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ADM8660ARZ Datasheet(PDF) 4 Page - Analog Devices |
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ADM8660ARZ Datasheet(HTML) 4 Page - Analog Devices |
4 / 11 page REV. –4– ADM660/ADM8660 Doubler Configuration (ADM660 Only) Mnemonic Function FC Frequency Control Input for Internal Oscillator and Charge Pump. With FC = Open, fCP = 25 kHz; with FC = V+, fCP = 120 kHz. CAP+ Positive Charge-Pump Capacitor Terminal. GND Positive Input Supply. CAP– Negative Charge-Pump Capacitor Terminal. OUT Ground. LV Low Voltage Operation Input. Connect to OUT. OSC Must be left unconnected in this mode. V+ Doubled Positive Output. PIN CONNECTIONS 8-Lead 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) ADM660 FC OUT LV OSC V+ CAP+ GND CAP– 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) ADM8660 FC OUT LV SD V+ CAP+ GND CAP– 16-Lead 14 13 12 11 16 15 10 9 8 1 2 3 4 7 6 5 TOP VIEW (Not to Scale) ADM660 NC = NO CONNECT NC OSC V+ NC NC NC FC CAP+ NC OUT LV GND CAP– NC NC NC Inverter Configuration Mnemonic Function FC Frequency Control Input for Internal Oscillator and Charge Pump. With FC = Open (ADM660) or connected to GND (ADM8660), fCP = 25 kHz; with FC = V+, fCP = 120 kHz. CAP+ Positive Charge-Pump Capacitor Terminal. GND Power Supply Ground. CAP– Negative Charge-Pump Capacitor Terminal. OUT Output, Negative Voltage. LV Low Voltage Operation Input. Connect to GND when input voltage is less than 3.5 V. Above 3.5 V, LV may be connected to GND or left unconnected. OSC ADM660: Oscillator Control Input. OSC is connected to an internal 15 pF capacitor. An external capacitor may be connected to slow the oscillator. An external oscillator may also be used to overdrive OSC. The charge-pump frequency is equal to 1/2 the oscillator frequency. SD ADM8660: Shutdown Control Input. This in- put, when high, is used to disable the charge pump thereby reducing the power consumption. V+ Positive Power Supply Input. PIN FUNCTION DESCRIPTIONS C |
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