Overview
Features and Benefits
- Dual DACs with 12-Bit Resolution
- SO-8 Package
- Rail-to-Rail Output Amplifiers
- Internal Reference
- Maximum DNL Error: 0.5LSB
- 3V Operation (LTC1446L): ICC = 650µA Typ
- 5V Operation (LTC1446): ICC = 1000µA Typ
- Settling Time: 14µs to ±0.5LSB
- Power-on Reset Clears DACs to 0V
- 3-Wire Cascadable Serial Interface with 500kHz Update Rate
- Schmitt Trigger On Input Allows Direct Optocoupler Interface
- Low Cost
Product Details
The LTC1446/LTC1446L are dual 12-bit digital-to-analog converters (DACs) available in an SO-8 package. They are complete with a rail-to-rail voltage output amplifier, an internal reference and an easy-to-use 3-wire cascadable serial interface.
The LTC1446 has an internal reference and a full-scale output of 4.095V. It operates from a single 4.5V to 5.5V supply.
The LTC1446L has an internal reference and a full-scale output of 2.5V. It operates from a single 2.7V to 5.5V supply.
The low power supply current makes the LTC1446 family ideal for battery-powered applications. These DACs are available in space saving 8-pin SO and PDIP packages and require no external components for operation.
Applications
- Digital Calibration
- Industrial Process Control
- Automatic Test Equipment
- Cellular Telephones
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
-
R392 Reliability Data3/22/2018
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DAC Selector Card9/21/2015
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Voltage Output DACs3/3/2011
Tools & Simulations
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
Product Recommendations
LTC1446 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.
PCN-PDN Information
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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
Please see the latest communication from our CCO regarding lead times.
Sampling
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