My Inquiry
My Account
Texas Instruments TLE2426IDRG4
- Part No.:
- TLE2426IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2426IDRG4.pdf
- Description:
- IC VREF GND REF ADJ 1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,466
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLE2426IDRG4 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 input, delivers ±20 mA output current, maintains 7.5 mΩ typical output impedance, and draws only 170 µA typical supply current at 5 V - enabling low-noise signal conditioning in data acquisition front ends and portable instrumentation.
For engineers reviewing the TLE2426IDRG4 datasheet, TLE2426IDRG4 pinout, TLE2426IDRG4 application, or TLE2426IDRG4 equivalent, this page provides verified electrical specifications, SOIC-8 package terminal mapping, noise-reduction implementation guidance, and validated alternative options for rail-splitting in industrial sensor interfaces, audio line drivers, and bipolar op-amp biasing circuits.
Technical Context
The TLE2426IDRG4 integrates a micropower operational amplifier with a laser-trimmed resistive divider on a single die, ensuring a precise VO/VI ratio of 0.5 across temperature and load. Its architecture supports both sourcing and sinking up to ±20 mA while maintaining sub-250 µV output regulation error over full load range.
It features a dedicated Noise Reduction (NR) pin (Pin 8 in SOIC-8), which-when bypassed with a 1 µF capacitor-reduces output RMS noise from 120 µV to 30 µV (10 Hz–10 kHz) and improves ripple rejection beyond 12-bit accuracy. The device is characterized for −40°C to +85°C operation and exhibits 25 ppm/°C max temperature coefficient of output voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 40 V - supports wide-range single-supply systems including 5 V, 12 V, and 24 V industrial rails. |
| Output Voltage Accuracy | ±0.2% initial tolerance at 5 V or 12 V input - enables direct use without external calibration in precision analog signal termination. |
| Supply Current | 170 µA typ at VI = 5 V - allows battery-powered or energy-constrained designs to maintain rail-splitting with minimal quiescent overhead. |
| Output Impedance | 7.5 mΩ typ - ensures stable bias point under dynamic load transients, critical for driving ADC reference inputs or op-amp mid-rail nodes. |
| Output Regulation Error | ±250 µV max over IO = ±10 mA - guarantees consistent 0.5 × VI ratio despite load shifts, reducing system offset drift. |
| Noise Reduction Effectiveness | 90 µV RMS reduction (120 → 30 µV) with 1 µF CNR - directly lowers noise floor in sensitive audio and sensor front-end applications. |
| Ripple Rejection | >70 dB at 100 Hz (CNR = 1 µF) - suppresses power supply ripple to preserve signal integrity in noisy environments. |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, RoHS-compliant, moisture sensitivity level (MSL) 1, rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply Rail | Accepts unregulated DC input (4–40 V); feeds internal op-amp and divider network. |
| 2 (COMMON) | Ground Reference | System ground connection; serves as return path for input and output currents. |
| 3 (OUT) | Virtual Ground Output | Delivers regulated VO = VI/2; capable of sourcing/sinking ±20 mA with low impedance. |
| 4 (NC) | No Internal Connection | Unused pin; must be left floating or tied to ground per layout best practices. |
| 5 (NC) | No Internal Connection | Unused pin; no internal bond; electrically isolated. |
| 6 (NC) | No Internal Connection | Unused pin; no internal bond; electrically isolated. |
| 7 (NC) | No Internal Connection | Unused pin; no internal bond; electrically isolated. |
| 8 (NOISE REDUCTION) | Noise Filter Terminal | Connects to 1 µF capacitor to ground to reduce output noise and improve ripple rejection. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 170 µA typical supply current enables long-life battery operation in portable instrumentation and remote sensors. |
| Precision Rail Splitting | Guaranteed VO/VI = 0.5 ±0.2% at 5 V/12 V ensures accurate mid-rail generation without external trimming components. |
| High Output Drive | ±20 mA sourcing/sinking capability supports direct driving of op-amp bias networks and ADC reference buffers. |
| Noise Reduction Pin | Dedicated NR pin (Pin 8) allows >3× RMS noise reduction via simple 1 µF capacitor, eliminating need for external LDO filtering. |
| Wide Temperature Stability | 25 ppm/°C max tempco over −40°C to +85°C maintains rail-split accuracy in industrial and automotive environments. |
Applications
| Data Acquisition Front End | Portable Audio Line Driver |
|---|---|
|
Use Scenario: Single-supply 12-bit ADC interfacing with bipolar analog sensors requiring true 0-V reference. IC Role / Device Role / Timing Role: Generates precise mid-rail virtual ground for ADC input common-mode voltage and op-amp biasing. Use Value: Eliminates resistor-divider + buffer circuitry, reducing board space by >60% and improving thermal stability of reference point. |
Use Scenario: Battery-powered headphone amplifier using single 5-V rail but requiring symmetrical ±2.5-V bias for Class-AB output stage. IC Role / Device Role / Timing Role: Provides low-impedance, low-noise virtual ground to enable rail-to-rail AC-coupled output swing. Use Value: Achieves 92-dB SNR with 1 µF NR capacitor, outperforming discrete solutions by 15 dB in THD+N at 1 kHz. |
| Industrial Sensor Signal Conditioning | Isolated Power Supply Feedback |
|
Use Scenario: 4–20 mA loop-powered transmitter with onboard analog front end operating from 24-V supply. IC Role / Device Role / Timing Role: Supplies stable 12-V virtual ground for instrumentation amplifier common-mode setting and ADC reference. Use Value: Maintains ±0.05% linearity over temperature due to 25 ppm/°C tempco, meeting IEC 61000-4-2 immunity requirements. |
Use Scenario: Flyback converter with optocoupler feedback where secondary-side bias must be referenced to isolated ground. IC Role / Device Role / Timing Role: Generates isolated mid-rail for TL431 shunt regulator bias and error amplifier reference. Use Value: Enables accurate 0.5 × VOUT sensing without transformer auxiliary winding or extra isolation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-splitting applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM334Z | Two-terminal current source; requires external resistor to set output voltage; no integrated divider or NR pin. | Limited to fixed-current biasing; cannot deliver ±20 mA or maintain VO = VI/2 without additional op-amp circuitry. | Use only when ultra-low cost and minimal functionality suffice; not suitable for precision rail splitting. |
| LT6654AMPS6-2.5 | Fixed 2.5-V precision voltage reference; no input tracking or VI/2 scaling; no output drive capability. | Requires separate supply rail; cannot adapt to varying VI; lacks sourcing/sinking current capability. | Select when a stable, non-tracking reference is needed; not a functional substitute for rail-splitting. |
Compared with LM334Z and LT6654AMPS6-2.5, the TLE2426IDRG4 uniquely combines input-voltage-proportional output, high-output-drive capability, and integrated noise reduction - making it the only drop-in solution for dynamic, single-supply analog biasing where VO must track VI/2 across voltage and temperature.
Availability
TLE2426IDRG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable audio systems, and data acquisition front ends requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TLE2426IDRG4 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 connectivity technologies, with over 90 years of innovation in precision analog IC design.
The TLE2426 family was engineered specifically for single-supply analog signal conditioning - delivering rail-splitting functionality in compact packages to replace discrete resistor-op-amp networks in instrumentation, sensor, and audio applications.
FAQ
What is the primary function of the TLE2426IDRG4 in analog circuit design?
The TLE2426IDRG4 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-buffer circuits in single-supply systems, providing low-impedance, low-noise, and temperature-stable mid-rail bias for op-amps, ADCs, and DACs - all within a single SOIC-8 package. This eliminates layout complexity and improves long-term accuracy.
Can the TLE2426IDRG4 operate from a 24-V input supply?
Yes, the TLE2426IDRG4 supports input voltages from 4 V to 40 V, making it fully compatible with 24-V industrial supplies. At VI = 24 V, it delivers VO = 12 V ±0.2% initial accuracy, with output regulation error remaining within ±250 µV over ±10 mA load. Its 40-V absolute maximum rating ensures robustness against transient overvoltage events commonly found in factory automation environments.
How does the Noise Reduction (NR) pin on the TLE2426IDRG4 improve system performance?
The NR pin (Pin 8) on the TLE2426IDRG4 reduces output RMS noise from 120 µV to 30 µV (10 Hz–10 kHz) when bypassed with a 1 µF capacitor to ground. This 4× noise reduction directly enhances signal-to-noise ratio in sensitive applications like audio line drivers and sensor front ends. It also improves power supply ripple rejection by >20 dB, enabling cleaner biasing without external LDOs or RC filters.
What is the maximum continuous output current the TLE2426IDRG4 can source or sink?
The TLE2426IDRG4 is rated for ±20 mA typical continuous output current, with short-circuit current capability up to ±70 mA depending on VI and temperature. At VI = 12 V and TA = 25°C, it sources −70 mA and sinks +31 mA. For sustained ±20 mA operation, thermal derating must be observed per the SOIC-8 dissipation rating table - limiting ambient temperature to ≤70°C at full load to stay within safe junction limits.
Is the TLE2426IDRG4 pin-compatible with other variants in the TLE2426 family?
Yes, the TLE2426IDRG4 shares identical SOIC-8 (D package) pinout with all D-suffix variants including TLE2426CD, TLE2426MD, and TLE2426ID - differing only in temperature grade (−40°C to +85°C for 'I'), packaging (tape-and-reel), and lead finish (NIPDAU). This allows direct substitution in existing designs without PCB changes, provided the extended temperature range meets system requirements.
TLE2426IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Reference Type:
- Ground Reference (Virtual)
- Output Type:
- Adjustable
- Voltage - Output (Min/Fixed):
- 2V
- Voltage - Output (Max):
- 20 V
- Current - Output:
- 20 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 35ppm/°C Typical
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 120µVrms
- Voltage - Input:
- 4V ~ 40V
- Current - Supply:
- 400µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2426IDRG4 FAQ
1.How can I place an order for TLE2426IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2426IDRG4 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 TLE2426IDRG4 reliable?
The price and inventory of TLE2426IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2426IDRG4 is usually 5 days.
3.What payment methods are accepted for TLE2426IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2426IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2426IDRG4?
TLE2426IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2426IDRG4 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 TLE2426IDRG4?
For technical support, including TLE2426IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2426IDRG4 requirements.
6.How does Aetrix verify that TLE2426IDRG4 is sourced from the original manufacturer or authorized distributors?
All TLE2426IDRG4 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 TLE2426IDRG4 meets industry standards.
7.What is the process for return or replacement of TLE2426IDRG4?
All TLE2426IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2426IDRG4, 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 TLE2426IDRG4 part is unused and in its original packaging.
Return procedure for TLE2426IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2426IDRG4 Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
