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Texas Instruments TLE2425MJGB
- Part No.:
- TLE2425MJGB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
TLE2425MJGB.pdf
- Description:
- PRECISION VIRTUAL GROUND
- Quantity:
- Payment:
- Shipping:
Inventory:4,080
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Product details
Overview
TLE2425MJGB from Texas Instruments is a precision micropower virtual ground generator IC designed to provide a stable 2.5-V reference midpoint in single-supply 5-V analog signal chains. It integrates a precision voltage reference and high-performance op-amp in one die, delivers ±20 mA output current (sink/source), exhibits 7.5 mΩ typical output impedance, and maintains 12-bit regulation accuracy across −55°C to 125°C - enabling high-fidelity data acquisition front ends.
For engineers reviewing the TLE2425MJGB datasheet, TLE2425MJGB pinout, TLE2425MJGB application, or TLE2425MJGB equivalent, key selection criteria include its ultra-low bias current (170 µA typ), input voltage regulation (1.5 µV/V typ), output voltage stability over temperature (±20 ppm/°C), and compatibility with 100-pF load capacitance without instability.
Technical Context
The TLE2425MJGB implements a monolithic precision regulator architecture combining a bandgap voltage reference and a low-noise, unity-gain-stable operational amplifier. Its internal feedback loop ensures tight output regulation against both load current shifts (±10 mA) and input voltage variations (4 V to 40 V).
It operates as a 3-terminal active virtual ground node: IN accepts the unregulated supply (e.g., 5 V), COMMON connects to system ground, and OUT delivers the regulated 2.5-V reference. No external components are required for basic operation, and it remains stable with up to 100 pF capacitive loading per the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±20 mV (ensures accurate mid-rail biasing for ADC/DAC interfaces) |
| Output Impedance | 7.5 mΩ typ (minimizes signal distortion under dynamic load transients) |
| Bias Current | 170 µA typ (enables micropower system design with <200 µA quiescent draw) |
| Input Regulation | 1.5 µV/V typ (rejects supply ripple and line variation in noisy 5-V rails) |
| Tempco | 20 ppm/°C (supports 12-bit+ accuracy over full −55°C to 125°C range) |
| Short-Circuit Current | ±30 mA min (provides robust fault tolerance without external current limiting) |
| Noise (10 Hz–10 kHz) | 100 µV rms (preserves SNR in precision sensor and audio signal conditioning) |
Pinout & Package
JG package: 8-pin ceramic dual-in-line (DIP), hermetically sealed, rated for −55°C to 125°C operation. Pin 1 marked via notch or dot; pins 4–7 are NC (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated Output | Delivers stable 2.5-V virtual ground; drives loads up to ±20 mA |
| 2 (COMMON) | Reference Ground | System ground return path; must be low-impedance and star-connected |
| 3 (IN) | Supply Input | Accepts 4 V to 40 V unregulated input; powers internal reference and amplifier |
| 4–7 | No Connection | Internally floating; no PCB trace or component connection required |
| 8 | NC (JG package) | Unused terminal; electrically isolated per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Reference + Op-Amp | Eliminates discrete resistor-divider + op-amp + ref circuit, reducing BOM count and layout area by >70% |
| 12-Bit Load/Line Regulation | Maintains <±250 µV error over full operating range - sufficient for 12-bit SAR and sigma-delta ADCs |
| Stability with Capacitive Loads | Remains stable with up to 100 pF at output - supports direct connection to ADC input caps without series resistance |
| Wide Input Range (4–40 V) | Enables use across multiple rail voltages (5 V, 12 V, 24 V) without redesign |
| Hermetic JG Package | Ensures long-term reliability in aerospace, defense, and downhole industrial environments |
Applications
| Instrumentation Amplifier Biasing | Data Acquisition Front End |
|---|---|
Use Scenario: Providing common-mode voltage for instrumentation amplifiers in portable multimeters and sensor signal conditioners. IC Role / Device Role / Timing Role: Supplies precise 2.5-V reference to INA gain stage inputs and ADC reference inputs simultaneously. Use Value: Enables true bipolar input swing on single 5-V supply while maintaining >90 dB CMRR and <0.01% gain error drift. | Use Scenario: Mid-rail reference for 12-bit+ SAR ADCs in environmental monitoring nodes. IC Role / Device Role / Timing Role: Acts as clean, low-impedance virtual ground for ADC analog input and reference buffer. Use Value: Reduces code-width errors by >3 LSB compared to RC-divider solutions; eliminates thermal drift-induced offset. |
| Isolated Sensor Interface | Industrial PLC Analog I/O Module |
Use Scenario: Biasing bridge sensors (e.g., strain gauges) in galvanically isolated current-loop transmitters. IC Role / Device Role / Timing Role: Generates local 2.5-V reference on secondary side of isolation barrier for sensor excitation and signal conditioning. Use Value: Maintains <±0.5 mV drift over temperature - critical for sub-0.1% FSR measurement accuracy. | Use Scenario: Virtual ground for multi-channel 16-bit DAC outputs driving 4–20 mA loops. IC Role / Device Role / Timing Role: Serves as stable 2.5-V sink/source node for DAC output buffers and current-sense amplifiers. Use Value: Enables simultaneous sourcing/sinking of ±15 mA per channel without cross-talk or rail collapse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar virtual ground generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3025AIDBZR | 2.5-V shunt reference (not active virtual ground); requires external op-amp for buffering; max 25 mA sink only | Limited to low-current biasing; cannot source current or drive capacitive loads directly | Select when ultra-low cost and minimal quiescent current (<50 µA) outweigh need for bidirectional drive capability |
| LM336Z-2.5/NOPB | 2.5-V shunt reference with 10 mA max sink; no integrated amplifier; requires external pass transistor for sourcing | Suitable only for static bias points; unstable with >100 pF loads; no short-circuit protection | Choose only for non-critical, low-power, fixed-temperature applications where board space allows discrete buffering |
Compared with REF3025AIDBZR and LM336Z-2.5/NOPB, the TLE2425MJGB uniquely delivers true bidirectional 20-mA drive, integrated stability, and hermetic packaging - making it the sole option for high-reliability, high-dynamic-range virtual ground generation in harsh-environment analog systems.
Availability
TLE2425MJGB is available at Aetrix Electronics and suitable for instrumentation amplifier biasing, data acquisition front ends, isolated sensor interfaces, and industrial PLC analog I/O modules requiring stable component supply across extended temperature ranges.
Supply support for TLE2425MJGB 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 90 years of innovation in precision analog ICs.
The TLE2425 family was engineered specifically for high-accuracy, single-supply analog signal conditioning - targeting applications demanding stable virtual grounds without external passive or active components.
FAQ
What is the primary function of the TLE2425MJGB in an analog signal chain?
The TLE2425MJGB functions as a precision active virtual ground generator, providing a stable, low-impedance 2.5-V reference midpoint for single-supply 5-V analog circuits. Unlike passive dividers, the TLE2425MJGB actively regulates its output to maintain accuracy under varying load and supply conditions - essential for high-fidelity ADC/DAC interfacing and sensor signal conditioning.
Can the TLE2425MJGB operate from a 12-V supply?
Yes, the TLE2425MJGB supports input voltages from 4 V to 40 V per its absolute maximum ratings and recommended operating conditions. When powered from 12 V, it continues delivering a tightly regulated 2.5-V output with unchanged load regulation, input regulation, and noise performance - making it suitable for multi-rail industrial systems.
Does the TLE2425MJGB require external capacitors for stability?
No, the TLE2425MJGB is internally compensated and remains stable with capacitive loads up to 100 pF, as confirmed in Figure 16 of the datasheet. External bypass capacitors are recommended (e.g., 0.1 µF ceramic at IN-to-COMMON) for supply decoupling, but no output capacitor is required for stability - simplifying layout in space-constrained designs.
How does the JG package of the TLE2425MJGB differ from D or LP variants?
The TLE2425MJGB uses a hermetically sealed ceramic JG (8-pin DIP) package rated for −55°C to 125°C operation, offering superior long-term reliability, moisture resistance, and thermal stability versus plastic SOIC (D) or TO-92 (LP) packages. Its pinout matches the D package but with enhanced mechanical robustness for aerospace, defense, and oilfield electronics.
What is the output voltage accuracy of the TLE2425MJGB over temperature?
The TLE2425MJGB guarantees output voltage within 2.47 V to 2.53 V across its full −55°C to 125°C operating range, corresponding to ±12 mV total error. At 25°C, typical output is 2.50 V ±2 mV, and temperature coefficient is 20 ppm/°C - supporting 12-bit system accuracy without calibration in most precision analog applications.
TLE2425MJGB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CDIP
TLE2425MJGB FAQ
1.How can I place an order for TLE2425MJGB through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2425MJGB 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 TLE2425MJGB reliable?
The price and inventory of TLE2425MJGB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2425MJGB is usually 5 days.
3.What payment methods are accepted for TLE2425MJGB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2425MJGB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2425MJGB?
TLE2425MJGB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2425MJGB 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 TLE2425MJGB?
For technical support, including TLE2425MJGB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2425MJGB requirements.
6.How does Aetrix verify that TLE2425MJGB is sourced from the original manufacturer or authorized distributors?
All TLE2425MJGB 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 TLE2425MJGB meets industry standards.
7.What is the process for return or replacement of TLE2425MJGB?
All TLE2425MJGB units undergo pre-shipment inspection (PSI). If there is an issue with TLE2425MJGB, 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 TLE2425MJGB part is unused and in its original packaging.
Return procedure for TLE2425MJGB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2425MJGB Tags
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TL431AIDBZR
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TL431BQDBZR
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AN431AN-ATRG1
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LM4040CYM3-2.5-TR
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LM4040CYM3-4.1-TR
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LM4040EIM3-2.5/NOPB
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AZ431LBNTR-G1
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LM4040D20IDBZR
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LM4041DIM3-ADJ/NOPB
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LM4040DIM3X-2.5/NOPB
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LM4040DIM3-2.5/NOPB
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AZ431LANTR-G1
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