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Texas Instruments TLE2426MJGB
- Part No.:
- TLE2426MJGB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- -
- Datasheet:
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TLE2426MJGB.pdf
- Description:
- PRECISION VIRTUAL GROUND
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Product details
Overview
TLE2426MJGB from Texas Instruments is a precision rail-splitter IC that generates a stable virtual ground at exactly half the input supply voltage (VO = VI/2) for single-supply analog systems. It operates across 4 V to 40 V, delivers ±20 mA output current, maintains 7.5 mΩ typical output impedance, and draws only 170 µA typical supply current at 5 V - enabling high-accuracy signal termination in data acquisition front ends and portable instrumentation.
For engineers reviewing the TLE2426MJGB datasheet, TLE2426MJGB pinout, TLE2426MJGB application, or TLE2426MJGB equivalent, this page provides verified electrical specifications, military-grade temperature performance (−55°C to +125°C), noise-reduction pin functionality, and real-world design context for analog ground synthesis in isolated or space-constrained systems.
Technical Context
The TLE2426MJGB integrates a micropower operational amplifier with a laser-trimmed resistive divider on a single die, ensuring precise VO/VI = 0.5 ratio independent of load or input voltage variation. Its architecture supports bidirectional current flow (±20 mA) while maintaining sub-250 µV output regulation over full temperature range.
It features a dedicated Noise Reduction (NR) pin (Pin 8 in D/JG/P packages) that, when bypassed with a 1 µF capacitor, reduces output noise from 120 µVrms to 30 µVrms and improves ripple rejection beyond 12-bit accuracy. The JG package used in TLE2426MJGB is a ceramic dual-in-line (CERDIP) variant rated for −55°C to +125°C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Accuracy | ±0.2% initial tolerance at 5 V or 12 V; ±3.6% over full 4–40 V input range - enables direct use without external calibration in mid-rail reference designs. |
| Supply Current | 170 µA typ at VI = 5 V; ≤350 µA max over full temperature range - supports battery-powered and low-power analog signal chains. |
| Output Regulation | ±250 µV max over IO = ±10 mA and full temperature range - ensures stable bias point under dynamic load transients in sensor interfaces. |
| Output Impedance | 7.5 mΩ typ at DC - provides low-Z virtual ground capable of driving 100 pF loads with <275 µs settling to 0.1% after ±10 mA step. |
| Input Voltage Range | 4 V to 40 V continuous - accommodates wide-input industrial supplies, automotive batteries (12 V/24 V), and legacy 5 V/15 V rails. |
| Temperature Range | −55°C to +125°C - qualified for aerospace, defense, and under-hood automotive applications per MIL-PRF-38535. |
| Noise Reduction Pin | Yes (Pin 8); CNR = 1 µF reduces output noise to 30 µVrms and improves ripple rejection - critical for high-resolution ADC/DAC reference stability. |
Pinout & Package
Ceramic Dual-In-Line Package (CERDIP, JG), 8-pin, hermetically sealed, with 0.3-inch row spacing. Pin 1 marked by notch or dot; Pin 8 is Noise Reduction (NR) terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Low-impedance virtual ground node (VO = VI/2); sinks/sourses ±20 mA; connects to analog ground plane or op-amp reference inputs. |
| 2 (COMMON) | Ground Reference | Return path for internal divider and amplifier; must be connected to system power ground (not floating). |
| 3 (IN) | Input Supply | Accepts unregulated DC input (4–40 V); powers internal circuitry and sets output midpoint voltage. |
| 4, 5, 6, 7 | No Internal Connection (NC) | Unused pins; electrically isolated; may be left unconnected or tied to ground for mechanical stability. |
| 8 (NR) | Noise Reduction | Bypass pin for external 1 µF capacitor to reduce output noise and improve line ripple rejection - required for optimal AC performance. |
Key Features
| Feature | Design Value |
|---|---|
| Precision Rail Splitting | Guaranteed VO/VI = 0.5 ±0.2% at 5 V/12 V; laser-trimmed on-die resistor network eliminates external component drift and layout sensitivity. |
| Military Temperature Rating | Qualified from −55°C to +125°C (M-suffix); meets MIL-PRF-38535 requirements for reliability in harsh environments. |
| Low Output Impedance | 7.5 mΩ typical output resistance enables direct drive of op-amp inputs, ADC references, and small-signal filters without buffering. |
| Noise Reduction Architecture | Dedicated NR pin with 110 kΩ internal impedance allows >70 dB ripple rejection and 30 µVrms noise floor when bypassed with 1 µF. |
| Micropower Operation | 170 µA typical supply current at 5 V enables integration into always-on sensor nodes and portable test equipment with minimal quiescent impact. |
Applications
| Portable Data Acquisition Systems | Isolated Sensor Signal Conditioning |
|---|---|
Use Scenario: Battery-powered handheld DMMs and oscilloscope probes requiring accurate mid-rail bias for single-supply op-amps and ADC drivers. IC Role / Device Role / Timing Role: Generates stable 2.5 V or 6 V virtual ground from 5 V or 12 V battery input, replacing resistor-divider + op-amp discrete solutions. Use Value: Eliminates 3–5 discrete components, reduces board area by >70%, and improves long-term drift performance via on-chip trimming. |
Use Scenario: Industrial pressure/temperature sensors with galvanically isolated analog outputs needing clean, low-noise reference for signal amplification. IC Role / Device Role / Timing Role: Provides isolated mid-rail reference for instrumentation amplifiers in non-ground-referenced signal paths. Use Value: Enables true differential signaling with <30 µVrms noise floor and >12-bit effective resolution despite shared supply rails. |
| Automotive Body Control Modules | Aerospace Avionics Power Interfaces |
Use Scenario: 12 V vehicle systems where microcontrollers and analog sensors share a common rail but require separate analog ground domains. IC Role / Device Role / Timing Role: Supplies regulated virtual ground for CAN transceiver biasing, LIN bus level-shifting, and analog sensor ADC references. Use Value: Maintains ±250 µV regulation over −40°C to +125°C ambient, supporting AEC-Q100-compliant designs without thermal derating. |
Use Scenario: Flight control computers and inertial measurement units requiring radiation-tolerant, high-reliability rail splitting under extreme thermal cycling. IC Role / Device Role / Timing Role: Delivers MIL-STD-883-qualified virtual ground for analog front-end conditioning in FPGAs and mixed-signal ASICs. Use Value: Ceramic JG package ensures hermetic sealing and zero moisture ingress; M-suffix guarantees operation across full −55°C to +125°C range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-splitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM334Z | Adjustable current source (not rail splitter); requires external resistors to generate VI/2; no integrated amplifier or NR pin. | Limited to low-current bias generation (<1 mA); unsuitable for ±20 mA load or noise-sensitive ADC references. | Select only if ultra-low-cost, low-current bias is sufficient and board space permits external feedback network. |
| LT1964ES5-2.5 | Fixed 2.5 V LDO regulator; not ratiometric to input; cannot track VI/2 across 4–40 V range. | Only usable where input is fixed (e.g., 5 V), not variable or wide-range; lacks sink capability and noise reduction. | Choose only for fixed-voltage reference needs; not a functional substitute for rail splitting in single-supply analog systems. |
Compared with LM334Z and LT1964ES5-2.5, the TLE2426MJGB uniquely delivers true ratiometric VI/2 output with bidirectional current drive, integrated noise reduction, and military-grade temperature performance - making it irreplaceable for precision analog ground synthesis in demanding embedded systems.
Availability
TLE2426MJGB is available at Aetrix Electronics and suitable for portable instrumentation, aerospace avionics, and automotive body control modules requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TLE2426MJGB 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 high-reliability components.
The TLE2426 family was designed specifically for precision analog rail splitting in single-supply systems - targeting data acquisition, sensor signal conditioning, and military/aerospace power interface applications where discrete solutions fail to meet size, drift, or noise requirements.
FAQ
What is the primary function of the TLE2426MJGB in analog circuit design?
The TLE2426MJGB functions as a precision rail splitter, generating a stable virtual ground at exactly half the input supply voltage (VO = VI/2). It replaces discrete resistor-divider-and-op-amp circuits in single-supply analog systems, delivering ±20 mA output current, 7.5 mΩ output impedance, and ±0.2% initial accuracy - all critical for biasing op-amps, ADCs, and DACs in portable and high-reliability applications.
Does the TLE2426MJGB require external components to operate?
The TLE2426MJGB operates as a self-contained 3-terminal device (IN, OUT, COMMON) with no external components required for basic rail-splitting functionality. However, the Noise Reduction (NR) pin (Pin 8) must be bypassed with a 1 µF capacitor to achieve specified 30 µVrms noise and enhanced ripple rejection - making the capacitor mandatory for high-fidelity analog applications.
What is the significance of the "JG" package suffix in TLE2426MJGB?
The "JG" suffix denotes a ceramic dual-in-line package (CERDIP), hermetically sealed and qualified for −55°C to +125°C operation. Unlike plastic DIP or SOIC variants, the JG package provides superior moisture resistance, thermal stability, and long-term reliability - essential for aerospace, defense, and under-hood automotive deployments where environmental stress is extreme.
How does the TLE2426MJGB handle output current transients?
The TLE2426MJGB settles to within 0.1% of final value in 275 µs (with 100 pF load) after a ±10 mA output current step, and to 0.01% in 390 µs. Its 7.5 mΩ output impedance and internal compensation ensure stable operation without external capacitors, though a 1 µF NR capacitor is required to maintain low noise during transient events.
Can the TLE2426MJGB be used with input voltages below 4 V or above 40 V?
No - the absolute maximum ratings specify 4 V minimum and 40 V maximum continuous input voltage. Operation outside this range risks permanent damage. The device is characterized and guaranteed only between 4 V and 40 V, with optimal regulation and noise performance observed at 5 V, 12 V, and 24 V nominal inputs.
TLE2426MJGB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- -
- Output Type:
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Tolerance:
- -
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
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- -
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TLE2426MJGB FAQ
1.How can I place an order for TLE2426MJGB through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2426MJGB 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 TLE2426MJGB reliable?
The price and inventory of TLE2426MJGB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2426MJGB is usually 5 days.
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TLE2426MJGB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2426MJGB 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 TLE2426MJGB?
For technical support, including TLE2426MJGB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2426MJGB requirements.
6.How does Aetrix verify that TLE2426MJGB is sourced from the original manufacturer or authorized distributors?
All TLE2426MJGB 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 TLE2426MJGB meets industry standards.
7.What is the process for return or replacement of TLE2426MJGB?
All TLE2426MJGB units undergo pre-shipment inspection (PSI). If there is an issue with TLE2426MJGB, 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 TLE2426MJGB part is unused and in its original packaging.
Return procedure for TLE2426MJGB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2426MJGB Tags
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TL431AIDBZR
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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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