My Inquiry
My Account
Analog Devices Inc. REF01CN8
- Part No.:
- REF01CN8
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
REF01CN8.pdf
- Description:
- IC VREF SERIES 1% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,892
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
REF01CN8 from Analog Devices (formerly Linear Technology) is a precision 10V bandgap voltage reference in an 8-lead plastic DIP package, rated for 0°C to 70°C operation. It delivers ±0.3% initial accuracy, 8ppm/°C typical temperature coefficient, 30μVP-P (0.1Hz–10Hz) output noise, and supports up to 10mA load current - ideal for trimming high-resolution ADCs and DACs in industrial data acquisition systems.
For engineers reviewing the REF01CN8 datasheet, REF01CN8 pinout, REF01CN8 application, or REF01CN8 equivalent, key selection criteria include its guaranteed 0°C–70°C temp range, ±2.7% output adjustability via external resistor, low 1.6mA max quiescent current, and compatibility with bridge excitation and precision regulator topologies requiring stable 10V references.
Technical Context
The REF01CN8 implements a trimmed bandgap core with internal temperature compensation and adjustable output via external trim resistors connected to Pin 6 (TRIM). Its architecture isolates reference output loading from input supply variations using a buffered output stage, enabling stable performance under varying line (12V–30V input) and load (0–10mA) conditions.
Unlike the REF-02 variant, REF01CN8 omits the temperature-sensing output (Pin 3), simplifying use in pure voltage reference applications. It shares pinout and functional behavior with REF-01E/H variants but is specified to tighter output voltage tolerance (9.9V–10.1V) and higher TC (8ppm/°C max) than A-grade parts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 9.9V to 10.1V at 0mA load - ensures ±0.3% initial accuracy without calibration. |
| Temp Coefficient | 8ppm/°C max over 0°C–70°C - limits drift to ≤0.56mV across full operating range. |
| Output Noise | 30μVP-P (0.1Hz–10Hz) - suitable for 16-bit+ converter systems where low-frequency noise dominates error budget. |
| Input Voltage Range | 12V to 30V - supports standard ±15V rails and unregulated 24V industrial supplies. |
| Load Current | ±0.3mA to +10mA - enables direct drive of op-amp inputs and moderate-current reference buffers. |
| Quiescent Current | 0.65mA typ / 1.6mA max - minimizes self-heating and power dissipation in space-constrained designs. |
| Line Regulation | 0.0001%/V min / 0.015%/V max - maintains output stability despite input ripple or supply sag. |
Pinout & Package
REF01CN8 uses the N8 package: 8-lead narrow-body plastic DIP (0.300" width), JEDEC MS-001 compliant, with 0.100" lead pitch and through-hole mounting. Package dimensions: 0.255" × 0.400" × 0.130", RoHS-compliant lead-free finish (PBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Internally unused - must remain unconnected per datasheet. |
| 2 (INPUT) | Reference Input Supply | Accepts 12V–30V DC; powers internal bandgap and buffer stages. |
| 3 (TEMP) | Temperature Output | Not connected on REF-01 variants - leave floating or grounded per layout guidelines. |
| 4 (GND) | Analog Ground Reference | Primary return path for reference output and internal circuitry; requires low-impedance connection. |
| 5 (NC) | No Connect | Internally unused - must remain unconnected. |
| 6 (TRIM) | Output Adjustment Terminal | Connects to external 10kΩ potentiometer for ±2.7% fine-tuning of output voltage. |
| 7 (NC) | No Connect | Internally unused - must remain unconnected. |
| 8 (OUTPUT) | Precision 10V Output | Stable, buffered 10V source; capable of sourcing up to 10mA with <0.01%/mA load regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed 0°C to 70°C operation | Enables use in commercial and light-industrial environments without derating or thermal margining. |
| ±2.7% output adjustment range | Allows system-level calibration to compensate for PCB trace resistance, amplifier offset, and sensor gain errors. |
| Low 30μVP-P low-frequency noise | Reduces quantization uncertainty in high-resolution delta-sigma ADCs and precision weigh-scale front-ends. |
| High line rejection (0.0001%/V) | Maintains accuracy even with noisy or poorly regulated 24V DC inputs common in PLC and motor-control systems. |
| 10mA output drive capability | Eliminates need for external buffer op-amps in most 12-bit–16-bit data converter reference circuits. |
Applications
| Industrial Data Acquisition | Bridge Sensor Excitation |
|---|---|
|
Use Scenario: High-accuracy 16-bit analog input modules in programmable logic controllers (PLCs) measuring temperature, pressure, and flow. IC Role / Device Role / Timing Role: Primary 10V reference for successive-approximation ADCs and instrumentation amplifiers. Use Value: ±0.3% initial accuracy and 8ppm/°C TC ensure measurement repeatability across factory-floor ambient shifts without recalibration. |
Use Scenario: Precision Wheatstone bridge circuits for strain gauges and load cells in test-and-measurement equipment. IC Role / Device Role / Timing Role: Stable excitation source for ratiometric bridge-to-voltage conversion. Use Value: Low 30μVP-P noise prevents resolution loss in microvolt-level differential outputs; ±2.7% trim compensates for bridge imbalance. |
| Calibrated Power Supplies | Portable Instrumentation |
|
Use Scenario: Benchtop programmable DC power supplies requiring stable, user-adjustable output voltage setpoints. IC Role / Device Role / Timing Role: Master reference for digital-to-analog control loop feedback and display scaling. Use Value: 10mA drive capability directly interfaces with DAC output buffers; 1.6mA max IQ minimizes thermal drift in enclosed enclosures. |
Use Scenario: Battery-powered handheld multimeters and portable oscilloscopes needing long-term reference stability. IC Role / Device Role / Timing Role: Low-power 10V reference for auto-ranging ADC front-ends and autoranging voltage dividers. Use Value: 0.65mA typical supply current extends battery life; 0°C–70°C rating covers indoor field-use conditions without fan cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF01EN8#PBF | Same N8 package, identical pinout, but specified to ±0.3% and 5ppm/°C typical TC (vs. REF01CN8's 8ppm/°C max). | Preferred for higher-accuracy systems where tighter drift spec justifies cost premium. | Select REF01EN8 when long-term stability over temperature is critical and budget allows. |
| LT1019CN8#PBF | Pin-compatible upgrade offering 0.05% initial accuracy, 5ppm/°C max TC, and lower 10μVP-P noise - but requires 13.5V–40V input. | Suitable for next-generation designs targeting 18-bit+ resolution where REF01CN8 noise or accuracy limits performance. | Choose LT1019CN8 when upgrading legacy REF-01-based systems for improved resolution and reduced calibration frequency. |
Compared with REF01CN8, REF01EN8 offers better temperature stability at same cost tier, while LT1019CN8 delivers significantly higher accuracy and lower noise but demands higher minimum input voltage - making REF01CN8 optimal for cost-sensitive, 16-bit industrial DAQ where 8ppm/°C drift is acceptable.
Availability
REF01CN8 is available at Aetrix Electronics and suitable for industrial data acquisition, precision bridge excitation, and calibrated power supply applications requiring stable component supply with consistent parametric performance across production lots.
Supply support for REF01CN8 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 (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs, serving industrial, automotive, communications, and healthcare markets.
The REF-01 product line was designed specifically for cost-sensitive, high-stability voltage reference needs in industrial instrumentation and data conversion systems - balancing accuracy, noise, and power efficiency in through-hole packages.
FAQ
What is the maximum input voltage for REF01CN8?
The absolute maximum input voltage for REF01CN8 is 30V DC. Operating within the recommended 12V to 30V range ensures compliance with electrical specifications including line regulation and thermal performance. Exceeding 30V risks permanent damage per Absolute Maximum Ratings. REF01CN8 is not rated for operation above 30V under any condition.
Can REF01CN8 be used as a 5V reference?
No, REF01CN8 is a fixed 10V precision reference and cannot be configured as a 5V output. The REF-02 family (e.g., REF02CN8) provides 5V output with identical packaging and pinout. Using REF01CN8 in a 5V application would require external attenuation or regulation, compromising accuracy and noise performance - always select REF02CN8 for native 5V reference needs.
Does REF01CN8 provide a temperature output voltage?
No, REF01CN8 does not provide a temperature output voltage. Pin 3 (TEMP) is reserved for the REF-02 variant only and must remain unconnected on REF01CN8. The datasheet explicitly states "DO NOT CONNECT ON REF-01", and no temperature-proportional voltage is generated or supported by this part number.
What is the purpose of the TRIM pin on REF01CN8?
The TRIM pin (Pin 6) on REF01CN8 enables ±2.7% adjustment of the 10V output using an external 10kΩ potentiometer connected between OUTPUT and TRIM, with wiper tied to GND. This allows system-level calibration to correct for total error contributions from downstream components - such as ADC gain error, PCB trace resistance, and op-amp offset - without modifying the reference IC itself.
Is REF01CN8 RoHS compliant and lead-free?
Yes, REF01CN8#PBF is RoHS compliant and features a lead-free finish (Pb-free). The "#PBF" suffix denotes lead-free packaging per JEDEC J-STD-609, with tin-silver-copper (SAC305) solderable terminations. It meets EU RoHS Directive 2011/65/EU and is compatible with standard lead-free reflow profiles.
REF01CN8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- REF01
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 65ppm/°C
- Noise - 0.1Hz to 10Hz:
- 30µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 8V ~ 33V
- Current - Supply:
- 1.6mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
REF01CN8 FAQ
1.How can I place an order for REF01CN8 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF01CN8 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 REF01CN8 reliable?
The price and inventory of REF01CN8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF01CN8 is usually 5 days.
3.What payment methods are accepted for REF01CN8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF01CN8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF01CN8?
REF01CN8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF01CN8 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 REF01CN8?
For technical support, including REF01CN8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF01CN8 requirements.
6.How does Aetrix verify that REF01CN8 is sourced from the original manufacturer or authorized distributors?
All REF01CN8 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 REF01CN8 meets industry standards.
7.What is the process for return or replacement of REF01CN8?
All REF01CN8 units undergo pre-shipment inspection (PSI). If there is an issue with REF01CN8, 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 REF01CN8 part is unused and in its original packaging.
Return procedure for REF01CN8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF01CN8 Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
