Maxim Integrated MAX681
The MAX681 has the capacitors internal to the package, and the MAX680 requires four external capacitors to produce both positive and negative voltages from a single supply. The output source impedances are typically 150Ω, providing useful output currents up to 10mA. The low quiescent current and high efficiency make this device suitable for a variety of applications that need both positive and negative voltages generated from a single supply.| Part No. | MAX681 |
|---|---|
| Datasheet | MAX681 Download |
| Manufacturer |  Maxim Integrated |
| Description | +5V to 10V Voltage Converters |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The MAX680/MAX681 are monolithic, CMOS, dual chargepump voltage converters that provide ±10V outputs from a +5V input voltage. The MAX680/MAX681 provide both a positive step-up charge pump to develop +10V from +5V input and an inverting charge pump to generate the -10V output. Both parts have an on-chip, 8kHz oscillator. The MAX864/MAX865 are also recommended for new designs. The MAX864 operates at up to 200kHz and uses smaller capacitors. The MAX865 comes in the smaller µMAX package.APPLICATIONS
The MAX680/MAX681 can be used wherever a single positive supply is available and where positive and negative voltages are required. Common applications include generating ±6V from a 3V battery and generating ±10V from the standard +5V logic supply (for use with analog circuitry). Typical applications include:●● ±6V from 3V Lithium Cell
●● Hand-Held Instruments
●● Data-Acquisition Systems
●● Panel Meters
●● ±10V from +5V Logic Supply
●● Battery-Operated Equipment
●● Operat...
