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Texas Instruments TLE2425CLP
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- Part No.:
- TLE2425CLP
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-226-3, TO-92-3 (TO-226AA)
- Datasheet:
-
TLE2425CLP.pdf
- Description:
- IC VREF GND REF 0.8% TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,648
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Product details
Overview
TLE2425CLP from Texas Instruments is a precision 2.5-V virtual ground generator IC designed for single-supply 5-V analog systems. It integrates a micropower voltage reference and high-performance op-amp in a 3-pin TO-92 package, delivering ±20 mA output current, 7.5 mΩ typical output impedance, and 20 ppm/°C temperature coefficient - enabling accurate signal termination in data acquisition front ends.
For engineers reviewing the TLE2425CLP datasheet, TLE2425CLP pinout, TLE2425CLP application, or TLE2425CLP equivalent, key selection criteria include its 2.5 V ±20 mV output accuracy over 0°C to 70°C, micropower 170 µA quiescent current, low-noise 100 µVRMS performance, and compatibility with ADC/DAC biasing in space-constrained industrial sensor interfaces.
Technical Context
The TLE2425CLP implements a monolithic precision regulator architecture combining a bandgap reference and unity-gain buffer amplifier. Its output regulation is specified at −45 µV (sink) and +15 µV (source) over ±10 mA load variation, with input regulation of 1.5 µV/V across 4–40 V input range.
It operates as a three-terminal active virtual ground node - IN connects to system VCC, COMMON to system GND, and OUT provides the stable 2.5-V reference point. The device achieves 80 dB ripple rejection at 120 Hz and maintains stability with up to 100 pF capacitive load without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±20 mV (ensures 12-bit accuracy in 5-V systems) |
| Quiescent Current | 170 µA typical (enables battery-powered portable instrumentation) |
| Output Impedance | 7.5 mΩ typical (minimizes ground shift under dynamic load) |
| Load Regulation | ±45 µV over ±10 mA (supports precision transducer signal conditioning) |
| Tempco | 20 ppm/°C (maintains ≤0.5 mV drift across 0°C–70°C operating range) |
| Output Noise | 100 µVRMS (10 Hz–10 kHz; preserves SNR in low-level analog circuits) |
| Input Range | 4 V to 40 V (compatible with wide-input industrial power rails) |
Pinout & Package
Package: TO-92 (LP), 3-pin through-hole plastic package, 5.34 mm max height, straight or formed leads, RoHS-compliant tin (Sn) lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (OUT) | Regulated Output | Provides stable 2.5-V virtual ground reference; drives bidirectional ±20 mA loads |
| Pin 2 (COMMON) | System Ground Reference | Connects to PCB ground plane; serves as return path for internal reference and output stage |
| Pin 3 (IN) | Power Input | Accepts unregulated 4–40 V supply; powers internal reference and output buffer |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 170 µA typical supply current enables always-on sensor nodes and energy-harvesting designs |
| Low Output Impedance | 7.5 mΩ typical ensures minimal voltage droop during fast transient loading in multiplexed ADC systems |
| High PSRR | 80 dB ripple rejection at 120 Hz suppresses power supply noise coupling into analog signal paths |
| Wide Input Range | 4 V to 40 V operation supports direct connection to industrial 24-V rails or battery stacks |
| Stability Without Compensation | Operates unconditionally stable with 0–100 pF capacitive loads - eliminates need for external compensation components |
Applications
| Industrial Data Acquisition | Portable Medical Sensors |
|---|---|
Use Scenario: Front-end signal conditioning for 12-bit+ SAR ADCs in PLC analog input modules. IC Role / Device Role / Timing Role: Provides precise 2.5-V mid-rail reference and low-impedance virtual ground for differential sensor amplifiers and ADC drivers. Use Value: Eliminates resistor-divider drift and op-amp offset errors, improving system gain accuracy by >0.02% and reducing calibration frequency. | Use Scenario: Biasing low-power ECG/EEG front-end amplifiers in handheld diagnostic devices. IC Role / Device Role / Timing Role: Generates clean, stable 2.5-V common-mode voltage for rail-to-rail input op-amps powered from single 3.3-V or 5-V battery. Use Value: Enables full-scale input swing without clipping while maintaining <10 µV offset drift over temperature - critical for microvolt-level biopotential signals. |
| Automotive Cabin Sensors | Test & Measurement Equipment |
Use Scenario: Supplying reference voltage for pressure and humidity sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Acts as regulated virtual ground in 5-V single-supply sensor interface circuits exposed to 12-V battery transients. Use Value: Withstands input surges up to 40 V and delivers stable output despite engine cranking dips - improves sensor reliability in harsh environments. | Use Scenario: Precision biasing of DAC output buffers in automated test equipment (ATE) source-measure units. IC Role / Device Role / Timing Role: Supplies low-noise, low-drift 2.5-V reference for dual-supply op-amp stages driving calibrated voltage outputs. Use Value: Reduces output DC error contribution to <±0.005% FS, meeting Class I accuracy requirements for metrology-grade instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar virtual ground generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF200AUE4 | Two-terminal current source (100 µA); requires external resistor to set voltage; no integrated buffer | Limited to low-current biasing (<1 mA); unsuitable for driving ADC references or op-amp inputs directly | Select only when ultra-low quiescent current (<100 µA) is prioritized over drive capability and voltage accuracy |
| LM336Z-2.5/NOPB | Shunt reference (2.5 V); requires external current-limiting resistor; no output drive capability | Cannot sink/source load current; must be paired with discrete op-amp buffer for virtual ground use | Choose only if board space allows separate reference + op-amp solution and cost sensitivity outweighs design simplicity |
Compared with REF200AUE4 and LM336Z-2.5/NOPB, the TLE2425CLP uniquely integrates reference and buffer in one TO-92 package with ±20 mA drive, eliminating external components and layout complexity while delivering superior load regulation and noise performance for true virtual ground implementation.
Availability
TLE2425CLP is available at Aetrix Electronics and suitable for industrial data acquisition, portable medical sensors, and automotive cabin sensor applications requiring stable component supply with long-term lifecycle support.
Supply support for TLE2425CLP 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and digital signal technologies for industrial, automotive, and communications markets.
The TLE2425CLP belongs to TI's precision reference and virtual ground product line, engineered specifically to replace passive resistor networks and discrete op-amp solutions in single-supply analog signal chains where accuracy, low power, and small footprint are critical.
FAQ
What is the maximum continuous input voltage rating for the TLE2425CLP?
The TLE2425CLP has an absolute maximum continuous input voltage rating of 40 V. This allows direct connection to industrial 24-V systems or battery stacks without external regulation. Operation above 40 V risks permanent damage. For reliable long-term use, TI recommends staying within the recommended operating range of 4 V to 40 V, where all specifications - including output accuracy and regulation - are guaranteed.
Can the TLE2425CLP drive a 10-kΩ load while maintaining 2.5 V accuracy?
Yes. With a typical output impedance of 7.5 mΩ and ±20 mA output capability, the TLE2425CLP delivers less than 0.025 mV drop across a 10-kΩ load (I = 250 µA). Its load regulation is specified at ±45 µV over ±10 mA, so a 250 µA load introduces negligible error - well within the ±20 mV total output tolerance. The TLE2425CLP remains fully within spec for this use case.
Does the TLE2425CLP require external capacitors for stability?
No. The TLE2425CLP is internally compensated and operates unconditionally stable with capacitive loads from 0 pF up to 100 pF, as confirmed in the datasheet's Figure 16. No external bypass or compensation capacitors are needed - simplifying layout and reducing BOM count. Adding large output capacitance (>100 pF) may degrade transient response but does not cause oscillation.
How does the TLE2425CLP compare to using a resistor divider for virtual ground generation?
The TLE2425CLP replaces passive resistor dividers by providing active regulation: it maintains 2.5 V ±20 mV over temperature and load, whereas a 1% resistor divider drifts >100 mV across 0°C–70°C and sags under load. Its 170 µA quiescent current is lower than typical divider currents (1–10 mA), and its 7.5 mΩ output impedance prevents ground bounce in dynamic systems - making the TLE2425CLP superior for precision applications.
Is the TLE2425CLP compatible with lead-free reflow soldering processes?
Yes. The TLE2425CLP uses Sn (tin) lead finish and is rated for lead-free assembly. While TO-92 packages do not have an MSL rating (N/A per TI documentation), standard lead-free reflow profiles with peak temperatures up to 260°C are compatible. Follow TI's recommended thermal profile and avoid exceeding 300°C at the lead for >60 seconds, as specified in the absolute maximum ratings table.
TLE2425CLP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Ground Reference (Virtual)
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.8%
- Temperature Coefficient:
- 20ppm/°C Typical
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 100µVrms
- Voltage - Input:
- 4V ~ 40V
- Current - Supply:
- -
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
TLE2425CLP FAQ
1.How can I place an order for TLE2425CLP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2425CLP 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 TLE2425CLP reliable?
The price and inventory of TLE2425CLP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2425CLP is usually 5 days.
3.What payment methods are accepted for TLE2425CLP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2425CLP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2425CLP?
TLE2425CLP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2425CLP 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 TLE2425CLP?
For technical support, including TLE2425CLP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2425CLP requirements.
6.How does Aetrix verify that TLE2425CLP is sourced from the original manufacturer or authorized distributors?
All TLE2425CLP 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 TLE2425CLP meets industry standards.
7.What is the process for return or replacement of TLE2425CLP?
All TLE2425CLP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2425CLP, 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 TLE2425CLP part is unused and in its original packaging.
Return procedure for TLE2425CLP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2425CLP Tags
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TL431AIDBZR
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