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AD5780
System Ready, 18-Bit ±1 LSB INL, Voltage Output DAC
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
- True 18-bit accuracy.
- Wide power supply range of up to ±16.5 V.
- −40°C to +125°C operating temperature range.
- Low 8 nV/√Hz noise.
- 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
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)
Documentation
Software & Systems Requirements
Tools & Simulations
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
Reference Designs (1)
Reference Materials
Solutions Bulletins & Brochures (1)
AD5780 System Ready, 18-Bit, Ultra Low Noise DAC
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
Support & Discussions
AD5780 Discussions
Sample & Buy
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.
