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Analog Devices Inc. ADR3430ARJZ-R7
- Part No.:
- ADR3430ARJZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
ADR3430ARJZ-R7.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADR3430ARJZ-R7 from Analog Devices is a micropower, high-accuracy CMOS voltage reference delivering 3.000 V ±0.1% initial accuracy, 8 ppm/°C max temperature coefficient, and 22 μVp-p (0.1 Hz–10 Hz) output noise in a 6-lead SOT-23 package. It sources up to +10 mA and sinks −3 mA while consuming only 100 μA maximum quiescent current, enabling precision analog signal conditioning in battery-powered instrumentation.
For engineers reviewing the ADR3430ARJZ-R7 datasheet, ADR3430ARJZ-R7 pinout, ADR3430ARJZ-R7 application, or ADR3430ARJZ-R7 equivalent, key selection criteria include its 3.0 V output with 250 mV dropout at 2 mA, force-sense Kelvin configuration for load regulation stability, industrial −40°C to +125°C operating range, and DigiTrim®-enabled digital trimming for production-grade accuracy.
Technical Context
The ADR3430ARJZ-R7 employs a CMOS bandgap architecture with proprietary DigiTrim® technology for post-assembly digital calibration of output voltage and temperature coefficient. Its dual-force/dual-sense topology (VIN/VOUT FORCE and GND/VOUT SENSE pins) isolates reference accuracy from PCB trace resistance and load-induced IR drops.
It features an enable-controlled shutdown mode drawing only 5 μA, fast 700 μs turn-on settling time, and robust ripple rejection (−60 dB at 60 Hz). Designed for low-noise, high-stability applications, it achieves 70 ppm output hysteresis and 30 ppm long-term drift over 1000 hours at 50°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000 V ±0.1% (±3.0 mV) - enables direct interface with 3 V ADCs and DACs without gain calibration. |
| Tempco | ≤8 ppm/°C over −40°C to +125°C - ensures ≤240 ppm total drift across full industrial range. |
| Quiescent Current | ≤100 μA - supports >10-year battery life in 10 μA-sleep systems with periodic wake-up sampling. |
| Dropout Voltage | 250 mV at 2 mA - allows operation from 3.2 V input, compatible with single-cell LiFePO₄ or regulated 3.3 V rails. |
| Output Noise | 22 μVp-p (0.1–10 Hz) - preserves ENOB in 16-bit+ SAR ADCs and precision sensor front-ends. |
| Load Regulation | 9 ppm/mA sourcing - maintains <0.03% error under 10 mA load variation, critical for multi-channel data acquisition. |
| Enable Threshold | VH = VIN × 0.85; VL ≤ 0.7 V - ensures clean logic-level control from 1.8 V or 3.3 V microcontrollers. |
Pinout & Package
Package: 6-lead SOT-23 (RJ-6), 2.2 mm × 1.35 mm × 1.0 mm body, 0.95 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND FORCE | Ground return path for internal regulator | Connects to local ground plane; carries return current but not sensing current. |
| 2 - GND SENSE | Ground reference sense point | Must connect directly to lowest-potential node (e.g., ADC ground pin) to reject ground bounce errors. |
| 3 - ENABLE | Active-high digital enable input | Pulls device into 5 μA shutdown when <0.7 V; requires ≥VIN × 0.85 to activate. |
| 4 - VIN | Unregulated input supply | Accepts 3.2 V to 5.5 V; minimum 250 mV headroom required for 3.0 V output at 2 mA. |
| 5 - VOUT SENSE | Output voltage feedback sense | Connects directly to load's reference input (e.g., ADC REF+ pin) to compensate for trace resistance. |
| 6 - VOUT FORCE | Reference output drive terminal | Delivers regulated 3.0 V; used with VOUT SENSE in 4-wire Kelvin configuration for <0.01% load regulation. |
Key Features
| Feature | Design Value |
|---|---|
| DigiTrim® digital calibration | Enables ±0.1% initial accuracy without laser trimming, reducing cost and improving production yield. |
| Force-sense Kelvin outputs | Separates current-carrying (FORCE) and sensing (SENSE) paths to eliminate voltage drop errors in PCB traces. |
| Low 22 μVp-p 0.1–10 Hz noise | Minimizes quantization uncertainty in high-resolution delta-sigma ADCs and precision weigh-scale systems. |
| 700 μs turn-on settling time | Supports burst-mode sampling in portable instruments where reference must stabilize before ADC conversion. |
| −40°C to +125°C operation | Validated for automotive under-hood, industrial motor drives, and downhole oil/gas electronics. |
| 5 μA shutdown current | Extends battery life in IoT sensors that spend >99% of time in sleep mode with periodic wake-up cycles. |
Applications
| Industrial Process Transmitters | Portable Medical Monitors |
|---|---|
Use Scenario: 4–20 mA loop-powered pressure/temperature transmitter with HART modulation. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for 16-bit DAC generating analog output and for ADC measuring sensor bridge voltage. Use Value: 8 ppm/°C tempco and 30 ppm long-term drift ensure <0.1% total error over 10-year field deployment without recalibration. |
Use Scenario: Battery-operated ECG/SpO₂ monitor with 24-hour continuous recording. IC Role / Device Role / Timing Role: Supplies precision 3.0 V reference to 24-bit delta-sigma ADC digitizing biopotential signals. Use Value: 22 μVp-p low-frequency noise preserves signal integrity for sub-μV cardiac waveform resolution. |
| High-Accuracy Data Loggers | Automotive Battery Management Systems |
Use Scenario: Ruggedized environmental logger capturing temperature, humidity, and gas concentration over extended periods. IC Role / Device Role / Timing Role: Reference for multiplexed 18-bit SAR ADC reading thermistors, RTDs, and electrochemical sensors. Use Value: Force-sense configuration rejects PCB thermal gradients and trace resistance effects across wide temperature swings. |
Use Scenario: Cell voltage monitoring IC in 12S lithium-ion BMS operating near engine compartment. IC Role / Device Role / Timing Role: Supplies 3.0 V reference to precision 16-bit ADC measuring individual cell voltages. Use Value: −40°C to +125°C rating and 70 ppm hysteresis ensure consistent accuracy during cold cranking and hot soak conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3430ARMZ-R7 | Same electrical specs; 8-lead MSOP package (3.0 mm × 3.0 mm), no ENABLE pin, fixed on. | Used where board space permits larger package and always-on operation is acceptable. | Select ADR3430ARMZ-R7 if shutdown control is unnecessary and MSOP footprint is preferred for thermal or layout reasons. |
| REF3330AIDBZR | 3.0 V, ±0.2% initial accuracy, 10 ppm/°C, 3.5 μA quiescent current, no ENABLE, SOT-23-3. | Suitable for ultra-low-power designs where 0.1% accuracy is not mandatory and enable control is omitted. | Choose REF3330AIDBZR only when budget constraints outweigh need for 0.1% accuracy and active power management. |
Compared with ADR3430ARMZ-R7, the ADR3430ARJZ-R7 adds ENABLE functionality in the same SOT-23 footprint but trades off one pin for control; versus REF3330AIDBZR, it delivers tighter accuracy and lower noise at higher quiescent current, making it optimal for metrology-grade systems.
Availability
ADR3430ARJZ-R7 is available at Aetrix Electronics and suitable for precision data acquisition systems, industrial instrumentation, and medical devices requiring stable component supply with guaranteed long-term availability and traceable lot control.
Supply support for ADR3430ARJZ-R7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADR34xx family was designed specifically for cost-sensitive, high-accuracy applications demanding low power, low noise, and industrial temperature range operation - targeting portable instrumentation, process control, and medical diagnostics.
FAQ
What is the minimum input voltage required for ADR3430ARJZ-R7 to maintain 3.0 V output accuracy?
The ADR3430ARJZ-R7 requires a minimum input voltage of 3.2 V to guarantee ±0.1% output accuracy across temperature and load. This is defined by its 250 mV dropout voltage at 2 mA load and −40°C to +125°C operating range. Operating below 3.2 V risks output collapse or increased error beyond specification limits.
How does the force-sense pin configuration improve accuracy in ADR3430ARJZ-R7?
The ADR3430ARJZ-R7 uses separate FORCE and SENSE pins (GND FORCE/GND SENSE and VOUT FORCE/VOUT SENSE) to implement a 4-wire Kelvin connection. This eliminates voltage errors caused by PCB trace resistance between the reference and load, ensuring the sensed voltage at the load matches the ideal 3.000 V output regardless of current flow or board layout parasitics.
Can ADR3430ARJZ-R7 be used in battery-powered applications with intermittent operation?
Yes - the ADR3430ARJZ-R7 draws only 5 μA in shutdown mode when the ENABLE pin is held below 0.7 V. Combined with its 700 μs turn-on settling time, it is well-suited for battery-powered devices using duty-cycled measurement schemes, such as wireless sensor nodes or portable diagnostic tools.
What is the typical output voltage noise of ADR3430ARJZ-R7, and how is it measured?
The ADR3430ARJZ-R7 delivers 22 μVp-p (typical) output noise over the 0.1 Hz to 10 Hz bandwidth, measured per standard voltage reference test methods. This low-frequency noise is critical for high-resolution DC measurements and is complemented by 45 μV rms (10 Hz–10 kHz) and 1.1 μV/√Hz noise spectral density at 1 kHz.
Is ADR3430ARJZ-R7 pin-compatible with other members of the ADR34xx family?
Yes - all ADR34xx variants (ADR3412 through ADR3450) share identical 6-lead SOT-23 (RJ-6) packaging and pinout. Engineers can substitute ADR3430ARJZ-R7 with ADR3425ARJZ-R7 or ADR3433ARJZ-R7 on the same footprint, provided input voltage and output voltage requirements align with each variant's specified ranges.
ADR3430ARJZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 8ppm/°C
- Noise - 0.1Hz to 10Hz:
- 22µVp-p
- Noise - 10Hz to 10kHz:
- 45µVrms
- Voltage - Input:
- 3.2V ~ 5.5V
- Current - Supply:
- 100µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
ADR3430ARJZ-R7 FAQ
1.How can I place an order for ADR3430ARJZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR3430ARJZ-R7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADR3430ARJZ-R7 reliable?
The price and inventory of ADR3430ARJZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR3430ARJZ-R7 is usually 5 days.
3.What payment methods are accepted for ADR3430ARJZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR3430ARJZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR3430ARJZ-R7?
ADR3430ARJZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR3430ARJZ-R7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADR3430ARJZ-R7?
For technical support, including ADR3430ARJZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR3430ARJZ-R7 requirements.
6.How does Aetrix verify that ADR3430ARJZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADR3430ARJZ-R7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADR3430ARJZ-R7 meets industry standards.
7.What is the process for return or replacement of ADR3430ARJZ-R7?
All ADR3430ARJZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR3430ARJZ-R7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADR3430ARJZ-R7 part is unused and in its original packaging.
Return procedure for ADR3430ARJZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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