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ADP7182ACPZ-R7 数据表(PDF) 16 Page - Analog Devices |
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ADP7182ACPZ-R7 数据表(HTML) 16 Page - Analog Devices |
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16 / 31 page ![]() ADP7182 Data Sheet Rev. I | Page 16 of 31 0 –80 –70 –60 –50 –40 –30 –20 –10 1.0 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 HEADROOM VOLTAGE (V) FREQUENCY = 100Hz FREQUENCY = 1kHz FREQUENCY = 10kHz FREQUENCY = 100kHz FREQUENCY = 1MHz FREQUENCY = 10MHz Figure 51. Power Supply Rejection Ratio (PSRR) vs. Headroom Voltage, VOUT = −1.22 V, Load Current (ILOAD) = −200 mA 0 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) ILOAD = –200mA ILOAD = –100mA ILOAD = –10mA ILOAD = –1mA Figure 52. Power Supply Rejection Ratio (PSRR) vs. Frequency, VOUT = −1.8 V vs. Different Load Currents (ILOAD), VIN = −2.8 V 0 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) ILOAD = –200mA ILOAD = –100mA ILOAD = –10mA ILOAD = –1mA Figure 53. Power Supply Rejection Ratio (PSRR) vs. Frequency, VOUT = −1.8 V vs. Different Load Currents (ILOAD), VIN = −5.5 V 0 –80 –70 –60 –50 –40 –30 –20 –10 1.0 4.0 3.5 3.0 2.5 2.0 1.5 HEADROOM VOLTAGE (V) FREQUENCY = 100Hz FREQUENCY = 1kHz FREQUENCY = 10kHz FREQUENCY = 100kHz FREQUENCY = 1MHz FREQUENCY = 10MHz Figure 54. Power Supply Rejection Ratio (PSRR) vs. Headroom Voltage, VOUT = −1.8 V, Load Current (ILOAD) = −200 mA 0 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) ILOAD = –200mA ILOAD = –100mA ILOAD = –10mA ILOAD = –1mA Figure 55. Power Supply Rejection Ratio (PSRR) vs. Frequency, VOUT = −3 V vs. Different Load Currents (ILOAD), VIN = −4.0 V 0 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) ILOAD = –200mA ILOAD = –100mA ILOAD = –10mA ILOAD = –1mA Figure 56. Power Supply Rejection Ratio (PSRR) vs. Frequency, VOUT = −3 V vs. Different Load Currents (ILOAD), VIN = −5.5 V |
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