LTC2666HUH-12#PBF

LTC2666HUH-12#PBF is an 8-channel, 12bit ±10V digital-to-analogue converter with integrated precision references. These DACs 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/microwave-compatible 3-wire serial interface operates on logic levels as low as 1.71V at clock rates up to 50MHz. Applications include optical networking, instrumentation, data acquisition, automatic test equipment, process control and industrial automation.

• 8:1 analogue multiplexer, A/B toggle via software or dedicated pin
• Guaranteed monotonic over temperature, 1.8V to 5V SPI serial interface
• Differential nonlinearity is ±0.05LSB typical at (TA = 25°C, VCC = 5V, IOVCC = 5V)
• Integral nonlinearity is ±0.2LSB typical at (TA = 25°C, VCC = 5V, IOVCC = 5V)
• Gain error is ±0.02%FSR typical at (TA = 25°C, VCC = 5V, IOVCC = 5V)
• Load regulation is 78µV/mA typical at (–10mA ≤ IOUT ≤ 10mA)
• DC output impedance is 0.078 ohm typical at (–10mA ≤ IOUT ≤ 10mA)
• Supply current VCC is 2.8mA typical at (VCC = 5V, unipolar ranges)
• Temperature coefficient is -3.7mV/°C typical at (TA = 25°C, VCC = 5V, IOVCC = 5V)
• Operating temperature range from -40°C to 125°C, 32-lead QFN package

附註

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