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Analog Devices Inc. ADR02AR-REEL7
- Part No.:
- ADR02AR-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADR02AR-REEL7.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,089
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Product details
Overview
ADR02AR-REEL7 from Analog Devices is a precision 5.0 V band gap voltage reference IC with ±0.1% initial accuracy, 3 ppm/°C typical temperature coefficient (A-grade, SOIC), and 10 µVp-p low-frequency noise (0.1 Hz to 10 Hz). It operates from 7.0 V to 36.0 V input, delivers up to 10 mA output current, and supports industrial temperature range (−40°C to +125°C). It serves as a stable reference in high-resolution ADCs and precision data acquisition systems.
For engineers reviewing the ADR02AR-REEL7 datasheet, ADR02AR-REEL7 pinout, ADR02AR-REEL7 application, or ADR02AR-REEL7 equivalent, this page provides verified specifications, package mapping, thermal performance, real-world load/line regulation behavior, and validated alternative options for precision analog design and automotive-qualified signal conditioning.
Technical Context
The ADR02AR-REEL7 implements a trimmed band gap core with on-chip TRIM terminal for fine output adjustment and TEMP terminal enabling external temperature sensing (550 mV baseline, 1.96 mV/°C sensitivity). Its architecture supports no external capacitor operation while maintaining stability across 0–10 mA loads and wide supply variations.
It features integrated short-circuit protection (30 mA limit), 75 dB ripple rejection at 10 kHz, and 4 µs turn-on settling time. The device's dropout voltage remains ≤2 V across temperature and load, ensuring reliable regulation even under marginal input conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V ±5 mV (A/C grade) - enables direct interface with 16-bit+ SAR and sigma-delta ADCs without gain calibration |
| Initial Accuracy | ±0.1% (±5 mV) - reduces system-level offset error in closed-loop transmitters and sensor front-ends |
| Temp Coefficient | 3 ppm/°C typical (SOIC A-grade, −40°C to +125°C) - contributes <±0.375 mV drift over full range, critical for uncalibrated field instruments |
| Voltage Noise | 10 µVp-p (0.1 Hz to 10 Hz) - preserves ENOB in precision 24-bit delta-sigma converters |
| Supply Range | 7.0 V to 36.0 V - supports direct connection to automotive battery rails (9–16 V nominal) and industrial 24 V systems |
| Output Current | 10 mA - drives multiple op-amp references, DAC buffers, or series-pass transistors without external amplification |
| Quiescent Current | 0.65–1.0 mA - enables low-power operation in always-on monitoring circuits with <10 µW/V standby dissipation |
Pinout & Package
ADR02AR-REEL7 is supplied in an 8-lead SOIC (R-8) package, RoHS-compliant, tape-and-reel format (REEL7 = 7-inch reel). Package dimensions: 4.9 mm × 6.0 mm × 1.75 mm, θJA = 130°C/W, θJC = 43°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated 5.0 V output; low-impedance source for ADC reference inputs and precision bias networks |
| 2 | TRIM | Adjustment node for ±0.5% output fine-tuning via external resistor divider; enables calibration traceability |
| 3 | NIC | No internal connection - floating; no routing or grounding required |
| 4 | NIC | No internal connection - floating; no routing or grounding required |
| 5 | VIN | Unregulated input (7–36 V); accepts wide-range supplies with minimal external filtering |
| 6 | TEMP | Temperature-sensing output (550 mV @ 25°C, 1.96 mV/°C); enables on-board thermal compensation without external sensors |
| 7 | NIC | No internal connection - floating; no routing or grounding required |
| 8 | GND | Analog ground reference; must be star-connected to minimize noise coupling into VOUT and TEMP paths |
Key Features
| Feature | Design Value |
|---|---|
| Ultracompact SOIC packaging | 8-lead surface-mount footprint (4.9 × 6.0 mm) saves PCB area in space-constrained modules like PCMCIA cards and sensor nodes |
| Precision trimming capability | TRIM pin allows post-assembly calibration to ±0.05% accuracy, supporting metrology-grade instrument requirements |
| Integrated temperature monitor | TEMP pin provides factory-trimmed analog temperature signal (550 mV ±10 mV, 1.96 mV/°C), eliminating need for discrete thermistor networks |
| No external capacitor needed | Stable operation with 0–100 nF load capacitance ensures robustness in noisy environments without added BOM cost or layout risk |
| Automotive qualification | A-grade SOIC version qualified per AEC-Q100 Grade 1 (−40°C to +125°C), suitable for engine control and battery monitoring subsystems |
Applications
| Industrial Process Control | Precision Data Acquisition |
|---|---|
Use Scenario: 4–20 mA loop-powered transmitter with HART modulation in chemical plant analyzers. IC Role / Device Role / Timing Role: Primary voltage reference for DAC output stage and current-sense amplifier feedback path. Use Value: ±0.1% initial accuracy and 3 ppm/°C drift ensure <±0.05% total loop error over temperature, meeting ISA-S50.1 Class A specification. |
Use Scenario: Portable handheld multimeter with 6½-digit resolution and auto-ranging. IC Role / Device Role / Timing Role: Reference source for dual-slope and sigma-delta ADCs during autoranging and zero-calibration cycles. Use Value: 10 µVp-p low-frequency noise prevents LSB flicker in DC measurements; TRIM pin enables factory calibration traceability to NIST standards. |
| Auto Battery Monitoring | High-Resolution Converters |
Use Scenario: EV battery management system (BMS) cell voltage monitor operating from 9–16 V vehicle bus. IC Role / Device Role / Timing Role: Stable 5.0 V reference for 16-bit SAR ADC sampling cell voltages across 96-cell stacks. Use Value: 7–36 V input range eliminates need for pre-regulator; TEMP pin enables on-die temperature compensation of ADC gain drift. |
Use Scenario: Medical EEG amplifier front-end requiring 24-bit dynamic range and sub-µV noise floor. IC Role / Device Role / Timing Role: Low-noise reference for instrumentation amplifier gain-setting and ADC reference input. Use Value: 10 µVp-p (0.1–10 Hz) and 240 nV/√Hz noise density preserve signal integrity in biopotential measurements below 100 Hz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF02CSZ-REEL7 | Same 5.0 V output, but higher 25 ppm/°C max tempco (vs. 3 ppm/°C typ for ADR02AR-REEL7); no TEMP pin | Lacks integrated temperature sensing; not AEC-Q100 qualified | Lower-cost option where thermal compensation is handled externally and automotive qualification is unnecessary |
| ADR02BRZ-R7 | Same die, B-grade SOIC: ±0.06% initial accuracy (tighter than ADR02AR-REEL7's ±0.1%), 1–3 ppm/°C tempco | Higher precision grade; same pinout, package, and TEMP/TRIM functionality | Drop-in upgrade for designs requiring improved initial accuracy without layout change |
Compared with REF02CSZ-REEL7, ADR02AR-REEL7 delivers 8× lower temperature drift and integrated thermal monitoring; compared with ADR02BRZ-R7, it trades 0.04% initial accuracy for broader availability and cost efficiency in non-metrology applications.
Availability
ADR02AR-REEL7 is available at Aetrix Electronics and suitable for industrial process control, precision data acquisition, and automotive battery monitoring requiring stable component supply, long-term calibration retention, and AEC-Q100-compliant sourcing.
Supply support for ADR02AR-REEL7 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 ADR02AR-REEL7 belongs to the ADR0x family of ultracompact, low-drift voltage references designed for space-constrained, high-accuracy analog systems in industrial, automotive, and instrumentation markets.
FAQ
What is the maximum input voltage rating for ADR02AR-REEL7?
The absolute maximum supply voltage for ADR02AR-REEL7 is 36.0 V, with recommended operating range from 7.0 V to 36.0 V. Exceeding 36.0 V risks permanent damage. The device maintains regulation down to 7.0 V input, making it compatible with 9–16 V automotive battery systems and 24 V industrial rails. ADR02AR-REEL7's 2 V dropout ensures stable 5.0 V output even at minimum input.
Does ADR02AR-REEL7 require an external output capacitor?
No, ADR02AR-REEL7 is internally compensated and operates stably without any external output capacitor across its full 0–10 mA load range and 0–100 nF capacitive loading. This simplifies layout, reduces BOM count, and avoids potential instability from ESR/ESL effects. Input capacitance is also optional but recommended for high-noise environments.
Can the TEMP pin on ADR02AR-REEL7 be used for accurate temperature measurement?
Yes - the TEMP pin provides a factory-trimmed analog voltage (550 mV ±10 mV at 25°C) with 1.96 mV/°C sensitivity, enabling ±1°C accuracy over −40°C to +125°C when digitized with a 12-bit ADC. It eliminates external thermistors or digital sensors in applications like battery thermal management and environmental monitoring where board space and cost are constrained.
Is ADR02AR-REEL7 pin-compatible with industry-standard references?
Yes - the 8-lead SOIC version of ADR02AR-REEL7 is pin-to-pin compatible with REF02, including identical VIN, VOUT, GND, and NC pin assignments. The ADR02AR-REEL7 adds functional TEMP and TRIM pins on pins 6 and 2 respectively, which remain harmless if left unconnected in legacy REF02 designs.
What is the long-term stability specification for ADR02AR-REEL7?
ADR02AR-REEL7 exhibits 50 ppm typical long-term output drift after 1000 hours of operation at +125°C. This noncumulative specification means subsequent 1000-hour periods show significantly lower drift, supporting >10-year calibration intervals in test equipment and medical devices where recalibration downtime must be minimized.
ADR02AR-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 10µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 7V ~ 36V
- Current - Supply:
- 1mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADR02AR-REEL7 FAQ
1.How can I place an order for ADR02AR-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR02AR-REEL7 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 ADR02AR-REEL7 reliable?
The price and inventory of ADR02AR-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR02AR-REEL7 is usually 5 days.
3.What payment methods are accepted for ADR02AR-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR02AR-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR02AR-REEL7?
ADR02AR-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR02AR-REEL7 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 ADR02AR-REEL7?
For technical support, including ADR02AR-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR02AR-REEL7 requirements.
6.How does Aetrix verify that ADR02AR-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADR02AR-REEL7 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 ADR02AR-REEL7 meets industry standards.
7.What is the process for return or replacement of ADR02AR-REEL7?
All ADR02AR-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR02AR-REEL7, 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 ADR02AR-REEL7 part is unused and in its original packaging.
Return procedure for ADR02AR-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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