ADR423BRZ Analog Devices Integrated Circuit (Small Outline Packages) In Stock
ADR423BRZ is an Analog Devices precision 3.0 V three-terminal voltage reference with 0.04% initial accuracy, trim-adjustable output over ±0.5% range, 10 mA output current capability, and up to 18 V input, in an 8-pin SOIC package.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- ADR423BRZ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.9900(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.0 V precision reference with 0.04% initial accuracy for high-resolution ADC and DAC reference applications
- Trim pin enables ±0.5% output voltage adjustment without external op-amp, simplifying calibration
- 10 mA output current capacity supports multiple downstream loads with stable reference voltage
- Wide input supply range up to 18 V with 8-pin SOIC package for versatile industrial and bench instrument designs
Applications
ADR423BRZ provides the precision 3.0 V reference voltage for high-accuracy data acquisition systems, 12-bit to 16-bit ADCs, and precision DACs in industrial instrumentation, medical diagnostic equipment, and automated test systems. Its trim pin and 0.04% initial accuracy reduce system-level calibration overhead in multichannel measurement boards where reference error contributes directly to full-scale error. It is also used in smart meters, portable analyzers, and weighing scales requiring a stable reference from a wide supply voltage up to 18 V.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | R-8 |
| YTEOL | 10 |
| Additional Feature | OUTPUT VOLTAGE CAN BE ADJUSTED OVER A +/-0.5% RANGE USING TRIM PIN |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 3.0015V |
| Output Voltage-Min | 2.9985V |
| Output Voltage-Nom | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 15V |
| Supply Voltage-Min (Vsup) | 5V |
| Surface Mount | YES |
| Temp Coef of Voltage-Max | 3ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Voltage Tolerance-Max | 0.13% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What initial accuracy does ADR423BRZ guarantee, and how does it affect an ADC's full-scale error budget?
ADR423BRZ guarantees 0.04% initial accuracy on its 3.0 V output, corresponding to approximately 1.2 mV maximum deviation. For a 12-bit ADC with a 3.0 V full-scale range (LSB = 0.73 mV), this 1.2 mV reference error translates to about 1.6 LSB of full-scale error, making factory calibration or the trim pin adjustment necessary for sub-LSB reference accuracy.
How does the trim pin on ADR423BRZ allow output voltage adjustment, and what range is supported?
ADR423BRZ includes a trim pin that accepts an external resistor to Vout or GND, allowing the output voltage to be adjusted over a ±0.5% range around the nominal 3.0 V output — corresponding to approximately 2.985 V to 3.015 V. This eliminates the need for an external op-amp trim circuit and enables precise factory calibration of measurement instruments to within 0.01% after initial accuracy trimming.
What is the maximum input supply voltage for ADR423BRZ, and is it suitable for 12 V industrial supply rails?
ADR423BRZ accepts input voltages up to 18 V, making it fully compatible with 12 V industrial supply rails and 15 V analog power domains common in process control instrumentation. The wide input range allows a single reference IC to be powered from unregulated 12 V rails without a pre-regulator, simplifying the analog supply design in industrial measurement modules.
When is ADR423BRZ a better choice than a band-gap reference integrated inside an MCU for a precision 16-bit ADC?
External precision references like ADR423BRZ provide 0.04% accuracy and low temperature coefficient (typically 25 ppm/°C or better), while integrated MCU band-gap references typically achieve only 1% to 3% accuracy over temperature. For a 16-bit ADC with a 3.0 V reference, a 1% error corresponds to 655 LSB, making the external ADR423BRZ essential for accurate measurements in environments ranging from -40°C to +125°C.
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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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.8920 | $6.89 |
| 20+ | $6.6000 | $132.00 |
| 35+ | $6.4240 | $224.84 |
| 1000+ | $5.9900 | $5990.00 |
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