Analog Devices LTC1446 Product Info

• Dual DACs with 12-Bit Resolution
• SO-8 Package
• Rail-to-Rail Output Amplifiers
• Internal Reference
• Maximum DNL Error: 0.5LSB
• 3V Operation (LTC1446L): I_CC = 650µA Typ
• 5V Operation (LTC1446): I_CC = 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