My Inquiry
My Account
Analog Devices Inc. REF01HN8
- Part No.:
- REF01HN8
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
REF01HN8.pdf
- Description:
- IC VREF SERIES 0.5% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,489
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
REF01HN8 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, 20µVP-P (0.1Hz–10Hz) output noise, and 1.4mA max quiescent current - enabling high-stability excitation in bridge sensor circuits and trimming in precision DACs.
For engineers reviewing the REF01HN8 datasheet, REF01HN8 pinout, REF01HN8 application, or REF01HN8 equivalent, key selection criteria include its guaranteed 0°C–70°C temp range, untrimmed 10V output with ±3% adjustability, low line/load regulation (0.0001%/V and 0.0005%/mA), and compatibility with passive trim networks for system-level calibration.
Technical Context
The REF01HN8 implements a thermally compensated bandgap core with internal curvature correction, delivering stable 10V output across input voltages from 12V to 40V. Its architecture isolates reference generation from load transients via dedicated output and trim terminals, supporting both fixed and adjustable configurations without degrading drift performance.
Unlike the REF-02 variant, REF01HN8 omits the temperature-sensing pin (Pin 3), eliminating thermal voltage output functionality while preserving full 10V reference integrity. Its design targets applications requiring high DC stability over moderate temperature ranges, not wide-temp industrial or automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10V nominal, ±0.3% initial tolerance - enables direct use in 12-bit+ ADC/DAC references without factory trimming. |
| Temp Coefficient | 8ppm/°C typical (0°C to 70°C) - ensures ≤0.8mV drift over full operating range, critical for bridge excitation stability. |
| Noise (0.1–10Hz) | 20µVP-P - supports low-noise instrumentation amplifier front-ends without added filtering. |
| Line Regulation | 0.0001%/V - maintains output stability despite ±1V input ripple on 15V supply rails. |
| Load Regulation | 0.0005%/mA - holds accuracy under dynamic loads up to 10mA, suitable for driving op-amp inputs and ADC references. |
| Quiescent Current | 1.4mA max - allows battery-powered portable instrumentation with multi-hour runtime. |
| Input Voltage Range | 12V to 40V - accommodates standard lab supplies and unregulated DC rails with margin for ripple. |
Pinout & Package
REF01HN8 uses the N8 package: 8-lead narrow-body plastic DIP (0.300" width), with 0.100" lead pitch and JEDEC MS-001 compliant dimensions. Pin 1 is marked by a notch or dot; case ground (Pin 5) is internally connected to the metal heat slug in metal-can variants but isolated in this plastic DIP version.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC (No Connect) | Internally tied - must remain floating; no external connection permitted. |
| 2 | INPUT | Reference input supply rail; accepts 12V–40V with minimal dropout requirement. |
| 3 | TRIM | Adjustment node for external potentiometer (10kΩ typical); enables ±3% output tuning without affecting TC. |
| 4 | OUTPUT | Stable 10V reference source; capable of sourcing up to 10mA or sinking –0.3mA. |
| 5 | GND (Case) | Signal and power return; electrically isolated from plastic DIP body - serves as circuit common. |
| 6 | NC (No Connect) | Internally tied - must remain floating; no external connection permitted. |
| 7 | NC (No Connect) | Internally tied - must remain floating; no external connection permitted. |
| 8 | NC (No Connect) | Internally tied - must remain floating; no external connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Trimmed Output Accuracy | ±0.3% initial tolerance - eliminates need for post-assembly calibration in production test flows. |
| Low Temperature Drift | 8ppm/°C typical over 0°C–70°C - reduces thermal error to <0.8mV in ambient-limited industrial enclosures. |
| Low 0.1–10Hz Noise | 20µVP-P - avoids adding noise floor in precision weigh-scale and strain-gauge signal chains. |
| High Line Rejection | 0.0001%/V line regulation - rejects supply ripple without requiring ultra-low-noise LDO pre-regulation. |
| Adjustable Output | ±3% trim range via external resistor network - supports system-level gain calibration without redesigning reference stage. |
Applications
| Bridge Sensor Excitation | Precision DAC Reference |
|---|---|
|
Use Scenario: Wheatstone bridge with strain gauges in industrial load cells, requiring stable excitation to resolve micro-strain changes. IC Role / Device Role / Timing Role: 10V reference source for bridge bias; feeds instrumentation amplifier input stage. Use Value: 8ppm/°C drift ensures <0.01% full-scale error over 0°C–70°C ambient, directly improving measurement repeatability. |
Use Scenario: 16-bit DAC (e.g., LTC2657) in programmable power supply feedback loop demanding sub-LSB accuracy. IC Role / Device Role / Timing Role: Precision voltage reference for DAC VREF input, defining full-scale output range. Use Value: ±0.3% initial accuracy and 20µVP-P noise prevent DAC integral nonlinearity degradation beyond 14-bit effective resolution. |
| Calibrated Voltage Source | Multi-Range Instrumentation |
|
Use Scenario: Benchtop multimeter auto-ranging circuit requiring traceable 10V calibration point at multiple decades. IC Role / Device Role / Timing Role: Primary reference for internal ADC and analog switch matrix calibration sequence. Use Value: TRIM pin enables one-time factory adjustment to NIST-traceable 10.000V, locking accuracy across product lifetime. |
Use Scenario: Portable data logger with selectable input ranges (±10V, ±5V, ±1V) using same ADC front-end. IC Role / Device Role / Timing Role: Master reference feeding resistor-divider networks that generate scaled reference voltages. Use Value: Low load regulation (0.0005%/mA) prevents crosstalk between range-switching paths, ensuring consistent gain accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT1019CN8#PBF | 0.05% initial accuracy, 5ppm/°C TC, pin-compatible 8-lead PDIP - tighter specs but higher cost and 1.8mA IQ. | Required where 14-bit+ system accuracy must be maintained over extended temperature or long-term aging. | Select LT1019CN8#PBF when REF01HN8's 8ppm/°C TC or ±0.3% tolerance fails final system error budget. |
| REF01EN8#PBF | Identical 10V output, ±0.3% accuracy, and 8ppm/°C TC, but rated for same 0°C–70°C range - differs only in grade screening (E vs H). | No functional difference; E-grade may have looser lot-to-lot consistency but identical datasheet limits. | REF01EN8#PBF offers identical electrical performance at potentially lower cost if H-grade screening is unnecessary. |
Compared with REF01HN8, LT1019CN8#PBF provides superior long-term stability and tighter initial tolerance for metrology-grade systems, while REF01EN8#PBF delivers identical spec compliance at reduced qualification cost - making both viable depending on calibration rigor and BOM cost targets.
Availability
REF01HN8 is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, and calibrated instrumentation requiring stable component supply with documented traceability and lifecycle continuity.
Supply support for REF01HN8 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) designs high-performance analog, mixed-signal, and power management ICs for precision measurement and control systems.
The REF-01 family was engineered specifically for cost-sensitive industrial instrumentation needing stable 10V references with low drift, low noise, and simple trim capability - targeting bridge sensors, DACs, and calibrated sources.
FAQ
What is the operating temperature range specified for REF01HN8?
The REF01HN8 is characterized and guaranteed for operation from 0°C to 70°C. This range is explicitly defined in the ordering information table and applies to all electrical specifications unless otherwise noted. It does not support extended industrial (–40°C to +85°C) or military (–55°C to +125°C) temperature grades - those require REF01A or REF01H metal-can variants.
Does REF01HN8 include a temperature output pin like the REF-02 series?
No, REF01HN8 does not provide a temperature output. Pin 3 is designated as TRIM and used exclusively for output voltage adjustment. The temperature-sensing function (620mV at 25°C, 2.1mV/°C) is exclusive to REF-02 variants (e.g., REF02HN8) and is physically omitted in REF01HN8's internal design and pinout.
What is the maximum load current REF01HN8 can source or sink?
REF01HN8 can source up to 10mA and sink up to –0.3mA while maintaining specified line and load regulation. Exceeding these limits risks output deviation beyond the 0.0005%/mA load regulation spec and may cause thermal instability. For higher sink capability, external buffer amplifiers are recommended.
Can REF01HN8 be used with input voltages below 12V?
No - the absolute minimum input voltage for REF01HN8 is 12V, as stated in the Electrical Characteristics table. Operation below 12V violates the specified input voltage range and results in unregulated output, loss of accuracy, and potential dropout. A minimum 2V headroom above the 10V output is required for proper bandgap core biasing.
Is REF01HN8 RoHS-compliant and lead-free?
Yes, REF01HN8#PBF is the lead-free, RoHS-compliant version, indicated by the "#PBF" suffix per Linear Technology/Analog Devices packaging nomenclature. It uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 1 requirements for standard surface-mount assembly.
REF01HN8 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:
- ±0.5%
- Temperature Coefficient:
- 25ppm/°C
- Noise - 0.1Hz to 10Hz:
- 20µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 12V ~ 40V
- Current - Supply:
- 1.4mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
REF01HN8 FAQ
1.How can I place an order for REF01HN8 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF01HN8 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 REF01HN8 reliable?
The price and inventory of REF01HN8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF01HN8 is usually 5 days.
3.What payment methods are accepted for REF01HN8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF01HN8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF01HN8?
REF01HN8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF01HN8 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 REF01HN8?
For technical support, including REF01HN8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF01HN8 requirements.
6.How does Aetrix verify that REF01HN8 is sourced from the original manufacturer or authorized distributors?
All REF01HN8 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 REF01HN8 meets industry standards.
7.What is the process for return or replacement of REF01HN8?
All REF01HN8 units undergo pre-shipment inspection (PSI). If there is an issue with REF01HN8, 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 REF01HN8 part is unused and in its original packaging.
Return procedure for REF01HN8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF01HN8 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…
