Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
ADM8660 Datasheet(PDF) 1 Page - Analog Devices |
|
ADM8660 Datasheet(HTML) 1 Page - Analog Devices |
1 / 8 page The ADM660 is a pin compatible upgrade for the MAX660, MAX665, ICL7660 and LTC1046. The ADM660/ADM8660 is available in 8-pin DIP and narrow- body SOIC. The ADM660 is also available in a 16-lead TSSOP package. ADM660/ADM8660 Options Option ADM660 ADM8660 Inverting Mode Y Y Doubling Mode Y N External Oscillator Y N Shutdown N Y Package Options SO-8 Y Y N-8 Y Y RU-16 Y N REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a CMOS Switched-Capacitor Voltage Converters ADM660/ADM8660 FEATURES ADM660: Inverts or Doubles Input Supply Voltage ADM8660: Inverts Input Supply Voltage 100 mA Output Current Shutdown Function (ADM8660) 2.2 F or 10 F Capacitors 0.3 V Drop at 30 mA Load +1.5 V to +7 V Supply Low Power CMOS: 600 A Quiescent Current Selectable Charge Pump Frequency (25 kHz/120 kHz) Pin Compatible Upgrade for MAX660, MAX665, ICL7660 Available in 16-Lead TSSOP Package APPLICATIONS Handheld Instruments Portable Computers Remote Data Acquisition Op Amp Power Supplies TYPICAL CIRCUIT CONFIGURATIONS INVERTED NEGATIVE OUTPUT +1.5V TO +7V INPUT C1 10µF C2 10µF ADM660 V+ GND OUT LV OSC FC CAP+ CAP– Voltage Inverter Configuration (ADM660) INVERTED NEGATIVE OUTPUT +1.5V TO +7V INPUT C1 10µF C2 10µF ADM8660 V+ GND OUT LV FC CAP+ CAP– SD SHUTDOWN CONTROL Voltage Inverter Configuration with Shutdown (ADM8660) GENERAL DESCRIPTION The ADM660/ADM8660 is a charge-pump voltage converter that can be used to either invert the input supply voltage giving VOUT = –VIN or double it (ADM660 only) giving VOUT = 2 × V IN. Input voltages ranging from +1.5 V to +7 V can be inverted into a negative –1.5 V to –7 V output supply. This inverting scheme is ideal for generating a negative rail in single power supply systems. Only two small external capacitors are needed for the charge pump. Output currents up to 50 mA with greater than 90% efficiency are achievable, while 100 mA achieves greater than 80% efficiency. A Frequency Control (FC) input pin is used to select either 25 kHz or 120 kHz charge-pump operation. This is used to optimize capacitor size and quiescent current. With 25 kHz selected, a 10 µF external capacitor is suitable, while with 120 kHz the capacitor may be reduced to 2.2 µF. The oscillator frequency on the ADM660 can also be controlled with an exter- nal capacitor connected to the OSC input or by driving this in- put with an external clock. In applications where a higher supply voltage is desired it is possible to use the ADM660 to double the input voltage. With input voltages from 2.5 V to 7 V, output voltages from 5 V to 14 V are achievable with up to 100 mA output current. The ADM8660 features a low power shutdown (SD) pin in- stead of the external oscillator (OSC) pin. This can be used to disable the device and reduce the quiescent current to 300 nA. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 |
Número de pieza similar - ADM8660 |
|
Descripción similar - ADM8660 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |