ADM8660
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ADM8660

CMOS Switched-Capacitor Voltage Converter w/ Low Power Shutdown Pin

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.60
Features
  • ADM660: Inverts or Doubles Input Supply Voltage
  • ADM8660: Inverts Input Supply Voltage
  • 100 mA Output Current
  • Shutdown Function (ADM8660)
  • 2.2 µF or 10 µF Capacitors
  • 0.3 V Drop at 30 mA Load
  • +1.5 V to +7 V Supply
  • Low Power CMOS: 600 µA Quiescent Current
  • Selectable Charge Pump Frequency (25 kHz/120 kHz)
  • Pin Compatible Upgrade for MAX660, MAX665, ICL7660
  • Available in 16-Lead TSSOP Package
Additional Details
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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 × VIN. 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 external capacitor connected to the OSC input or by driving this input 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 instead of the external oscillator (OSC) pin. This can be used to disable the device and reduce the quiescent current to 300 nA.

APPLICATIONS

  • Handheld Instruments
  • Portable Computers
  • Remote Data Acquisition
  • Op Amp Power Supplies
Part Models 2
1ku List Price Starting From $2.60

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Product Lifecycle

PCN

Aug 19, 2009

- 07_0024

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Feb 3, 2009

- 08_0001

Qualification of 8" 3um BiCMOS wafer fab process at Analog Devices, Limerick, Ireland.

ADM8660ANZ

PRODUCTION

ADM8660ARZ

PRODUCTION

Dec 16, 2010

- 10_0356

Halogen Free Material Change for ADM8660- SOIC Product

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Aug 19, 2009

- 07_0024

arrow down

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Feb 3, 2009

- 08_0001

arrow down

Qualification of 8" 3um BiCMOS wafer fab process at Analog Devices, Limerick, Ireland.

ADM8660ANZ

PRODUCTION

ADM8660ARZ

PRODUCTION

Dec 16, 2010

- 10_0356

arrow down

Halogen Free Material Change for ADM8660- SOIC Product

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