1

RISE, G = 1

Figure 28. Slew Rate vs. Output Voltage

0

–3.2

–2.8

–2.4

–2.0

–1.6

–1.2

–0.8

–0.4

24

22

20

18

16

14

12

10

8

2.5

5.0

4.5

4.0

3.5

3.0

CHARGE PUMP SUPPLY VOLTAGE (V)

AMPLIFIER

CURRENT

OUTPUT

VOLTAGE

CHARGE

PUMP CURRENT

Figure 29. Charge Pump Output Voltage and Current vs. Supply Voltage

20

18

16

14

12

10

8

6

4

2

0

100

1k

10k

100k

1M

FREQUENCY (Hz)

Figure 30. Input Voltage Noise vs. Frequency

1000

900

800

700

600

500

400

300

200

100

0

0.5

1.0

1.5

2.0

2.5

0

OUTPUT VOLTAGE (V p-p)

RISE, G = 1

RISE, G = 2

FALL, G = 1

FALL, G = 2

Figure 31. Slew Rate vs. Output Voltage

1.5

–1.5

–1.0

–0.5

0

0.5

1.0

6

5

4

3

2

1

0

TIME (400ns/DIV)

Figure 32. Enable/Power Down Time

100

90

80

70

60

50

40

30

20

10

0

100

1k

10k

100k

1M

FREQUENCY (Hz)

+IN

–IN

Figure 33. Input Current Noise vs. Frequency