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Analog Devices Inc./Maxim Integrated REF01CSA+T
- Part No.:
- REF01CSA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
REF01CSA+T.pdf
- Description:
- IC VREF SERIES 1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,551
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Product details
Overview
REF01CSA+T from Maxim Integrated is a precision 10V voltage reference IC in 8-pin SOIC package, featuring ±100mV initial output error, 65ppm/°C max temperature coefficient, 10mA max load current, and 1.6mA max quiescent current. It delivers stable reference voltage for high-accuracy data conversion and calibration systems operating from 13V to 30V input.
For engineers reviewing the REF01CSA+T datasheet, REF01CSA+T pinout, REF01CSA+T application, or REF01CSA+T equivalent, this page provides verified specifications, SOIC-8 terminal mapping, trim-adjustable 10V operation, thermal stability data across 0°C to +70°C, and validated alternatives for precision analog system design.
Technical Context
The REF01CSA+T implements a bandgap-based reference core with external trim capability via a dedicated TRIM pin, enabling ±6% (±600mV) output adjustment without degrading temperature stability beyond 0.7ppm/°C per 100mV of adjustment. Its single-supply architecture operates from 13V to 30V with no need for negative rails.
It features short-circuit protection, indefinite output short-circuit duration to ground or VIN, and guaranteed performance over 0°C to +70°C. Unlike REF02 variants, REF01CSA+T has no TEMP pin-pin 3 is NC-and does not provide temperature transduction functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.00 V ±100 mV at TA = +25°C - sets absolute accuracy baseline for ADC/DAC full-scale calibration. |
| Tempco (Max) | 65 ppm/°C over 0°C to +70°C - limits drift to ±450 µV across full operating range. |
| Initial Error | ±100 mV - defines worst-case offset before system-level trimming. |
| Load Current | 8 mA (min), 21 mA (max) - supports direct drive of op-amp buffers or moderate-current references. |
| Quiescent Current | 1.6 mA max - enables low-power precision reference use in battery-backed or energy-constrained systems. |
| Input Voltage Range | 13 V to 30 V - compatible with standard +15V supplies and accommodates aging or ripple margins. |
| Output Adjustment | ±6% (±600 mV) via external 10kΩ potentiometer - allows binary-aligned 10.240V setting for 10-bit systems. |
Pinout & Package
REF01CSA+T is housed in an 8-pin Small Outline (SO) package (S8-2), 3.9mm × 4.9mm body, 1.27mm pitch, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Reference Output | 10V precision output node; requires low-ESR bypass capacitor (≥1µF) for noise suppression. |
| 2 (TRIM) | Output Adjustment | Connects to wiper of 10kΩ potentiometer between VOUT and GND to adjust output ±6%. |
| 3 (NC) | No Connection | Internally unconnected; must be left floating or tied to GND (not used for temperature sensing). |
| 4 (GND) | Analog Ground | Primary return path for reference current; separate from power ground in mixed-signal layouts. |
| 5 (VIN) | Positive Supply Input | Accepts 13V–30V DC; internal regulation rejects line ripple up to 0.012%/V. |
| 6 (N.C.) | No Connection | Unused pin; electrically isolated-no routing or soldering required. |
| 7 (N.C.) | No Connection | Unused pin; electrically isolated-no routing or soldering required. |
| 8 (N.C.) | No Connection | Unused pin; electrically isolated-no routing or soldering required. |
Key Features
| Feature | Design Value |
|---|---|
| Pretrimmed 10V output | Guaranteed 9.90V–10.10V at +25°C eliminates need for factory calibration in most applications. |
| Adjustable output range | ±600mV trim range enables system-level error correction and binary-aligned 10.240V configuration. |
| Short-circuit protected | Indefinite short-circuit survival to GND or VIN prevents latch-up or permanent damage during fault conditions. |
| Low-output-noise design | 30 µVP-P (0.1Hz–10Hz) ensures minimal contribution to ADC effective resolution loss. |
| Stable under load variation | 0.015%/mA load regulation maintains accuracy across 0–8mA output current swing. |
Applications
| High-Accuracy Data Acquisition | Precision Calibration Standards |
|---|---|
|
Use Scenario: 16-bit SAR ADC front-end in industrial process monitoring where absolute voltage accuracy determines measurement traceability. IC Role / Device Role / Timing Role: Primary voltage reference establishing full-scale input range for analog signal digitization. Use Value: 65ppm/°C tempco and ±100mV initial error enable <1 LSB error over 0°C–70°C without recalibration. |
Use Scenario: Benchtop digital multimeter requiring NIST-traceable 10.000V output for field verification. IC Role / Device Role / Timing Role: Core reference element in a manually trimmed, thermally stabilized calibration source. Use Value: External TRIM pin allows precise 10.000V setting; SOIC package supports compact, low-drift PCB layout. |
| Programmable Power Supplies | Industrial Sensor Signal Conditioning |
|
Use Scenario: Lab-grade programmable DC supply with digitally adjustable output setpoint referenced to internal DAC. IC Role / Device Role / Timing Role: Stable 10V reference for DAC voltage scaling and feedback loop reference. Use Value: 13V–30V input range matches typical supply rails; ±6% trim supports dynamic range extension for multi-range outputs. |
Use Scenario: Strain-gauge bridge amplifier in load cell interface where excitation voltage stability directly impacts measurement linearity. IC Role / Device Role / Timing Role: Excitation reference for Wheatstone bridge, ensuring ratiometric accuracy independent of supply variation. Use Value: Low 1.6mA quiescent current minimizes self-heating error; 8mA load capability drives typical bridge excitation circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF01HSA+ | Lower tempco (25ppm/°C vs. 65ppm/°C); same SOIC-8 package and pinout. | Suitable for extended industrial environments where tighter thermal drift is required. | Select REF01HSA+ when system-level temperature stability budget demands <300µV drift over 0°C–70°C. |
| MAX6143AESA+ | Higher initial accuracy (±0.1% vs. ±1%), lower noise (12µVP-P), but fixed 10.000V output (no trim pin). | Better for production systems where factory calibration is feasible and trim flexibility is unnecessary. | Choose MAX6143AESA+ for automated test equipment needing guaranteed 10.000V ±10mV without manual adjustment. |
Compared with REF01CSA+T, REF01HSA+ improves thermal stability at higher cost and same footprint, while MAX6143AESA+ trades trim flexibility for tighter initial accuracy and lower noise-making each optimal for distinct calibration strategy priorities.
Availability
REF01CSA+T is available at Aetrix Electronics and suitable for high-accuracy data acquisition, precision calibration standards, and programmable power supplies requiring stable component supply, long-term parametric consistency, and RoHS-compliant packaging.
Supply support for REF01CSA+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) designs precision analog and mixed-signal ICs for industrial, medical, and communications applications, with emphasis on low-noise, high-stability performance.
The REF01 family delivers industry-standard 10V references optimized for calibration-grade accuracy, trim flexibility, and robust single-supply operation in test and measurement hardware.
FAQ
What is the maximum input voltage rating for REF01CSA+T?
The absolute maximum input voltage for REF01CSA+T is 30V DC. Exceeding this value risks permanent damage. The device operates reliably within its specified 13V to 30V input range, with line regulation performance guaranteed at 0.011%/V across that span. REF01CSA+T includes internal protection circuitry but must not be subjected to transient overvoltage beyond 30V, even momentarily.
Does REF01CSA+T support temperature sensing like REF02?
No, REF01CSA+T does not support temperature sensing. Pin 3 is designated NC (No Connection) and is internally unconnected. In contrast, REF02 variants feature a TEMP pin with 2.1mV/°C output. REF01CSA+T is strictly a 10V reference with trim capability-its design excludes any temperature transducer function, and using it for thermal measurement is not supported.
Can REF01CSA+T be used to generate a precise 10.240V reference?
Yes, REF01CSA+T can be adjusted to 10.240V using the TRIM pin and an external 10kΩ potentiometer. Its ±6% output adjustment range covers 9.4V to 10.6V, fully encompassing 10.240V. The datasheet confirms that output adjustment introduces only ~0.7ppm/°C additional tempco per 100mV shift, preserving stability for binary-aligned applications such as 10-bit ADC full-scale calibration.
What is the minimum load current required for REF01CSA+T to maintain regulation?
REF01CSA+T does not require a minimum load current to maintain regulation-it functions correctly with zero load (IL = 0mA). Its output remains stable and within specification down to no-load conditions. However, load regulation is characterized from 0mA to 8mA, and performance degrades beyond 8mA depending on ambient temperature and input voltage. For best accuracy, operate within the 0–8mA range.
Is REF01CSA+T pin-compatible with other REF01 variants in SOIC-8?
Yes, REF01CSA+T is pin-compatible with all REF01 variants in the S8-2 (8-pin SO) package-including REF01HSA+, REF01ESA+, and REF01CESA+. All share identical pinout: VOUT (1), TRIM (2), NC (3), GND (4), VIN (5), and three NC pins (6–8). This allows direct substitution within the same package family when upgrading tempco or temperature range, provided system-level validation confirms suitability.
REF01CSA+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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
REF01CSA+T FAQ
1.How can I place an order for REF01CSA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for REF01CSA+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 REF01CSA+T reliable?
The price and inventory of REF01CSA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF01CSA+T is usually 5 days.
3.What payment methods are accepted for REF01CSA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF01CSA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF01CSA+T?
REF01CSA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF01CSA+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 REF01CSA+T?
For technical support, including REF01CSA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF01CSA+T requirements.
6.How does Aetrix verify that REF01CSA+T is sourced from the original manufacturer or authorized distributors?
All REF01CSA+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 REF01CSA+T meets industry standards.
7.What is the process for return or replacement of REF01CSA+T?
All REF01CSA+T units undergo pre-shipment inspection (PSI). If there is an issue with REF01CSA+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 REF01CSA+T part is unused and in its original packaging.
Return procedure for REF01CSA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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