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Analog Devices Inc. ADR3630BRMZ-R7
- Part No.:
- ADR3630BRMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADR3630BRMZ-R7.pdf
- Description:
- IC VREF SERIES 3V 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,365
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Product details
Overview
ADR3630BRMZ-R7 from Analog Devices is a precision micropower voltage reference with 3.000 V nominal output, 3 ppm/°C max temperature coefficient (B grade), ±0.04% initial accuracy, 70 mA sourcing capability, and 8-lead MSOP package. It serves as a stable reference in high-accuracy analog signal chains for portable instrumentation and remote sensors.
For engineers reviewing the ADR3630BRMZ-R7 datasheet, ADR3630BRMZ-R7 pinout, ADR3630BRMZ-R7 application, or ADR3630BRMZ-R7 equivalent, key selection criteria include low dropout (0.15 V at 10 mA), ultra-low noise (3 ppm p-p, 0.1 Hz–10 Hz), 1.5 μA shutdown current, and operation across −40°C to +125°C.
Technical Context
The ADR3630BRMZ-R7 uses Analog Devices' proprietary DigiTrim® technology for production trimming of output voltage and temperature coefficient, enabling B-grade performance. Its architecture supports force-sense outputs (VOUT FORCE/VOUT SENSE) and an ENABLE pin with 1.17 V logic-high threshold, allowing precise remote sensing and power management in high-accuracy systems.
It features internal current limiting (90 mA short-circuit source), thermal shutdown at 178°C, and no power-cycle hysteresis-ensuring calibration stability across on/off cycles. The device requires only 0.1 μF minimum output capacitance and operates with input voltages up to 16 V while maintaining 0.15 V dropout at 10 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000 V ±0.001 V (B grade, 25°C); enables accurate ADC/DAC biasing at 3 V rail |
| Temp Coefficient | ≤3 ppm/°C (B grade, −40°C to +125°C); ensures <±0.3 mV drift over full industrial range |
| Initial Accuracy | ±0.04% (B grade); corresponds to ±1.2 mV error at 3 V, critical for factory calibration |
| Dropout Voltage | 0.15 V (at 10 mA); allows operation from 3.15 V supply in battery-powered systems |
| Output Noise | 3 ppm p-p (0.1 Hz–10 Hz); ~9 µV p-p at 3 V, suitable for 24-bit precision data acquisition |
| Quiescent Current | 70 µA (typ); enables multi-year operation from coin-cell batteries in remote sensor nodes |
| Shutdown Current | 1.5 µA (max); supports ultra-low-power sleep modes without external switches |
| Load Current | 70 mA sourcing / 20 mA sinking; drives multiple op-amps or ADC references directly |
Pinout & Package
ADR3630BRMZ-R7 is housed in an 8-lead MSOP (RM-8) package with exposed pad for thermal enhancement. Pin layout follows standard MSOP footprint (3.0 mm × 3.0 mm, 0.65 mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - ENABLE | Digital enable control input | Active-high logic interface; 1.17 V threshold enables direct connection to 1.8 V/3.3 V microcontrollers |
| 2 - VIN | Reference input supply | Accepts 3 V to 16 V; dropout as low as 0.15 V allows efficient use of marginal supplies |
| 3 - GND FORCE | Power ground return | Carries full output current; must be connected to PCB ground plane near device |
| 4 - GND SENSE | Remote ground sensing | Compensates for PCB trace IR drop between GND FORCE and load ground |
| 5 - GND | Ground tie | Internally connected to GND FORCE; must be soldered to same ground net |
| 6 - VOUT FORCE | Main reference output | Delivers up to 70 mA; connects to local bypass cap and load current path |
| 7 - VOUT SENSE | Remote output sensing | Connects directly to load's reference input to eliminate trace resistance errors |
| 8 - GND | Ground tie | Internally connected to GND FORCE; completes ground loop for sense circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Separates high-current output path (VOUT FORCE) from precision sensing (VOUT SENSE), eliminating voltage drop errors in PCB traces |
| DigiTrim® production trimming | Enables guaranteed B-grade specs (3 ppm/°C, ±0.04%) without post-manufacture calibration |
| No power-cycle hysteresis | Output returns to identical value after repeated power-on/off cycles-critical for field-deployed calibration equipment |
| Low thermal hysteresis (7 ppm) | Ensures repeatable output after temperature cycling from −40°C → +125°C → −40°C, supporting harsh-environment reliability |
| Integrated short-circuit protection | 90 mA typical current limit prevents damage during accidental VOUT-to-GND faults without external components |
| 1.8 V logic-compatible ENABLE | Supports direct interfacing with modern low-voltage MCUs without level-shifting circuitry |
Applications
| Portable Instrumentation | Process Transmitters |
|---|---|
Use Scenario: Handheld multimeters and portable gas analyzers requiring stable reference under varying battery voltage and ambient temperature. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADCs and precision DACs in measurement front-ends. Use Value: 3 ppm/°C tempco and 3 ppm p-p noise ensure ≤1 LSB error drift over full operating range, extending recalibration intervals. | Use Scenario: 4–20 mA loop-powered transmitters in oil & gas refineries where long-term stability and wide temperature operation are mandatory. IC Role / Device Role / Timing Role: Reference source for current-loop DACs and sensor signal conditioning amplifiers. Use Value: 160 ppm long-term drift at 3500 hours and −40°C to +125°C rating guarantee accuracy over 10+ years of unattended operation. |
| Remote Sensors | Medical Instrumentation |
Use Scenario: Wireless environmental monitoring nodes powered by Li-SOCl₂ batteries with multi-year lifetime requirements. IC Role / Device Role / Timing Role: Low-power reference for ultra-low-duty-cycle ADC sampling and RF transmission timing. Use Value: 1.5 μA shutdown current and 70 µA operating current enable >10-year battery life while maintaining fast wake-up (<700 µs settling). | Use Scenario: Portable ECG and patient monitors needing FDA-compliant accuracy and immunity to thermal cycling during sterilization. IC Role / Device Role / Timing Role: Reference for analog front-end gain stages and ADCs in biopotential signal chains. Use Value: Force-sense outputs eliminate PCB trace errors in compact layouts; 7 ppm thermal hysteresis ensures repeatable readings after autoclave exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3630ARMZ-R7 | A grade (6 ppm/°C, ±0.08% initial error) in same 8-lead MSOP package | Lower accuracy; suitable for cost-sensitive industrial controls where 3 ppm/°C is not required | Select ADR3630ARMZ-R7 when budget constraints outweigh need for B-grade stability |
| REF5030AIDR | 3.0 V, 3 ppm/°C, but higher quiescent current (950 µA) and no ENABLE pin | Lacks shutdown mode; unsuitable for battery-powered devices requiring ultra-low sleep current | Choose REF5030AIDR only if higher drive strength (100 mA) and lower noise density (250 nV/√Hz) justify 60× higher IQ |
Compared with ADR3630ARMZ-R7, the ADR3630BRMZ-R7 delivers tighter initial accuracy and lower tempco at identical package and pinout-justifying premium for metrology-grade designs. Versus REF5030AIDR, it trades off absolute noise density for 13× lower quiescent current and integrated enable control, making it superior for portable and energy-harvested systems.
Availability
ADR3630BRMZ-R7 is available at Aetrix Electronics and suitable for precision power supplies, portable instrumentation, and remote sensors requiring stable component supply with guaranteed long-term parametric consistency.
Supply support for ADR3630BRMZ-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 Wilmington, MA.
The ADR36xx series was designed specifically for high-accuracy, low-power reference applications in portable, industrial, and medical instrumentation-emphasizing long-term stability, thermal hysteresis immunity, and force-sense topology for system-level precision.
FAQ
What is the maximum input voltage for the ADR3630BRMZ-R7?
The ADR3630BRMZ-R7 supports a maximum input voltage of 16 V, as specified in its Absolute Maximum Ratings table. Operation above this voltage risks permanent damage. For reliable long-term performance, Analog Devices recommends keeping VIN ≤16 V and ensuring sufficient power derating at elevated ambient temperatures per the θJA = 132.5°C/W thermal resistance specification.
Does the ADR3630BRMZ-R7 require external capacitors?
Yes, the ADR3630BRMZ-R7 requires a minimum 0.1 μF output capacitor for stability, with recommended values up to 10 μF for enhanced noise filtering. An input capacitor (1–10 μF) is also advised to improve transient response when VIN is noisy or sourced from high-impedance supplies. Ceramic types are preferred for both positions due to low ESR and stability across temperature.
How does the force-sense architecture of the ADR3630BRMZ-R7 improve accuracy?
The ADR3630BRMZ-R7 separates VOUT FORCE (high-current output path) from VOUT SENSE (precision sensing node), allowing direct connection of VOUT SENSE to the load's reference input. This eliminates voltage drop errors caused by PCB trace resistance between the IC and load, enabling true Kelvin-sensing accuracy-especially critical in high-resolution data acquisition systems where even milliohm-level trace resistance introduces measurable error.
What is the settling time of the ADR3630BRMZ-R7 after power-up?
The ADR3630BRMZ-R7 has a typical turn-on settling time of 700 µs to within 0.1% of final output voltage, measured with 0.1 µF output capacitance and 1 kΩ load resistance at TA = 25°C. This fast startup supports rapid wake-from-sleep operation in battery-powered instruments, minimizing measurement latency without compromising reference stability.
Is the ADR3630BRMZ-R7 RoHS compliant and lead-free?
Yes, the ADR3630BRMZ-R7 is RoHS compliant and manufactured with lead-free terminations. Its MSOP package meets JEDEC J-STD-020D reflow profile requirements, including peak solder temperature of 260°C for lead-free processes. The device exhibits ≤0.06% solder heat resistance shift after three reflow cycles, confirming robustness in standard SMT assembly.
ADR3630BRMZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 70 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 3ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3ppmp-p
- Noise - 10Hz to 10kHz:
- 4ppmrms
- Voltage - Input:
- 3V ~ 16V
- Current - Supply:
- 90µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ADR3630BRMZ-R7 FAQ
1.How can I place an order for ADR3630BRMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR3630BRMZ-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 ADR3630BRMZ-R7 reliable?
The price and inventory of ADR3630BRMZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR3630BRMZ-R7 is usually 5 days.
3.What payment methods are accepted for ADR3630BRMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR3630BRMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR3630BRMZ-R7?
ADR3630BRMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR3630BRMZ-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 ADR3630BRMZ-R7?
For technical support, including ADR3630BRMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR3630BRMZ-R7 requirements.
6.How does Aetrix verify that ADR3630BRMZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADR3630BRMZ-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 ADR3630BRMZ-R7 meets industry standards.
7.What is the process for return or replacement of ADR3630BRMZ-R7?
All ADR3630BRMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR3630BRMZ-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 ADR3630BRMZ-R7 part is unused and in its original packaging.
Return procedure for ADR3630BRMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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