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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Reference

STMicroelectronics TS824ILT-2.5

Name: TS824ILT-2.5
Brand: STMicroelectronics
SKU: TS824ILT-2.5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS824ILT-2.5

Manufacturer:: STMicroelectronics

Category:: Voltage Reference

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: TS824ILT-2.5.pdf

Description:: IC VREF SHUNT 1% SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:1,819

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Product details

Overview

TS824ILT-2.5 from STMicroelectronics is a micropower shunt voltage reference delivering a precise 2.5 V output with ±0.5% initial accuracy at 25°C, 50 ppm/°C max temperature coefficient, 60 µA typical operating current, and stable operation with capacitive loads - used in precision analog front-ends of portable data acquisition systems.

For engineers reviewing the TS824ILT-2.5 datasheet, TS824ILT-2.5 pinout, TS824ILT-2.5 application, or TS824ILT-2.5 equivalent, key selection criteria include low-temperature drift, cathode current sensitivity (ΔV_K/ΔI_K ≤ 1.2 mV), static impedance (<1.2 Ω), long-term stability (120 ppm/1000 hrs), and SOT23-3 package compatibility for space-constrained battery-powered designs.

Technical Context

The TS824ILT-2.5 operates as a two-terminal shunt reference, regulating voltage by sinking adjustable cathode current (I_K = 60 µA to 15 mA) while maintaining tight output tolerance across -40°C to +85°C. Its bandgap-derived core achieves thermal stability via curvature compensation, enabling <50 ppm/°C average TC without external trimming.

It exhibits low dynamic impedance (0.3–1.2 Ω) over full operating current range and delivers wideband noise of 350 nV/√Hz (100 Hz–10 kHz), making it suitable for high-resolution ADC biasing and low-noise sensor excitation where supply rejection is managed externally.

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 references and rail-to-rail op-amp inputs
Temp Coefficient	≤50 ppm/°C - limits total drift to ±1.325% over -40°C to +85°C, critical for uncalibrated field instruments
Min Operating Current	60 µA - supports ultra-low-power wake-up circuits and energy-harvesting sensor nodes
Static Impedance	≤1.2 Ω (I_K = I_KMIN to 1 mA) - ensures minimal load-induced error in high-impedance divider networks
Long-Term Stability	120 ppm after 1000 hrs - reduces calibration frequency in deployed industrial monitoring equipment
Wideband Noise	350 nV/√Hz (100 Hz–10 kHz) - avoids noise floor elevation in 16-bit+ SAR ADC reference paths

Pinout & Package

SOT23-3 plastic micropackage (JEDEC TO-236AB), 2.9 mm × 2.64 mm footprint, 0.95 mm pitch, 0.5 mm nominal height - optimized for automated placement and high-density PCB layouts in handheld instrumentation.

Pin/Terminal	Circuit Role	Design Meaning
Cathode	Current sink node	Connected to regulated voltage node; sets reference point via external resistor to input supply
Anode	Ground reference	Return path for cathode current; must be low-impedance to avoid ground bounce errors
NC	No connection	Internally unconnected; left floating per datasheet - no routing or soldering required

Key Features

Feature	Design Value
Capacitive Load Stability	Stable with any value of capacitive load across full temperature range - eliminates need for series resistance or isolation amplifiers
Low Thermal Hysteresis	≤20 mV shift after thermal cycling (-40°C ↔ +85°C) - preserves calibration integrity in outdoor metering devices
ESD Robustness	2 kV HBM rating - withstands handling in non-ESD-controlled assembly environments without additional protection
Start-up Performance	Sub-µs response with 60 µA cathode current - supports fast wake-up in duty-cycled sensor transmitters

Applications

Portable Multimeter Front-End

Wireless Sensor Node ADC Reference

Use Scenario: Handheld digital multimeter measuring DC voltage with 0.1% accuracy over 0–50°C ambient.

IC Role / Device Role / Timing Role: Shunt reference providing stable 2.5 V reference for 24-bit sigma-delta ADC and auto-ranging attenuator calibration.

Use Value: ±0.5% initial tolerance and 50 ppm/°C TC ensure full-scale error remains <0.2% without factory recalibration.

Use Scenario: Battery-powered soil moisture sensor transmitting data every 15 minutes via LoRaWAN.

IC Role / Device Role / Timing Role: Low-current shunt reference powering ADC and analog sensor conditioning during brief active cycles.

Use Value: 60 µA min operating current extends 2× AA battery life beyond 5 years at 1% duty cycle.

Industrial Loop-Powered Transmitter

Medical Patient Monitor Analog Input

Use Scenario: 4–20 mA loop-powered pressure transmitter operating in hazardous areas with limited power budget.

IC Role / Device Role / Timing Role: Precision voltage reference for current-loop DAC and sensor bridge excitation within 3.3 V supply headroom.

Use Value: Stable performance with capacitive loads simplifies filtering design and avoids oscillation in intrinsically safe barriers.

Use Scenario: Portable ECG monitor requiring low-noise, drift-free analog signal chain for sub-mV biopotential measurement.

IC Role / Device Role / Timing Role: Low-noise (350 nV/√Hz) shunt reference for instrumentation amplifier gain-setting and ADC reference.

Use Value: Minimal wideband noise prevents degradation of SNR in 20-bit medical-grade data acquisition.

Equivalent & Alternatives

The following parts are listed as comparable options for similar shunt voltage reference applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLVH431AILP	2.5 V, ±0.5%, 100 ppm/°C TC, 80 µA min I_K, SOT23-3	Higher temp drift increases total error to ±1.65% over industrial range	Acceptable where cost sensitivity outweighs long-term stability requirements
REF3025AIDBZT	2.5 V, ±0.2%, 50 ppm/°C TC, 35 µA min I_K, SOT23-3, but higher 1/f noise	Lower initial error but 10× higher 0.1–10 Hz noise impacts DC-coupled biosignal chains	Preferred for high-accuracy calibration standards; less suitable for low-frequency sensor interfaces

Compared with TLVH431AILP and REF3025AIDBZT, the TS824ILT-2.5 uniquely balances ultra-low operating current, industry-leading TC, and low wideband noise - making it optimal for battery-operated precision measurement where both power and AC performance constrain alternatives.

Availability

TS824ILT-2.5 is available at Aetrix Electronics and suitable for portable instrumentation, wireless sensor networks, and loop-powered industrial transmitters requiring stable component supply with guaranteed long-term availability.

Supply support for TS824ILT-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-stability voltage referencing in space- and energy-constrained measurement systems.

FAQ

What is the maximum cathode current the TS824ILT-2.5 can safely sink?

The TS824ILT-2.5 supports up to 15 mA cathode current under industrial temperature conditions. At 25°C ambient, power dissipation must remain below 360 mW (SOT23-3 package limit); derating applies above 25°C using P_DMAX = (150°C − T_A) / 340°C/W. Exceeding 15 mA risks thermal runaway or accelerated aging.

Can the TS824ILT-2.5 drive a 10 nF capacitor directly without oscillation?

Yes - the TS824ILT-2.5 is explicitly characterized as stable with "any capacitive load" across -40°C to +85°C, including 10 nF. This is achieved through internal compensation and low output impedance (<1.2 Ω), eliminating need for series resistance or buffer amplifiers in filter or decoupling configurations.

How does the ±0.5% initial tolerance translate to system-level accuracy at 85°C?

At +85°C, total error = ±0.5% (initial) + (50 ppm/°C × 60°C ΔT) = ±0.5% + ±0.3% = ±0.8%. This is confirmed by datasheet electrical characteristics showing ±12.5 mV shift over temperature for the ±0.5% grade - a deterministic, bounded error usable in uncalibrated field deployments.

Is the NC pin on the SOT23-3 package electrically isolated or internally tied?

The NC pin is internally unconnected and electrically isolated - not bonded to die or substrate. STMicroelectronics' mechanical drawing and pin function table confirm it must remain unconnected on PCB layout. Soldering or routing to this pin may cause mechanical stress or unintended coupling and is strictly prohibited.

TS824ILT-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:: ±1%

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

TS824ILT-2.5 FAQ

1.How can I place an order for TS824ILT-2.5 through Aetrix?

Please submit a Request for Quotation (RFQ) for TS824ILT-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 TS824ILT-2.5 reliable?

The price and inventory of TS824ILT-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 TS824ILT-2.5 is usually 5 days.

3.What payment methods are accepted for TS824ILT-2.5?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS824ILT-2.5 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS824ILT-2.5?

TS824ILT-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS824ILT-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 TS824ILT-2.5?

For technical support, including TS824ILT-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS824ILT-2.5 requirements.

6.How does Aetrix verify that TS824ILT-2.5 is sourced from the original manufacturer or authorized distributors?

All TS824ILT-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 TS824ILT-2.5 meets industry standards.

7.What is the process for return or replacement of TS824ILT-2.5?

All TS824ILT-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with TS824ILT-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 TS824ILT-2.5 part is unused and in its original packaging.

Return procedure for TS824ILT-2.5:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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