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Texas Instruments TLC27L4BCN
- Part No.:
- TLC27L4BCN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC27L4BCN.pdf
- Description:
- IC CMOS 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,961
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Product details
Overview
TLC27L4BCN from Texas Instruments is a precision quad operational amplifier in PDIP-14 package, featuring 2 mV max input offset voltage (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–70°C and supports single-supply sensor signal conditioning in battery-powered field transmitters.
For engineers reviewing the TLC27L4BCN datasheet, TLC27L4BCN pinout, TLC27L4BCN application, or TLC27L4BCN equivalent, this page delivers verified specifications, validated pin functions, confirmed industrial sensing use cases, and two technically documented alternative op-amps with explicit performance trade-offs.
Technical Context
The TLC27L4BCN uses TI's LinCMOS™ process to achieve 10¹² Ω typical input impedance and sub-picoampere input bias current (0.6 pA typ at 25°C), enabling high-impedance transducer interfacing without loading error. Its common-mode input range extends 0.2 V below ground, supporting true single-supply operation with inputs referenced to GND.
It delivers 85 kHz unity-gain bandwidth and 0.03 V/µs slew rate at 5 V supply, optimized for low-frequency precision amplification-not high-speed signal processing. Phase margin remains stable at 34° (25°C), ensuring robust stability with capacitive loads up to 20 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 2 mV max at 25°C - enables accurate DC-coupled amplification of µV-level sensor outputs without nulling circuitry |
| Supply Current (4 amps) | 68 µA max at 25°C - supports multi-year battery life in remote 4–20 mA loop-powered transmitters |
| Input Impedance | 10¹² Ω typical - prevents loading of high-Z sources like pH electrodes or piezoresistive bridges |
| Common-Mode Range | Extends to –0.2 V below GND - allows direct interface to ground-referenced sensors in single-supply systems |
| Output Swing | Includes negative rail (VOL ≤ 50 mV at 0 mA) - preserves full dynamic range when driving ADCs with GND-referenced references |
| Unity-Gain Bandwidth | 85 kHz at 5 V - sufficient for anti-alias filtering and analog signal conditioning up to ~10 kHz |
| ESD Rating | 2000 V HBM - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
Package: PDIP-14 (Plastic Dual In-line Package, 14-pin, 0.3-inch width). Through-hole mounting compatible with legacy PCB assembly and prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (per channel) | Accepts high-impedance sensor signals; common-mode range includes GND for single-supply biasing |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (per channel) | Supports standard inverting gain configurations; matched to noninverting inputs for CMRR > 65 dB |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (per channel) | Rail-to-rail swing down to GND enables full utilization of 0–5 V ADC input ranges |
| VDD (Pin 4) | Positive supply | Accepts 3–16 V; internal regulation not required - simplifies power design in multi-voltage systems |
| GND (Pin 11) | Ground reference | Shared return for all four amplifiers; decoupling capacitor placement critical for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input offset drift | 0.1 µV/month - ensures long-term calibration stability in unattended environmental monitoring equipment |
| Single-supply optimized architecture | Input common-mode range extends below GND and output swings to GND - eliminates need for dual supplies in portable instrumentation |
| LinCMOS™ process technology | 10¹² Ω input impedance + sub-pA bias current - preserves signal integrity from high-output-impedance sensors (e.g., thermistors, strain gauges) |
| Latch-up immunity | Designed-in protection per JEDEC JESD78 - prevents catastrophic failure during power sequencing or ESD events |
| ESD protection | 2000 V HBM per MIL-STD-883C Method 3015.2 - reduces board-level protection component count in industrial I/O modules |
Applications
| Pressure Transmitter | Temperature Transmitter |
|---|---|
Use Scenario: Amplifying mV-level output from silicon piezoresistive pressure sensors in 4–20 mA loop-powered field devices. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and offset correction. Use Value: 2 mV VIO max and 0.1 µV/month drift maintain ±0.1% FS accuracy over 5-year deployment without recalibration. |
Use Scenario: Conditioning output from Pt100 RTD bridges in HVAC control panels operating from 5 V rails. IC Role / Device Role / Timing Role: Low-power, rail-to-rail input/output op-amp in 3-op-amp instrumentation amplifier topology. Use Value: Sub-pA bias current prevents self-heating errors in high-resistance RTD measurements; 195 µW total quiescent power extends system battery life. |
| Smoke Detector Signal Chain | Level Transmitter Interface |
Use Scenario: Amplifying weak photocurrent signals from ionization chambers in residential smoke alarms powered by 9 V batteries. IC Role / Device Role / Timing Role: Ultra-low-power transimpedance amplifier with adjustable gain and offset trimming. Use Value: 68 µA max supply current per quad device enables >10-year standby operation; ESD-hardened inputs withstand handling during manufacturing. |
Use Scenario: Signal conditioning for ultrasonic or capacitance-based liquid level sensors in tank monitoring systems. IC Role / Device Role / Timing Role: Single-supply buffer and filter stage preceding SAR ADC in isolated analog input modules. Use Value: Common-mode input range extending below GND allows direct connection to floating sensor outputs without level-shifting circuitry. |
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 |
|---|---|---|---|
| TLC27L4ACN | 5 mV max VIO (vs. 2 mV); otherwise identical specs, pinout, and package | Suitable where ±0.5% gain error tolerance permits higher offset; lower cost tier within same family | Select TLC27L4ACN only if system-level calibration can absorb 3× higher initial offset; no layout change required |
| TLV2464CDR | Rail-to-rail I/O, 600 µA/ch supply current, 2.5 V–6 V operation only - no 16 V support | Better AC performance (1.5 MHz GBW) but incompatible with 12 V/15 V industrial supplies and higher-voltage sensor excitation | Choose TLV2464CDR only for new 3.3 V/5 V designs requiring faster settling; not drop-in for existing TLC27L4BCN layouts |
Compared with TLC27L4ACN, the TLC27L4BCN provides tighter initial offset for uncalibrated sensor front-ends; compared with TLV2464CDR, it supports wider supply range and lower power but trades off bandwidth-making it optimal for static or low-frequency industrial measurement, not dynamic signal acquisition.
Availability
TLC27L4BCN is available at Aetrix Electronics and suitable for pressure transmitter design, temperature transmitter calibration, and smoke detector signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for TLC27L4BCN 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 and industrial-grade reliability.
The TLC27Lx family was designed specifically for low-power, high-accuracy sensor signal conditioning in battery-operated and loop-powered industrial field instruments-emphasizing offset stability, rail-to-rail operation, and robustness in harsh environments.
FAQ
What is the maximum operating temperature range for the TLC27L4BCN?
The TLC27L4BCN is characterized for operation from 0°C to +70°C (C-suffix grade). It supports supply voltages from 3 V to 16 V within this range. Operation outside this temperature window is not guaranteed per datasheet specifications, and parameters such as input offset voltage drift and supply current may exceed published limits.
Does the TLC27L4BCN support true rail-to-rail input operation?
The TLC27L4BCN does not provide full rail-to-rail input common-mode range. Its common-mode input voltage extends to –0.2 V below GND and up to 3.5 V (at VDD = 5 V) or 8.5 V (at VDD = 10 V), meaning it accepts inputs below ground but not up to VDD. This supports single-supply operation with ground-referenced sensors but requires external level shifting for VDD-referenced signals.
Can the TLC27L4BCN drive a 10 kΩ load while maintaining specified output swing?
Yes - the TLC27L4BCN guarantees low-level output voltage ≤ 50 mV and high-level output voltage ≥ 3.2 V (at VDD = 5 V, 25°C) into a 1 MΩ load. While not explicitly tested at 10 kΩ in the datasheet, its ±30 mA output current capability and demonstrated performance into 1 MΩ confirm robust drive strength well beyond 10 kΩ, with minimal degradation in VOL/VOH.
Is the TLC27L4BCN pin-compatible with other TLC27Lx variants in PDIP-14?
Yes - all TLC27Lx quad op-amps (including TLC27L4, TLC27L4A, TLC27L4B, TLC27L9) share identical PDIP-14 pinout and electrical interface. The TLC27L4BCN can be substituted for any C-suffix PDIP variant without PCB modification, though system-level performance (e.g., offset, drift, bandwidth) will reflect the specific grade installed.
What packaging options are available for the TLC27L4BCN?
The TLC27L4BCN is offered exclusively in the N (PDIP-14) package - a through-hole plastic dual in-line package with 0.3-inch body width and standard 0.1-inch pin pitch. It is not available in SOIC, TSSOP, or SOP variants; those packages carry different suffixes (e.g., TLC27L4BCD for SOIC).
TLC27L4BCN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLC27L4BCN FAQ
1.How can I place an order for TLC27L4BCN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4BCN 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 TLC27L4BCN reliable?
The price and inventory of TLC27L4BCN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4BCN is usually 5 days.
3.What payment methods are accepted for TLC27L4BCN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4BCN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4BCN?
TLC27L4BCN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4BCN 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 TLC27L4BCN?
For technical support, including TLC27L4BCN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4BCN requirements.
6.How does Aetrix verify that TLC27L4BCN is sourced from the original manufacturer or authorized distributors?
All TLC27L4BCN 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 TLC27L4BCN meets industry standards.
7.What is the process for return or replacement of TLC27L4BCN?
All TLC27L4BCN units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4BCN, 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 TLC27L4BCN part is unused and in its original packaging.
Return procedure for TLC27L4BCN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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