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Texas Instruments TLC27L4CD
- Part No.:
- TLC27L4CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L4CD.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:975
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Product details
Overview
TLC27L4CD from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for low-power, single-supply sensor signal conditioning. It delivers 10 mV max input offset voltage (25°C), ultra-low 195 µW quiescent power at 5 V, and rail-to-rail output swing with common-mode input range extending below ground - enabling direct interfacing with transducers in battery-powered field transmitters.
For engineers reviewing the TLC27L4CD datasheet, TLC27L4CD pinout, TLC27L4CD application, or TLC27L4CD equivalent, this page provides verified specifications, SOIC-14 package details, real-world use cases in industrial sensing, and two validated alternative op-amps with documented functional and parametric distinctions.
Technical Context
The TLC27L4CD implements a silicon-gate LinCMOS™ input stage, delivering 10¹² Ω typical input impedance and sub-picoampere bias currents (0.6 pA typ at 25°C). Its architecture supports true single-supply operation from 3 V to 16 V across 0°C to 70°C, with common-mode input voltage range extending to –0.2 V (below GND) and output swing within 50 mV of the negative rail.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2), latch-up immunity, and stable DC performance - including 0.1 µV/month input offset drift - making it suitable for long-life, maintenance-free analog front-ends in remote instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | Max 10 mV at 25°C - sets baseline DC error in precision gain stages and sensor bridges. |
| Supply Current (4 amps) | 68 µA max at 25°C, 5 V - enables multi-year battery life in wireless sensor nodes. |
| Common-Mode Input Range | –0.2 V to 3.5 V at 5 V supply - allows direct connection to grounded sensors without level-shifting. |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD at 5 V - supports full dynamic range in single-supply data acquisition. |
| Unity-Gain Bandwidth | 85 kHz at 5 V, 25°C - sufficient for anti-aliasing, low-frequency filtering, and slow transducer outputs. |
| Input Bias Current | 0.6 pA typical at 25°C - preserves signal integrity in high-impedance pH, thermocouple, or piezoelectric interfaces. |
| ESD Rating | 2000 V HBM - reduces handling sensitivity and improves robustness in manufacturing and field deployment. |
Pinout & Package
Package: SOIC-14 (D suffix), 8.65 mm × 3.91 mm body, 1.27 mm pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (per channel) | High-impedance node for reference, sensor, or feedback signals; accepts voltages down to –0.2 V. |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (per channel) | Accepts differential or inverted inputs; matched with noninverting pins for precision gain configuration. |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (per channel) | Capable of sourcing/sinking ±30 mA; swings within 50 mV of GND and 0.9 V of VDD at 5 V. |
| VDD | Positive power supply | Supports 3 V to 16 V operation; supplies all four amplifiers and internal bias circuitry. |
| GND | Ground / negative supply | Reference for all inputs/outputs; common return path; extends common-mode range below this node. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables maximum signal utilization in 3–5 V systems without dual supplies or level shifters. |
| Sub-picoampere input bias current | Maintains accuracy in high-Z sensor interfaces (e.g., glass electrodes, photodiodes) without guard traces. |
| Single-supply operation from 3 V | Eliminates need for charge pumps or negative rails in portable and IoT edge devices. |
| 0.1 µV/month input offset drift | Reduces calibration frequency in field-deployed equipment such as pressure or flow transmitters. |
| Integrated ESD protection (2000 V HBM) | Lowers risk of latent damage during PCB assembly and end-user handling. |
Applications
| Pressure Transmitter | Temperature Transmitter |
|---|---|
Use Scenario: Amplifies millivolt-level output from silicon piezoresistive pressure sensors in industrial process control loops. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and offset correction. Use Value: 10 mV VIO max and <1 µV/°C drift ensure ≤0.1% FS error over 0–70°C ambient range. |
Use Scenario: Conditions output from RTD or thermistor bridges in HVAC and building automation systems. IC Role / Device Role / Timing Role: Low-power, rail-to-rail buffer and filter stage before ADC sampling. Use Value: 195 µW total quiescent power enables continuous operation on coin-cell batteries for >5 years. |
| Smoke Detector Signal Chain | Remote Motion Sensor Interface |
Use Scenario: Amplifies weak photocurrent from ionization chamber or optical smoke chamber. IC Role / Device Role / Timing Role: Ultra-low-noise, high-impedance transimpedance preamplifier with adjustable threshold. Use Value: 70 nV/√Hz input noise and 0.6 pA IIB preserve signal-to-noise ratio in sub-nA current detection. |
Use Scenario: Interfaces PIR sensor output to microcontroller ADC in battery-powered occupancy sensors. IC Role / Device Role / Timing Role: Single-supply active low-pass filter and DC offset removal stage. Use Value: Common-mode range extending below GND allows direct coupling of AC-coupled PIR signals without bias resistors. |
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 |
|---|---|---|---|
| TLC27L4ID | Same architecture and pinout; wider operating temperature range (–40°C to +85°C) and identical 10 mV VIO max. | Suitable for automotive under-hood or outdoor industrial enclosures where ambient exceeds 70°C. | Select TLC27L4ID when extended temperature compliance is required; no layout change needed. |
| TLV2464CD | Higher drive strength (20 mA), rail-to-rail I/O, but higher supply current (550 µA per amp) and 3 mV VIO max. | Better for driving capacitive loads or higher-speed buffering; less suited for ultra-low-power battery operation. | Choose TLV2464CD only if bandwidth (>1.5 MHz) or output drive outweighs power budget constraints. |
Compared with TLC27L4CD, TLC27L4ID offers identical precision and power at extended temperature, while TLV2464CD trades 3× higher quiescent power for improved speed and drive - making TLC27L4CD optimal for longevity-critical, low-frequency sensor front-ends.
Availability
TLC27L4CD is available at Aetrix Electronics and suitable for pressure transmitter design, temperature transmitter calibration, and smoke detector signal conditioning requiring stable component supply across industrial OEM production cycles.
Supply support for TLC27L4CD 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-amp innovation.
The TLC27Lx family was engineered for ultra-low-power, high-impedance sensor interface applications in industrial process control, environmental monitoring, and safety-critical detection systems.
FAQ
What is the maximum supply voltage for TLC27L4CD?
The absolute maximum supply voltage for TLC27L4CD is 18 V, but the recommended operating range is 3 V to 16 V across 0°C to 70°C. Operation above 16 V risks exceeding dissipation limits and degrading long-term reliability. The TLC27L4CD datasheet specifies 16 V as the upper limit for continuous operation under specified temperature conditions.
Does TLC27L4CD support true rail-to-rail input?
No - the TLC27L4CD supports rail-to-rail *output* swing (within 50 mV of GND and VDD), but its common-mode input voltage range extends only to –0.2 V (below GND) and up to 3.5 V at 5 V supply. It does not accept inputs at the positive rail; the input stage is not rail-to-rail input capable.
Can TLC27L4CD operate from a single 3.3 V supply?
Yes - the TLC27L4CD is fully specified for 3 V minimum supply and functions reliably at 3.3 V. At this voltage, it maintains 10 mV max input offset, 68 µA max supply current, and common-mode input range from –0.2 V to ~2.1 V, making it ideal for modern low-voltage industrial microcontroller systems.
What is the thermal performance of TLC27L4CD in SOIC-14 package?
In SOIC-14 (D package), the TLC27L4CD has a thermal resistance θJA of 120°C/W. At 68 µA supply current and 5 V supply, total power dissipation is ~340 µW, resulting in negligible junction temperature rise (<0.05°C) - confirming suitability for sealed, convection-limited enclosures.
Is TLC27L4CD pin-compatible with other TLC27Lx variants?
Yes - all TLC27Lx quad op-amps (including TLC27L4CD, TLC27L4AD, TLC27L4BD, TLC27L9CD) share identical SOIC-14 pinout and electrical interface. Only input offset voltage grade and temperature rating differ; no PCB redesign is needed when upgrading within the family.
TLC27L4CD 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:
- -
- 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-SOIC
TLC27L4CD FAQ
1.How can I place an order for TLC27L4CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4CD 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 TLC27L4CD reliable?
The price and inventory of TLC27L4CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4CD is usually 5 days.
3.What payment methods are accepted for TLC27L4CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4CD?
TLC27L4CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4CD 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 TLC27L4CD?
For technical support, including TLC27L4CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4CD requirements.
6.How does Aetrix verify that TLC27L4CD is sourced from the original manufacturer or authorized distributors?
All TLC27L4CD 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 TLC27L4CD meets industry standards.
7.What is the process for return or replacement of TLC27L4CD?
All TLC27L4CD units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4CD, 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 TLC27L4CD part is unused and in its original packaging.
Return procedure for TLC27L4CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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