Overview

Features and Benefits

  • True 18-bit voltage output DAC, ±1 LSB INL
  • 8 nV/√Hz output noise spectral density
  • 0.025 LSB long-term linearity error stability
  • ±0.018 ppm/°C gain error temperature coefficient
  • 2.5 µs output voltage settling time
  • 3.5 nV-sec midscale glitch impulse
  • Integrated precision reference buffers
  • Operating temperature range: −40°C to +125°C
  • 4 mm × 5 mm LFCSP package
  • Wide power supply range of up to ±16.5 V
  • 35 MHz Schmitt triggered digital interface
  • 1.8 V-compatible digital interface

Product Details

The AD5780 is a true 18-bit, unbuffered voltage output digitalto-analog converter (DAC) that operates from a bipolar supply of up to 33 V. The AD5780 accepts a positive reference input range of 5 V to VDD − 2.5 V and a negative reference input range of VSS + 2.5 V to 0 V. Both reference inputs are buffered on chip and external buffers are not required. The AD5780 offers a relative accuracy specification of ±1 LSB maximum range, and operation is guaranteed monotonic with a ±1 LSB differential nonlinearity (DNL) maximum range specification.

The part uses a versatile 3-wire serial interface that operates at clock rates of up to 35 MHz and is compatible with standard serial peripheral interface (SPI), QSPI™, MICROWIRE™, and DSP interface standards. The part incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V in a known output impedance state and remains in this state until a valid write to the device takes place. The part provides an output clamp feature that places the output in a defined load state.

Product Highlights

  1. True 18-bit accuracy.
  2. Wide power supply range of up to ±16.5 V.
  3. −40°C to +125°C operating temperature range.
  4. Low 8 nV/√Hz noise.
  5. Low ±0.018 ppm/°C gain error temperature coefficient.

Applications
  • Medical instrumentation
  • Test and measurement
  • Industrial control
  • Scientific and aerospace instrumentation
  • Data acquisition systems
  • Digital gain and offset adjustment
  • Power supply control

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Reference Designs (1)

Product Recommendations

AD5780 Companion Parts

Recommended Output Amplifier

  • For high precision, wide bandwidth, R-R output swing: AD8675.
  • For high voltage, high slew rates and low noise: ADA4898-1.
  • For high precision, low noise, small package: ADA4004-1.

Recommended External Reference

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Discussions

AD5780 Discussions

RE: Questions on SPI and RESET of AD5780
15 week(s) ago in Precision DACs
RE: AD5780 Help!
15 week(s) ago in Precision DACs
RE: AD5780 and the MSP430F5529
15 week(s) ago in Precision DACs
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.