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Analog Devices Inc. REF01CS-REEL7
- Part No.:
- REF01CS-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
REF01CS-REEL7.pdf
- Description:
- IC VREF SERIES 1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,758
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Product details
Overview
REF01CS-REEL7 from Analog Devices is a precision 10.0 V voltage reference IC with ±0.3% initial accuracy (A-grade), 8.5 ppm/°C max temperature coefficient, 30 µVp-p low-frequency noise (0.1–10 Hz), 1.4 mA max quiescent current, and 10 mA load-driving capability. It operates from 12 V to 36 V input and serves as a stable excitation source in high-resolution ADCs, DACs, and calibration circuits.
For engineers reviewing the REF01CS-REEL7 datasheet, REF01CS-REEL7 pinout, REF01CS-REEL7 application, or REF01CS-REEL7 equivalent, this page delivers verified specifications, SOIC-8 package layout, temperature-sensing functionality via the TEMP pin, trim-adjustable output, and real-world design implications for metrology-grade systems.
Technical Context
The REF01CS-REEL7 implements a laser-trimmed bandgap core with PTAT and CTAT voltage generation, delivering a fixed 10.0 V output stabilized by internal feedback resistors (R5/R6). Its TEMP pin provides unbuffered bandgap voltage (580 mV at 25°C) with 1.96 mV/°C linearity for on-chip temperature monitoring.
It features an integrated TRIM terminal enabling ±3% output adjustment using a 10 kΩ potentiometer, while maintaining low drift over −40°C to +85°C operating range. The device requires no external components for basic operation but benefits from 0.1 µF ceramic capacitors on VIN and VOUT for optimal noise and transient performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.0 V nominal, ±0.3% initial accuracy (A-grade) - ensures ≤±30 mV absolute error at 25°C for calibration-critical nodes. |
| Tempco | ≤8.5 ppm/°C (−55°C to +125°C) - contributes ≤±0.85 mV drift over full industrial range, critical for long-term measurement stability. |
| Noise (0.1–10 Hz) | 30 µVp-p typical - enables <18-bit ENOB in 16-bit+ SAR ADCs without additional filtering. |
| Supply Range | 12 V to 36 V - supports wide-input industrial power rails and accommodates ≥2 V dropout margin at 10 mA load. |
| Load Drive | 10 mA sourcing - directly drives 1 kΩ DAC reference inputs or multiple op-amp bias networks without buffering. |
| Quiescent Current | 1.4 mA max - allows use in low-power portable instrumentation with minimal supply burden. |
| Long-Term Stability | 50 ppm after 1000 hours - corresponds to ~0.5 mV drift over first 42 days, supporting reliability planning in field-deployed equipment. |
Pinout & Package
REF01CS-REEL7 is supplied in an 8-lead SOIC package (S-suffix), surface-mount, with standard JEDEC MS-012AC footprint (5.3 mm × 6.2 mm, 1.27 mm pitch). Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | NC (No Connect) | Internally unconnected; must remain floating or tied to GND per layout best practice - not reserved for future function. |
| 2 | VIN | Positive supply input; accepts 12–36 V DC; requires local 0.1 µF ceramic decoupling to suppress supply noise. |
| 3 | TEMP | Unbuffered bandgap voltage output (580 mV @ 25°C); slope = 1.96 mV/°C - used for die temperature estimation, not for regulation. |
| 4 | GND | Analog ground reference; must connect to clean system AGND plane with low-inductance path to minimize noise coupling. |
| 5 | TRIM | Adjustment node for ±3% output tuning via external 10 kΩ potentiometer - enables system-level calibration of gain/offset errors. |
| 6 | VOUT | Stable 10.0 V reference output; capable of sourcing 10 mA; requires 0.1 µF ceramic capacitor to ground for stability and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-laser-trimmed output | Delivers ±0.3% initial accuracy without user trimming - reduces production test time and eliminates manual calibration steps. |
| Integrated temperature sensor | TEMP pin provides direct 1.96 mV/°C analog output - enables real-time thermal derating or compensation in precision sensors without extra ICs. |
| Trim-adjustable output | TRIM terminal supports ±3% fine-tuning with 10 kΩ pot - corrects for PCB trace resistance, solder thermal shift, or system-level gain errors. |
| Wide supply range & low dropout | Operates from 12 V to 36 V with only 2 V dropout - simplifies power architecture in multi-rail industrial systems and avoids LDO dependency. |
| Low 0.1–10 Hz noise | 30 µVp-p typical - meets noise floor requirements for 24-bit delta-sigma ADCs in weigh scales and analytical instruments. |
Applications
| High-Resolution Data Acquisition | Precision Calibration Equipment |
|---|---|
|
Use Scenario: 24-bit delta-sigma ADC front-end in portable environmental monitors measuring gas concentration or pressure. IC Role / Device Role / Timing Role: Primary voltage reference for ADC VREF input, defining full-scale range and LSB weight. Use Value: 8.5 ppm/°C tempco and 30 µVp-p noise ensure <±1 LSB error over temperature and time, eliminating recalibration every 6 months. |
Use Scenario: Automated calibration station for multimeters and oscilloscope vertical amplifiers. IC Role / Device Role / Timing Role: Stable 10.0 V reference source for DMM reference divider networks and self-test circuits. Use Value: ±0.3% initial accuracy and 50 ppm long-term stability enable traceable NIST-level calibration without annual vendor service. |
| Industrial Process Controllers | Aerospace Sensor Signal Conditioning |
|
Use Scenario: 4–20 mA transmitter module in oil & gas flow metering systems operating at −40°C to +85°C. IC Role / Device Role / Timing Role: Excitation reference for bridge-based pressure transducers and RTD signal chains. Use Value: 10 mA drive capability powers Wheatstone bridges directly; wide temp range and low drift maintain loop accuracy across ambient extremes. |
Use Scenario: Inertial measurement unit (IMU) signal conditioning board in UAV flight control systems. IC Role / Device Role / Timing Role: Reference for gyroscope/accelerometer ADCs and onboard temperature compensation logic. Use Value: TEMP pin output enables real-time die temperature tracking, allowing firmware to apply dynamic offset correction to sensor outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR01ARZ-REEL7 | Higher accuracy (±0.1%), lower tempco (3 ppm/°C), same SOIC-8 package, pin-compatible. | Better suited for metrology-grade lab equipment requiring <1 ppm total error budget. | Select ADR01ARZ-REEL7 when upgrading legacy REF01 designs for improved long-term stability and reduced thermal drift. |
| REF5010AIDR | 10 V output, ±0.05% initial accuracy, 3 ppm/°C tempco, SOIC-8, but higher quiescent current (3.8 mA). | Optimized for ultra-stable battery-powered test gear where accuracy outweighs power consumption. | Choose REF5010AIDR only if system-level accuracy demands exceed REF01CS-REEL7's 0.3% spec and power budget permits +2.4 mA overhead. |
Compared with REF01CS-REEL7, ADR01ARZ-REEL7 offers superior accuracy and drift performance with identical pinout and footprint, while REF5010AIDR delivers tighter initial tolerance at the cost of higher supply current - both require validation of thermal layout and noise filtering for drop-in replacement.
Availability
REF01CS-REEL7 is available at Aetrix Electronics and suitable for high-resolution data acquisition, precision calibration equipment, and industrial process controllers requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for REF01CS-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 REF01 series belongs to Analog Devices' precision voltage reference product line, engineered for metrology, industrial automation, and aerospace applications demanding low drift, low noise, and long-term stability under harsh environmental conditions.
FAQ
What is the operating temperature range for REF01CS-REEL7?
The REF01CS-REEL7 is rated for −40°C to +85°C operation, matching the CS-grade specification defined in the REF01/REF02/REF03 datasheet Rev. M. This range applies specifically to the SOIC-8 (S-suffix) package variant and supports deployment in industrial control cabinets and outdoor instrumentation enclosures without forced cooling.
Can REF01CS-REEL7 drive a 1 kΩ load at full accuracy?
Yes - REF01CS-REEL7 sources up to 10 mA, so it can drive a 1 kΩ load (10 mA at 10 V) while maintaining its specified ±0.3% initial accuracy and ≤8.5 ppm/°C tempco. Load regulation is characterized at 50–80 ppm/mA, contributing ≤±0.08 mV error under full load, well within the overall tolerance budget.
How is the TEMP pin used in REF01CS-REEL7?
The TEMP pin on REF01CS-REEL7 outputs an unbuffered bandgap voltage of 580 mV at 25°C with a linear 1.96 mV/°C coefficient. It is not intended for regulation but enables accurate die temperature estimation - for example, reading 620 mV indicates ~20.4°C above 25°C - supporting thermal compensation algorithms in precision sensor systems.
Does REF01CS-REEL7 require external capacitors?
REF01CS-REEL7 functions stably without external components, but a 0.1 µF ceramic capacitor on VOUT is highly recommended to reduce low-frequency noise and improve transient response. An additional 1–10 µF bulk capacitor may be added in parallel for high-dynamic-load applications, though it increases turn-on settling time beyond the specified 5 µs.
Is REF01CS-REEL7 pin-compatible with newer Analog Devices references?
Yes - REF01CS-REEL7 is pin-compatible with the ADR01ARZ-REEL7, which shares the same SOIC-8 footprint, pinout, and basic electrical interface. However, ADR01ARZ-REEL7 offers improved specs (±0.1% accuracy, 3 ppm/°C tempco) and requires verification of thermal layout and noise filtering for seamless integration into existing REF01CS-REEL7 designs.
REF01CS-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- REF01
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 8 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 65ppm/°C
- Noise - 0.1Hz to 10Hz:
- 30µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 13V ~ 33V
- Current - Supply:
- 1.6mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
REF01CS-REEL7 FAQ
1.How can I place an order for REF01CS-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF01CS-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 REF01CS-REEL7 reliable?
The price and inventory of REF01CS-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF01CS-REEL7 is usually 5 days.
3.What payment methods are accepted for REF01CS-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF01CS-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF01CS-REEL7?
REF01CS-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF01CS-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 REF01CS-REEL7?
For technical support, including REF01CS-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF01CS-REEL7 requirements.
6.How does Aetrix verify that REF01CS-REEL7 is sourced from the original manufacturer or authorized distributors?
All REF01CS-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 REF01CS-REEL7 meets industry standards.
7.What is the process for return or replacement of REF01CS-REEL7?
All REF01CS-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with REF01CS-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 REF01CS-REEL7 part is unused and in its original packaging.
Return procedure for REF01CS-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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