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Renesas ISL21010CFH333Z-T7A
- Part No.:
- ISL21010CFH333Z-T7A
- Manufacturer:
- Renesas
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ISL21010CFH333Z-T7A.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,634
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Product details
Overview
ISL21010CFH333Z-T7A from Renesas Electronics is a precision micropower bandgap voltage reference delivering 3.3V ±0.2% initial accuracy, 50ppm/°C tempco, and 150mV dropout at 10mA in a 3-lead SOT-23 package. It operates from 3.4V to 5.5V supply and supports up to 25mA output current sourcing, making it suitable for high-accuracy ADC/DAC biasing in battery-powered instrumentation.
For engineers reviewing the ISL21010CFH333Z-T7A datasheet, ISL21010CFH333Z-T7A pinout, ISL21010CFH333Z-T7A application, or ISL21010CFH333Z-T7A equivalent, key selection criteria include low 48µA typical supply current, 95µVP-P (0.1Hz–10Hz) output noise, and guaranteed operation across –40°C to +125°C industrial temperature range.
Technical Context
The ISL21010CFH333Z-T7A uses a bandgap-based reference core with internal trimming for ±0.2% initial accuracy and 50ppm/°C temperature coefficient over –40°C to +125°C. Its low-dropout architecture enables stable 3.3V output regulation even when input falls to 3.4V.
It features active load regulation (45µV/mA sourcing), line regulation (80µV/V over 3.4V–5.5V), and fast 300µs turn-on settling time with 1µF capacitive load - critical for power-up sequencing in portable measurement systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V nominal, ±0.2% initial accuracy at +25°C - ensures minimal calibration burden in 12-bit+ data acquisition systems |
| Supply Current | 48µA typical at +25°C - enables multi-year battery life in always-on sensor nodes |
| Tempco | 50ppm/°C max - maintains ≤±0.83% drift over full –40°C to +125°C range |
| Dropout Voltage | 150mV max at 10mA - allows operation from single-cell Li-ion (3.4V min) or regulated 3.3V rails with margin |
| Noise (0.1–10Hz) | 95µVP-P - supports <16-bit effective resolution in precision analog front-ends |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| Output Current | 25mA sourcing capability - drives multiple op-amp bias networks or SAR ADC references directly |
Pinout & Package
3-lead SOT-23 package (Pb-free, RoHS compliant) with standard footprint and thermal resistance θJA = 275°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage connection | Accepts 3.4V–5.5V supply; must be decoupled with ≥0.1µF ceramic capacitor near pin |
| VOUT | Voltage reference output | Provides stable 3.3V reference; Kelvin sensing supported via separate SENSE path in layout |
| GND | Ground connection | Low-impedance return path; requires dedicated ground plane tie to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 48µA typical supply current enables >10-year battery life in 10µA-average-power IoT sensors |
| Low-noise output | 95µVP-P (0.1–10Hz) supports high-resolution delta-sigma ADCs without external filtering |
| High output drive | 25mA sourcing capacity eliminates need for external buffer in multi-channel reference distribution |
| Wide temperature range | –40°C to +125°C operation validated per AEC-Q200 stress profiles for automotive under-hood use |
| Low dropout | 150mV dropout at 10mA allows direct regulation from 3.6V Li-ion cells down to end-of-discharge |
Applications
| Battery-Powered Data Loggers | Industrial Process Transmitters |
|---|---|
Use Scenario: Continuous 16-bit temperature/humidity logging in remote environmental monitors powered by AA batteries. IC Role / Device Role / Timing Role: Provides stable 3.3V reference for sigma-delta ADC and microcontroller VREF input. Use Value: 48µA quiescent current extends battery life to >5 years; 50ppm/°C tempco ensures <±0.1°C measurement error across operating temperature. | Use Scenario: 4–20mA loop-powered pressure transmitter in oil & gas field instrumentation. IC Role / Device Role / Timing Role: Supplies precision 3.3V reference for DAC generating analog output and internal sensor signal conditioning. Use Value: 25mA sourcing drives DAC reference and op-amp bias networks; 125°C rating supports operation inside hot junction boxes. |
| Portable Medical Glucose Meters | Automotive Cabin Air Quality Sensors |
Use Scenario: Handheld glucose meter using electrochemical test strips requiring accurate baseline voltage for current-to-concentration conversion. IC Role / Device Role / Timing Role: Delivers low-noise 3.3V reference to transimpedance amplifier and 14-bit SAR ADC. Use Value: 95µVP-P noise ensures <0.5% glucose reading error; ±0.2% accuracy eliminates factory recalibration. | Use Scenario: CO₂ and VOC sensor module mounted on HVAC control board inside vehicle cabin (ambient up to 85°C). IC Role / Device Role / Timing Role: References NDIR optical detector signal chain and microcontroller ADC for air quality index calculation. Use Value: –40°C to +125°C rating covers cold-start to summer cabin extremes; 3.4V min input supports operation during cranking dips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6033AESA33+ | 3.3V ±0.15% initial accuracy, 25ppm/°C tempco, 65µA supply current, SO-8 package | Higher accuracy and lower tempco but larger SO-8 footprint and higher quiescent current | Preferred where ultimate stability is required and PCB area permits SO-8; not drop-in due to package and pinout mismatch |
| ADR3433ARJZ-R7 | 3.3V ±0.1% initial accuracy, 10ppm/°C tempco, 120µA supply current, SOT-23-5 package | Superior accuracy and tempco but 2.5× higher supply current and 5-pin SOT-23 requiring layout change | Selected for metrology-grade applications; incompatible pinout prevents direct replacement |
Compared with MAX6033AESA33+ and ADR3433ARJZ-R7, the ISL21010CFH333Z-T7A offers optimal balance of ultra-low power (48µA), industry-standard SOT-23-3 footprint, and sufficient 0.2% accuracy for portable instrumentation - enabling space-constrained designs without sacrificing battery life.
Availability
ISL21010CFH333Z-T7A is available at Aetrix Electronics and suitable for battery management systems, portable medical devices, and industrial process transmitters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ISL21010CFH333Z-T7A 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
Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT markets.
The ISL21010 family was designed specifically for micropower, high-accuracy voltage referencing in space-constrained, battery-operated systems - emphasizing low dropout, low noise, and extended temperature performance.
FAQ
What is the minimum input voltage required for stable operation of the ISL21010CFH333Z-T7A?
The ISL21010CFH333Z-T7A requires a minimum input voltage of 3.4V for stable 3.3V output regulation across its full operating temperature range. This 100mV headroom above nominal output ensures reliable low-dropout operation even at elevated temperatures and maximum load, as verified in the datasheet's recommended operating conditions table.
Does the ISL21010CFH333Z-T7A support Kelvin sensing for improved load regulation?
Yes, the ISL21010CFH333Z-T7A supports Kelvin sensing through its separate VIN and VOUT pins, enabling remote sensing of the reference output at the load to reject PCB trace IR drop. Figure 2 in the datasheet explicitly shows a Kelvin-sensed load configuration, confirming this capability for precision applications demanding <0.01% load regulation error.
What is the output voltage noise specification for the ISL21010CFH333Z-T7A, and how is it measured?
The ISL21010CFH333Z-T7A delivers 95µVP-P output voltage noise over the 0.1Hz to 10Hz bandwidth, as specified in the Electrical Specifications table on page 8 of the FN7896 datasheet. This value is measured under standard conditions: VOUT = 3.3V, IOUT = 0A, TA = +25°C, and represents peak-to-peak noise critical for high-resolution analog measurements.
Can the ISL21010CFH333Z-T7A drive a 10kΩ load while maintaining its accuracy specifications?
Yes, the ISL21010CFH333Z-T7A can drive a 10kΩ load (330µA current) while fully meeting its accuracy specifications. With 25mA maximum sourcing capability and only 45µV/mA load regulation, the resulting 14.85µV shift (0.00045% of 3.3V) is negligible versus the ±0.2% initial accuracy and well within the 50ppm/°C tempco budget.
Is the ISL21010CFH333Z-T7A RoHS compliant and lead-free?
Yes, the ISL21010CFH333Z-T7A is Pb-free and RoHS compliant, as confirmed in the Ordering Information table (page 4) and Absolute Maximum Ratings section (page 5) of the FN7896 datasheet. It uses 100% matte tin plate termination (e3 finish) and meets IPC/JEDEC J-STD-020 reflow requirements for lead-free assembly.
ISL21010CFH333Z-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 25 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- 95µVp-p
- Noise - 10Hz to 10kHz:
- 40µVrms
- Voltage - Input:
- 3.4V ~ 5.5V
- Current - Supply:
- 100µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ISL21010CFH333Z-T7A FAQ
1.How can I place an order for ISL21010CFH333Z-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL21010CFH333Z-T7A 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 ISL21010CFH333Z-T7A reliable?
The price and inventory of ISL21010CFH333Z-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL21010CFH333Z-T7A is usually 5 days.
3.What payment methods are accepted for ISL21010CFH333Z-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL21010CFH333Z-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL21010CFH333Z-T7A?
ISL21010CFH333Z-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL21010CFH333Z-T7A 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 ISL21010CFH333Z-T7A?
For technical support, including ISL21010CFH333Z-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL21010CFH333Z-T7A requirements.
6.How does Aetrix verify that ISL21010CFH333Z-T7A is sourced from the original manufacturer or authorized distributors?
All ISL21010CFH333Z-T7A 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 ISL21010CFH333Z-T7A meets industry standards.
7.What is the process for return or replacement of ISL21010CFH333Z-T7A?
All ISL21010CFH333Z-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL21010CFH333Z-T7A, 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 ISL21010CFH333Z-T7A part is unused and in its original packaging.
Return procedure for ISL21010CFH333Z-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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