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Texas Instruments TLC2254AQPWRQ1
- Part No.:
- TLC2254AQPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2254AQPWRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,240
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Product details
Overview
TLC2254AQPWRQ1 from Texas Instruments is a quad-channel, rail-to-rail output, automotive-qualified operational amplifier optimized for ultra-low-power, low-noise signal conditioning in battery-powered and high-impedance sensor interfaces. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, 850 µV max input offset voltage (at 25°C), and full rail-to-rail output swing with ±2.2 V to ±8 V dual-supply or 4.4 V to 16 V single-supply operation - enabling direct interfacing with 12-bit ADCs in automotive body control modules.
For engineers reviewing the TLC2254AQPWRQ1 datasheet, TLC2254AQPWRQ1 pinout, TLC2254AQPWRQ1 application, or TLC2254AQPWRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade specifications (−40°C to 125°C), real-world application mappings for piezoelectric sensing and battery monitoring, and two rigorously cross-referenced alternative parts with documented functional trade-offs.
Technical Context
The TLC2254AQPWRQ1 implements an Advanced LinCMOS™ process architecture delivering micropower operation without sacrificing input bias current (1 pA typ) or common-mode input range (extends to negative rail). Its rail-to-rail output stage uses complementary PMOS/NMOS drivers to achieve full-swing capability across temperature and supply variations.
It features fully characterized performance at both 5 V single-supply and ±5 V split-supply conditions, with guaranteed 70 dB CMRR and 80 dB SVR over −40°C to 125°C. The device includes integrated ESD protection exceeding 2000 V (HBM) and 150 V (machine model), meeting automotive reliability requirements per AEC-Q100.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 140 µA typ (25°C, four amplifiers), enabling >10-year battery life in always-on vehicle sensors. |
| Input Offset Voltage | 850 µV max (25°C), ensuring <0.1% gain error in precision 0–5 V sensor front-ends. |
| Input Bias Current | 1 pA typ, critical for stable DC coupling with >1 GΩ source impedances (e.g., piezoelectric transducers). |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz, 4× lower than legacy TLC27L4, improving SNR in audio and vibration sensing. |
| Output Swing | Rail-to-rail (within 10 mV of rails at 50 µA load), eliminating level-shifting circuitry when driving SAR ADCs. |
| Common-Mode Range | Includes negative rail (VDD−), supporting single-supply operation with ground-referenced inputs. |
| Operating Temp | −40°C to +125°C, qualified per AEC-Q100 Grade 1 for under-hood and cabin electronics. |
Pinout & Package
TLC2254AQPWRQ1 is housed in a 14-pin TSSOP (PW) package with 0.65 mm pitch, 5.0 mm × 4.4 mm footprint, and exposed thermal pad (not electrically connected). Pin numbering follows standard JEDEC outline MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to ±50 mA; rail-to-rail swing supports direct ADC interface. |
| 2 | IN−1 | Inverting input of Amp1 - high-impedance node (10¹² Ω); sensitive to PCB leakage and guarding. |
| 3 | IN+1 | Non-inverting input of Amp1 - accepts signals down to VDD−; enables true single-supply instrumentation amps. |
| 4 | VDD+ | Positive supply rail - accepts 4.4 V to 16 V (single) or ±2.2 V to ±8 V (dual); decoupling required. |
| 5 | IN+2 | Non-inverting input of Amp2 - identical electrical characteristics to IN+1; supports matched dual-channel designs. |
| 6 | IN−2 | Inverting input of Amp2 - shares same bias current and noise specs as IN−1; layout symmetry recommended. |
| 7 | OUT2 | Amplifier 2 output - independent channel; no crosstalk specification given, but typical isolation >80 dB. |
| 8 | GND / VDD− | Ground or negative supply - must be low-impedance; serves as reference for all inputs and outputs. |
| 9 | OUT3 | Amplifier 3 output - functionally identical to OUT1/OUT2; enables 3-channel sensor fusion in compact layout. |
| 10 | IN−3 | Inverting input of Amp3 - matches IN−1/IN−2; allows consistent gain-setting resistor networks across channels. |
| 11 | IN+3 | Non-inverting input of Amp3 - extends common-mode range to VDD−; critical for thermocouple cold-junction compensation. |
| 12 | IN+4 | Non-inverting input of Amp4 - enables fourth independent channel; supports multi-axis IMU signal conditioning. |
| 13 | IN−4 | Inverting input of Amp4 - 1 pA bias current ensures minimal error in high-Z pH or gas sensor buffers. |
| 14 | OUT4 | Amplifier 4 output - completes quad configuration; total quiescent power = 140 µA @ 5 V = 0.7 mW. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 10 mV of VDD+ and VDD− at 50 µA load, eliminating need for external level shifters in 3.3 V/5 V systems. |
| Ultra-low input bias current | 1 pA typical enables use with >1 GΩ resistive dividers and piezoelectric elements without signal droop. |
| Automotive qualification | AEC-Q100 Grade 1 certified (−40°C to 125°C), including HTOL, ESD, and board-level reliability testing. |
| Low-noise architecture | 19 nV/√Hz at 1 kHz reduces integrated noise to <1.5 µV RMS in 10 Hz–10 kHz bandwidths for vibration sensing. |
| Single- and split-supply support | Fully specified from 4.4 V to 16 V (single) or ±2.2 V to ±8 V (dual), simplifying design reuse across platforms. |
| ESD robustness | 2000 V HBM and 150 V machine model rating protects against assembly and field handling damage. |
Applications
| Piezoelectric Knock Sensor Interface | Automotive Cabin Temperature Monitoring |
|---|---|
Use Scenario: Signal conditioning for engine knock detection using ceramic piezoelectric transducers mounted on cylinder blocks. IC Role / Device Role / Timing Role: First-stage charge amplifier and buffer, converting high-impedance transducer output to low-Z voltage signal for downstream filtering and digitization. Use Value: 1 pA input bias current prevents signal decay during integration; rail-to-rail output maximizes dynamic range into 12-bit ADCs. |
Use Scenario: Precision analog front-end for NTC thermistor-based cabin temperature measurement in HVAC control units. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer and gain stage for ratiometric thermistor voltage divider outputs. Use Value: 850 µV max VIO ensures <0.02°C offset error at 25°C; 35 µA/channel minimizes self-heating in sealed enclosures. |
| Battery Cell Voltage Monitoring | Occupant Detection System Signal Chain |
Use Scenario: High-impedance voltage sensing of individual Li-ion cells in 12 V automotive battery packs. IC Role / Device Role / Timing Role: Input buffer isolating cell voltage from multiplexer and ADC input, preventing loading errors. Use Value: Common-mode range extending to VDD− allows direct connection to bottom-cell cathode; 140 µA total quiescent current extends pack standby life. |
Use Scenario: Signal amplification for capacitive seat occupancy sensors detecting passenger presence and position. IC Role / Device Role / Timing Role: Transimpedance amplifier converting femtoamp-level displacement currents into measurable voltage. Use Value: 19 nV/√Hz noise floor resolves sub-pF capacitance changes; rail-to-rail output preserves full signal swing for threshold detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2434QDRQ1 | Higher supply current (125 µA/ch), wider input voltage range (up to ±8 V), but higher offset (1500 µV max) and no AEC-Q100 Grade 1 certification. | Acceptable for non-safety-critical cabin modules where offset drift is less constrained. | Select TLV2434QDRQ1 only if higher drive strength (60 mA) or extended input range is required; not drop-in for precision sensor paths. |
| LMV324QDRQ1 | Lower cost, 100 µA/ch supply current, but limited rail-to-rail output (within 80 mV of rails), higher noise (39 nV/√Hz), and 2.5 mV VIO max. | Suitable for basic diagnostics and non-precision actuator feedback loops. | Choose LMV324QDRQ1 for cost-sensitive, non-precision applications where 12-bit ADC resolution is not required. |
Compared with TLC2254AQPWRQ1, TLV2434QDRQ1 offers higher output drive but sacrifices offset accuracy and automotive qualification, while LMV324QDRQ1 reduces cost and power at the expense of noise, offset, and output swing - making TLC2254AQPWRQ1 the optimal choice for precision, low-power, AEC-Q100-compliant sensor interfaces.
Availability
TLC2254AQPWRQ1 is available at Aetrix Electronics and suitable for automotive body control modules, battery management systems, and occupant detection systems requiring stable component supply across long production lifecycles and extreme temperature environments.
Supply support for TLC2254AQPWRQ1 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 and embedded processing technologies, with over 50 years of automotive IC development experience and AEC-Q100-compliant manufacturing.
The TLC225x-Q1 family was designed specifically for automotive signal conditioning applications demanding ultra-low power, rail-to-rail operation, and guaranteed performance across −40°C to 125°C - targeting engine control, chassis, and interior electronics.
FAQ
What is the maximum operating temperature range for the TLC2254AQPWRQ1?
The TLC2254AQPWRQ1 is qualified for continuous operation from −40°C to +125°C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This range is validated across all electrical parameters including input offset voltage, supply current, and output swing - ensuring reliable performance in under-hood and cabin-mounted automotive electronics where thermal stress is critical.
Does the TLC2254AQPWRQ1 support single-supply operation?
Yes, the TLC2254AQPWRQ1 is fully specified for single-supply operation from 4.4 V to 16 V. Its common-mode input voltage range extends to the negative rail (VDD−), and its rail-to-rail output swings within 10 mV of both supply rails - enabling direct interfacing with microcontrollers and ADCs in 5 V or 3.3 V systems without level-shifting circuitry.
What is the input offset voltage specification for the TLC2254AQPWRQ1?
The TLC2254AQPWRQ1 has a maximum input offset voltage of 850 µV at 25°C and 1000 µV over the full −40°C to +125°C operating range. This tight VIO spec, combined with a low 0.5 µV/°C temperature coefficient, ensures minimal gain error in precision sensor front-ends such as thermistor or strain gauge amplifiers used in automotive climate and safety systems.
How does the noise performance of the TLC2254AQPWRQ1 compare to legacy automotive op-amps?
The TLC2254AQPWRQ1 delivers 19 nV/√Hz input voltage noise at 1 kHz - approximately 4× lower than predecessors like the TLC27L4. This reduction directly improves signal-to-noise ratio in vibration, acoustic, and current-sensing applications, enabling detection of smaller amplitude events (e.g., early-stage bearing wear) without increasing gain or post-processing complexity.
Is the TLC2254AQPWRQ1 pin-compatible with other devices in the TLC225x-Q1 family?
Yes, the TLC2254AQPWRQ1 shares identical pinout and package (14-pin TSSOP) with TLC2254QPRQ1, TLC2254AQDRQ1, and TLC2254QDRQ1. All variants maintain the same terminal mapping and mechanical footprint, allowing hardware reuse across precision (A-grade) and standard-grade versions - simplifying BOM rationalization and design scalability.
TLC2254AQPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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 (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TLC2254AQPWRQ1 FAQ
1.How can I place an order for TLC2254AQPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254AQPWRQ1 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 TLC2254AQPWRQ1 reliable?
The price and inventory of TLC2254AQPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254AQPWRQ1 is usually 5 days.
3.What payment methods are accepted for TLC2254AQPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254AQPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254AQPWRQ1?
TLC2254AQPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254AQPWRQ1 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 TLC2254AQPWRQ1?
For technical support, including TLC2254AQPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254AQPWRQ1 requirements.
6.How does Aetrix verify that TLC2254AQPWRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC2254AQPWRQ1 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 TLC2254AQPWRQ1 meets industry standards.
7.What is the process for return or replacement of TLC2254AQPWRQ1?
All TLC2254AQPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254AQPWRQ1, 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 TLC2254AQPWRQ1 part is unused and in its original packaging.
Return procedure for TLC2254AQPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC2254AQPWRQ1 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
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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
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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