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Texas Instruments TLC27L4CPWR
- Part No.:
- TLC27L4CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC27L4CPWR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,970
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Product details
Overview
TLC27L4CPWR from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for ultra-low-power, single-supply sensor signal conditioning. It delivers 10 mV max input offset voltage (25°C), 195 µW typical power consumption at 5 V, and rail-to-rail output swing with common-mode input extending below ground - enabling direct interfacing with transducers in battery-powered field transmitters.
For engineers reviewing the TLC27L4CPWR datasheet, TLC27L4CPWR pinout, TLC27L4CPWR application, or TLC27L4CPWR equivalent, this page provides verified specifications, validated pin functions, confirmed operating conditions (0°C to 70°C), and real-world use cases in pressure/temperature/level transmitter front-ends where low drift and high input impedance (>10¹² Ω) are critical.
Technical Context
The TLC27L4CPWR implements a silicon-gate LinCMOS™ input stage, delivering bipolar-like precision (low VIO, high CMRR) without bipolar power penalties. Its architecture supports single-supply operation down to 3 V while maintaining input common-mode range extending 0.2 V below GND and output swing to within 50 mV of GND.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2), latch-up immunity, and stable DC performance with 0.1 µV/month typical input offset drift - making it suitable for long-life, maintenance-free analog signal chains in industrial sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - defines worst-case DC error in precision gain stages without trimming |
| Supply Current (typ) | 68 µA per amplifier at 5 V - enables multi-channel operation on microamp-level power budgets |
| Input Impedance | 10¹² Ω typical - minimizes loading on high-impedance sensors (e.g., thermistors, piezoresistive elements) |
| Common-Mode Input Range | –0.2 V to 3.5 V at 5 V supply - allows direct connection to grounded-sensor outputs in single-supply systems |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD - supports full dynamic range utilization with 5 V ADCs |
| Unity-Gain Bandwidth | 85 kHz at 5 V - sufficient for DC-coupled sensor amplification and anti-alias filtering up to ~10 kHz |
| Input Offset Drift | 1.1 µV/°C (25°C to 70°C) - ensures <15 µV total drift over full temperature range, critical for uncalibrated field devices |
Pinout & Package
Packaged in a 14-pin TSSOP (PW), the TLC27L4CPWR integrates four independent op-amp channels with shared power and ground pins, optimized for compact PCB layouts in space-constrained transmitter modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (Ch 1–4) | High-impedance node for reference or sensor signal routing; accepts voltages down to –0.2 V |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (Ch 1–4) | Feedback node for closed-loop configurations; matched to noninverting inputs for CMRR optimization |
| 1OUT, 2OUT, 3OUT, 4OUT | Output (Ch 1–4) | Capable of sourcing/sinking ±30 mA; swings to within 50 mV of GND for true single-supply compatibility |
| VDD (Pin 4) | Positive supply | Accepts 3–16 V; powers all four amplifiers; decoupling required within 1 cm for stability |
| GND (Pin 11) | Ground / negative rail | Reference for all inputs/outputs; common return path for all four channels and external circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 195 µW total (4 amps @ 5 V) - extends battery life in remote wireless sensor nodes beyond 10 years |
| Rail-to-rail output capability | Output reaches within 50 mV of GND and 0.9 V of VDD - maximizes ADC resolution without level-shifting circuitry |
| Extended common-mode input range | Includes voltages 0.2 V below GND - eliminates need for negative bias in single-supply transducer interfaces |
| ESD protection | Rated to 2000 V HBM - reduces field failure risk during handling and PCB assembly |
| Latch-up immunity | Designed-in robustness against transient-induced parasitic conduction - improves reliability in noisy industrial environments |
Applications
| Pressure Transmitter Front-End | Temperature Transmitter Signal Chain |
|---|---|
|
Use Scenario: Amplifying millivolt-level bridge output from piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Quad op-amp configured as instrumentation amplifier (Ch1–Ch2), filter (Ch3), and buffer (Ch4) - all powered from 3.3 V or 5 V supply. Use Value: 10¹² Ω input impedance prevents sensor loading; 10 mV VIO enables <0.5% FS error without calibration; ultra-low IDD preserves battery runtime. |
Use Scenario: Conditioning RTD or thermistor signals in industrial temperature transmitters with 4–20 mA loop or digital output. IC Role / Device Role / Timing Role: Precision current source (Ch1), differential amplifier (Ch2), low-pass filter (Ch3), and output driver (Ch4) - operating across 0°C to 70°C ambient. Use Value: Common-mode input range extending below GND allows direct Kelvin sensing; 0.1 µV/month VIO drift ensures long-term accuracy without recalibration. |
| Level Transmitter Analog Interface | Smoke Detector Signal Processing |
|
Use Scenario: Converting capacitance or hydrostatic pressure changes into linear voltage outputs for tank level monitoring. IC Role / Device Role / Timing Role: Charge amplifier (Ch1), gain stage (Ch2), offset correction (Ch3), and output buffer (Ch4) - powered from 5 V isolated supply. Use Value: 85 kHz unity-gain bandwidth supports fast step response; 65 dB min CMRR rejects common-mode noise from motor drives or pumps. |
Use Scenario: Amplifying weak photocurrent signals from ionization or optical smoke chambers in residential/commercial detectors. IC Role / Device Role / Timing Role: Transimpedance amplifier (Ch1), baseline correction (Ch2), comparator interface (Ch3), and alarm driver (Ch4) - operating from coin-cell battery. Use Value: 195 µW total quiescent power enables >5-year shelf life; ESD-hardened inputs withstand handling during mass production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IPW | Lower VIO (2 mV max), higher supply current (550 µA typ), rail-to-rail I/O | Better DC precision but 3× higher power - unsuitable for battery-only operation | Select when VIO < 2 mV is mandatory and power budget allows ≥500 µA per amp |
| LM324DR | Higher VIO (7 mV typ), no extended common-mode range, bipolar input stage | Compatible pinout but lacks sub-100 µA operation and GND-referenced input - requires dual supply or level shifters | Select only for cost-sensitive, non-battery, non-precision applications where 7 mV VIO is acceptable |
Compared with TLV2464IPW, TLC27L4CPWR trades 5× lower power for 5× higher input offset; compared with LM324DR, it adds true single-supply capability and 10× lower input bias current - making it uniquely suited for uncalibrated, long-life sensor front-ends.
Availability
TLC27L4CPWR is available at Aetrix Electronics and suitable for pressure transmitter design, temperature sensor signal conditioning, and level measurement systems requiring stable component supply across industrial OEM production cycles.
Supply support for TLC27L4CPWR 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 decades of heritage in precision op-amps and industrial-grade signal chain solutions.
The TLC27Lx family was engineered specifically for low-power, high-impedance sensor interfacing in field transmitters - combining LinCMOS™ stability with single-supply usability for battery-operated and maintenance-free instrumentation.
FAQ
What is the maximum operating temperature range for the TLC27L4CPWR?
The TLC27L4CPWR is characterized for operation from 0°C to 70°C (C-suffix grade). It supports supply voltages from 3 V to 16 V across this range, with guaranteed specifications including input offset voltage ≤12 mV and supply current ≤84 µA at 70°C. Operation outside this range is not specified and may degrade performance or reliability.
Does the TLC27L4CPWR support true single-supply operation with inputs referenced to ground?
Yes, the TLC27L4CPWR supports true single-supply operation: its common-mode input voltage range extends to –0.2 V (below GND) at 5 V supply, and its output swings to within 50 mV of GND. This allows direct connection of grounded-sensor outputs (e.g., bridge sensors) without level-shifting circuitry - a key enabler for simplified, low-component-count transmitter designs.
What is the typical input bias current of the TLC27L4CPWR, and why does it matter?
The TLC27L4CPWR exhibits a typical input bias current of 0.6 pA at 25°C, enabled by its LinCMOS™ input stage. This ultra-low value prevents loading errors in high-impedance sensor circuits (e.g., pH electrodes, photodiodes, or thermistors), ensuring signal integrity without additional guarding or active compensation - critical for maintaining accuracy in precision measurement front-ends.
Can the TLC27L4CPWR drive capacitive loads, and what is its phase margin?
The TLC27L4CPWR has a typical phase margin of 34° at 25°C with 20 pF load and 10 mV input (unity-gain configuration). It remains stable with ≤20 pF capacitive loads; larger loads require isolation resistors or compensation. Its 85 kHz unity-gain bandwidth and 0.03 V/µs slew rate limit large-signal settling but suit DC and low-frequency sensor applications where stability outweighs speed.
How does the input offset voltage drift specification impact long-term system calibration?
The TLC27L4CPWR specifies typical input offset voltage drift of 0.1 µV/month (including first 30 days) and 1.1 µV/°C over temperature. This low drift ensures minimal calibration drift over time and temperature - for example, <15 µV total drift over 0°C–70°C and <1 µV per year under stable conditions - enabling decade-long field deployment without recalibration in pressure or temperature transmitters.
TLC27L4CPWR 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:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.05V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 57µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TLC27L4CPWR FAQ
1.How can I place an order for TLC27L4CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4CPWR 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 TLC27L4CPWR reliable?
The price and inventory of TLC27L4CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4CPWR is usually 5 days.
3.What payment methods are accepted for TLC27L4CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4CPWR?
TLC27L4CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4CPWR 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 TLC27L4CPWR?
For technical support, including TLC27L4CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4CPWR requirements.
6.How does Aetrix verify that TLC27L4CPWR is sourced from the original manufacturer or authorized distributors?
All TLC27L4CPWR 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 TLC27L4CPWR meets industry standards.
7.What is the process for return or replacement of TLC27L4CPWR?
All TLC27L4CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4CPWR, 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 TLC27L4CPWR part is unused and in its original packaging.
Return procedure for TLC27L4CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L4CPWR Tags
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