LTC2686IUJ-16#PBF

LTC2686IUJ-16#PBF is a 16bit, ±15V digital-to-analogue converter (DAC) with an integrated precision reference. The LTC2686 is guaranteed monotonic and has built-in rail-to-rail output buffers that can source or sink up to 55mA. This SoftSpan™ DAC offers five output ranges up to ±15V. The range of each channel is independently programmable. The internal 4.096 V precision reference sets the accuracy of the output voltage. An external reference can be used for an additional range of options. Three toggle pins support Input Register A and Input Register B toggle or sinusoidal dither at multiple frequencies. An analogue multiplexer simplifies measurement of pin voltages, load currents, and junction temperature. Programmable offset and gain registers improve the accuracy of the DAC outputs. Applications include optical networking, instrumentation, data acquisition, automatic test equipment, process control, and industrial automation.

• Eight independent SoftSpan DAC channels, A/B toggle or sinusoidal dither using up to 3 toggle pins
• Multiplexer for output voltage and load current sense
• Differential nonlinearity is ±1LSB maximum at (TA = 25°C, VCC = 5V)
• Integral nonlinearity is ±3LSB maximum at (TA = 25°C, VCC = 5V)
• VOS temperature coefficient is 1ppm/°C typical at (TA = 25°C, VCC = 5V)
• Power supply rejection ratio is -90dB typical at (VCC = 5V ±5%)
• Output voltage noise density is 32nV/√Hz typ at (TA = 25°C, VCC = 5V)
• VCC shutdown supply current is 20μA typical at (VCC = 5V, TA = 25°C)
• Voltage output slew rate is <gt/>3.5V/μs typical at (TA = 25°C, VCC = 5V, IOVCC = 5V)
• Operating temperature range from -40°C to +85°C, 40-lead LFCSP package

注释

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