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Analog Devices Inc. REF01CS-REEL
- Part No.:
- REF01CS-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
REF01CS-REEL.pdf
- Description:
- IC VREF SERIES 1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,454
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Product details
Overview
REF01CS-REEL from Analog Devices is a precision 10.0 V voltage reference IC with ±0.3% initial accuracy (A/E 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 - used in high-resolution ADC/DAC biasing and calibration circuits within industrial data acquisition systems.
For engineers reviewing the REF01CS-REEL datasheet, REF01CS-REEL pinout, REF01CS-REEL application, or REF01CS-REEL equivalent, this page delivers verified specifications, SOIC-8 package layout, temperature-sensing functionality via the TEMP pin, trim-adjustable output, and real-world design context for precision analog signal chains.
Technical Context
The REF01CS-REEL implements a laser-trimmed bandgap core with PTAT and CTAT voltage summation to generate a stable 10.0 V output. Its internal op amp and feedback network (R5/R6) set precise gain, while the unbuffered TEMP pin provides direct access to the bandgap voltage (580 mV @ 25°C, 1.96 mV/°C slope) for on-chip temperature monitoring.
It operates from 12 V to 36 V input, maintains regulation down to 2 V dropout, and supports output trimming via external 10 kΩ potentiometer. Load regulation is specified at ≤80 ppm/mA (A/E grade, 0–10 mA), and line regulation at ≤100 ppm/V (13–33 V), both including self-heating effects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.00 V nominal, ±0.3% initial accuracy (A/E grade) - enables direct replacement of 10 V references in 16-bit+ converter reference designs without recalibration. |
| Tempco | ≤8.5 ppm/°C (−55°C to +125°C, A/E grade) - ensures <±0.85 mV drift over full industrial range, critical for metrology-grade instruments. |
| Noise (0.1–10 Hz) | 30 µVp-p typical (SOIC-8 package) - contributes <0.5 LSB error in 20-bit, 10 V full-scale SAR ADCs. |
| Quiescent Current | 1.4 mA maximum - allows use in low-power, battery-backed precision sensors with minimal supply burden. |
| Load Drive | 10 mA sourcing capability - directly drives ADC reference inputs, op-amp buffers, or DAC bias networks without external gain stages. |
| Dropout Voltage | 2 V minimum - supports operation from 12 V supplies with >2 V headroom, simplifying power rail selection in multi-rail systems. |
| TEMP Pin Output | 580 mV @ 25°C, 1.96 mV/°C slope - enables ±1°C temperature sensing resolution using a single ADC channel with ratiometric measurement. |
Pinout & Package
REF01CS-REEL is supplied in an 8-lead SOIC package (S-suffix), surface-mount, with standard JEDEC MS-012AC footprint (5.3 mm × 6.2 mm). Pin 1 is marked by notch or dot; pins are not internally connected unless specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | NC | No internal connection - must remain floating or tied to GND per design; reserved for factory testing. |
| 2 | VIN | Positive supply input (12–36 V) - requires local 0.1 µF ceramic decoupling; supports wide-input industrial rails. |
| 3 | TEMP | Unbuffered bandgap voltage tap - provides linear temperature sensing (580 mV ±10 mV @ 25°C, 1.96 mV/°C) without added circuitry. |
| 4 | GND | Analog ground reference - must be connected to clean system AGND plane; shared return for VIN, VOUT, and TEMP. |
| 5 | TRIM | Output voltage adjustment node - accepts external 10 kΩ potentiometer for ±3% fine-tuning to compensate for system-level offsets. |
| 6 | VOUT | Stable 10.0 V reference output - capable of sourcing 10 mA; requires 0.1 µF ceramic capacitor for optimal noise and stability. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed bandgap architecture | Delivers ±0.3% initial accuracy and <8.5 ppm/°C tempco without external calibration components. |
| Integrated temperature sensor output | Direct TEMP pin access to unbuffered bandgap voltage enables accurate, low-cost board-level thermal monitoring. |
| Adjustable output via TRIM pin | Supports ±3% output tuning with 10 kΩ potentiometer - compensates for PCB trace resistance, solder shift, or long-term drift. |
| High PSRR and low noise | 30 µVp-p (0.1–10 Hz) and >70 dB supply rejection minimize coupling from noisy DC/DC converters. |
| Wide supply range & robust operation | Operates from 12 V to 36 V input with indefinite short-circuit tolerance - suitable for harsh industrial environments. |
Applications
| Industrial Data Acquisition | Precision Instrumentation |
|---|---|
Use Scenario: High-channel-count PLC analog input modules requiring stable 10 V reference for 24-bit sigma-delta ADCs. IC Role / Device Role / Timing Role: Primary voltage reference source for ADC front-end, providing excitation and conversion reference simultaneously. Use Value: 8.5 ppm/°C tempco ensures <±2 LSB error over −40°C to +85°C operating range, eliminating need for per-channel calibration. |
Use Scenario: Portable handheld multimeters with auto-ranging and true RMS measurement. IC Role / Device Role / Timing Role: Precision 10 V reference for dual-slope integrator and ADC reference ladder networks. Use Value: 30 µVp-p low-frequency noise prevents baseline wander during slow integrations, improving DC accuracy to 0.005%. |
| Military/Aerospace Test Equipment | Calibration Standards & Metrology |
Use Scenario: Rack-mounted automatic test equipment (ATE) performing parametric testing of high-speed DACs. IC Role / Device Role / Timing Role: Reference source for DAC output verification and INL/DNL characterization fixtures. Use Value: 10 mA drive strength powers multiple parallel reference paths without gain buffers, reducing fixture complexity and thermal drift. |
Use Scenario: Benchtop calibration standards used to verify laboratory-grade DMMs and calibrators. IC Role / Device Role / Timing Role: Stable 10 V reference node in closed-loop calibration circuit with external oven-controlled crystal oscillator timing. Use Value: Long-term stability of 50 ppm after 1000 hours enables quarterly recalibration intervals without performance degradation. |
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 | 10.0 V, ±0.1% initial accuracy, 3 ppm/°C max tempco, 1.8 mA IQ, SOIC-8 - higher accuracy and lower drift, but higher quiescent current. | Better suited for metrology-grade calibrators where sub-ppm stability is required; less ideal for battery-powered portable instruments. | Select ADR01ARZ-REEL7 when absolute accuracy and long-term drift dominate over power budget. |
| LT1021DCN-10#PBF | 10.0 V, ±0.05% initial accuracy, 2 ppm/°C max tempco, 1.2 mA IQ, PDIP-8 - ultra-low drift, but through-hole only and no TEMP pin. | Preferred in legacy lab equipment upgrades where socket compatibility matters; lacks integrated temperature sensing. | Choose LT1021DCN-10#PBF for retrofitting existing DIP-based designs needing highest possible stability without redesign. |
Compared with REF01CS-REEL, ADR01ARZ-REEL7 offers tighter initial tolerance and lower tempco at higher supply current, while LT1021DCN-10#PBF delivers superior drift performance in through-hole form but omits the TEMP diagnostic feature - making REF01CS-REEL the balanced choice for new SOIC-based industrial DAQ designs requiring integrated thermal awareness.
Availability
REF01CS-REEL is available at Aetrix Electronics and suitable for industrial process control systems, precision instrumentation, military/aerospace test equipment, and calibration standards requiring stable component supply with traceable lot history and extended lifecycle support.
Supply support for REF01CS-REEL 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, with design centers and manufacturing worldwide.
The REF01 series belongs to Analog Devices' precision voltage reference product line, engineered specifically for applications demanding high initial accuracy, low thermal drift, and integrated diagnostics - such as automated test equipment, industrial PLCs, and portable metrology tools.
FAQ
What is the guaranteed initial accuracy of REF01CS-REEL?
The REF01CS-REEL is rated for ±0.3% initial accuracy (A/E grade) at 25°C, corresponding to ±30 mV deviation from the nominal 10.00 V output. This specification is guaranteed across the full operating temperature range of −40°C to +85°C for the CS variant, and is laser-trimmed at wafer level to ensure consistency without post-package calibration.
Does REF01CS-REEL support output voltage adjustment?
Yes, REF01CS-REEL supports output voltage adjustment via its TRIM pin (Pin 5). Using an external 10 kΩ potentiometer configured per Figure 35 in the datasheet, the output can be trimmed ±3% around 10.0 V - enabling compensation for system-level errors such as PCB trace resistance, solder reflow shifts, or long-term aging drift in REF01CS-REEL itself.
Can the TEMP pin of REF01CS-REEL be used for accurate temperature measurement?
Yes, the TEMP pin of REF01CS-REEL provides a linear, unbuffered bandgap voltage output of 580 mV ±10 mV at 25°C with a temperature coefficient of 1.96 mV/°C. When measured ratiometrically against a stable ADC reference, it enables ±1°C resolution temperature monitoring - a feature confirmed in the REF01CS-REEL datasheet Section "Temperature Monitoring" and Figure 32.
What is the maximum load current REF01CS-REEL can source?
REF01CS-REEL can continuously source up to 10 mA while maintaining output regulation within specification. This is explicitly stated in the "LOAD CURRENT" row of the REF01 Specifications table (Page 3), and applies to A, E, and H grades. The device also tolerates indefinite short-circuit-to-ground conditions, enhancing robustness in industrial environments.
Which package type does REF01CS-REEL use, and what are its key mechanical dimensions?
REF01CS-REEL uses an 8-lead SOIC package (S-suffix), compliant with JEDEC MS-012AC outline. Its body dimensions are 5.3 mm × 6.2 mm, with 1.27 mm lead pitch and 1.75 mm maximum height. This surface-mount package is optimized for automated assembly and thermal performance (θJA = 130°C/W), and is explicitly designated in the ordering guide for the "CS" grade variant.
REF01CS-REEL 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-REEL FAQ
1.How can I place an order for REF01CS-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for REF01CS-REEL 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-REEL reliable?
The price and inventory of REF01CS-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF01CS-REEL is usually 5 days.
3.What payment methods are accepted for REF01CS-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF01CS-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF01CS-REEL?
REF01CS-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF01CS-REEL 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-REEL?
For technical support, including REF01CS-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF01CS-REEL requirements.
6.How does Aetrix verify that REF01CS-REEL is sourced from the original manufacturer or authorized distributors?
All REF01CS-REEL 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-REEL meets industry standards.
7.What is the process for return or replacement of REF01CS-REEL?
All REF01CS-REEL units undergo pre-shipment inspection (PSI). If there is an issue with REF01CS-REEL, 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-REEL part is unused and in its original packaging.
Return procedure for REF01CS-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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