LTC2666 Datasheet

• 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

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

The LTC2666 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.