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Texas Instruments TLC2254QPWRQ1
- Part No.:
- TLC2254QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2254QPWRQ1.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,768
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Product details
Overview
TLC2254QPWRQ1 from Texas Instruments is a quad-channel, rail-to-rail output, very low-power operational amplifier qualified for automotive applications (−40°C to 125°C). It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and full rail-to-rail output swing - enabling high-precision signal conditioning in battery-powered automotive sensor interfaces and ADC front-ends.
For engineers reviewing the TLC2254QPWRQ1 datasheet, TLC2254QPWRQ1 pinout, TLC2254QPWRQ1 application, or TLC2254QPWRQ1 equivalent, this device is selected for ultra-low-power, high-input-impedance analog signal chains where ESD robustness (>100 V MM), wide common-mode range (down to VDD−), and AEC-Q100 Grade 1 qualification are required.
Technical Context
The TLC2254QPWRQ1 uses Advanced LinCMOS™ process technology to achieve micropower operation without sacrificing precision: its input stage features p-channel JFET-like input transistors delivering 1 pA bias current and 10¹² Ω input resistance, while the output stage supports true rail-to-rail swing with ±50 mA short-circuit current capability. It operates from single supplies (2.2 V to 8 V) or split supplies (±2.2 V to ±8 V).
It is fully specified across −40°C to 125°C with guaranteed parameters including 850 µV max input offset voltage (TLC2254A-Q1 variant), 70 dB min CMRR, 80 dB min PSRR, and 0.2 MHz gain-bandwidth product - making it suitable for DC-coupled, low-frequency precision amplification in harsh automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Channel | 35 µA typ - enables multi-channel sensing in energy-constrained automotive modules (e.g., body control units, tire pressure sensors). |
| Input Bias Current | 1 pA typ - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors or pH electrodes. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - 4× lower than legacy micropower CMOS op-amps, critical for low-level sensor signal fidelity. |
| Rail-to-Rail Output Swing | Swings within 10 mV of both rails at light load - maximizes dynamic range when driving 12-bit+ SAR ADCs with 5 V or ±5 V supplies. |
| Common-Mode Input Range | Includes negative rail (VDD−) - allows direct interfacing with ground-referenced transducers without level-shifting circuitry. |
| ESD Rating (Machine Model) | 100 V - meets automotive board-level handling requirements per AEC-Q100 stress test guidelines. |
| Operating Temperature | −40°C to 125°C - qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
Pinout & Package
TLC2254QPWRQ1 is housed in a 14-pin TSSOP (PW) package, 5.0 mm × 4.4 mm, 0.65 mm pitch, with 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 external load or next-stage input; rail-to-rail capable. |
| 2 | IN1− | Inverting input of Amp 1 - high-impedance node (10¹² Ω); sensitive to PCB leakage and layout parasitics. |
| 3 | IN1+ | Non-inverting input of Amp 1 - same impedance as IN1−; used for unity-gain buffers or differential sensing. |
| 4 | VDD+ | Positive supply rail - accepts 2.2 V to 8 V (single) or ±2.2 V to ±8 V (split) operation. |
| 5 | IN2+ | Non-inverting input of Amp 2 - independent channel; shares no internal nodes with Amp 1. |
| 6 | IN2− | Inverting input of Amp 2 - matched performance to IN1−; supports dual-channel instrumentation topologies. |
| 7 | OUT2 | Amplifier 2 output - electrically isolated from OUT1; enables dual-sensor signal paths on one die. |
| 8 | GND / VDD− | Ground or negative supply - serves as reference for all four amplifiers; must be low-impedance. |
| 9 | OUT3 | Amplifier 3 output - third independent channel; identical specs to OUT1/OUT2. |
| 10 | IN3− | Inverting input of Amp 3 - part of quad architecture; no crosstalk with other channels per datasheet testing. |
| 11 | IN3+ | Non-inverting input of Amp 3 - supports three simultaneous sensor conditioners in compact layout. |
| 12 | IN4+ | Non-inverting input of Amp 4 - fourth channel enables full quad functionality without external duplication. |
| 13 | IN4− | Inverting input of Amp 4 - completes quad set; validated for simultaneous operation at full temperature range. |
| 14 | OUT4 | Amplifier 4 output - final channel; all four outputs fully characterized for phase margin and stability with 100 pF load. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers >99% of supply rail voltage swing at 50 µA load - eliminates need for level-shifting before ADC sampling. |
| Ultra-low input bias current | 1 pA typical - reduces voltage error across high-value feedback networks (e.g., 10 MΩ+), critical for long-time-constant filters. |
| Automotive-grade qualification | AEC-Q100 Grade 1 (−40°C to 125°C) with 100 V MM ESD - ensures reliability in engine control, HVAC, and ADAS subsystems. |
| Low-noise micropower design | 19 nV/√Hz @ 1 kHz with only 35 µA/channel - achieves SNR >80 dB for 100 Hz–10 kHz sensor signals without active cooling. |
| Single- or split-supply operation | Fully functional from 2.2 V to 8 V single supply or ±2.2 V to ±8 V - simplifies power architecture in mixed-voltage automotive ECUs. |
Applications
| Automotive Cabin Temperature Sensor Interface | Engine Oil Pressure Transducer Amplifier |
|---|---|
|
Use Scenario: Amplifying millivolt-level output from NTC thermistors embedded in HVAC ducts and cabin air inlets. IC Role / Device Role / Timing Role: Quad-channel signal conditioner providing gain, filtering, and rail-to-rail buffering prior to 12-bit microcontroller ADC. Use Value: 1 pA input bias prevents thermistor self-heating errors; 35 µA/channel minimizes battery drain in always-on climate control modules. |
Use Scenario: Conditioning output from piezoresistive oil pressure sensors mounted on engine blocks under high-temperature vibration. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with matched resistor network, operating at 125°C ambient. Use Value: 850 µV max input offset (TLC2254A-Q1 variant) ensures <±0.5% full-scale error over lifetime; rail-to-rail output drives ADC directly. |
| Electric Power Steering (EPS) Torque Sensor Signal Chain | ADAS Camera Module Lens Focus Driver Interface |
|
Use Scenario: Amplifying Wheatstone bridge output from magnetostrictive torque sensors in EPS motor control loops. IC Role / Device Role / Timing Role: Instrumentation-grade front-end with low noise and high CMRR to reject motor EMI and supply ripple. Use Value: 70 dB min CMRR and 80 dB min PSRR suppress PWM noise coupling; 0.2 MHz GBW supports 10 kHz closed-loop bandwidth. |
Use Scenario: Buffering analog focus voltage (0–5 V) from camera SoC DAC to voice-coil motor driver IC in surround-view systems. IC Role / Device Role / Timing Role: Unity-gain voltage follower isolating sensitive DAC output from capacitive motor load. Use Value: Rail-to-rail output ensures full 0–5 V range delivered; 19 nV/√Hz noise avoids focus jitter in low-light conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2434QDRQ1 | Higher supply current (150 µA/ch), higher slew rate (0.5 V/µs), but only 65 µV max VIO - not rail-to-rail output. | Better for medium-speed control loops requiring faster settling; unsuitable where full rail utilization is needed. | Select TLV2434QDRQ1 when speed >0.1 V/µs is required and rail-to-rail output is not mandatory. |
| LMV324QDRQ1 | Lower cost, 100 µA/ch supply current, rail-to-rail input/output, but 250 µV max VIO and 42 nV/√Hz noise - no AEC-Q100 Grade 1 rating. | Suitable for non-safety-critical interior modules (e.g., infotainment sensors) where qualification is optional. | Choose LMV324QDRQ1 for cost-sensitive, non-under-hood applications where extended temperature range is not required. |
Compared with TLV2434QDRQ1 and LMV324QDRQ1, the TLC2254QPWRQ1 uniquely balances ultra-low power (35 µA/ch), rail-to-rail output, AEC-Q100 Grade 1 qualification, and 19 nV/√Hz noise - making it the only option for precision, low-power, high-reliability automotive sensing where all four criteria are mandatory.
Availability
TLC2254QPWRQ1 is available at Aetrix Electronics and suitable for automotive cabin control, engine monitoring, and ADAS sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2254QPWRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive, industrial, and power management solutions.
The TLC225x-Q1 family was designed specifically for automotive signal conditioning - delivering rail-to-rail output, micropower operation, and AEC-Q100 qualification in a single monolithic quad op-amp package.
FAQ
What is the maximum supply voltage for TLC2254QPWRQ1?
The TLC2254QPWRQ1 supports a maximum supply voltage of 8 V for single-supply operation or ±8 V for split-supply operation, as specified in the Absolute Maximum Ratings table. Exceeding these limits risks permanent damage. Operation above ±8 V or 8 V is not supported, even briefly.
Does TLC2254QPWRQ1 support rail-to-rail input?
No, the TLC2254QPWRQ1 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−) but stops 1.5 V below the positive rail (VDD+ − 1.5 V) under recommended operating conditions.
Is TLC2254QPWRQ1 pin-compatible with TLC2254QDRQ1?
Yes, TLC2254QPWRQ1 (TSSOP-14) and TLC2254QDRQ1 (SOIC-14) share identical pinout and electrical specifications - only the package differs. PCB layout requires footprint change, but schematic and netlist remain identical.
What is the typical input offset voltage for TLC2254QPWRQ1 at 25°C?
The TLC2254QPWRQ1 has a typical input offset voltage of 200 µV at 25°C, with a maximum of 1550 µV across the full −40°C to 125°C temperature range. For tighter offset performance, the TLC2254AQPWRQ1 variant offers 850 µV max at 25°C.
Can TLC2254QPWRQ1 drive a 100 pF capacitive load stably?
Yes, the TLC2254QPWRQ1 is characterized for stability with 100 pF capacitive loads at unity gain, showing 63° phase margin and 15 dB gain margin per the Operating Characteristics tables - confirming suitability for driving ADC input capacitors and long traces without external compensation.
TLC2254QPWRQ1 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:
- Obsolete
- Amplifier Type:
- CMOS
- 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:
- 80µA (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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TLC2254QPWRQ1 FAQ
1.How can I place an order for TLC2254QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254QPWRQ1 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 TLC2254QPWRQ1 reliable?
The price and inventory of TLC2254QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254QPWRQ1 is usually 5 days.
3.What payment methods are accepted for TLC2254QPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254QPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254QPWRQ1?
TLC2254QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254QPWRQ1 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 TLC2254QPWRQ1?
For technical support, including TLC2254QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254QPWRQ1 requirements.
6.How does Aetrix verify that TLC2254QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All TLC2254QPWRQ1 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 TLC2254QPWRQ1 meets industry standards.
7.What is the process for return or replacement of TLC2254QPWRQ1?
All TLC2254QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254QPWRQ1, 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 TLC2254QPWRQ1 part is unused and in its original packaging.
Return procedure for TLC2254QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC2254QPWRQ1 Tags
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