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Texas Instruments TLE2425MDRG4
- Part No.:
- TLE2425MDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2425MDRG4.pdf
- Description:
- IC VREF GND REF 0.8% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,393
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Product details
Overview
TLE2425MDRG4 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 systems. It functions as a rail-splitting buffer with ±20 mA output current capability, 7.5 mΩ typical output impedance, and 170 µA quiescent current-enabling high-accuracy signal conditioning in data acquisition front ends, ADC/DAC biasing, and sensor interfaces.
For engineers reviewing the TLE2425MDRG4 datasheet, TLE2425MDRG4 pinout, TLE2425MDRG4 application, or TLE2425MDRG4 equivalent, key selection criteria include its −55°C to +125°C operating range, SOIC-8 package with no internal connection on pins 4–7, low 20 ppm/°C temperature coefficient, and verified 12-bit regulation performance across load and line variations.
Technical Context
The TLE2425MDRG4 integrates a precision voltage reference and a high-performance operational amplifier in a monolithic silicon die. Its architecture delivers exceptional input regulation (1.5 µV/V typ) and output regulation (±45 µV over ±10 mA), enabling stable mid-rail generation without external passive components.
It operates from 4 V to 40 V input, supports sink/source operation up to ±20 mA, and maintains low-noise (100 µV rms, 10 Hz–10 kHz) and fast transient response (115 µs to 0.1% for ±10 mA step, CL = 100 pF), making it suitable for dynamic analog signal chains requiring minimal ground error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±20 mV (ensures accurate 12-bit system-level accuracy in 5-V rails) |
| Tempco | 20 ppm/°C (supports stable biasing across −55°C to +125°C industrial/military environments) |
| Quiescent Current | 170 µA typ (enables micropower operation in battery-backed or energy-constrained systems) |
| Output Impedance | 7.5 mΩ typ (minimizes ground shift under dynamic load, critical for multi-channel ADC drivers) |
| Input Regulation | 1.5 µV/V typ (rejects supply ripple and line variation, preserving signal integrity) |
| Load Regulation | ±45 µV over ±10 mA (guarantees consistent virtual ground despite varying analog channel loading) |
| Noise (10 Hz–10 kHz) | 100 µV rms (low enough to avoid degrading ENOB in 14-bit+ data converters) |
Pinout & Package
Package: SOIC-8 (D package), 3.91 mm × 4.90 mm × 1.75 mm height, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Delivers regulated 2.5-V virtual ground; drives ±20 mA into capacitive or resistive loads |
| 2 (COMMON) | Reference Ground | System analog ground reference point; connects to PCB ground plane for noise control |
| 3 (IN) | Power Input | Accepts 4 V to 40 V supply; regulates against input ripple and line variation |
| 4–7 (NC) | No Internal Connection | Unbonded pins; must remain unconnected per TI design-no routing or grounding allowed |
| 8 (NC) | No Internal Connection | Unbonded pin; electrically isolated-no thermal or electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Reference + Op-Amp | Eliminates discrete resistor-divider + op-amp + reference circuits, reducing BOM count and layout area by >70% |
| 12-Bit Regulation Accuracy | Maintains <±0.1% output deviation across full temperature and load range-critical for 12-bit+ DAQ systems |
| Low Output Impedance | 7.5 mΩ enables direct driving of multiple ADC reference inputs or op-amp bias nodes without added buffering |
| Wide Input Range | 4 V to 40 V operation supports legacy 5-V, 12-V, and 24-V industrial rails without external regulators |
| Macromodel Included | SPICE model provided for pre-layout simulation of transient response, stability, and noise coupling in signal chains |
Applications
| Instrumentation Amplifier Biasing | Data Acquisition Front End |
|---|---|
Use Scenario: Providing precise mid-rail bias to instrumentation amplifiers in portable multimeters and sensor transmitters. IC Role / Device Role / Timing Role: Virtual ground generator establishing common-mode voltage for differential input stages. Use Value: Enables full-scale swing of bipolar input signals without clipping, improving dynamic range by ≥3 dB versus resistor-based solutions. | Use Scenario: Supplying reference voltage to SAR ADCs and sigma-delta modulators in PLC analog input modules. IC Role / Device Role / Timing Role: Low-noise, low-impedance analog ground reference for converter reference and bias networks. Use Value: Reduces code-width variation and improves effective number of bits (ENOB) by suppressing ground bounce-induced quantization error. |
| Sensor Signal Conditioning | Industrial DAC Interface |
Use Scenario: Biasing bridge sensors (e.g., strain gauges, pressure transducers) in harsh-environment condition monitoring systems. IC Role / Device Role / Timing Role: Stable excitation and reference node for ratiometric measurement topologies. Use Value: Maintains measurement linearity and repeatability across −55°C to +125°C, meeting MIL-STD-810G thermal cycling requirements. | Use Scenario: Generating symmetric supply rails for dual-output DACs in motor control feedback loops. IC Role / Device Role / Timing Role: Midpoint reference for DAC output amplification and level-shifting circuitry. Use Value: Eliminates DC offset drift in closed-loop position/speed control, reducing steady-state error by up to 0.5% FS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar virtual ground generation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3025AIDBZR | 2.5-V precision shunt reference (20 ppm/°C, 50 µA IQ); requires external op-amp for buffering | Lacks integrated drive capability; unsuitable for >1 mA loads without added components | Select when ultra-low IQ (<50 µA) is mandatory and load current ≤100 µA |
| LM336Z-2.5/NOPB | 2.5-V shunt reference (100 ppm/°C, 10 µA IQ); no output drive, no regulation under load | Cannot source/sink current; only usable with high-impedance buffers or very light loads | Select only for cost-sensitive, non-critical biasing where tempco and regulation are secondary |
Compared with REF3025AIDBZR and LM336Z-2.5/NOPB, the TLE2425MDRG4 uniquely combines reference accuracy, low-noise op-amp buffering, and ±20 mA drive in one SOIC-8 package-reducing bill-of-materials, board space, and design validation effort for demanding analog signal chains.
Availability
TLE2425MDRG4 is available at Aetrix Electronics and suitable for industrial automation, aerospace sensor interfaces, and military-grade data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLE2425MDRG4 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 power management technologies, with decades of heritage in precision analog ICs.
The TLE2425MDRG4 belongs to TI's precision voltage reference and rail-splitting IC product line, engineered specifically for high-accuracy, low-drift virtual ground generation in single-supply analog systems operating across extreme temperatures.
FAQ
What is the operating temperature range of the TLE2425MDRG4?
The TLE2425MDRG4 is rated for −55°C to +125°C free-air operating temperature, confirmed by TI's M-suffix qualification and validated across all electrical parameters in the SLOS065D datasheet. This extended range supports deployment in avionics, downhole oilfield tools, and engine-control modules where ambient conditions exceed commercial or industrial limits.
Does the TLE2425MDRG4 require external capacitors for stability?
Yes-the TLE2425MDRG4 requires a minimum 100 pF ceramic capacitor between OUT and COMMON for stable operation under dynamic load, as specified in Figure 16 of the datasheet. Larger values (up to 1 µF) improve ripple rejection but may increase turn-on time; TI recommends X7R dielectric with ≤2 mm trace length.
Can the TLE2425MDRG4 be used with input voltages below 5 V?
Yes-the TLE2425MDRG4 operates from 4 V to 40 V input, so it functions reliably at 4.5 V (e.g., Li-ion battery systems near end-of-discharge). Output regulation remains within specification, though output current capability scales linearly with headroom above 2.5 V.
What is the significance of the "RG4" suffix in TLE2425MDRG4?
The "RG4" suffix denotes tape-and-reel packaging (2500 units per reel), RoHS-compliant NIPDAU lead finish, and TI's standard green mold compound. It does not indicate functional or parametric differences from TLE2425MD; both share identical electrical specs, SOIC-8 footprint, and −55°C to +125°C rating.
How does the TLE2425MDRG4 compare to resistor-divider solutions in terms of accuracy?
The TLE2425MDRG4 provides ±20 mV initial accuracy and 20 ppm/°C tempco-orders of magnitude better than a 1% resistor divider (±100 mV initial error, >1000 ppm/°C effective tempco). Its active regulation also eliminates load-dependent drift, ensuring consistent 2.5 V even when sinking 20 mA-unachievable with passive networks.
TLE2425MDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2425MDRG4 FAQ
1.How can I place an order for TLE2425MDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2425MDRG4 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 TLE2425MDRG4 reliable?
The price and inventory of TLE2425MDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2425MDRG4 is usually 5 days.
3.What payment methods are accepted for TLE2425MDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2425MDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2425MDRG4?
TLE2425MDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2425MDRG4 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 TLE2425MDRG4?
For technical support, including TLE2425MDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2425MDRG4 requirements.
6.How does Aetrix verify that TLE2425MDRG4 is sourced from the original manufacturer or authorized distributors?
All TLE2425MDRG4 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 TLE2425MDRG4 meets industry standards.
7.What is the process for return or replacement of TLE2425MDRG4?
All TLE2425MDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2425MDRG4, 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 TLE2425MDRG4 part is unused and in its original packaging.
Return procedure for TLE2425MDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2425MDRG4 Tags
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