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AN-1519: 16-Bit, Fully Isolated Output Module Using the AD5422 Single-Chip Voltage and Current Output DAC and the ADuM1401 Digital Isolator (Rev. C)2/7/2018
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AN-1313: Configuring the AD5422 to Combine Output Current and Output Voltage to a Single Output Pin (Rev. 0)2/14/2015
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AN-1241: Simplified 16-Bit Voltage Output and 4 mA-to-20 mA Output Solution Using the AD5422 (Rev. A)5/8/2013
AD5422
Single Channel, 16-Bit, Current Source & Voltage Output DAC, HART Connectivity
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Overview
Features and Benefits
- 16-bit resolution and monotonicity
- Current output ranges: 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA
- ±0.01% FSR typical total unadjusted error (TUE)
- ±3 ppm FSR/°C output drift
- Voltage output ranges: 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V
- 10% overrange
- ±0.01% FSR typical TUE
- ±2 ppm FSR/°C output drift
- Flexible serial digital interface
- On-chip output fault detection
- On-chip reference: 10 ppm/°C maximum
- Optional regulated DVCC output
- Asynchronous clear function
- Power supply range
- AVDD: 10.8 V to 40 V
- AVSS: −26.4 V to −3 V/0 V
- Current loop compliance voltage: AVDD – 2.5 V
- Temperature range: −40°C to +105°C
- TSSOP and LFCSP packages
Product Details
The AD5412/AD5422 are low cost, precision, fully integrated 12-/16-bit digital-to-analog converters (DAC) offering a programmable current source and programmable voltage output designed to meet the requirements of industrial process control applications.
The output current range is programmable at 4 mA to 20 mA, 0 mA to 20 mA, or an overrange function of 0 mA to 24 mA.
The LFCSP version of this product has a CAP2 pin so that the HART signals can be coupled onto the current output of the AD5412/AD5422.
Voltage output is provided from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V output ranges; an overrange of 10% is available on all ranges.
Analog outputs are short and open-circuit protected and can drive capacitive loads of 1 μF.
The device operates with an AVDD power supply range from 10.8 V to 40 V. Current loop compliance voltage is 0 V to AVDD − 2.5 V.
The flexible serial interface is SPI- and MICROWIRE™-compatible and can be operated in 3-wire mode to minimize the digital isolation required in isolated applications.
The device also includes a power-on-reset function, ensuring that the device powers up in a known state. The part also includes an asynchronous clear pin (CLEAR) that sets the outputs to zero-scale/midscale voltage output or the low end of the selected current range.
The total output error is typically ±0.01% in current mode and ±0.01% in voltage mode.
Applications
- Process controls
- Actuator controls
- PLC
- HART network connectivity (LFCSP package only)
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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CN0278: Complete 4 mA to 20 mA HART Solution with Additional Voltage Output Capability5/2/2014
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CN-0321: Fully Isolated, Single Channel Voltage and 4 mA to 20 mA Output with HART Connectivity8/13/2013
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CN-0233: 16-Bit Isolated Industrial Voltage and Current Output DAC with Isolated DC-to-DC Supplies4/3/2012
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HART Communication Networks Are Improved by Small, Flexible, Low-Power Modem ICs10/1/2012 Analog Dialogue
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Part 2: Simplifying Design of Industrial Process-Control Systems with PLC Evaluation Boards9/10/2009
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Part 1: Simplifying Design of Industrial Process-Control Systems with PLC Evaluation Boards9/10/2009
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PLC Evaluation Board Simplifies Design of Industrial Process-Control systems4/1/2009 Analog Dialogue
Software & Systems Requirements
Evaluation Software
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 (3)
Product Recommendations
AD5422 Companion Parts
Recommended Digital Isolators
- For process control applications: ADUM1400, ADUM1401, ADUM1200, ADUM1201.
- For digital isolators with integrated isolated power: ADUM5401, ADUM5402, ADUM5403.
- For isolated USB designs in healthcare and industrial control: ADUM4160.
- For cost sensitive designs: ADUM7440, ADUM7441, ADUM7442.
Recommended Low Power Hart Modem
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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD5422ACPZ-REEL | Material Declaration | Reliability Data | 40-Lead LFCSP (6mm x 6mm w/ EP) | |
| AD5422ACPZ-REEL7 | Material Declaration | Reliability Data | 40-Lead LFCSP (6mm x 6mm w/ EP) | |
| AD5422AREZ | Material Declaration | Reliability Data | 24-Lead TSSOP w/ EP | |
| AD5422AREZ-REEL | Material Declaration | Reliability Data | 24-Lead TSSOP w/ EP | |
| AD5422BCPZ-REEL | Material Declaration | Reliability Data | 40-Lead LFCSP (6mm x 6mm w/ EP) | |
| AD5422BCPZ-REEL7 | Material Declaration | Reliability Data | 40-Lead LFCSP (6mm x 6mm w/ EP) | |
| AD5422BREZ | Material Declaration | Reliability Data | 24-Lead TSSOP w/ EP | |
| AD5422BREZ-REEL | Material Declaration | Reliability Data | 24-Lead TSSOP w/ EP | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
AD5422 Discussions
RE: AD5422 SPI communication
25 week(s) ago in Precision DACs
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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Lead Times
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Sampling
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Evaluation Boards
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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.