AD420AR-32 Analog Devices Integrated Circuit (Other) In Stock
Analog Devices AD420AR-32 is a 16-bit digital-to-analog converter with serial binary input and up to 5 V analog output in a 24-pin SOIC package. It delivers high-resolution signal conversion for industrial process control and instrumentation systems requiring precise analog outputs. Available in stock with worldwide shipping for embedded control and measurement applications.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 24
- Lifecycle
- OBSOLETE
- Datasheet
- AD420AR-32 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of AD420AR-32?
- 16-bit resolution DAC providing 65536 discrete output levels for precise analog signal generation in industrial process control
- Serial binary input interface simplifying 3-wire SPI connection to microcontrollers and DSPs with minimal GPIO usage
- Up to 5 V analog output range compatible with standard 4-20 mA current loop transmitters and 0-10 V process control signals
- 24-pin SOIC package with low power operation enabling integration into compact industrial transmitter and data acquisition boards
What is AD420AR-32 used for?
The AD420AR-32 is used in industrial process control transmitters and programmable logic controllers where 16-bit DAC resolution is needed to drive 4-20 mA current loops or precision voltage outputs with minimal quantization error. Its serial interface simplifies board layout in multi-channel instrumentation systems such as pressure, temperature, and flow transmitters. The 5 V analog output range also makes it suitable for generating reference waveforms in automated test equipment and calibration systems.
What are the specifications of AD420AR-32?
| Source Url Status Check Date | 2013-05-01 14:56:09.705 |
| Pbfree Code | No |
| Manufacturer Package Code | RW-24 |
| YTEOL | 0 |
| Analog Output Voltage-Max | 5V |
| Converter Type | D/A CONVERTER |
| Input Bit Code | BINARY |
| Input Format | SERIAL |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e0 |
| Linearity Error-Max (EL) | 0.012% |
| Number of Bits | 16 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP24,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 240 |
| Qualification Status | Not Qualified |
| Settling Time-Max | 3000 µs |
| Settling Time-Nom (tstl) | 2500 µs |
| Supply Current-Max | 5mA |
| Supply Voltage-Nom | 24V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.39.00.40 |
Where can I find the AD420AR-32 datasheet?
AD420AR-32 Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for AD420AR-32?
Compatible alternatives and drop-in replacements for AD420AR-32:
Converter, 1 Func, Serial Input Loading, 2500us Settling Time, PDSO24
Frequently Asked Questions
What resolution and output voltage range does the AD420AR-32 provide for process control?
The AD420AR-32 provides 16-bit resolution, equivalent to 65536 output steps, with an analog output voltage range of up to 5 V. This resolution yields a minimum step size of approximately 76 µV per LSB on a 5 V full-scale range, enabling precise analog signal generation required for industrial process control instruments and calibration equipment.
How does the serial binary input of AD420AR-32 simplify interfacing to microcontrollers?
The AD420AR-32 accepts 16-bit serial binary data over a standard 3-wire SPI-compatible interface, requiring only clock, data, and chip-select lines from the host microcontroller. This minimizes GPIO usage compared to parallel DAC interfaces, allowing the device to be added to existing microcontroller designs without expanding the pin count or adding address decoding logic.
In which industrial instrumentation designs is AD420AR-32 commonly used as a precision analog output stage?
The AD420AR-32 is commonly used as the output DAC in 4-20 mA loop-powered industrial transmitters for pressure, temperature, and flow measurement, where the 16-bit resolution ensures analog output accuracy better than 0.002% of full scale. It also appears in PLC analog output modules and benchtop calibrators where repeatable 5 V voltage outputs must track digital set-points with sub-millivolt precision.
When should designers choose AD420AR-32 over a 12-bit DAC for a current loop transmitter?
Designers choose the 16-bit AD420AR-32 over a 12-bit DAC when the measurement span requires more than 4096 output steps — for example, a 4-20 mA transmitter covering a 0-1000 degrees Celsius temperature range needs at least 16-bit resolution to resolve individual 0.015°C increments. The 12-bit alternative delivers only 4096 steps, creating 0.24°C quantization steps that may exceed the accuracy specification of precision industrial instruments.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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