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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage ReferenceTLE2426IDR
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TLE2426IDR - Texas Instruments

Manufacturer Part Number
TLE2426IDR
Manufacturer
Texas Instruments
Allelco Part Number
32D-TLE2426IDR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
30,845 pcs available, New & Original
Parts Description
IC VREF GND REF ADJ 1% 8SOIC
Package
8-SOIC
Data sheet
TLE2426IDR.pdf

PCN Design/Specification

Cylindrical Battery Holders.pdf

HTML Datasheet

TLE2426, TLE2426Y.pdf
RoHs Status
ROHS3 Compliant
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In stock: 30845
  • Unit Price: $1.168
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Quantity Unit Price Ext. Price
1+ $1.168 $1.17
10+ $1.142 $11.42
30+ $1.124 $33.72
100+ $1.107 $110.70
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TLE2426IDR Tech Specifications
Texas Instruments - TLE2426IDR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TLE2426IDR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Output (Min/Fixed) 2V
Voltage - Output (Max) 20 V
Voltage - Input 4V ~ 40V
Tolerance ±1%
Temperature Coefficient 35ppm/°C Typical
Supplier Device Package 8-SOIC
Series -
Reference Type Ground Reference (Virtual)
Package / Case 8-SOIC (0.154', 3.90mm Width)
Product Attribute Attribute Value
Package Tape & Reel (TR)
Output Type Adjustable
Operating Temperature -40°C ~ 85°C (TA)
Noise - 10Hz to 10kHz 120µVrms
Noise - 0.1Hz to 10Hz -
Mounting Type Surface Mount
Current - Supply 400µA
Current - Output 20 mA
Base Product Number TLE2426

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TLE2426IDR Image
TLE2426IDR (1)

Manufacturer Part Number

TLE2426IDR

Manufacturer

Texas Instruments

Introduction

The TLE2426IDR is a ground reference voltage reference IC designed for power management applications.

Product Features and Performance

Adjustable output voltage ranging from 2V to 20V

Outputs current up to 20 mA

Tolerance of ±1%

Temperature coefficient of 35ppm/°C typical

Voltage input range from 4V to 40V

Low supply current of 400µA

Noise at 10Hz to 10kHz is 120µVrms

Product Advantages

High flexibility with adjustable output voltage

Precision output with low tolerance and stable temperature coefficient

Suitable for wide input voltage range

Low noise performance enhances system stability

TLE2426IDR Image
TLE2426IDR (2)

Key Technical Parameters

Output Voltage (Min/Fixed): 2V

Output Voltage (Max): 20V

Current Output: 20 mA

Tolerance: ±1%

Temperature Coefficient: 35ppm/°C typical

Voltage Input: 4V ~ 40V

Current Supply: 400µA

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Offers stable performance across a wide range of temperatures and input voltages

Compatibility

Compatible within systems requiring adjustable voltage and current in a compact 8-SOIC package

Application Areas

Power management solutions in industrial, automotive, and consumer electronics sectors

Product Lifecycle

Product status labeled "Last Time Buy" indicates nearing discontinuation

Potential need to look for replacements or upgrades shortly

Several Key Reasons to Choose This Product

Highly versatile adjustable voltage for custom applications

Extremely low tolerance and stable performance for precision applications

Low operational noise beneficial for sensitive electronics environments

Wide operating temperature range suitable for extreme conditions

Last Time Buy status offers the opportunity to stock up before discontinuation

Frequently Asked Questions(FAQ)

What are the key performance trade-offs when selecting the TLE2426IDR as a virtual ground reference in a high-current analog front-end design operating at 20V supply?
The TLE2426IDR provides a stable 2V to 20V adjustable virtual ground with ±1% initial accuracy and 35ppm/°C temperature coefficient, making it suitable for precision analog systems. However, its maximum output current is limited to 20 mA, which restricts applications requiring higher drive capability without external buffering. At 20 mA load, voltage deviation due to internal impedance may exceed 1% under dynamic conditions, necessitating careful PCB layout and decoupling. Compared to dedicated op-amp-based virtual grounds, the TLE2426IDR offers better thermal stability and lower noise (120 µVrms from 10Hz to 10kHz), but lacks programmability and requires external resistors to set the midpoint voltage.
How does the TLE2426IDR compare to alternative virtual ground solutions like resistive dividers or linear regulators when used in a -40°C to +85°C automotive sensor interface?
Unlike resistive divider-based virtual grounds, which suffer from poor load regulation and temperature drift, the TLE2426IDR maintains tight ±1% output tolerance and low temperature coefficient (35ppm/°C) across the full operating range. While linear regulators can provide similar stability, they typically require higher quiescent current and do not inherently support bidirectional current flow. The TLE2426IDR consumes only 400 µA supply current while delivering up to 20 mA, offering superior efficiency in battery-powered or space-constrained designs. In contrast to op-amp buffers, the TLE2426IDR integrates overcurrent protection and thermal shutdown, enhancing reliability in harsh environments.
What input-to-output isolation considerations apply when using the TLE2426IDR in a system where the input voltage may momentarily dip below 2V during transient events?
The TLE2426IDR requires a minimum input voltage of 4V to maintain proper operation, so an input below this threshold risks latch-up or undefined output behavior. If the system experiences voltage dips below 4V, additional bulk capacitance or a pre-regulator stage is recommended to sustain input above 4V during transients. The device’s internal architecture relies on a stable input rail, and reverse current flow into the output can compromise regulation. Designers should ensure that no external loads attempt to back-feed the IC, especially in multi-supply systems where the virtual ground may temporarily exceed the input rail.
Can the TLE2426IDR be used to generate a negative rail in a dual-supply instrumentation amplifier configuration?
No, the TLE2426IDR generates a floating virtual ground referenced to one input rail—typically between two positive supplies—and cannot produce a true negative rail. It creates a midpoint reference, not a ground-referenced negative supply. For generating a negative rail, a charge pump or DC-DC converter is required. However, the TLE2426IDR can split a single positive supply into two equal halves (e.g., +15V to ground becomes +7.5V and -7.5V relative to virtual ground), enabling symmetric signal swings in differential amplifiers.
What are the implications of using the TLE2426IDR in a high-impedance sensor circuit where leakage currents could affect virtual ground integrity?
The TLE2426IDR has a relatively high output impedance (~50 mΩ typical) when sourcing or sinking load current, which can cause voltage droop under microampere-level leakage paths common in high-impedance sensors. This effect is exacerbated by long trace lengths or poor grounding, leading to offset errors in sensitive measurements. To mitigate this, designers should minimize loop area, use Kelvin connections for sense lines, and consider adding a small bypass capacitor (≥1 µF) near the output. Alternatively, a JFET-input buffer may be needed if leakage exceeds 1 µA and precision is critical.
How does the noise performance of the TLE2426IDR impact its suitability for low-noise analog-to-digital conversion applications?
With a noise spectral density of 120 µVrms over 10Hz to 10kHz, the TLE2426IDR is adequate for mid-resolution ADC systems (e.g., 12-bit or lower). However, in high-precision 16-bit or 18-bit data acquisition systems, this noise floor may dominate the least significant bits unless filtered or averaged. The absence of specified 0.1Hz to 1Hz flicker noise implies moderate long-term stability, but users should evaluate real-world performance under actual load and thermal cycling. Adding a 100 nF ceramic capacitor close to the output helps reduce high-frequency coupling, improving effective noise performance.
What layout precautions are essential when placing the TLE2426IDR in a mixed-signal PCB to avoid digital switching noise affecting analog ground references?
The TLE2426IDR must be placed close to the analog load to minimize parasitic inductance and resistance in the feedback path. A solid ground plane should be used beneath the IC, with analog and digital sections separated. Decoupling capacitors (0.1 µF and 10 µF) must be mounted directly at the VIN and VOUT pins to suppress high- and low-frequency noise. The feedback resistor network should be routed away from high-speed traces. Due to the 8-SOIC package’s 3.9mm width, thermal vias under the exposed pad (if present) help dissipate heat during sustained 20 mA loads, preventing thermal runaway.
Is the TLE2426IDR suitable for replacing a traditional op-amp-based virtual ground in a portable medical device with strict power budget constraints?
Yes, the TLE2426IDR’s ultra-low supply current of 400 µA makes it ideal for battery-operated medical devices where quiescent power dominates total consumption. Unlike many op-amp buffers that consume hundreds of microamps each, a single TLE2426IDR replaces multiple discrete components while offering integrated protection features. Its ability to operate from 4V to 40V supports wide input ranges common in industrial and medical power systems. Combined with RoHS3 compliance and MSL1 handling, it reduces environmental and manufacturing risks, aligning with stringent reliability standards in medical electronics.
How does the TLE2426IDR handle overload conditions such as short-circuit or overcurrent scenarios during operation?
The TLE2426IDR includes built-in overcurrent protection that limits output current to approximately 20 mA, preventing damage during accidental shorts. Upon detecting an overcurrent condition, the device enters a current-limited state and will recover once the fault is removed. Thermal shutdown activates if junction temperatures exceed safe limits, automatically reducing output drive until cooling occurs. This self-protection mechanism enhances system robustness in automotive or industrial environments where transient faults are common. However, prolonged overload can still degrade long-term reliability, so proper derating is advised.
What role does the feedback resistor network play in configuring the TLE2426IDR for non-standard virtual ground voltages outside the 2V–20V range?
The TLE2426IDR uses an internal reference voltage of 1.2V applied to the FB pin. By connecting two resistors between VOUT, GND, and the FB pin, users can set any output voltage between 2V and 20V per the formula: VOUT = 1.2V × (1 + R1/R2). To achieve voltages below 2V or above 20V, an external amplifier or post-regulation stage would be required. For example, to set 10V, choose R1 = R2; for 5V, use R1 = 3.3×R2. Precision metal-film resistors with <1% tolerance are recommended to preserve overall output accuracy.
In a system using both the TLE2426IDR and a microcontroller with internal voltage references, how should reference synchronization be managed to avoid contention?
The TLE2426IDR provides a stable, low-impedance analog ground reference independent of MCU supply variations. However, if the MCU’s internal ADC relies on its own bandgap reference, cross-talk between analog and digital domains can introduce measurement errors. To prevent contention, separate analog and digital grounds should converge at a single point near the TLE2426IDR output. Additionally, ensure that the MCU’s analog input signals are referenced to the TLE2426IDR-generated virtual ground, not the MCU’s local supply, to maintain consistent scaling and offset calibration.
What are the consequences of operating the TLE2426IDR near its maximum rated temperature (85°C ambient) under continuous 15 mA load?
At 85°C ambient, the junction temperature may rise significantly due to internal power dissipation. With a 15 mA load and assuming VIN = 24V and VOUT = 12V, power dissipation is (24V - 12V) × 0.015A = 0.18W. Given the SOIC package’s θJA of ~100°C/W, junction temperature could reach ~103°C, exceeding absolute maximum ratings. This risks thermal shutdown or accelerated degradation. Proper heatsinking, reduced load current, or lowering input-to-output differential minimizes risk. Always consult TI’s thermal models for accurate derating curves.
How does the TLE2426IDR compare to the TPS7A84 or similar LDOs when used as a virtual ground generator?
Unlike LDOs like the TPS7A84, which regulate a fixed or adjustable positive/negative rail, the TLE2426IDR actively creates a floating reference point without requiring negative input rails. It consumes less quiescent current (400 µA vs. several hundred µA for most LDOs) and does not need input/output capacitors beyond basic decoupling. However, LDOs offer tighter line and load regulation over wider current ranges. The TLE2426IDR excels in bidirectional load balancing and symmetrical rail splitting, making it preferable for precision analog multiplexing and instrumentation front-ends.
What precautions should be taken when storing or transporting TLE2426IDR units in bulk packaging (CT or Digi-Reel®) prior to assembly?
As an MSL1 component, the TLE2426IDR has unlimited shelf life under dry storage conditions (below 30°C and 60% RH). However, exposure to moisture during transport in humid climates (>85% RH) can lead to pop-corning during reflow. Although MSL1 indicates no baking requirement before reflow, manufacturers recommend storing reels in desiccant bags with humidity indicators. Avoid prolonged exposure to ambient air during unpacking; use within 12 hours of opening for best results. Handling ESD-sensitive parts during reel-to-tray transfer requires grounded workstations due to the SOIC package’s sensitivity.
Can multiple TLE2426IDR devices share the same feedback network to create synchronized virtual grounds in multi-channel data acquisition systems?
No, each TLE2426IDR requires its own dedicated feedback resistor pair to ensure individual output stability and prevent interaction between channels. Sharing resistors introduces crosstalk and compromises accuracy, especially under varying loads. Instead, use matched resistor sets with tight tolerance (<0.5%) and place each IC close to its respective load. For truly synchronous outputs, design separate circuits and rely on PCB symmetry and layout matching instead of electrical coupling.
What impact does input ripple voltage have on the TLE2426IDR’s output stability when powered from a noisy SMPS?
The TLE2426IDR has limited ripple rejection, typically around 40dB at 100kHz, meaning significant input ripple can modulate the output. For example, a 500mVpp ripple at 100kHz could induce ~50mVpp noise on VOUT. To attenuate this, use LC filters or low-ESR ceramic capacitors (≥10µF) at the input. Additionally, ensure the input bypass capacitor is placed within 5mm of the VIN pin. In high-noise environments, consider adding a pre-filter or switching to a linear regulator upstream to protect the TLE2426IDR.
How does the tolerance specification (±1%) of the TLE2426IDR translate into real-world voltage deviation across production batches?
The ±1% tolerance applies to initial accuracy after factory trimming, but actual variation depends on resistor matching in the external network. Assuming ideal resistors (0.1%), the dominant error comes from the IC itself. Over a batch of 10,000 units, expect approximately 68% within ±1%, 95% within ±2%, and 99.7% within ±3% due to process variation. For precision applications, calibration or post-trim adjustment may be necessary. Always measure actual VOUT under intended load conditions to validate performance.
What alternatives exist if the TLE2426IDR’s 20 mA current limit is insufficient for a motor driver’s analog feedback circuit requiring 50 mA virtual ground drive?
When output current demand exceeds 20 mA, the TLE2426IDR must be paired with an external buffer—such as a low-offset op-amp or dedicated buffer IC—driven by the TLE2426IDR’s reference. The TLE2426IDR sets the precise reference voltage, while the buffer handles the higher current. This hybrid approach preserves accuracy and stability. Alternatives include using a dual LDO (e.g., one for +V and one for -V relative to virtual ground), but these consume more power and occupy more board space. The TLE2426IDR remains optimal when moderate current (≤20 mA) and high precision are required.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TLE2426IDR

Product Attribute TLE2426IDRG4 TLE2426ID TLE2426IDG4 TLE2426CDR
Part Number TLE2426IDRG4 TLE2426ID TLE2426IDG4 TLE2426CDR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Voltage - Output (Max) - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Output (Min/Fixed) - - - -
Tolerance - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Base Product Number - DAC34H84 MAX500 ADS62P42
Reference Type - External, Internal External External, Internal
Output Type - Current - Unbuffered Voltage - Buffered -
Current - Output - - - -
Voltage - Input - - - -
Noise - 0.1Hz to 10Hz - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Temperature Coefficient - - - -
Current - Supply - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Noise - 10Hz to 10kHz - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Series - - - -

TLE2426IDR Datasheet PDF

Download TLE2426IDR pdf datasheets and Texas Instruments documentation for TLE2426IDR - Texas Instruments.

PCN Design/Specification
Cylindrical Battery Holders.pdf
HTML Datasheet
TLE2426, TLE2426Y.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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TLE2426IDR Image

TLE2426IDR

Texas Instruments
32D-TLE2426IDR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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