ADA4945-1ACPZ-R2 datasheet(30/44 Pages) AD

30 / 44 page

ADA4945-1

Data Sheet

Rev. 0 | Page 30 of 44

100

0.1

10M

FREQUENCY (Hz)

100

10k

100k

Figure 79. Current Noise Spectral Density

2.0

–10

2.0

TIME (µs)

–8

–6

–4

–2

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

SUPPLY CURRENT

1.8

DISABLE

Figure 80. DISABLE Pin Turn-Off Time

–8

0.4

–0.4

–20

180

TIME (ns)

–0.3

–0.2

–0.1

0.1

0.2

0.3

–6

–4

–2

100 120

140

%ERROR

OUTPUT

INPUT

VOUT, dm = 8V p-p

160

Figure 81. 0.1% Settling Time

100

0.1

0.01

0.1

100

FREQUENCY (MHz)

Figure 82. Closed-Loop Output Impedance Magnitude vs. Frequency, G = 1

1.2

–0.3

–7

4.0

TIME (µs)

–6

–4

–2

–1

–0.2

0.2

0.3

0.5

0.7

0.8

0.9

0.5

1.0

1.5

2.0

2.5

3.0

3.5

–5

–0.1

–3

0.1

0.4

0.6

1.0

1.1

DISABLE

+OUT, VICM = 1V

–OUT, VICM = 1V

Figure 83. DISABLE Pin Turn-On Time

100

–100

1000

TIME (ns)

–80

–60

–40

–20

100

300

200

400 500 600 700 800 900

VOUT, dm = 0.1V p-p

G = 1, RL = 1kΩ

G = 1, RL = 100Ω

G = 2, RL = 1kΩ

G = 2, RL = 100Ω

Figure 84. Small Signal Transient Response for Various Gains and Loads

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