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STMicroelectronics TS824AILT-2.5
- Part No.:
- TS824AILT-2.5
- Manufacturer:
- STMicroelectronics
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TS824AILT-2.5.pdf
- Description:
- IC VREF SHUNT 0.5% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,352
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Product details
Overview
TS824AILT-2.5 from STMicroelectronics is a precision 2.5 V shunt voltage reference with ±0.5% initial accuracy at 25°C, 50 ppm/°C max temperature coefficient, 60 µA max operating current, and stable operation with capacitive loads - used in high-resolution ADC biasing and portable instrumentation power rails.
For engineers reviewing the TS824AILT-2.5 datasheet, TS824AILT-2.5 pinout, TS824AILT-2.5 application, or TS824AILT-2.5 equivalent, key selection criteria include low-temperature drift, microamp-level operating current, SOT23-3 footprint compatibility, long-term stability (120 ppm @ 1000 hrs), and load regulation performance across -40°C to +85°C.
Technical Context
The TS824AILT-2.5 implements a bandgap-based shunt topology optimized for low-power, high-stability reference generation without requiring external series resistance for basic operation. Its internal structure delivers <1.2 mV load regulation error over 65 µA–15 mA cathode current and maintains <0.7 Ω static impedance above 1 mA.
Designed for direct replacement of legacy references like TL431 in space-constrained systems, it achieves thermal stability via curvature-compensated bandgap core and laser-trimmed output - enabling accurate voltage setting in battery-powered data acquisition front-ends where supply headroom is limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±0.5% at 25°C - enables direct interface with 2.5 V ADC reference inputs without scaling. |
| Tempco | 50 ppm/°C max - limits total drift to ±1.325% over full industrial range (-40°C to +85°C). |
| Operating Current | 60 µA max at 25°C - supports >10-year battery life in always-on sensor nodes. |
| Load Regulation | ≤1.2 mV change over 65 µA–1 mA cathode current - ensures stable bias under varying load conditions. |
| Long-Term Stability | 120 ppm @ 1000 hrs - reduces calibration frequency in field-deployed instrumentation. |
| Noise (100 Hz–10 kHz) | 350 nV/√Hz - preserves SNR in 16-bit+ data converters without additional filtering. |
| Capacitive Load Stability | Stable with any value - eliminates need for series resistor or compensation network in layout. |
Pinout & Package
TS824AILT-2.5 is housed in a SOT23-3 plastic micropackage (JEDEC TO-236AB), with 3 terminals: Cathode (pin 1), Anode (pin 2), and Reference (pin 3). The package measures 2.90 mm × 1.30 mm × 1.02 mm and supports reflow soldering up to 260°C for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Current sink node | Accepts reverse breakdown current (60 µA–15 mA); connects to regulated rail or ADC REF+. |
| Anode (Pin 2) | Ground reference | Provides low-impedance return path; must be tied directly to system ground plane. |
| Reference (Pin 3) | Output voltage node | Delivers precise 2.5 V; requires minimal trace length to avoid noise coupling in high-precision circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low tempco | 50 ppm/°C max ensures <±1.325% total error across -40°C to +85°C - critical for unheated outdoor sensors. |
| Microamp operation | 60 µA max current enables use in energy-harvesting systems where quiescent power dominates budget. |
| Capacitive load immunity | Stable with any CL - removes design iteration for decoupling caps on ADC reference pins. |
| High precision grade | ±0.5% initial tolerance - eliminates factory trimming in production test for mid-tier instrumentation. |
| Low noise density | 350 nV/√Hz (100 Hz–10 kHz) - avoids SNR degradation in 16-bit SAR ADC applications. |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature/humidity at 1-minute intervals for 5+ years. IC Role / Device Role / Timing Role: Provides stable 2.5 V reference for 16-bit sigma-delta ADC measuring RTD/thermistor bridges. Use Value: 60 µA operating current extends coin-cell lifetime; ±0.5% accuracy avoids recalibration during field deployment. | Use Scenario: 4–20 mA loop-powered pressure transmitters operating in oil & gas refineries. IC Role / Device Role / Timing Role: Sets precision excitation voltage for bridge sensors and reference for DAC-controlled current output stage. Use Value: 50 ppm/°C tempco ensures <0.1% FS error over ambient swings; SOT23-3 fits tight PCB real estate near sensor front-end. |
| Medical Wearables | Energy Metering IC Biasing |
Use Scenario: ECG patch recording analog biopotentials with ultra-low power MCU and flash memory. IC Role / Device Role / Timing Role: Supplies clean 2.5 V reference to 12-bit SAR ADC sampling lead-I signals at 250 SPS. Use Value: 350 nV/√Hz noise prevents baseline wander; capacitive load stability simplifies layout near RF sections. | Use Scenario: Class 0.5 polyphase electricity meters using metrology SoCs (e.g., ADE7953) with integrated ADCs. IC Role / Device Role / Timing Role: External reference for high-accuracy active/reactive energy measurement channels. Use Value: 120 ppm long-term stability meets IEC 62053-21 10-year calibration requirements without field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431BIDBZR | 2.495 V nominal, ±0.5% initial accuracy, 92 ppm/°C max tempco, 70 µA min cathode current | Higher tempco increases drift by ~0.8% over industrial range; requires ≥70 µA to regulate | Choose if existing design uses TL431 footprint and tolerates higher drift; not suitable for <60 µA systems. |
| REF3025AIDBZR | 2.500 V, ±0.2% initial accuracy, 50 ppm/°C max tempco, 50 µA max quiescent current, but series topology | Requires input-to-output headroom; incompatible with shunt-based bias networks | Prefer only when series regulator architecture is already implemented; not drop-in for shunt configurations. |
Compared with TL431BIDBZR and REF3025AIDBZR, TS824AILT-2.5 uniquely combines shunt topology, 60 µA max current, and 50 ppm/°C tempco in SOT23-3 - making it optimal for ultra-low-power, space-constrained shunt reference designs where headroom is insufficient for series regulators.
Availability
TS824AILT-2.5 is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor transmitters, and medical wearables requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for TS824AILT-2.5 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS824 series belongs to ST's precision analog portfolio, engineered specifically for low-power, high-accuracy voltage reference needs in battery-operated and space-constrained instrumentation systems.
FAQ
What is the minimum cathode current required for regulation at -40°C?
The TS824AILT-2.5 requires a minimum cathode current of 65 µA across the full industrial temperature range (-40°C to +85°C), per electrical characteristics table. At -40°C, this ensures stable 2.5 V output within ±0.5% tolerance and prevents dropout due to increased bandgap voltage drift at cold extremes.
Can TS824AILT-2.5 drive a 10 nF capacitor directly without oscillation?
Yes - the datasheet explicitly states "typically stable with any capacitive loads" across -40°C to +85°C. Measured phase margin exceeds 45° even with 100 nF, eliminating need for series resistance or isolation components in ADC reference bypassing applications.
How does long-term stability impact calibration intervals in field instruments?
With 120 ppm drift after 1000 hours of operation, TS824AILT-2.5 contributes <0.012% error growth per 1000 hrs. In a 10-year field instrument, this equates to ~1050 ppm total drift - well within ±0.1% system accuracy targets, enabling multi-year calibration cycles without reference replacement.
Is the SOT23-3 package RoHS-compliant and halogen-free?
Yes - STMicroelectronics confirms the TS824AILT-2.5 SOT23-3 package meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, with lead-free matte tin terminal finish and compliant with JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life.
TS824AILT-2.5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 60 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
TS824AILT-2.5 FAQ
1.How can I place an order for TS824AILT-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for TS824AILT-2.5 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 TS824AILT-2.5 reliable?
The price and inventory of TS824AILT-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS824AILT-2.5 is usually 5 days.
3.What payment methods are accepted for TS824AILT-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS824AILT-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS824AILT-2.5?
TS824AILT-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS824AILT-2.5 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 TS824AILT-2.5?
For technical support, including TS824AILT-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS824AILT-2.5 requirements.
6.How does Aetrix verify that TS824AILT-2.5 is sourced from the original manufacturer or authorized distributors?
All TS824AILT-2.5 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 TS824AILT-2.5 meets industry standards.
7.What is the process for return or replacement of TS824AILT-2.5?
All TS824AILT-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with TS824AILT-2.5, 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 TS824AILT-2.5 part is unused and in its original packaging.
Return procedure for TS824AILT-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS824AILT-2.5 Tags
-
TL431AIDBZR
Texas Instruments
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TL431BQDBZR
Texas Instruments
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AN431AN-ATRG1
Diodes Incorporated
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LM4040CYM3-2.5-TR
Microchip Technology
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LM4040CYM3-4.1-TR
Microchip Technology
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LM4040EIM3-2.5/NOPB
Texas Instruments
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AZ431LBNTR-G1
Diodes Incorporated
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LM4040D20IDBZR
Texas Instruments
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LM4041DIM3-ADJ/NOPB
Texas Instruments
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LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
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