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Texas Instruments TLC27L4IDR
- Part No.:
- TLC27L4IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L4IDR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:14,585
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Product details
Overview
TLC27L4IDR 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 68 µA typical supply current (four amplifiers, VDD = 5 V), and rail-to-rail output swing down to the negative rail - enabling direct interfacing with transmitters in battery-powered field instrumentation.
For engineers reviewing the TLC27L4IDR datasheet, TLC27L4IDR pinout, TLC27L4IDR application, or TLC27L4IDR equivalent, this page provides verified electrical specs, SOIC-14 pin functions, real-world use cases in industrial sensing, and two validated alternative parts with documented functional trade-offs.
Technical Context
The TLC27L4IDR implements four independent high-impedance (10¹² Ω typical) op-amp channels in a single monolithic LinCMOS™ die, supporting operation from 4 V to 16 V across –40°C to +85°C. Its input stage extends common-mode voltage below the negative rail, and its output drives to GND under load - critical for single-supply transducer buffering.
It achieves 85 kHz unity-gain bandwidth and 0.03 V/µs slew rate at 5 V, with 87 dB CMRR and 97 dB supply-voltage rejection - optimized for stable DC-coupled gain stages where drift, power, and input bias current (<1 pA typical) dominate performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets absolute DC error floor in precision gain stages without trimming |
| Supply Current (typ) | 68 µA for all four amplifiers at 5 V - enables multi-year battery life in remote sensors |
| Common-Mode Input Range | Extends 0.2 V below GND - allows direct connection to grounded-sensor outputs |
| Output Voltage Swing | Drives to GND (1 mV typical low-level output) - supports full dynamic range in single-supply systems |
| Unity-Gain Bandwidth | 85 kHz at 5 V - sufficient for slow-varying process signals (e.g., pressure, temperature, level) |
| Input Bias Current (typ) | 0.6 pA at 25°C - minimizes voltage drop across high-impedance source networks (e.g., pH electrodes) |
| CMRR / PSRR | 87 dB / 97 dB - rejects noise from shared power rails and common-mode interference in industrial environments |
Pinout & Package
Package: SOIC-14 (D package), 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 accepting sensor or reference signals; accepts voltages down to –0.2 V |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (per channel) | Feedback or differential input node; matched to noninverting input for common-mode rejection |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (per channel) | Capable of sourcing/sinking ±30 mA; swings to GND and up to VDD – 1.1 V |
| VDD | Positive power supply | Accepts 4 V to 16 V; supplies all four amplifiers; internal ESD protection rated to 2000 V |
| GND | Ground / negative supply | Reference for all inputs and outputs; common return path for quiescent and load currents |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 68 µA total supply current at 5 V - reduces thermal drift and extends battery runtime in portable field devices |
| Rail-to-rail output capability | Output drives to GND (1 mV typical) - preserves full ADC input range in 0–5 V systems without level-shifting |
| Extended common-mode input range | Inputs operate 0.2 V below GND - eliminates need for negative supply when conditioning grounded transducers |
| LinCMOS™ input stage | 10¹² Ω input impedance and sub-picoampere bias current - prevents loading of high-Z sources like thermocouples or piezoelectric sensors |
| ESD protection | 2000 V HBM rating per MIL-STD-883C Method 3015.2 - improves handling robustness during PCB assembly |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level ionization chamber or thermistor signals in standalone fire alarm units. IC Role / Device Role / Timing Role: Quad-channel DC-coupled buffer and gain stage for analog sensor outputs prior to ADC conversion. Use Value: 10 mV VIO and 0.6 pA IIB ensure minimal baseline shift over temperature; 68 µA IDD enables >5-year CR123A battery life. |
Use Scenario: Conditioning millivolt-level bridge output from MEMS pressure sensors in HVAC or industrial control systems. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with programmable gain and offset correction. Use Value: Common-mode input extending below GND allows direct interface with grounded bridge configurations; 87 dB CMRR suppresses supply noise in noisy plant environments. |
| Temperature Transmitter | Level Transmitter |
Use Scenario: Linearizing and scaling RTD or thermocouple signals for 4–20 mA loop transmission in process plants. IC Role / Device Role / Timing Role: Precision voltage-to-current converter input stage and cold-junction compensation amplifier. Use Value: 1.1 µV/°C αVIO ensures <1 µV drift over 40°C ambient span; 4 V min VDD supports wide-input-loop-powered designs. |
Use Scenario: Signal conditioning for ultrasonic or capacitive tank-level sensors in water/wastewater infrastructure. IC Role / Device Role / Timing Role: Low-noise preamplifier and active filter for echo-received analog waveforms. Use Value: 70 nV/√Hz input noise preserves SNR in weak-signal detection; 14-pin SOIC layout simplifies routing of four independent sensor paths. |
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 |
|---|---|---|---|
| TLC27L4CDR | Same electrical specs but rated for 0°C to 70°C only; 10 mV VIO max at 25°C identical | Not suitable for extended industrial temperature range (–40°C to +85°C) | Select TLC27L4CDR only for commercial-grade indoor applications with controlled ambient |
| TLV2464IDR | Lower VIO (2.5 mV max), higher supply current (550 µA typ), rail-to-rail I/O, 220 kHz GBW | Better DC precision but 8× higher power; requires redesign for battery-constrained nodes | Choose TLV2464IDR when higher speed and tighter offset are prioritized over ultra-low power |
Compared with TLC27L4IDR, TLC27L4CDR sacrifices temperature range for cost parity, while TLV2464IDR trades 8× higher quiescent current for improved offset and bandwidth - making TLC27L4IDR optimal for long-life, wide-temperature, low-drift sensor front-ends.
Availability
TLC27L4IDR is available at Aetrix Electronics and suitable for smoke detectors, pressure transmitters, temperature transmitters, and level transmitters requiring stable component supply across extended industrial temperature ranges and multi-year deployment cycles.
Supply support for TLC27L4IDR 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 signal chains.
The TLC27Lx family was engineered for ultra-low-power, high-impedance sensor interfacing in harsh industrial environments - delivering LinCMOS™ stability, latch-up immunity, and ESD-hardened operation without bipolar power penalties.
FAQ
What is the maximum operating temperature range for the TLC27L4IDR?
The TLC27L4IDR is characterized for continuous operation from –40°C to +85°C, meeting industrial temperature requirements. This rating is confirmed in Section 5.3 (Recommended Operating Conditions) of the official TI datasheet SLOS053E, where "I suffix" devices explicitly specify this range. The D (SOIC-14) package supports thermal dissipation within these limits at rated supply voltages.
Does the TLC27L4IDR support true single-supply operation with inputs below ground?
Yes - the TLC27L4IDR's common-mode input voltage range extends to –0.2 V relative to GND at 5 V supply, as specified in Table 5.3. This allows direct connection to grounded sensors (e.g., strain gauges, thermocouples) without level-shifting circuitry. Its output also swings to GND, completing a fully single-supply signal chain.
What is the typical supply current for the TLC27L4IDR at 5 V?
The TLC27L4IDR draws 68 µA typical supply current for all four amplifiers at VDD = 5 V and TA = 25°C, per Table 5.4 (Electrical Characteristics, VDD = 5 V, I Suffix). At full industrial temperature range (–40°C to +85°C), IDD remains within 29–52 µA, confirming ultra-low power suitability for battery-powered field devices.
Is the TLC27L4IDR pin-compatible with other TLC27Lx variants?
Yes - all TLC27Lx quad op-amps (including TLC27L4IDR, TLC27L4CDR, TLC27L4AIDR, TLC27L9IDR) share identical SOIC-14 (D), PDIP-14 (N), SOP-14 (NS), and TSSOP-14 (PW) pinouts per Figure 4-1 and Table 4-1. Pin functions (e.g., 1IN+, 1OUT, VDD, GND) are consistent across the family, enabling drop-in replacement for offset grade upgrades.
How does the input offset voltage drift specification apply to the TLC27L4IDR?
The TLC27L4IDR exhibits 0.1 µV/month typical input offset voltage drift (including first 30 days), as stated in the Features section. This long-term stability - combined with 1.1 µV/°C temperature coefficient - ensures minimal calibration drift over years of field operation, critical for unattended sensor nodes where recalibration is impractical.
TLC27L4IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm 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):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC27L4IDR FAQ
1.How can I place an order for TLC27L4IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4IDR 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 TLC27L4IDR reliable?
The price and inventory of TLC27L4IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4IDR is usually 5 days.
3.What payment methods are accepted for TLC27L4IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4IDR?
TLC27L4IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4IDR 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 TLC27L4IDR?
For technical support, including TLC27L4IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4IDR requirements.
6.How does Aetrix verify that TLC27L4IDR is sourced from the original manufacturer or authorized distributors?
All TLC27L4IDR 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 TLC27L4IDR meets industry standards.
7.What is the process for return or replacement of TLC27L4IDR?
All TLC27L4IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4IDR, 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 TLC27L4IDR part is unused and in its original packaging.
Return procedure for TLC27L4IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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