MAX521
Quad/Octal, 2-Wire Serial 8-Bit DACs with Rail-to-Rail Outputs
Serial Interface Compatible with I²C and SMBus™
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Overview
Features and Benefits
- Single +5V Supply
- Simple 2-Wire Serial Interface
- I²C Compatible
- Outputs Swing Rail to Rail:
- Unbuffered Outputs (MAX520)
- Buffered Outputs (MAX521)
- 1%-Accurate Trimmed Output Resistance (MAX520A)
- Ultra-Low 4µA Supply Current (MAX520)
- Individual DACs Have Separate Reference Inputs
- Power-On Reset Clears All Latches
- 4µA Power-Down Mode
Product Details
The MAX520/MAX521 are quad/octal, 8-bit voltage-output digital-to-analog converters (DACs) with simple 2-wire serial interfaces that allow communication between multiple devices. They operate from a single +5V supply and their reference input range includes both supply rails.
The MAX521 includes rail-to-rail output buffer amplifiers for reduced system size and component count when driving loads. The MAX520's unbuffered voltage outputs reduce the device's total supply current to 4µA and provide increased accuracy at low output currents.
The MAX520/MAX521 feature a serial interface and internal software protocol, allowing communication at data rates up to 400kbps. The interface, combined with the double-buffered input configuration, allows the DAC registers to be updated individually or simultaneously. In addition, the devices can be put into a low-power shutdown mode that reduces supply current to 4µA. Power-on reset ensures the DAC outputs are at 0V when power is initially applied.
The MAX520 is available in 16-pin DIP and wide SO packages, as well as a space-saving 20-pin SSOP. The MAX521 comes in 20-pin DIP and 24-pin SO packages, as well as a space-saving 24-pin SSOP.
Applications
- Digital Gain and Offset Control
- General Purpose
- Industrial Process Controls
- Programmable Attenuators
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
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MAX521 Reliability Data1/12/2023
Product Recommendations
MAX521 Companion Parts
Design 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.View our quality and reliability program and certifications for more information.
Support & Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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