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Analog Devices Inc./Maxim Integrated REF02EP-G107
- Part No.:
- REF02EP-G107
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
REF02EP-G107.pdf
- Description:
- 5V VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:314
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Product details
Overview
REF02EP-G107 from Maxim Integrated is a precision 5V voltage reference with integrated linear temperature transducer output (TEMP pin), designed for high-accuracy analog systems requiring stable excitation and thermal monitoring. It delivers ±15mV initial output error, 8.5ppm/°C max temperature coefficient over 0°C to +70°C, and 10µVP-P (0.1Hz–10Hz) low-noise performance in an 8-pin plastic DIP package. Used in precision ADC/DAC calibration, digital voltmeters, and temperature-sensing front-ends.
For engineers reviewing the REF02EP-G107 datasheet, REF02EP-G107 pinout, REF02EP-G107 application, or REF02EP-G107 equivalent, this page provides verified specifications, pin-level circuit roles, real-world use scenarios, and validated alternative options for voltage reference selection in industrial and test equipment designs.
Technical Context
The REF02EP-G107 implements a bandgap-based reference core with on-chip trimming for 5V nominal output and a dedicated TEMP pin delivering 630mV at +25°C with 2.1mV/°C linearity. Its trim terminal enables ±6% output adjustment (±300mV) without degrading temperature stability beyond 0.7ppm/°C per 100mV shift.
It operates from a single 7V–33V supply, draws only 1.0–1.4mA quiescent current, supports up to 21mA load/sink capability, and features short-circuit protection with indefinite output shorting to ground or VIN. The device is specified for 0°C to +70°C operation and housed in a P8-2 8-pin plastic DIP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.985V to 5.015V at 25°C, 0mA load - ensures tight 5V system reference accuracy before trimming. |
| Initial Error | ±15mV - guarantees ≤±0.3% absolute output deviation at room temperature, critical for factory-calibrated instruments. |
| Tempco (Max) | 8.5ppm/°C - limits worst-case drift to ±0.6mV over 0°C to +70°C ambient range, enabling <12-bit stability without external compensation. |
| Output Noise | 10µVP-P (0.1Hz–10Hz) - minimizes low-frequency noise contribution in high-resolution data acquisition systems. |
| TEMP Pin Output | 630mV ±10mV at +25°C, 2.1mV/°C slope - provides direct Kelvin-proportional voltage for remote temperature sensing with ±0.5°C accuracy. |
| Supply Range | 7V to 33V single supply - allows compatibility with common industrial rails (e.g., +12V, +15V, +24V) while maintaining regulation margin. |
| Quiescent Current | 1.0–1.4mA - enables low-power operation in battery-backed or energy-constrained instrumentation. |
Pinout & Package
REF02EP-G107 is supplied in an 8-pin plastic dual in-line package (P8-2), with 0.3-inch body width and through-hole mounting. Pin 1 is located at the left end of the top row when viewing the top side with notch or dot orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Reference Output | Stable 5V precision output; drives ADC references, DAC bias, or op-amp feedback networks with ≤10mA load. |
| 2 (TRIM) | Output Adjustment | Connects to 10kΩ potentiometer between VOUT and GND to adjust output ±6% (±300mV) without affecting tempco significantly. |
| 3 (TEMP) | Temperature Transducer | Provides linear 630mV @ 25°C, 2.1mV/°C output; requires ≤50nA load and ≤30pF capacitance for accuracy. |
| 4 (GND) | Analog Ground | Primary return path for reference and TEMP outputs; must be star-connected to minimize ground bounce errors. |
| 5 (N.C.) | No Connection | Internally unconnected; must remain floating-no routing or soldering permitted. |
| 6 (VIN) | Input Supply | Accepts 7V–33V DC input; internal regulator maintains stable core operation across wide supply variations. |
| 7 (N.C.) | No Connection | Internally unconnected; must remain floating-no routing or soldering permitted. |
| 8 (N.C.) | No Connection | Internally unconnected; must remain floating-no routing or soldering permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Pretrimmed 5V output | Guarantees 4.985–5.015V at 25°C, eliminating need for post-manufacture calibration in most production test systems. |
| Integrated TEMP pin | Delivers factory-calibrated 2.1mV/°C analog temperature signal-replaces discrete sensor+amplifier chains in compact designs. |
| Low 10µVP-P noise | Enables ≥16-bit effective resolution in sigma-delta ADC applications without external filtering overhead. |
| ±6% output adjustability | Allows system-level trimming of gain/offset errors in data converters or sensor signal chains using one external potentiometer. |
| Short-circuit protected | Withstands indefinite short to GND or VIN-eliminates need for external current-limiting resistors in ruggedized test equipment. |
Applications
| Digital Voltmeter Calibration | Precision Temperature Monitoring |
|---|---|
Use Scenario: Benchtop or handheld DVMs requiring traceable 5V reference for ADC full-scale calibration and auto-zero routines. IC Role / Device Role / Timing Role: Primary voltage reference source for 16-bit SAR or sigma-delta ADC; TEMP pin unused. Use Value: ±15mV initial error and 8.5ppm/°C tempco ensure <0.01% measurement accuracy over lab temperature ranges without recalibration. | Use Scenario: Industrial PLC modules measuring ambient or enclosure temperature via remote thermistor or RTD interfaces. IC Role / Device Role / Timing Role: Dual-function IC providing both 5V reference for sensor excitation and linear TEMP output for local thermal monitoring. Use Value: Eliminates separate temperature sensor IC and reference IC, reducing BOM count and PCB area by 30% in space-constrained I/O modules. |
| ADC/DAC Reference Source | Calibration Standard Generator |
Use Scenario: High-accuracy data acquisition systems using 18-bit ADCs and 16-bit DACs in automated test equipment (ATE). IC Role / Device Role / Timing Role: Low-noise, low-drift reference for both converter analog sections; TRIM pin used to align to exact 5.000V for binary scaling. Use Value: 10µVP-P noise and ±0.6mV max drift over 0°C–70°C preserve ENOB >15.5 bits across operating conditions. | Use Scenario: Portable field calibration tools generating stable 5V outputs for verifying multimeters and process calibrators. IC Role / Device Role / Timing Role: Core reference element in battery-powered, hand-held calibration standards with manual TRIM adjustment for metrology-grade verification. Use Value: ±15mV initial tolerance and ±300mV trim range enable factory and field adjustment to NIST-traceable 5.000V targets within 100ppm. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF02HP-G107 | Higher 25ppm/°C max tempco and ±25mV initial error; otherwise identical pinout, TEMP function, and supply range. | Suitable where cost sensitivity outweighs tempco requirement-e.g., non-critical industrial controls with wider ambient tolerance. | Select REF02HP-G107 only if system thermal drift budget allows ±1.75mV over 0°C–70°C and initial calibration margin exceeds ±0.5%. |
| MAX6035AESA+ | 5.0V fixed-output, 15ppm/°C max tempco, 20µVP-P noise, no TEMP pin, SOT23-3 package, 1.8V–5.5V supply. | Targeted at ultra-low-voltage, space-constrained portable devices-not compatible for TEMP-based sensing or high-voltage supply environments. | Choose MAX6035AESA+ only for battery-powered, low-supply applications lacking temperature monitoring needs and requiring minimal footprint. |
Compared with REF02EP-G107, REF02HP-G107 trades tighter initial accuracy and lower drift for cost reduction, while MAX6035AESA+ sacrifices TEMP functionality and high-voltage operation to achieve micropower and miniaturization-neither offers drop-in replacement capability due to differing tempco, noise, or feature set.
Availability
REF02EP-G107 is available at Aetrix Electronics and suitable for digital voltmeter calibration, precision ADC/DAC reference design, and industrial temperature monitoring systems requiring stable component supply, long-term parametric consistency, and legacy-compatible through-hole packaging.
Supply support for REF02EP-G107 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The REF02 product line was engineered specifically for precision instrumentation applications demanding simultaneous high-accuracy voltage referencing and integrated temperature sensing-enabling compact, calibrated front-end designs without external sensor amplification.
FAQ
What is the guaranteed initial output voltage tolerance of the REF02EP-G107 at +25°C?
The REF02EP-G107 has a guaranteed initial output voltage tolerance of ±15mV at +25°C and zero load, corresponding to 4.985V minimum and 5.015V maximum. This specification is 100% production tested and applies strictly to the REF02EP-G107 variant in its P8-2 plastic DIP package under the stated conditions.
Does the REF02EP-G107 provide a temperature-sensing output, and how is it used?
Yes, the REF02EP-G107 provides a dedicated TEMP pin (Pin 3) that outputs a voltage linearly proportional to absolute temperature: 630mV at +25°C with a slope of 2.1mV/°C. To use it, connect the pin to a high-impedance ADC input (≤50nA load) with ≤30pF capacitance; avoid routing near noisy signals to preserve ±0.5°C accuracy. This function is intrinsic to the REF02EP-G107 and not present in REF01 variants.
Can the output voltage of the REF02EP-G107 be adjusted, and what is the adjustment range?
Yes, the REF02EP-G107 output can be adjusted using the TRIM pin (Pin 2) with an external 10kΩ potentiometer between VOUT and GND. This allows ±6% adjustment (±300mV around 5V), enabling precise alignment to system requirements such as 5.000V for binary scaling. The REF02EP-G107's tempco increases by only 0.7ppm/°C per 100mV of adjustment, preserving stability.
What is the maximum operating supply voltage for the REF02EP-G107, and what happens above that limit?
The absolute maximum input voltage for the REF02EP-G107 is 40V. Operation above this level risks permanent damage. Within its functional range, the REF02EP-G107 regulates correctly from 7V to 33V. Exceeding 40V violates Absolute Maximum Ratings-even brief transients-and may degrade long-term reliability or cause immediate failure, regardless of duration.
Is the REF02EP-G107 pin-compatible with other REF02 variants like REF02HSA or REF02CP?
REF02EP-G107 shares the same 8-pin DIP pinout (P8-2) with all REF02-xP variants (e.g., REF02HP-G107, REF02CP-G107), but is not pin-compatible with SO-package variants like REF02HSA (S8-2). While electrical functions match across the REF02 family, the REF02EP-G107's plastic DIP footprint and thermal characteristics differ from surface-mount versions-PCB layout and reflow profiles are not interchangeable.
REF02EP-G107 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- REF02
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 21 mA
- Tolerance:
- -
- Temperature Coefficient:
- 8.5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 10µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 33V
- Current - Supply:
- 1.4mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
REF02EP-G107 FAQ
1.How can I place an order for REF02EP-G107 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF02EP-G107 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 REF02EP-G107 reliable?
The price and inventory of REF02EP-G107 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF02EP-G107 is usually 5 days.
3.What payment methods are accepted for REF02EP-G107?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF02EP-G107 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF02EP-G107?
REF02EP-G107 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF02EP-G107 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 REF02EP-G107?
For technical support, including REF02EP-G107 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF02EP-G107 requirements.
6.How does Aetrix verify that REF02EP-G107 is sourced from the original manufacturer or authorized distributors?
All REF02EP-G107 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 REF02EP-G107 meets industry standards.
7.What is the process for return or replacement of REF02EP-G107?
All REF02EP-G107 units undergo pre-shipment inspection (PSI). If there is an issue with REF02EP-G107, 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 REF02EP-G107 part is unused and in its original packaging.
Return procedure for REF02EP-G107:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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