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Signal Processing Technologies
SP782CT Programmable Charge Pump

The SP782 and SP784 are monolithic programmable voltage converters that produce a positive and negative voltage from a single supply. The SP782 and SP784 are programmable such that the charge pump outputs either a ±10V voltage or a ±5V voltage by control of two pins. Both products require four (4) charge pump capacitors to support the resulting output voltages. The charge pump architecture (U.S. 5,760,637) is fabricated using a low power BiCMOS process technology.
The SP782 and SP784 charge pumps can be powered from a single +5V supply. The low power consumption makes these charge pumps ideal for battery operated equipment. Both offer a shutdown feature that saves battery life. A system can essentially have four (4) different supply voltages from a single battery. Typical applications are handheld instruments, notebook and laptop computers, and data acquisition systems.

■ +5V Only Low Power Voltage Conversion
■ Programmable Between ±5V or ±10V
■ Low Power Shutdown Mode

■ RS-232/RS-423 transceiver power supplies
■ LCD BIAS Generator
■ OP-Amp Power Supplies

other parts : SP782  SP784  SP782CP  SP784CP  SP784CT  


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