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Texas Instruments TLC27L4BCNS
- Part No.:
- TLC27L4BCNS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC27L4BCNS.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,050
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Product details
Overview
TLC27L4BCNS from Texas Instruments is a precision quad operational amplifier in SOP-14 package, featuring 2 mV max input offset voltage at 25°C, ultra-low 195 µW power consumption at 5 V, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V over 0°C to 70°C and supports single-supply sensor signal conditioning in battery-powered field transmitters.
For engineers reviewing the TLC27L4BCNS datasheet, TLC27L4BCNS pinout, TLC27L4BCNS application, or TLC27L4BCNS equivalent, this page delivers verified specifications, validated pin functions, confirmed operating conditions for C-suffix devices, and two rigorously cross-checked alternative op amps for low-power precision analog designs.
Technical Context
The TLC27L4BCNS uses TI's LinCMOS™ silicon-gate process to achieve 10¹² Ω typical input impedance, sub-picoampere input bias current (0.6 pA typ), and latch-up immunity-enabling stable DC-coupled amplification without metal-gate drift penalties. Its common-mode input range extends 0.2 V below GND, supporting true single-supply operation with ground-referenced sensors.
It delivers 85 kHz unity-gain bandwidth and 0.03 V/µs slew rate at 5 V, optimized for low-frequency precision tasks-not high-speed signal processing. Input offset voltage drift is specified at 0.1 µV/month, including first 30 days, ensuring long-term calibration stability in unattended remote instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 2 mV at 25°C - enables ≤0.2% gain error in 1 V full-scale sensor interfaces without trimming |
| Supply Current (typ) | 68 µA per amplifier at 5 V - supports >10-year battery life in 10 µA average-current IoT nodes |
| Input Impedance (typ) | 10¹² Ω - prevents loading of high-Z sources like piezoelectric sensors or pH electrodes |
| Common-Mode Range | Extends 0.2 V below GND - allows direct interfacing to 0 V–reference transducers without level-shifting |
| Output Swing | Includes negative rail (VOL ≤ 50 mV) - preserves dynamic range in single-supply 3 V systems |
| Unity-Gain Bandwidth | 85 kHz at 5 V - sufficient for anti-aliasing, sensor filtering, and 10-bit ADC driving up to 10 kSPS |
| ESD Rating | 2000 V HBM - meets industrial IEC 61000-4-2 Level 2 requirements without external protection |
Pinout & Package
SOP-14 (NS) package: 14-pin surface-mount, 5.3 mm × 10.2 mm body, 1.27 mm pitch, gull-wing leads. RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for reference or sensor signal injection; accepts voltages down to –0.2 V |
| 1IN– | Inverting input, Channel 1 | Feedback node for closed-loop configuration; matched to 1IN+ for CMRR optimization |
| 1OUT | Output, Channel 1 | Rail-to-rail capable; drives ≥1 MΩ load to within 50 mV of GND at 5 V supply |
| 2IN+, 2IN–, 2OUT | Inputs/Output, Channel 2 | Electrically identical to Channel 1; independent operation with no crosstalk degradation |
| 3IN+, 3IN–, 3OUT | Inputs/Output, Channel 3 | Same specs as Ch1/Ch2; enables multi-channel signal conditioning on single IC |
| 4IN+, 4IN–, 4OUT | Inputs/Output, Channel 4 | Full quad functionality; all channels share same VDD and GND pins |
| GND (Pin 11) | Ground reference | Low-impedance return path for all four amplifiers; must be star-connected in mixed-signal PCBs |
| VDD (Pin 4) | Positive supply | Accepts 3–16 V; powers all channels; decoupling capacitor required within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power | 195 µW total quiescent power at 5 V - enables always-on sensing in energy-harvested nodes |
| Offset voltage stability | 0.1 µV/month drift - eliminates recalibration cycles in sealed environmental monitors |
| Latch-up immunity | Designed-in robustness against transient-induced CMOS latch-up - improves field reliability |
| Single-supply optimization | Input common-mode range includes GND; output swings to GND - removes need for dual supplies |
| ESD protection | 2000 V HBM rating - reduces risk of handling damage during manual assembly or field service |
Applications
| Pressure Transmitter | Smoke Detector |
|---|---|
Use Scenario: Amplifies mV-level output from piezoresistive pressure sensor in HVAC duct monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier with 2 mV offset tolerance and GND-referenced input. Use Value: Enables ±0.5% full-scale accuracy without trimming, extending calibration interval to 24 months. |
Use Scenario: Conditions ionization chamber current (pA–nA range) in residential smoke alarms. IC Role / Device Role / Timing Role: Ultra-low-input-bias-current transimpedance amplifier with 10¹² Ω input impedance. Use Value: Maintains <1% gain error across 0°C–70°C, critical for false-alarm suppression in varying ambient conditions. |
| Flow Transmitter | Temperature Transmitter |
Use Scenario: Buffers and scales output of turbine flow sensor in water metering systems. IC Role / Device Role / Timing Role: Low-power voltage follower with rail-to-rail output driving 12-bit SAR ADC reference input. Use Value: Delivers 0–3 V output swing from 3.3 V supply, maximizing ADC utilization without external level shift. |
Use Scenario: Amplifies RTD bridge differential voltage in industrial temperature loops (4–20 mA). IC Role / Device Role / Timing Role: Precision difference amplifier with matched input pairs and 87 dB CMRR. Use Value: Rejects common-mode noise from 50/60 Hz mains coupling, improving measurement SNR by 15 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision quad op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower offset (1.6 mV max), higher supply current (550 µA), 220 kHz GBW | Better AC performance but 2.8× higher power - unsuitable for multi-year battery operation | Choose TLV2464IDR only when bandwidth >100 kHz is required and power budget allows ≥500 µA |
| LMV324DR | Higher offset (7 mV max), rail-to-rail I/O, 1 MHz GBW, 120 µA per amp | Wider bandwidth but 6× worse DC accuracy - requires external trimming for <1% error | Choose LMV324DR for cost-sensitive consumer applications where offset trimming is acceptable |
Compared with TLC27L4BCNS, TLV2464IDR trades ultra-low power for higher speed and tighter offset, while LMV324DR sacrifices DC precision for lower cost and wider bandwidth-neither matches the unique combination of 2 mV offset, 68 µA supply current, and LinCMOS stability in the TLC27L4BCNS.
Availability
TLC27L4BCNS is available at Aetrix Electronics and suitable for pressure transmitter design, smoke detector certification, flow meter production, and temperature loop calibration requiring stable component supply across extended product lifecycles.
Supply support for TLC27L4BCNS 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 op amp innovation and broad industrial qualification.
The TLC27Lx family was designed for ultra-low-power, high-precision analog signal conditioning in battery-operated field instruments-emphasizing offset stability, input impedance, and single-supply usability over speed.
FAQ
What is the maximum operating temperature range for the TLC27L4BCNS?
The TLC27L4BCNS is characterized for operation from 0°C to 70°C, as indicated by its "C" suffix. It supports supply voltages from 3 V to 16 V within this range. Operation outside these limits may cause parametric shift or functional failure, and is not guaranteed by Texas Instruments' datasheet specifications for the TLC27L4BCNS.
Does the TLC27L4BCNS support true rail-to-rail input?
No-the TLC27L4BCNS features a common-mode input voltage range that extends 0.2 V below GND but only up to 3.5 V at 5 V supply (VICR = –0.2 V to 3.5 V). It does not support inputs at the positive rail. However, its output swings to within 50 mV of GND and to 4.1 V at 5 V, delivering rail-to-rail output capability.
Can the TLC27L4BCNS drive capacitive loads directly?
The TLC27L4BCNS exhibits 34° phase margin at unity gain with 20 pF load and becomes unstable with >100 pF capacitive loads without isolation resistance. For driving ADC inputs or cables, a 100 Ω series resistor between TLC27L4BCNS output and the capacitance is recommended to maintain stability and prevent ringing.
How does the input offset voltage of TLC27L4BCNS compare to TLC27L4ACNS and TLC27L4CNS?
The TLC27L4BCNS has a maximum input offset voltage of 2 mV at 25°C, tighter than TLC27L4CNS (10 mV) and TLC27L4ACNS (5 mV). This 2 mV grade makes TLC27L4BCNS suitable for applications demanding higher initial accuracy-such as calibrated sensor front-ends-without factory trimming.
Is the TLC27L4BCNS pin-compatible with other TLC27Lx variants in SOP-14?
Yes-the TLC27L4BCNS shares identical pinout, footprint, and electrical interface with all TLC27Lx SOP-14 variants (e.g., TLC27L4CNS, TLC27L4ACNS, TLC27L9CNS). This allows drop-in replacement within the same temperature grade (C-suffix) and package (NS), provided system-level offset and bandwidth requirements align.
TLC27L4BCNS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.209", 5.30mm 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-SO
TLC27L4BCNS FAQ
1.How can I place an order for TLC27L4BCNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4BCNS 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 TLC27L4BCNS reliable?
The price and inventory of TLC27L4BCNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4BCNS is usually 5 days.
3.What payment methods are accepted for TLC27L4BCNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4BCNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4BCNS?
TLC27L4BCNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4BCNS 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 TLC27L4BCNS?
For technical support, including TLC27L4BCNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4BCNS requirements.
6.How does Aetrix verify that TLC27L4BCNS is sourced from the original manufacturer or authorized distributors?
All TLC27L4BCNS 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 TLC27L4BCNS meets industry standards.
7.What is the process for return or replacement of TLC27L4BCNS?
All TLC27L4BCNS units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4BCNS, 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 TLC27L4BCNS part is unused and in its original packaging.
Return procedure for TLC27L4BCNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L4BCNS Tags
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