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Analog Devices Inc./Maxim Integrated REF01CESA+T
- Part No.:
- REF01CESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
REF01CESA+T.pdf
- Description:
- IC VREF SERIES 1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,160
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Product details
Overview
REF01CESA+T from Maxim Integrated is a precision 10V voltage reference IC designed for high-stability analog systems. It delivers ±100mV initial accuracy, 65ppm/°C max temperature coefficient over –40°C to +85°C, and operates from 13V to 33V input with 1.4mA max quiescent current. Used in precision ADC/DAC calibration, digital voltmeters, and industrial sensor signal chains where wide-temperature stability is critical.
For engineers reviewing the REF01CESA+T datasheet, REF01CESA+T pinout, REF01CESA+T application, or REF01CESA+T equivalent, key selection criteria include its extended temperature range (–40°C to +85°C), SO-8 package, 10V output adjustability (±6%), low 20µVP-P (0.1Hz–10Hz) noise, and guaranteed load regulation of 0.010%/mA up to 8mA.
Technical Context
The REF01CESA+T implements a bandgap-based reference core with internal trimming for 10V nominal output, supporting external adjustment via a 10kΩ potentiometer between TRIM and GND. Its architecture maintains stable performance across temperature via curvature-compensated circuitry, with self-heating effects included in line/load regulation specs.
It features short-circuit protection, indefinite output short duration capability, and operates as a two-terminal shunt-like device with VIN, VOUT, GND, and TRIM pins - no TEMP pin (unlike REF02). Input rejection exceeds 70dB, and turn-on settling time is 400µs to ±0.1%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.00V ±100mV at TA = +25°C; enables direct replacement of 10V references in legacy metrology designs. |
| Tempco (Max) | 65ppm/°C over –40°C to +85°C; ensures ≤±5.2mV total drift across full operating range. |
| Initial Accuracy | ±100mV (±1.0%) at +25°C; supports 12-bit system calibration without post-manufacture trimming. |
| Input Voltage Range | 13V to 33V; compatible with standard industrial 15V/24V rails and avoids need for pre-regulation. |
| Quiescent Current | 1.4mA max; allows operation from low-power supplies while maintaining 10mA load capability. |
| Output Noise | 20µVP-P (0.1Hz–10Hz); preserves ENOB in 16-bit+ SAR ADCs without external filtering. |
| Load Regulation | 0.010%/mA (0–8mA); holds output within ±0.8mV under full load variation, critical for multiplexed reference distribution. |
Pinout & Package
REF01CESA+T is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package per JEDEC MS-012, 150mil body width, with gull-wing leads and Pb-free finish (RoHS compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Reference Output | 10V precision source; requires low-ESR ceramic bypass (≥1µF) directly at pin for stability. |
| 2 (TRIM) | Adjustment Terminal | Connects to wiper of 10kΩ pot; ±6% output tuning with <0.7ppm/°C tempco shift per 100mV change. |
| 3 (GND) | Analog Ground | Return path for reference current and trim network; must be star-connected to minimize ground bounce. |
| 4 (N.C.) | No Connection | Internally unconnected; leave floating or tie to GND per layout best practice. |
| 5 (N.C.) | No Connection | Internally unconnected; no routing or soldering required. |
| 6 (VIN) | Positive Supply Input | Accepts 13V–33V; internal current-limiting protects against overvoltage transients. |
| 7 (N.C.) | No Connection | Internally unconnected; avoid routing traces or vias beneath this pad. |
| 8 (N.C.) | No Connection | Internally unconnected; electrically isolated from die. |
Key Features
| Feature | Design Value |
|---|---|
| Pretrimmed 10V Output | Factory-set to 10.00V ±100mV, eliminating need for manual calibration in production test. |
| Wide-Temperature Operation | Specified from –40°C to +85°C, enabling use in outdoor instrumentation and automotive under-hood modules. |
| Adjustable Output Range | ±6% tuning (9.4V–10.6V) supports binary-scaled references like 10.240V for 10-bit DAC full-scale alignment. |
| Short-Circuit Protected | Withstands indefinite output short to GND or VIN without latch-up or parametric shift. |
| Low Wideband Noise | 20µVP-P (0.1Hz–10Hz) and <1µV/√Hz at 10kHz enables high-resolution data acquisition without added filtering. |
Applications
| Precision Calibration Standard | Digital Voltmeter Front-End |
|---|---|
Use Scenario: Benchtop calibration of multimeters and data loggers requiring traceable 10V reference stability over 24-hour periods. IC Role / Device Role / Timing Role: Primary voltage reference source providing excitation and measurement baseline for 6½-digit DMMs. Use Value: 65ppm/°C tempco and ±100mV initial error ensure calibration validity across lab ambient shifts without recalibration. | Use Scenario: High-accuracy front-end reference for handheld digital voltmeters operating in variable environmental conditions. IC Role / Device Role / Timing Role: Stable 10V reference for integrating ADC conversion, rejecting supply ripple and thermal drift. Use Value: 1.4mA quiescent current extends battery life while maintaining 0.010%/mA load regulation for consistent readings across auto-ranging. |
| Industrial Sensor Signal Chain | Programmable Logic Controller Analog I/O |
Use Scenario: Reference for 4–20mA transmitter conditioning circuits in oil & gas field instruments exposed to –40°C cold starts. IC Role / Device Role / Timing Role: Precision excitation source for bridge sensors and gain-setting reference for programmable-gain amplifiers. Use Value: –40°C to +85°C rating and 65ppm/°C spec guarantee <±5.2mV total output drift across extreme ambient swings. | Use Scenario: Modular analog input card in PLC backplanes requiring interchangeable 10V references across multiple channel types. IC Role / Device Role / Timing Role: Shared reference for simultaneous sampling of thermocouple, RTD, and voltage inputs on single PCB. Use Value: SO-8 package enables compact layout; ±6% trim allows fine-tuning to match channel-specific gain errors without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF01CSA+ | Same 10V output, 65ppm/°C tempco, but rated only for 0°C to +70°C; identical SO-8 package and pinout. | Limited to commercial-temperature industrial controls; unsuitable for extended-temperature deployments. | Select REF01CSA+ only when ambient stays within 0°C–70°C and cost sensitivity outweighs reliability margin. |
| MAX6143AESA+ | 10V output, 20ppm/°C max tempco, 0.1% initial accuracy, SO-8; lower noise (12µVP-P) but higher 2.5mA quiescent current. | Better stability for metrology-grade systems; tighter spec compliance at expense of power budget. | Choose MAX6143AESA+ when sub-20ppm/°C drift is mandatory and supply headroom permits 2.5mA draw. |
Compared with REF01CESA+T, REF01CSA+ sacrifices extended temperature coverage for identical cost and footprint, while MAX6143AESA+ trades higher quiescent current for significantly improved temperature stability and noise - making it suitable for calibration labs but less ideal for battery-powered field instruments.
Availability
REF01CESA+T is available at Aetrix Electronics and suitable for precision calibration standards, digital voltmeters, and industrial sensor signal chains requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for REF01CESA+T 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 and mixed-signal ICs for industrial, communications, and computing applications.
The REF01 family was engineered for metrology-grade voltage referencing in environments demanding long-term stability, wide temperature tolerance, and minimal drift - targeting test equipment, process control, and high-accuracy data acquisition.
FAQ
What is the maximum input voltage rating for REF01CESA+T?
The absolute maximum input voltage for REF01CESA+T is 40V. However, the recommended operating range is 13V to 33V per the datasheet's electrical characteristics table. Exceeding 33V may degrade long-term stability or increase self-heating beyond specified limits, even if within absolute max ratings. Always maintain VIN within 13V–33V for guaranteed REF01CESA+T performance across –40°C to +85°C.
Does REF01CESA+T include a temperature output pin like REF02?
No, REF01CESA+T does not have a temperature output pin. Pin 3 is designated N.C. (No Connection), unlike REF02 variants which use pin 3 as a TEMP output with 2.1mV/°C slope. The REF01CESA+T is strictly a 10V reference device with TRIM, VOUT, VIN, and GND functionality - all other pins are internally unconnected. This simplifies layout for pure reference applications without thermal sensing needs.
Can REF01CESA+T be used to generate a 10.240V reference for binary-scaled ADCs?
Yes, REF01CESA+T supports precise 10.240V output generation using its TRIM pin. With a 10kΩ potentiometer connected between TRIM and GND, the output can be adjusted ±6% (±600mV) around 10.00V. Setting the trim to +2.4% yields 10.240V, and the datasheet confirms that such adjustment introduces only ~0.7ppm/°C additional tempco per 100mV - preserving REF01CESA+T's stability for high-resolution ADC applications.
What is the short-circuit behavior of REF01CESA+T?
REF01CESA+T is short-circuit protected and rated for indefinite output short duration to either GND or VIN. Internal current limiting prevents damage during fault conditions, and output voltage recovers fully after short removal without parameter shift. This feature enables robust operation in systems prone to wiring faults or connector mismates, ensuring REF01CESA+T remains functional and specification-compliant after transient shorts.
Is REF01CESA+T RoHS compliant and lead-free?
Yes, REF01CESA+T is RoHS compliant and features a lead-free (Pb-free) finish, as indicated by the "+" suffix in the part number per Maxim's ordering nomenclature. The SO-8 package uses matte tin plating over copper leadframe, qualified to JEDEC J-STD-020 moisture sensitivity level 3 (MSL3), and compatible with standard reflow profiles including peak temperatures up to 260°C.
REF01CESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- REF01
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
REF01CESA+T FAQ
1.How can I place an order for REF01CESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for REF01CESA+T 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 REF01CESA+T reliable?
The price and inventory of REF01CESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF01CESA+T is usually 5 days.
3.What payment methods are accepted for REF01CESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF01CESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF01CESA+T?
REF01CESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF01CESA+T 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 REF01CESA+T?
For technical support, including REF01CESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF01CESA+T requirements.
6.How does Aetrix verify that REF01CESA+T is sourced from the original manufacturer or authorized distributors?
All REF01CESA+T 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 REF01CESA+T meets industry standards.
7.What is the process for return or replacement of REF01CESA+T?
All REF01CESA+T units undergo pre-shipment inspection (PSI). If there is an issue with REF01CESA+T, 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 REF01CESA+T part is unused and in its original packaging.
Return procedure for REF01CESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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