ADM660AN Datasheet PDF - ADI

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 X 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.

●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

●APPLICATIONS

●  Handheld Instruments

●  Portable Computers

●  Remote Data Acquisition

●  Op Amp Power Supplies