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Texas Instruments TLC2254AID
- Part No.:
- TLC2254AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2254AID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:508
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Product details
Overview
TLC2254AID from Texas Instruments is a quad rail-to-rail output, very low-power operational amplifier optimized for battery-powered and precision analog signal conditioning. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and 850 µV maximum input offset voltage at 25°C - enabling high-accuracy sensor interfacing in single-supply industrial monitoring systems.
For engineers reviewing the TLC2254AID datasheet, TLC2254AID pinout, TLC2254AID application, or TLC2254AID equivalent, key selection criteria include its –40°C to 125°C operating range, rail-to-rail output swing, micropower consumption, low-input-bias-current architecture for high-impedance sources, and compatibility with ADC driver and piezoelectric transducer signal chains.
Technical Context
The TLC2254AID implements Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low quiescent current (35 µA/channel) and high input impedance (>10¹² Ω). Its common-mode input voltage range extends to the negative rail, supporting true single-supply operation down to 2.2 V total supply.
It features fully specified performance across ±2.2 V to ±8 V dual supplies or 4.4 V to 16 V single supply, with guaranteed 850 µV max VIO over temperature (–40°C to 125°C), making it suitable for automotive-grade and extended-temperature industrial applications where offset stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 140 µA typ (all four channels), enabling >1-year battery life in low-duty-cycle remote sensors |
| Input Offset Voltage | 850 µV max at 25°C, ensuring <0.1% gain error in 12-bit precision front-ends |
| Input Bias Current | 1 pA typ, preserving signal integrity when amplifying from >1 GΩ sources like pH electrodes |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz, 4× lower than legacy micropower CMOS op-amps for cleaner small-signal amplification |
| Output Swing | Rail-to-rail (within 10 mV of rails at light load), maximizing dynamic range into 5 V or ±5 V ADCs |
| Common-Mode Range | Includes negative rail (VDD–/GND), allowing direct interface with ground-referenced transducers |
| Operating Temperature | –40°C to +125°C, qualified for under-hood automotive and industrial control environments |
Pinout & Package
The TLC2254AID is housed in a 14-pin plastic DIP (N) package with through-hole mounting and industry-standard pin spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output; rail-to-rail capable, drives loads ≥10 kΩ without significant clipping |
| 2 | IN1– | Inverting input of Amp 1; high-impedance node (10¹² Ω), sensitive to PCB leakage |
| 3 | IN1+ | Non-inverting input of Amp 1; matched to IN1– for optimal CMRR |
| 4 | VDD– / GND | Negative supply or ground reference; must be low-impedance for stable rail-to-rail output |
| 5 | IN2+ | Non-inverting input of Amp 2; electrically isolated from other inputs |
| 6 | IN2– | Inverting input of Amp 2; shares same bias current spec as IN1– |
| 7 | OUT2 | Amplifier 2 output; independent channel, identical specs to OUT1 |
| 8 | OUT3 | Amplifier 3 output; third rail-to-rail channel in quad configuration |
| 9 | IN3– | Inverting input of Amp 3; layout symmetry recommended vs. IN1–/IN2– |
| 10 | IN3+ | Non-inverting input of Amp 3; supports differential or single-ended configurations |
| 11 | VDD+ | Positive supply rail; accepts 4.4 V to 16 V (single) or ±2.2 V to ±8 V (dual) |
| 12 | IN4+ | Non-inverting input of Amp 4; enables 4-channel parallel signal processing |
| 13 | IN4– | Inverting input of Amp 4; full quad independence verified per channel test data |
| 14 | OUT4 | Amplifier 4 output; completes quad functionality with identical AC/DC specs |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 10 mV of VDD+ and VDD–/GND, preserving full ADC input range in 3.3 V or 5 V systems |
| Ultra-low input bias current | 1 pA typical enables accurate amplification of signals from piezoelectric, photodiode, or electrochemical sensors |
| Low-noise architecture | 19 nV/√Hz at 1 kHz reduces integrated noise floor in bandwidth-limited sensor interfaces |
| Extended temperature grade | –40°C to +125°C operation validated per automotive Q100 stress testing protocols |
| Single- and split-supply support | Fully characterized at 5 V and ±5 V, eliminating need for separate design variants |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Environment Monitoring |
|---|---|
Use Scenario: Amplifying low-level outputs from RTD, thermistor, or strain gauge bridges in programmable logic controllers. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with rail-to-rail output driving 12-bit SAR ADCs. Use Value: 850 µV max VIO and 1 pA IIB minimize offset drift and bridge imbalance errors over temperature. | Use Scenario: Signal conditioning for CO₂, humidity, and air quality sensors mounted near HVAC ducts. IC Role / Device Role / Timing Role: Quad-channel analog front-end providing simultaneous conditioning for multiple environmental parameters. Use Value: –40°C to +125°C rating ensures reliable operation in unregulated cabin zones; micropower draw extends ECU battery backup runtime. |
| Portable Medical Vital Sign Sensors | Piezoelectric Transducer Interface |
Use Scenario: Low-power amplification of ECG, pulse oximetry, or respiration signals in handheld diagnostic devices. IC Role / Device Role / Timing Role: First-stage gain block with high input impedance and minimal power dissipation. Use Value: 35 µA/channel supply current enables multi-day operation on coin-cell batteries; rail-to-rail output maximizes SNR into low-voltage ADCs. | Use Scenario: Charge-to-voltage conversion and amplification of mechanical vibration signals from accelerometers or knock sensors. IC Role / Device Role / Timing Role: High-Z buffer and low-noise amplifier for charge-mode transducers requiring minimal loading. Use Value: 1 pA IIB prevents signal decay in high-impedance feedback networks; 19 nV/√Hz noise preserves weak transient detection fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2434ID | Higher drive capability (10 mA short-circuit), wider input voltage range (to VDD– + 0.2 V), but 125 µA/channel supply current | Better suited for driving heavier capacitive loads or higher-current DAC buffers | Select TLV2434ID when output current >5 mA or phase margin under capacitive load is critical |
| OPA2333PAIDR | Zero-drift architecture, 0.02 µV/°C offset drift, 60 µA/channel, but limited to 5.5 V max supply | Superior long-term DC stability for precision weighing or calibration equipment | Choose OPA2333PAIDR only when sub-µV offset drift over time and temperature is mandatory |
Compared with TLV2434ID and OPA2333PAIDR, the TLC2254AID offers the lowest quiescent current (140 µA total) and widest supply range (±8 V), making it optimal for extended-temperature, ultra-low-power sensor nodes where offset drift tolerance exceeds 0.5 µV/°C.
Availability
TLC2254AID is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive cabin environment monitoring, and portable medical vital sign sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2254AID 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 with deep expertise in precision analog design and automotive qualification.
The TLC225x family was engineered specifically for micropower, rail-to-rail output applications in battery-operated and extended-temperature industrial systems - emphasizing low input bias current, low noise, and robust operation across harsh environments.
FAQ
What is the maximum supply voltage for the TLC2254AID?
The TLC2254AID supports a maximum total supply voltage of 16 V in single-supply mode (VDD+ to GND) or ±8 V in split-supply mode (VDD+ to VDD–). Absolute maximum ratings specify ±8 V on each supply rail; exceeding these risks permanent damage. Operation above ±8 V is not characterized or guaranteed.
Does the TLC2254AID support true rail-to-rail input?
No, the TLC2254AID provides rail-to-rail *output* swing but does not feature rail-to-rail *input*. Its common-mode input voltage range extends to the negative rail (VDD–/GND) but stops 1.5 V below the positive rail (VDD+ – 1.5 V) under recommended conditions. This allows ground-sensing capability but excludes direct VDD+-referenced inputs.
What is the guaranteed input offset voltage specification for TLC2254AID over temperature?
The TLC2254AID guarantees a maximum input offset voltage of 850 µV at 25°C and 1000 µV across the full –40°C to +125°C operating range. This tighter VIO spec distinguishes the 'A' grade (TLC2254AID) from the standard TLC2254ID (1500 µV max at 25°C), making it suitable for higher-accuracy applications.
Can the TLC2254AID drive capacitive loads directly?
The TLC2254AID exhibits 63° phase margin with 100 pF capacitive load and 50 kΩ resistive load, indicating stable unity-gain operation under moderate capacitance. However, driving >500 pF directly may cause peaking or oscillation; a series resistor (10–100 Ω) between output and load is recommended for larger capacitive loads to ensure stability.
Is the TLC2254AID pin-compatible with the TLC2254ID?
Yes, the TLC2254AID and TLC2254ID share identical pinout, package (14-pin DIP), and electrical interface. The 'A' suffix denotes enhanced input offset voltage performance (850 µV max vs. 1500 µV max) and extended temperature qualification (–40°C to +125°C for both), with no changes to pin function or layout requirements.
TLC2254AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.12V/µs
- Gain Bandwidth Product:
- 210 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 160µA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2254AID FAQ
1.How can I place an order for TLC2254AID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254AID 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 TLC2254AID reliable?
The price and inventory of TLC2254AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254AID is usually 5 days.
3.What payment methods are accepted for TLC2254AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254AID?
TLC2254AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254AID 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 TLC2254AID?
For technical support, including TLC2254AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254AID requirements.
6.How does Aetrix verify that TLC2254AID is sourced from the original manufacturer or authorized distributors?
All TLC2254AID 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 TLC2254AID meets industry standards.
7.What is the process for return or replacement of TLC2254AID?
All TLC2254AID units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254AID, 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 TLC2254AID part is unused and in its original packaging.
Return procedure for TLC2254AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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