DAC81416RHAR

The DAC81416, DAC71416, and DAC61416 (DACx1416) are a series of 16-channel buffered high-voltage output digital-to-analog converters (DACs) with pin compatibility and 16-bit, 14-bit, and 12-bit resolutions. The DACx1416 includes a low-drift 2.5V internal voltage reference, eliminating the need for an external precision reference in most applications. These devices are monotonic and offer high linearity of ±1LSB INL. Users can select the output configuration, including full-scale bipolar output voltages of ±20V, ±10V, ±5V, or ±2.5V, as well as full-scale unipolar output voltages of 40V, 20V, 10V, and 5V. Moreover, the full-scale output range of each DAC channel is independently programmable. The integrated DAC output buffer can sink or source up to 25 mA, reducing the need for additional operational amplifiers. Each channel pair can be configured to provide a differentially output with offset calibration. Up to three frequencies of dither signals can be generated through three dedicated A - B switching pins. The DACx1416 includes a power-on reset circuit that connects the DAC outputs to ground upon power-up. The outputs remain in this state until the device registers are properly configured for operation. Communication with the DACx1416 is via a 4-wire serial interface that supports an operating voltage of 1.7V to 5.5V.

Applications

• Intra-data center interconnects (long-haul, undersea)
• Inter-data center interconnects (metro)
• Optical modules
• Semiconductor test
• Lab and field instrumentation
• Data acquisition (DAQ)

Key features

• Monotonic INL at 16-bit resolution: ±1LSB (max) at 16-bit resolution
• TUE: ±0.1% of FSR (max)
• Integrated 2.5V precision internal reference
• Initial accuracy: ±2.5 mV (max)
• Low drift: 5 ppm/°C (typical)
• Flexible output configuration
• Output range: ±2.5V, ±5V, ±10V, ±20V, 0 to 5V, 0 to 10V, 0 to 20V, 0 to 40V
• Differential output mode
• High drive capability: ±25 mA, 1.5V swing from supply rails
• Three dedicated A-B toggle pins for dither signal generation
• Analog temperature output
• Sensor gain of -4 mV/°C
• 50MHz SPI-compatible serial interface
• 4-wire mode, operating voltage 1.7V to 5.5V
• Daisy-chain operation
• CRC error checking
• Temperature range: -40°C to +125°C
• Small package
• 6 mm×6 mm, 40-pin VQFN