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Texas Instruments TLE2425CPSR
- Part No.:
- TLE2425CPSR
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLE2425CPSR.pdf
- Description:
- IC VREF GND REF 0.8% 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,842
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Product details
Overview
TLE2425CPSR from Texas Instruments is a precision 2.5-V virtual ground generator IC designed for single-supply 5-V analog signal-conditioning systems. It integrates a micropower voltage reference and high-performance op-amp in one SO (PS) 8-pin package, delivers ±20 mA output current, maintains 2.5 V ±20 mV over 0°C to 70°C, and achieves 7.5 mΩ typical output impedance for low-noise ADC/DAC biasing.
For engineers reviewing the TLE2425CPSR datasheet, TLE2425CPSR pinout, TLE2425CPSR application, or TLE2425CPSR equivalent, this device serves as a drop-in replacement for resistor-divider + buffer solutions-enabling improved dynamic range, reduced distortion, tighter regulation (<±45 µV load change), and simplified layout in data acquisition front ends, portable instrumentation, and mixed-signal sensor interfaces.
Technical Context
The TLE2425CPSR implements a monolithic precision architecture combining a bandgap voltage reference with a unity-gain buffered output stage. Its internal design ensures input regulation of 1.5 µV/V and output regulation of −45 µV (sink) / +15 µV (source) across ±10 mA load steps, enabling stable mid-rail bias under varying signal currents.
It operates from 4 V to 40 V input, draws only 170 µA quiescent current, and features 80 dB ripple rejection at 120 Hz-making it suitable for battery-powered and noise-sensitive applications where rail-splitting must coexist with micropower operation and high PSRR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±20 mV (0°C to 70°C); provides precise mid-rail reference for 5-V systems without external components. |
| Output Impedance | 7.5 mΩ typical; enables fast settling and minimal voltage droop during ±10 mA transients in ADC sampling circuits. |
| Load Regulation | −45 µV (sink) / +15 µV (source) over ±10 mA; supports 12-bit+ accuracy in data acquisition front ends. |
| Input Regulation | 1.5 µV/V typical; rejects supply ripple and line variations, critical for stable bias in noisy environments. |
| Quiescent Current | 170 µA typical; allows use in always-on sensor nodes and portable equipment with multi-year battery life. |
| Output Noise | 100 µVRMS (10 Hz–10 kHz); minimizes added noise floor in precision analog signal chains. |
| Operating Temp | 0°C to 70°C (C-suffix); qualified for commercial-grade industrial and test equipment applications. |
Pinout & Package
Package: SO (PS) - 8-pin small-outline package, 1.75 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1, tape-and-reel (2000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply | Accepts 4 V to 40 V unregulated input; powers internal reference and amplifier. |
| 2 (COMMON) | Ground Reference | System ground connection point; defines 0 V reference for output stage. |
| 3 (OUT) | Virtual Ground Output | Delivers regulated 2.5 V; sinks or sources up to ±20 mA with <100 µs settling to 0.1%. |
| 4–8 (NC) | No Internal Connection | Unused pins; must be left floating or tied to GND per layout best practices-no functional role. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 170 µA typical supply current enables integration into energy-constrained portable instrumentation. |
| Low Output Impedance | 7.5 mΩ typical output impedance ensures minimal voltage shift under dynamic load conditions in sensor signal paths. |
| High PSRR & Ripple Rejection | 80 dB at 120 Hz suppresses power supply noise, preserving SNR in precision analog front ends. |
| Fast Transient Response | 115 µs to 0.1% for ±10 mA current steps with 100 pF load-supports high-speed multiplexed ADC designs. |
| Integrated Macromodel | SPICE-compatible behavioral model included for accurate simulation of stability, settling, and load behavior. |
Applications
| Data Acquisition Front End | Portable Instrumentation |
|---|---|
|
Use Scenario: Biasing differential inputs of 12-bit+ SAR ADCs in single-supply 5-V systems. IC Role / Device Role / Timing Role: Provides stable, low-impedance 2.5-V common-mode voltage for ADC reference and signal centering. Use Value: Eliminates resistor-divider drift and op-amp offset errors, enabling full-scale utilization and >12-bit effective resolution. |
Use Scenario: Generating mid-rail reference for rail-to-rail op-amps in handheld multimeters and sensor loggers. IC Role / Device Role / Timing Role: Acts as active virtual ground to enable true bipolar signal handling from single 5-V battery supply. Use Value: Extends dynamic range by 6 dB compared to passive dividers, while reducing size and component count. |
| Industrial Sensor Interface | Audio Signal Conditioning |
|
Use Scenario: Biasing bridge sensor outputs (e.g., strain gauges, pressure transducers) in PLC analog input modules. IC Role / Device Role / Timing Role: Supplies clean, regulated 2.5-V excitation and reference for instrumentation amplifiers. Use Value: Reduces system gain error to <0.1% and improves temperature stability vs. discrete solutions. |
Use Scenario: Establishing DC bias point for AC-coupled audio op-amps in battery-powered mixers and preamps. IC Role / Device Role / Timing Role: Delivers ultra-low-noise 2.5-V rail-split for dual-supply emulation in single-5-V audio paths. Use Value: Low 100 µVRMS noise and 80 dB ripple rejection preserve audio SNR above 95 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar virtual ground generation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2425IDR | Lower quiescent current (120 µA), wider temp range (−40°C to 85°C), same SOIC-8 package but different pinout (IN/OUT swapped). | Preferred for extended-temp industrial designs; requires PCB layout revision due to non-identical pin mapping. | Select when operating beyond 70°C or when lower IQ is critical; verify pin compatibility before layout reuse. |
| REF3025AIDBZR | 2.5-V precision voltage reference only (no output drive); max 25 mA sink, no source capability, higher output impedance (~1 Ω). | Suitable only when paired with external buffer; adds complexity, board area, and potential stability issues. | Choose only if existing design already uses REF3025 + op-amp; not a direct functional substitute for TLE2425CPSR's integrated drive. |
Compared with TLV2425IDR and REF3025AIDBZR, the TLE2425CPSR uniquely combines reference accuracy, low-Z buffering, and micropower operation in a single SO-8 package-eliminating external components while maintaining 12-bit system accuracy across commercial temperature ranges.
Availability
TLE2425CPSR is available at Aetrix Electronics and suitable for data acquisition systems, portable instrumentation, industrial sensor interfaces, and audio signal conditioning requiring stable component supply and long-term production continuity.
Supply support for TLE2425CPSR 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 leader specializing in analog, embedded processing, and digital signal technologies, with decades of expertise in precision analog ICs and power management solutions.
The TLE2425CPSR belongs to TI's precision rail-splitting product line, engineered specifically to replace passive resistor-divider networks in 5-V analog systems-delivering superior regulation, noise performance, and ease of use for signal-conditioning applications.
FAQ
What is the primary function of the TLE2425CPSR?
The TLE2425CPSR is a precision 2.5-V virtual ground generator that replaces resistor-divider + op-amp circuits in single-supply 5-V analog systems. It provides a stable, low-impedance mid-rail reference capable of sourcing or sinking ±20 mA, enabling accurate biasing for ADCs, DACs, and instrumentation amplifiers without external components.
Does the TLE2425CPSR require external capacitors for stability?
Yes-the TLE2425CPSR requires a minimum 100 pF ceramic capacitor from OUT to COMMON for stable operation under dynamic loads. The datasheet specifies stability within 100 pF to 10 µF; values below 100 pF may cause ringing or oscillation during current transients, especially with capacitive loads like ADC input sampling capacitors.
Can the TLE2425CPSR operate from a 3.3-V supply?
No-the TLE2425CPSR has a minimum input voltage rating of 4 V per its absolute maximum ratings and recommended operating conditions. Operating below 4 V risks improper reference startup, degraded regulation, and potential output collapse; it is not specified or characterized for 3.3-V operation.
How does the TLE2425CPSR compare to using a resistor divider and op-amp?
The TLE2425CPSR integrates a precision voltage reference and unity-gain buffer on one die, delivering better initial accuracy (±20 mV vs. ±50 mV typical for discrete solutions), lower drift (20 ppm/°C), and lower output impedance (7.5 mΩ vs. ≥100 mΩ). It eliminates resistor tolerance errors, thermal tracking mismatches, and op-amp offset contributions-reducing total system error by up to 4× in 12-bit data acquisition.
Is the TLE2425CPSR pin-compatible with other TLE2425 variants like TLE2425CD?
Yes-the TLE2425CPSR shares identical pinout (IN, COMMON, OUT, NC×5) and electrical specifications with all TLE2425 variants in SO-8 packages (e.g., TLE2425CD, TLE2425CDR). The "PS" suffix denotes the same SO package variant as "D", differing only in tape-and-reel packaging (2000 pcs vs. 2500 pcs) and reel dimensions-not functionality or pin assignment.
TLE2425CPSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SO
TLE2425CPSR FAQ
1.How can I place an order for TLE2425CPSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2425CPSR 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 TLE2425CPSR reliable?
The price and inventory of TLE2425CPSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2425CPSR is usually 5 days.
3.What payment methods are accepted for TLE2425CPSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2425CPSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2425CPSR?
TLE2425CPSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2425CPSR 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 TLE2425CPSR?
For technical support, including TLE2425CPSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2425CPSR requirements.
6.How does Aetrix verify that TLE2425CPSR is sourced from the original manufacturer or authorized distributors?
All TLE2425CPSR 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 TLE2425CPSR meets industry standards.
7.What is the process for return or replacement of TLE2425CPSR?
All TLE2425CPSR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2425CPSR, 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 TLE2425CPSR part is unused and in its original packaging.
Return procedure for TLE2425CPSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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