Features and Benefits
- 12-Bit Resolution, ±0.5 LSB Linearity
- +5V Single-Supply Operation
- User-Adjustable Logic Level (+2.7V to +5.5V)
- Internal +2.5V Reference
- Software-Configurable Analog Input Multiplexer
- 8-Channel Single Ended/4-Channel Pseudo-Differential (MAX1262)
- 4-Channel Single Ended/2-Channel Pseudo-Differential (MAX1264)
- Software-Configurable Unipolar/Bipolar Analog Inputs
- Low Current
- 2.5mA (400ksps)
- 1.0mA (100ksps)
- 400µA (10ksps)
- 2µA (Shutdown)
- Internal 6MHz Full-Power Bandwidth Track/Hold
- Byte-Wide Parallel (8 + 4) Interface
- Small Footprint
- 28-Pin QSOP (MAX1262)
- 24-Pin QSOP (MAX1264)
The MAX1262/MAX1264 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, byte-wide parallel interface. The devices operate with a single +5V analog supply and feature a VLOGIC pin that allows them to interface directly with a +2.7V to +5.5V digital supply.
Power consumption is only 10mW (VDD = VLOGIC) at a 400ksps max sampling rate. Two software-selectable power-down modes enable the MAX1262/MAX1264 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can cut supply current to under 10µA at reduced sampling rates.
Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1262 has eight input channels and the MAX1264 has four input channels (four and two input channels, 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 MAX1262 is available in a 28-pin QSOP package, while the MAX1264 comes in a 24-pin QSOP. For pin-compatible +3V, 12-bit versions, refer to the MAX1261/MAX1263 data sheet.
- 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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