Features and Benefits
- 12-Bit Resolution, ±0.5 LSB Linearity
- Single +5V Operation
- Internal +2.5V Reference
- Software-Configurable Analog Input Multiplexer
- 6-Channel Single Ended/3-Channel Pseudo-Differential (MAX1266)
- 2-Channel Single Ended/1-Channel Pseudo-Differential (MAX1268)
- Software-Configurable Unipolar/Bipolar Analog Inputs
- Low Current
- 2.8mA (420ksps)
- 1.0mA (100ksps)
- 400µA (10ksps)
- 2µA (Shutdown)
- Internal 6MHz Full-Power Bandwidth Track/Hold
- Parallel 12-Bit Interface
- Small Footprint
- 28-Pin QSOP (MAX1266)
- 24-Pin QSOP (MAX1268)
The MAX1266/MAX1268 low-power, 12-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed 12-bit parallel interface. They operate with a single +5V analog supply.
Power consumption is only 10mW at the maximum sampling rate of 420ksps. Two software-selectable power-down modes enable the MAX1266/MAX1268 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can reduce supply below 10µA at lower sampling rates.
Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1266 has six input channels and the MAX1268 has two (three input channels and one input channel, respectively, when in pseudo-differential mode).
Excellent dynamic performance and low power, combined with ease of use and small package size, make these converters ideal for battery-powered and data-acquisition applications or for other circuits with demanding power-consumption and space requirements. The MAX1266 is offered in a 28-pin QSOP package, while the MAX1268 is available in a 24-pin QSOP. For pin-compatible +3V, 12-bit versions, see the MAX1265/MAX1267.
- Data Acquisition Systems
- Data Logging
- Energy Management
- Industrial Controls Systems
- Patient Monitoring
- Touch Screens
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
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.
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