MAX680
MAX680
PRODUCTION+5V to ±10V Voltage Converters
Generates Positive and Negative Doubled Outputs Simultaneously
- Part Models
- 7
- 1ku List Price
- Starting From $3.37
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Overview
- 95% Voltage-Conversion Efficiency
- 85% Power-Conversion Efficiency
- +2V to +6V Voltage Range
- Only Four External Capacitors Required (MAX680)
- No Capacitors Required (MAX681)
- 500µA Supply Current
- Monolithic CMOS Design
The MAX680/MAX681 are monolithic, CMOS, dual charge-pump 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 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.
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
- ±10V from +5V Logic Supply
- ±6V from 3V Lithium Cell
- Battery-Powered Applications
- Data Acquisition
- Handheld Instruments (PDAs, Palmtops)
- Operational Amplifier Power Supplies
- Panel Meters
Documentation
Data Sheet 2
Design Note 1
Technical Articles 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX680CPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX680CSA+ | Small-Outline IC Narrow (0.15in) | ||
| MAX680CSA+T | Small-Outline IC Narrow (0.15in) | ||
| MAX680EPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX680ESA+ | Small-Outline IC Narrow (0.15in) | ||
| MAX680ESA+T | Small-Outline IC Narrow (0.15in) | ||
| MAX680MJA | Ceramic Dual-In-Line, Narrow (0.3in) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Charge Pumps 1 | ||
| MAX864 | PRODUCTION | Dual-Output Charge Pump with Shutdown |
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