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LTC2666 - Octal 16-Bit/12-Bit ±10V VOUT SoftSpan DACs with 10ppm/°C Max Reference

The LTC®2666 is a family of 8-channel, 16-/12-bit ±10V digital-to-analog converters with integrated precision references. They are guaranteed monotonic and have built-in rail-to-rail output buffers. These SoftSpan™ DACs offer five output ranges up to ±10V. The range of each channel is independently programmable, or the part can be hardware-configured for operation in a fixed range.

The integrated 2.5V reference is buffered separately to each channel; an external reference can be used for additional range options. The LTC2666 also includes A/B toggle capability via a dedicated pin or software toggle command.

The SPI/Microwire-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates up to 50MHz.

Features Precision Reference 10ppm/°C Max Independently Programmable Output Ranges: 0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V Full 16-Bit/12-Bit Resolution at All Ranges Maximum INL Error: ±4LSB at 16 Bits A/B Toggle via Software or Dedicated Pin 8:1 Analog Multiplexer Guaranteed Monotonic Over Temperature Internal or External Reference Outputs Drive ±10mA Guaranteed 1.8V to 5V SPI Serial interface 32-Lead (5mm × 5mm) QFN Package Typical Application

Applications Optical Networking Instrumentation Data Acquisition Automatic Test Equipment Process Control and Industrial Automation Packaging

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