Data Sheet

ADP7118

Rev. F | Page 11 of 24

10

10M

1M

100k

10k

1k

100

FREQUENCY (Hz)

–120

–100

–80

–60

–40

–20

0

3.0V

2.0V

1.6V

1.4V

1.2V

1.0V

800mV

700mV

600mV

500mV

for Various Headroom Voltages

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0

HEADROOM VOLTAGE (V)

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

0

10Hz

100Hz

1kHz

10kHz

100kHz

1MHz

10MHz

Figure 31. Power Supply Rejection Ratio (PSRR) vs. Headroom Voltage,

1

10

100

1000

LOAD CURRENT (mA)

0

4

8

12

16

20

10Hz TO 100kHz

100Hz TO 100kHz

Figure 32. RMS Output Noise vs. Load Current

FREQUENCY (Hz)

10M

1

10

100

1k

10k

100k

1M

1

10

100

1k

10k

FREQUENCY (Hz)

10M

1

10

100

1k

10k

100k

1M

1

10

100

1k

10k

100k

100µA

1mA

10mA

100mA

200mA

Figure 34. Output Noise Spectral Density vs. Frequency, for Different Loads

FREQUENCY (Hz)

10M

1

10

100

1k

10k

100k

1M

1

10

100

1k

10k

100k

1.8V

3.3V

5.0V

Figure 35. Output Noise Spectral Density vs. Frequency for

Different Output Voltages