LTC1446
PRODUCTIONDual 12-Bit Rail-to-Rail Micropower DACs in SO-8
Part Details
- 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
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
Documentation
Data Sheet 1
Reliability Data 1
Application Note 1
Design Note 3
Product Selector Card 2
This is the most up-to-date revision of the Data Sheet.
Software Resources
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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.
Open Tool