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Texas Instruments TLC254ID
- Part No.:
- TLC254ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC254ID.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,499
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Product details
Overview
TLC254ID from Texas Instruments is a LinCMOS™ quad operational amplifier optimized for low-power, single-supply operation across 1.4 V to 16 V. It delivers 2-mV max input offset voltage (B-grade), 1 pA typical input bias current, and rail-to-rail common-mode input range extending to the negative rail - enabling precision signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLC254ID datasheet, TLC254ID pinout, TLC254ID application, or TLC254ID equivalent, this device is selected for ultra-low-power analog front-ends where input impedance >1012 Ω, supply voltage flexibility down to 1.4 V, and stable unity-gain performance are critical design requirements.
Technical Context
The TLC254ID uses Texas Instruments' silicon-gate LinCMOS™ process to achieve stable DC parameters with minimal drift: 2 µV/°C offset temperature coefficient and 0.1 µV/month long-term drift. Its architecture supports true single-supply operation with input common-mode range including the negative rail and output swing within 50 mV of rails under light load.
It is characterized for 0°C to 70°C operation and features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.1). The device is not unity-gain compensated for high-speed variants - the TLC254ID variant exhibits 0.43 V/µs slew rate and 525 kHz unity-gain bandwidth at VDD = 5 V with RL = 100 kΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4 V to 16 V - enables direct use with single-cell Li-ion, alkaline, or solar sources without regulation. |
| Input Offset Voltage (Max) | 2 mV at 25°C - B-grade precision suitable for 12-bit ADC front-ends with ≤0.5% gain error budget. |
| Input Bias Current (Typ) | 1 pA - supports high-impedance transducer interfaces (e.g., pH electrodes, piezoresistive sensors) without significant error. |
| Common-Mode Input Range | Includes negative rail (–0.2 V at VDD = 5 V) - allows ground-referenced signal acquisition in single-supply systems. |
| Slew Rate (Typ) | 0.43 V/µs at VDD = 5 V - sufficient for <50 kHz small-signal amplification with <1% distortion. |
| Unity-Gain Bandwidth | 525 kHz at VDD = 5 V - supports active filtering and buffering up to audio-band frequencies. |
| ESD Rating | 2000 V HBM - meets basic handling robustness for industrial assembly environments. |
Pinout & Package
Package: 14-pin SOIC (D package), surface-mount, tape-and-reel compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 12 | Amplifier Inputs (IN+, IN–) | Four independent differential input pairs - each configured for standard op-amp feedback topologies. |
| 2, 4, 6, 13 | Amplifier Outputs (OUT) | Push-pull outputs capable of sourcing/sinking ~1 mA into 10-kΩ loads while maintaining linearity. |
| 7 | VDD– / GND | Ground reference terminal - must be connected directly to system ground plane for noise immunity. |
| 14 | VDD | Positive supply rail - accepts 1.4–16 V; decoupling capacitor (0.1 µF) required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Enables direct interfacing with 0-V referenced sensors (e.g., thermocouples, bridge outputs) without level-shifting circuitry. |
| Ultra-low input bias current (1 pA) | Eliminates significant voltage error across high-value feedback networks (>1 MΩ), preserving gain accuracy. |
| Stable at unity gain | Permits use in voltage followers and active filters without external compensation components. |
| Low 1/f noise corner | 70 nV/√Hz at 1 kHz (low-bias mode) - suitable for DC-coupled precision measurement below 10 Hz. |
| Wide temperature specification | Guaranteed performance from 0°C to 70°C - validated for commercial-grade embedded control and data acquisition. |
Applications
| Portable Gas Sensor Interface | Single-Supply Active Filter |
|---|---|
Use Scenario: Amplifying microamp-level current from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Transimpedance amplifier with 10-MΩ feedback resistor, operating from 3-V supply. Use Value: 1-pA input bias prevents offset shift due to feedback resistor leakage; rail-to-rail input captures full sensor dynamic range. | Use Scenario: 2nd-order low-pass filtering of audio-band signals in battery-operated voice recorders. IC Role / Device Role / Timing Role: Dual-amplifier Sallen-Key topology with unity-gain buffers on input/output. Use Value: 525-kHz GBW ensures phase margin >40° at cutoff; low supply current extends playback time. |
| Medical Pulse Oximeter Front-End | Industrial RTD Signal Conditioning |
Use Scenario: AC-coupled amplification of weak photodiode signals modulated at 1 kHz in wearable health monitors. IC Role / Device Role / Timing Role: Instrumentation-grade preamp stage with synchronous demodulation support. Use Value: 2-mV VIO ensures <0.2% measurement error over 10-bit ADC range; low 1/f noise preserves pulse waveform fidelity. | Use Scenario: Linearization and amplification of 3-wire RTD bridges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision difference amplifier driving 16-bit sigma-delta ADC. Use Value: 0.1 µV/°C offset drift minimizes calibration frequency; CMRR >90 dB rejects common-mode noise from 50/60-Hz mains coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L4CD | Lower supply current (25 µA vs. 420 µA typ), but higher VIO (10 mV max) and slower slew rate (0.03 V/µs). | Better for multi-year battery life in ultra-low-power wake-on-event systems; less suitable for dynamic signal fidelity. | Select when power budget <10 µA per amplifier dominates over DC precision. |
| TLV2464CD | Rail-to-rail I/O, higher slew rate (0.6 V/µs), but higher IB (1 nA) and minimum supply 2.7 V. | Required for full-swing signal chain interfacing with 3.3-V ADCs; incompatible with sub-2.7-V energy harvesting sources. | Select when output swing to both rails and faster settling are mandatory, and supply ≥2.7 V is guaranteed. |
Compared with TLC254ID, TLC27L4CD trades DC precision and speed for extreme low-power operation, while TLV2464CD provides rail-to-rail output and higher bandwidth at the cost of input bias current and minimum supply voltage - making TLC254ID optimal for 1.4–5-V systems requiring balanced precision, speed, and power.
Availability
TLC254ID is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, and industrial analog input modules requiring stable component supply across extended production lifecycles.
Supply support for TLC254ID 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TLC254ID belongs to TI's LinCMOS™ precision op-amp family, engineered for low-voltage, low-power applications where high input impedance, rail-to-rail input capability, and stable DC performance are essential - especially in energy-constrained sensing and signal-conditioning systems.
FAQ
What is the maximum supply voltage rating for the TLC254ID?
The TLC254ID has an absolute maximum supply voltage of 18 V, but its recommended operating range is 1.4 V to 16 V. Operation above 16 V risks parametric degradation or reliability loss, even if within absolute ratings. Always observe derating curves in the dissipation rating table for SOIC packages at elevated ambient temperatures.
Does the TLC254ID support true single-supply operation with inputs at ground potential?
Yes, the TLC254ID supports true single-supply operation: its common-mode input voltage range includes the negative rail (down to –0.2 V at VDD = 5 V), allowing direct connection of inverting/non-inverting inputs to ground or other sub-rail references. This eliminates need for level-shifting circuitry in 0-V referenced sensor interfaces.
What is the typical input bias current of the TLC254ID, and why does it matter in high-impedance circuits?
The TLC254ID exhibits a typical input bias current of 1 pA. In high-impedance circuits - such as transimpedance amplifiers with >1-MΩ feedback resistors or pH probe interfaces - this ultra-low IB prevents significant voltage drop across feedback or source impedances, preserving DC accuracy and minimizing offset drift over time and temperature.
Can the TLC254ID drive capacitive loads without instability, and what is the recommended layout practice?
The TLC254ID is stable with capacitive loads ≤20 pF when using recommended PCB layout: short traces, local 0.1-µF ceramic decoupling at Pin 14 (VDD) and Pin 7 (GND), and ground plane beneath the D-package. For loads >20 pF, isolation resistance (e.g., 10–50 Ω in series with output) is required to maintain phase margin >35° per datasheet Figure 1 test conditions.
How does the TLC254ID's 2-mV max input offset voltage compare to the TLC254ACD and TLC254CD variants?
The TLC254ID is the B-grade variant with 2-mV max VIO at 25°C, tighter than the A-grade (5-mV max) TLC254ACD and standard-grade (10-mV max) TLC254CD. This 2-mV specification enables higher DC accuracy in closed-loop configurations - for example, reducing worst-case gain error to <0.2% in a 1000× non-inverting amplifier with 1% tolerance resistors.
TLC254ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Open Drain
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 340 µV
- Current - Supply:
- 2.7mA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC254ID FAQ
1.How can I place an order for TLC254ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC254ID 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 TLC254ID reliable?
The price and inventory of TLC254ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC254ID is usually 5 days.
3.What payment methods are accepted for TLC254ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC254ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC254ID?
TLC254ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC254ID 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 TLC254ID?
For technical support, including TLC254ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC254ID requirements.
6.How does Aetrix verify that TLC254ID is sourced from the original manufacturer or authorized distributors?
All TLC254ID 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 TLC254ID meets industry standards.
7.What is the process for return or replacement of TLC254ID?
All TLC254ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC254ID, 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 TLC254ID part is unused and in its original packaging.
Return procedure for TLC254ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC254ID Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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