LTC2688CUJ-12#PBF

LTC2688CUJ-12#PBF is a 16-channel, 12bit, ±15V SoftSpan digital-to-analogue converter (DAC) with an integrated precision reference. It is guaranteed monotonic and has built in rail-to-rail output buffers that can source or sink upto 20mA. This SoftSpan™ DAC offers five output ranges upto ±15V. The range of each channel is independently programmable. The internal 4.096V precision reference sets the accuracy of the output voltage. An external reference can be used for additional range 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. It is used in applications such as optical networking, instrumentation, data acquisition, automatic test equipment, process control and industrial automation.

• Multiplexer for output voltage and load current sense, flexible single- or dual-supply operation
• Differential nonlinearity is ±0.25LSB maximum at (TA = 25°C, VCC = 5V)
• Integral nonlinearity is ±0.75LSB maximum at (TA = 25°C, VCC = 5V)
• Reference temperature coefficient is 2ppm/°C typical at (TA = 25°C, VCC = 5V)
• Power supply rejection is -80dB typical at (VCC = 5V ±5%)
• Gain error is ±0.08% FSR maximum at (A = 25°C, VCC = 5V)
• Load regulation is 70μV/mA typ at (-20mA ≤ IOUT ≤ +20mA, Vx+ = +17.2V, V- =-17.2V, ±15V range)
• Output voltage noise density is 32nV/√Hz typical at (TA = 25°C, VCC = 5V)
• Operating temperature range from 0°C to +70°C
• 40-lead LFCSP package

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