Description

The MAX6800UR44D3+T is a monolithic, CMOS, dual charge-pump voltage converter specifically designed to provide ±10V outputs from a +5V input voltage. It features a positive step-up charge pump to generate +10V from +5V input and an inverting charge pump to produce the -10V output. The device has an on-chip 8kHz oscillator and offers a voltage-conversion efficiency of 95% and a power-conversion efficiency of 85%. With a voltage range of +2V to +6V, this converter requires either four external capacitors (MAX680) or no capacitors (MAX681) to produce the desired voltages. The MAX6800UR44D3+T is suitable for various applications that require both positive and negative voltages from a single supply.

Specifications and features

• Monolithic, CMOS design
• Allows conversion from +5V input to ±10V outputs
• 95% voltage-conversion efficiency
• 85% power-conversion efficiency
• Operating voltage range: +2V to +6V
• On-chip 8kHz oscillator
• No capacitors required (MAX681)
• Requires four external capacitors (MAX680)
• Low quiescent current of 500µA

Application Scenarios

The MAX6800UR44D3+T can be used in various applications where a single positive supply is available and both positive and negative voltages are required. Some common applications include:

• Generating ±6V from a 3V battery
• Hand-held instruments
• Data-acquisition systems
• Panel meters
• Generating ±10V from a +5V logic supply (for use with analog circuitry)
• Battery-operated equipment
• Operational amplifier power supplies

Comparison

The MAX6800UR44D3+T offers a high voltage-conversion efficiency of 95% and power-conversion efficiency of 85%, making it suitable for a variety of applications that require both positive and negative voltages from a single supply. Its monolithic CMOS design ensures reliable performance. However, the MAX6800UR44D3+T requires either four external capacitors (MAX680) or no capacitors (MAX681) depending on the desired output voltages. Additionally, the device has a low quiescent current of 500µA.

• High voltage-conversion efficiency of 95%
• Power-conversion efficiency of 85%
• Wide operating voltage range: +2V to +6V
• Monolithic CMOS design for reliable performance

• Requires either four external capacitors (MAX680) or no capacitors (MAX681)