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Texas Instruments TLE2425IDR
- Part No.:
- TLE2425IDR
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2425IDR.pdf
- Description:
- IC VREF GND REF 0.8% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,737
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Product details
Overview
TLE2425IDR 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 SOIC-8 package, delivering ±20 mA output current, 7.5 mΩ typical output impedance, and 170 µA quiescent bias current. It enables accurate mid-rail biasing in data acquisition front ends requiring ≥12-bit system accuracy.
For engineers reviewing the TLE2425IDR datasheet, TLE2425IDR pinout, TLE2425IDR application, or TLE2425IDR equivalent, key selection criteria include output regulation stability over temperature (±250 µV full-range), input voltage regulation (≤100 µV/V), low-noise operation (100 µV rms), and compatibility with capacitive loads up to 100 pF without instability.
Technical Context
The TLE2425IDR implements a monolithic precision regulator architecture combining a bandgap-derived 2.5-V reference with a unity-gain buffer amplifier optimized for low-output-impedance drive. Its internal design achieves simultaneous high PSRR (80 dB at 120 Hz) and fast transient response (12 µs to 0.1% on input step, 115 µs to 0.1% on ±10 mA load step).
It operates across −40°C to +85°C (I-suffix rating), supports input voltages from 4 V to 40 V, and maintains output voltage accuracy within ±20 mV over full temperature and load range. The device is internally compensated for stability with 100-pF capacitive loads and exhibits <15 ppm/°C temperature coefficient and 15 ppm long-term drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±20 mV over −40°C to +85°C - ensures stable mid-rail bias for ADC/DAC interfaces in 5-V systems |
| Output Impedance | 7.5 mΩ typ - enables low-distortion driving of dynamic analog loads without external buffering |
| Load Regulation | ±250 µV over ±10 mA - guarantees ≤0.01% gain error in precision instrumentation amplifiers |
| Input Regulation | ≤100 µV/V over 4–40 V - rejects supply ripple and line variations in noisy industrial power rails |
| Quiescent Current | 170 µA typ - supports battery-powered or energy-constrained signal chains without compromising accuracy |
| Output Noise | 100 µV rms (10 Hz–10 kHz) - preserves SNR in high-resolution sensor front ends and audio conditioning |
| Temp Coefficient | 20 ppm/°C - contributes <±0.5 LSB error in 12-bit systems over full operating range |
Pinout & Package
Package: SOIC-8 (D package), 3.91 mm × 4.9 mm, 1.75 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated Output | 2.5-V virtual ground node; low-impedance source/sink capable of ±20 mA |
| 2 (COMMON) | Reference Ground | System analog ground return; must be connected to clean AGND plane |
| 3 (IN) | Power Input | Accepts 4–40 V DC; supplies internal reference and output stage |
| 4–8 (NC) | No Internal Connection | Unbonded pins; electrically isolated and must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Reference + Buffer | Eliminates discrete resistor-divider + op-amp solutions, reducing board area and thermal drift errors |
| 12-Bit System Accuracy | Combined input/load regulation and tempco support ≥12-bit linearity in DAQ front ends |
| Capacitive Load Stability | Stable with up to 100 pF output capacitance - simplifies layout and eliminates external compensation |
| Wide Input Range | Operates from 4 V to 40 V - compatible with unregulated 5-V, 12-V, or 24-V industrial rails |
| Low Thermal Drift | 20 ppm/°C tempco and 15 ppm long-term drift - minimizes calibration frequency in field-deployed equipment |
Applications
| Instrumentation Amplifier Biasing | Data Acquisition Front End |
|---|---|
Use Scenario: Providing precise mid-rail bias to instrumentation amplifiers in portable test equipment. IC Role / Device Role / Timing Role: Virtual ground reference for dual-supply op-amp simulation in single-5-V systems. Use Value: Enables rail-to-rail input common-mode range and improves CMRR by eliminating resistor-divider mismatch errors. | Use Scenario: Establishing stable reference point for 12-bit+ SAR ADCs in environmental monitoring sensors. IC Role / Device Role / Timing Role: Precision analog ground reference for ADC input buffers and PGA stages. Use Value: Reduces system gain error to <±0.01% and supports >70 dB SNR by minimizing reference noise coupling. |
| Isolated Signal Conditioning | Industrial Analog I/O Modules |
Use Scenario: Biasing isolated amplifiers and ADC drivers in galvanically separated PLC analog inputs. IC Role / Device Role / Timing Role: Local 2.5-V reference generation on secondary side of isolation barrier. Use Value: Avoids propagation of primary-side supply noise; maintains accuracy despite ±10% input rail variation. | Use Scenario: Generating stable mid-rail for multi-channel analog output drivers in factory automation modules. IC Role / Device Role / Timing Role: Common-mode voltage reference for voltage/current output stages (e.g., 0–10 V, 4–20 mA). Use Value: Ensures monotonicity and reduces zero-scale drift across temperature and load variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar virtual ground generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2425IDR | Lower quiescent current (120 µA), reduced output current (±10 mA), same SOIC-8 package | Better suited for ultra-low-power battery systems but insufficient for high-current sensor excitation | Select when bias current <150 µA is mandatory and load current stays below ±8 mA |
| REF2025AIDR | Fixed 2.5-V precision reference only (no output buffer); requires external op-amp for drive capability | Higher accuracy (±0.1%) but adds complexity, board space, and thermal drift from discrete buffer | Choose only when absolute initial accuracy >2.5 V ±0.5 mV is required and design can accommodate external amplification |
Compared with TLV2425IDR and REF2025AIDR, the TLE2425IDR uniquely delivers integrated 2.5-V regulation with ±20 mA drive and 7.5-mΩ impedance in a single SOIC-8 footprint-enabling simpler, more robust analog signal chains where both precision and drive strength are critical.
Availability
TLE2425IDR is available at Aetrix Electronics and suitable for instrumentation amplifier biasing, data acquisition front ends, isolated signal conditioning, and industrial analog I/O modules requiring stable component supply across extended temperature ranges.
Supply support for TLE2425IDR 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 over 50 years of innovation in precision analog ICs.
The TLE2425IDR belongs to TI's precision virtual ground generator product line, engineered specifically to replace passive resistor networks and discrete op-amp solutions in single-supply analog signal conditioning systems.
FAQ
What is the operating temperature range for the TLE2425IDR?
The TLE2425IDR is rated for −40°C to +85°C (I-suffix grade), validated across this full range for output voltage accuracy, load regulation, and transient response. Electrical characteristics tables in the datasheet specify performance limits at both extremes, ensuring reliable operation in industrial control and automotive under-hood environments where ambient temperatures fluctuate widely.
Can the TLE2425IDR drive capacitive loads without oscillation?
Yes, the TLE2425IDR is internally compensated for stability with up to 100 pF of capacitive load, as confirmed in Figure 16 of the datasheet. This eliminates the need for external compensation components and supports direct connection to ADC input capacitors, filter networks, or long PCB traces without risk of peaking or ringing in the output response.
How does the TLE2425IDR improve system-level accuracy compared to a resistor divider?
The TLE2425IDR improves system-level accuracy by replacing passive resistor dividers with a monolithic 2.5-V reference and low-impedance buffer. Unlike resistive networks, it avoids resistor tolerance errors, thermal drift mismatch, and load-dependent voltage droop-delivering consistent 2.5 V ±20 mV across temperature and load, which directly enhances linearity in 12-bit+ data acquisition systems.
What is the maximum continuous input voltage the TLE2425IDR supports?
The TLE2425IDR supports a continuous input voltage range of 4 V to 40 V, per its Absolute Maximum Ratings table. This wide range allows use with unregulated 5-V, 12-V, or 24-V industrial power supplies while maintaining regulated 2.5-V output-making it suitable for applications where input rail stability cannot be guaranteed.
Does the TLE2425IDR require external components for basic operation?
No, the TLE2425IDR requires no external components for basic operation: only input (IN), output (OUT), and ground (COMMON) connections are needed. The NC pins (4–8) must remain unconnected. While optional bypass capacitors (e.g., 0.1 µF ceramic near IN) improve high-frequency PSRR, they are not mandatory for functional operation per the datasheet's recommended conditions.
TLE2425IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2425IDR FAQ
1.How can I place an order for TLE2425IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2425IDR 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 TLE2425IDR reliable?
The price and inventory of TLE2425IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2425IDR is usually 5 days.
3.What payment methods are accepted for TLE2425IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2425IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2425IDR?
TLE2425IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2425IDR 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 TLE2425IDR?
For technical support, including TLE2425IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2425IDR requirements.
6.How does Aetrix verify that TLE2425IDR is sourced from the original manufacturer or authorized distributors?
All TLE2425IDR 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 TLE2425IDR meets industry standards.
7.What is the process for return or replacement of TLE2425IDR?
All TLE2425IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2425IDR, 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 TLE2425IDR part is unused and in its original packaging.
Return procedure for TLE2425IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2425IDR Tags
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