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Analog Devices Inc./Maxim Integrated REF01CP+
- Part No.:
- REF01CP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
REF01CP+.pdf
- Description:
- IC VREF SERIES 1% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,037
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Product details
Overview
REF01CP+ from Maxim Integrated is a precision 10V voltage reference IC in an 8-pin plastic DIP package, featuring ±100mV initial output error, 65ppm/°C max temperature coefficient over 0°C to +70°C, 10.00V nominal output, and 1mA quiescent current. It supports ±6% output adjustment via external trim resistor and delivers stable reference performance for high-accuracy analog signal chains in industrial instrumentation and calibration systems.
For engineers reviewing the REF01CP+ datasheet, REF01CP+ pinout, REF01CP+ application, or REF01CP+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated alternative options, and supply-ready procurement details - all grounded in Maxim's official REF01 family documentation and electrical characteristics tables.
Technical Context
The REF01CP+ implements a bandgap-based two-terminal shunt-like architecture with internal trimming, enabling precise 10V output without external components beyond the optional trim resistor. Its output remains stable across input voltages from 13V to 30V and load currents up to 8mA at room temperature.
Unlike the REF02 series, the REF01CP+ has no TEMP pin (Pin 3 is NC), and its temperature stability is specified over 0°C to +70°C only. Output adjustment does not degrade TCVO significantly - change is limited to 0.7ppm/°C per 100mV of trim, preserving system-level accuracy during calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.00V ±100mV at TA = +25°C - sets absolute scaling for 12–16-bit ADCs/DACs requiring ≤0.1% full-scale error. |
| Tempco (Max) | 65ppm/°C over 0°C to +70°C - contributes ≤465µV drift across operating range, critical for unheated lab-grade meters. |
| Initial Error | ±100mV (±1.0%) - allows post-manufacturing system-level trimming to achieve <0.01% final accuracy. |
| Quiescent Current | 1.0–1.6mA - enables low-power operation in battery-backed calibration references and portable test equipment. |
| Input Voltage Range | 13V to 30V - compatible with standard +15V and +24V industrial rails; avoids need for pre-regulation in many designs. |
| Output Adjustment | ±6% (±600mV) via 10kΩ potentiometer - supports binary-aligned outputs (e.g., 10.240V) and compensates for downstream gain errors. |
| Load Current | Up to 8mA at TA = TMIN to TMAX - sufficient to drive op-amp buffers, ADC reference inputs, and multiple parallel circuits. |
Pinout & Package
REF01CP+ uses an 8-pin plastic dual-in-line package (P8-2), with 0.3" wide body and 0.1" lead pitch. Pin 3 is No Connection (NC); functional pins are fully compatible with industry-standard REF01 pinout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Reference Output | Stable 10V source; must be decoupled with ≥1µF ceramic capacitor to suppress noise and ensure stability under dynamic loads. |
| 2 (TRIM) | Adjustment Terminal | Connects to center tap of 10kΩ potentiometer between VOUT and GND; enables fine-tuning without altering tempco significantly. |
| 3 (NC) | No Connection | Not internally bonded; must remain floating - no routing, grounding, or capacitive loading permitted. |
| 4 (GND) | Analog Ground Reference | Return path for reference current and trim network; requires low-impedance connection to system AGND plane. |
| 5 (N.C.) | No Connection | Unused pin; electrically isolated and should not be connected. |
| 6 (N.C.) | No Connection | Unused pin; electrically isolated and should not be connected. |
| 7 (N.C.) | No Connection | Unused pin; electrically isolated and should not be connected. |
| 8 (VIN) | Input Supply | Accepts 13–30V DC; power dissipation must stay below 500mW (derated above +36°C) to avoid thermal drift. |
Key Features
| Feature | Design Value |
|---|---|
| Pretrimmed 10V Output | Factory-set to 10.00V ±100mV - eliminates need for user calibration in cost-sensitive production test fixtures. |
| ±6% Output Adjustment | Supports 9.4V–10.6V tuning range with minimal tempco degradation - enables compensation of DAC gain error or sensor offset in closed-loop systems. |
| Short-Circuit Protected | Withstands indefinite output short to GND or VIN - ensures robustness during board bring-up and field service. |
| Low Quiescent Current | 1.0–1.6mA consumption - extends battery life in portable calibrators and reduces self-heating-induced drift. |
| Stable Over Wide Input Range | Operates from 13V to 30V with <0.015%/V line regulation - simplifies power supply design in multi-rail industrial controllers. |
Applications
| High-Accuracy Digital Voltmeters | Precision Data Acquisition Systems |
|---|---|
Use Scenario: Benchtop DVMs requiring 0.01% basic accuracy over 0°C to +70°C ambient. IC Role / Device Role / Timing Role: Primary 10V reference for 24-bit sigma-delta ADC front-end and auto-zero amplifier stages. Use Value: 65ppm/°C tempco limits full-range drift to <465µV, enabling direct traceability to NIST standards without oven control. | Use Scenario: Modular DAQ chassis with hot-swappable analog input modules. IC Role / Device Role / Timing Role: Shared reference source for multiple simultaneous-sampling ADCs across 8 channels. Use Value: ±100mV initial error allows module-level trimming to <0.005% matching, ensuring channel-to-channel gain consistency. |
| Industrial Calibration Standards | Programmable Power Supply References |
Use Scenario: Portable field calibrator verifying 4–20mA transmitters and RTD simulators. IC Role / Device Role / Timing Role: Stable 10.000V output trimmed to 10.240V for binary-aligned digital control loops. Use Value: ±6% adjustability enables exact 10.240V setting with <0.7ppm/°C tempco penalty - matches 12-bit DAC resolution. | Use Scenario: Lab-grade programmable DC power supply with 0.02% setpoint accuracy. IC Role / Device Role / Timing Role: Master reference for feedback loop error amplifier and digital setpoint DAC. Use Value: 1mA quiescent current minimizes thermal load on reference PCB area, reducing localized temperature gradients that cause long-term drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF01EP+ | Lower max tempco (8.5ppm/°C vs. 65ppm/°C) and tighter initial error (±30mV vs. ±100mV); same 8-DIP package and pinout. | Suitable for metrology-grade instruments where <100µV total drift is required; not cost-optimized for production test gear. | Select REF01EP+ when long-term stability and lower thermal drift outweigh cost sensitivity. |
| MAX6035AESA+ | 5V output, SOT23-3 package, 15ppm/°C max tempco, 35ppm/°C typical; higher PSRR and lower noise than REF01CP+. | Used in space-constrained, low-voltage embedded systems; lacks trim capability and 10V output. | Choose MAX6035AESA+ for compact 5V-referenced designs needing better noise/PSRR, but not for 10V or adjustable applications. |
Compared with REF01CP+, REF01EP+ offers superior temperature stability and tighter initial tolerance at higher cost, while MAX6035AESA+ provides modern 5V performance in a tiny package but sacrifices adjustability and output voltage flexibility - making REF01CP+ the optimal balance for cost-sensitive, 10V, trimmable industrial references.
Availability
REF01CP+ is available at Aetrix Electronics and suitable for industrial calibration standards, portable test equipment, and precision data acquisition systems requiring stable component supply across extended production lifecycles.
Supply support for REF01CP+ 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 REF01 product line was designed specifically for applications demanding stable, adjustable, and factory-trimmed voltage references - particularly in calibration equipment, precision measurement, and automated test systems where long-term accuracy and ease of system-level trimming are essential.
FAQ
What is the maximum input voltage rating for REF01CP+?
The absolute maximum input voltage for REF01CP+ is 30V DC. Exceeding this value risks permanent damage. The device operates safely within 13V to 30V for normal functionality, with derated power dissipation above +36°C to maintain thermal stability. REF01CP+ must never be operated at 40V like the REF01E/H variants - this distinction is explicitly defined in Maxim's Absolute Maximum Ratings table.
Does REF01CP+ include a temperature output pin like REF02?
No, REF01CP+ does not provide a temperature output. Pin 3 is designated NC (No Connection) per Maxim's official pin configuration diagram. Only REF02 variants feature a TEMP pin with 2.1mV/°C output. Using REF01CP+ in temperature-sensing roles requires an external sensor; its design purpose is strictly precision voltage referencing without integrated thermal transduction.
Can REF01CP+ be used in -40°C to +85°C environments?
No, REF01CP+ is rated only for 0°C to +70°C operation. For extended temperature range, select REF01CESA+ (–40°C to +85°C, SO-8 package) instead. The REF01CP+ datasheet explicitly limits its operating temperature to 0°C to +70°C - using it outside this range violates specifications and voids parametric guarantees including tempco and initial error.
What is the recommended trim resistor value for adjusting REF01CP+ output?
Maxim specifies a 10kΩ potentiometer for REF01CP+ output adjustment, connected between VOUT (Pin 1) and GND (Pin 4), with the wiper to TRIM (Pin 2). This configuration enables the full ±6% (±600mV) adjustment range while maintaining minimal impact on temperature coefficient - confirmed in the "Output Adjustment" section and Electrical Characteristics tables for REF01C variants.
Is REF01CP+ RoHS-compliant and lead-free?
Yes, REF01CP+ is RoHS-compliant and lead-free, as indicated by the "+" suffix in the part number per Maxim's Ordering Information. This designation confirms compliance with EU RoHS Directive 2011/65/EU and JEDEC JS-001 standards. The device uses matte tin lead finish and meets IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for surface-mount assembly.
REF01CP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- REF01
- Packaging:
- Tube
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 21 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 65ppm/°C
- Noise - 0.1Hz to 10Hz:
- 25µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 13V ~ 30V
- Current - Supply:
- 1.6mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
REF01CP+ FAQ
1.How can I place an order for REF01CP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for REF01CP+ 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 REF01CP+ reliable?
The price and inventory of REF01CP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF01CP+ is usually 5 days.
3.What payment methods are accepted for REF01CP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF01CP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF01CP+?
REF01CP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF01CP+ 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 REF01CP+?
For technical support, including REF01CP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF01CP+ requirements.
6.How does Aetrix verify that REF01CP+ is sourced from the original manufacturer or authorized distributors?
All REF01CP+ 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 REF01CP+ meets industry standards.
7.What is the process for return or replacement of REF01CP+?
All REF01CP+ units undergo pre-shipment inspection (PSI). If there is an issue with REF01CP+, 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 REF01CP+ part is unused and in its original packaging.
Return procedure for REF01CP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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