ADP7112ACBZ-1.8-R7 datasheet(11/21 Pages) AD

11 / 21 page

Data Sheet

ADP7112

Rev. D | Page 11 of 21

10M

100k

10k

100

FREQUENCY (Hz)

–120

–100

–80

–60

–40

–20

3.0V

2.0V

1.6V

1.4V

1.2V

1.0V

800mV

700mV

600mV

500mV

Figure 28. Power Supply Rejection Ratio (PSRR) vs. Frequency, VOUT = 5 V,

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

10Hz

100Hz

1kHz

10kHz

100kHz

1MHz

10MHz

Figure 29. Power Supply Rejection Ratio (PSRR) vs. Headroom Voltage,

VOUT = 5 V, for Different Frequencies

100

1000

LOAD CURRENT (mA)

10Hz TO 100kHz

100Hz TO 100kHz

Figure 30. RMS Output Noise vs. Load Current

FREQUENCY (Hz)

10M

100

10k

100k

100

10k

Figure 31. Output Noise Spectral Density vs. Frequency, ILOAD = 10 mA

FREQUENCY (Hz)

10M

100

10k

100k

100

10k

100k

100µA

1mA

10mA

100mA

200mA

Figure 32. Output Noise Spectral Density vs. Frequency, for Different Loads

FREQUENCY (Hz)

10M

100

10k

100k

100

10k

100k

1.8V

3.3V

5.0V

Figure 33. Output Noise Spectral Density vs. Frequency, for

Different Output Voltages

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