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Texas Instruments TLC27M4BCN
- Part No.:
- TLC27M4BCN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC27M4BCN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:114
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Product details
Overview
TLC27M4BCN from Texas Instruments is a LinCMOS™ precision quad operational amplifier optimized for low-power, rail-to-rail output (negative rail inclusive), high-input-impedance analog signal conditioning in industrial and test equipment. It delivers ±300 µV max input offset voltage at 25°C, ±0.6 µV/°C drift, 32 nV/√Hz input noise at 1 kHz, and operates from 4 V to 16 V across –40°C to 85°C.
For engineers reviewing the TLC27M4BCN datasheet, TLC27M4BCN pinout, TLC27M4BCN application, or TLC27M4BCN equivalent, this device is selected for precision sensor interfacing, multiplexed data acquisition, and analog I/O modules where low quiescent current (120 µA typ. per two amps), ESD protection, and latch-up immunity are critical.
Technical Context
The TLC27M4BCN implements a CMOS input stage with 6 TΩ typical input impedance and picoamp-level bias currents, enabling high-gain, high-source-impedance configurations without significant error. Its trimmed offset voltage and low temperature coefficient support stable DC-coupled amplification over extended temperature ranges.
It features rail-inclusive common-mode input range (–0.2 V to VDD–1.5 V) and rail-swinging output capability down to the negative supply rail, making it suitable for single-supply systems. The device maintains 1.1 MHz unity-gain bandwidth and 0.5 V/µs slew rate under 5 V operation with 10 kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±300 µV max at 25°C, VDD = 5 V - enables <1 mV total error in 10× gain stages without trimming |
| Offset Drift | ±0.6 µV/°C - ensures <1.2 µV drift over 2°C ambient change, critical for long-term calibration stability |
| Input Noise Density | 32 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level sensor signals |
| Supply Current | 120 µA typical per two amplifiers at 25°C, VDD = 5 V - allows four-channel operation below 500 µA total |
| Common-Mode Range | –0.2 V to 3.5 V at VDD = 5 V - accepts inputs below ground, simplifying bipolar signal handling in single-supply designs |
| Output Swing | Includes negative rail - drives loads directly to GND without level-shifting circuitry |
| Unity-Gain Bandwidth | 1.1 MHz - supports stable closed-loop operation up to ~100 kHz with moderate gain |
Pinout & Package
Package: PDIP-14 (Plastic Dual In-line Package), 19.3 mm × 6.35 mm, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives external load or feedback network; rail-to-rail capable |
| 2 | IN1– | Inverting input of Amp 1 - high-impedance node (6 TΩ); sensitive to PCB leakage and guarding |
| 3 | IN1+ | Non-inverting input of Amp 1 - same impedance as IN1–; used for reference or sensor connection |
| 4 | VDD | Positive power supply - accepts 4 V to 16 V; decoupling capacitor required near pin |
| 5 | IN2+ | Non-inverting input of Amp 2 - independent channel; shares no internal nodes with Amp 1 |
| 6 | IN2– | Inverting input of Amp 2 - isolated for multi-channel signal routing without crosstalk |
| 7 | OUT2 | Amplifier 2 output - electrically isolated; supports independent gain/feedback per channel |
| 8 | OUT3 | Amplifier 3 output - third independent output; enables 3-channel parallel processing |
| 9 | IN3– | Inverting input of Amp 3 - matches IN1–/IN2– electrical characteristics |
| 10 | IN3+ | Non-inverting input of Amp 3 - identical input structure to other channels |
| 11 | GND | Ground / negative supply - return path for all four amplifiers; must be low-impedance |
| 12 | IN4+ | Non-inverting input of Amp 4 - fourth independent input; supports full quad functionality |
| 13 | IN4– | Inverting input of Amp 4 - fully differential-capable when paired with IN4+ |
| 14 | OUT4 | Amplifier 4 output - completes quad configuration; usable for summing, filtering, or buffering |
Key Features
| Feature | Design Value |
|---|---|
| Trimmed input offset voltage | ±300 µV max (25°C) - reduces need for external nulling in precision instrumentation |
| Low input bias current | ±10 pA typical (25°C) - minimizes voltage error across high-value feedback resistors (>1 MΩ) |
| Rail-inclusive output swing | Drives to GND - eliminates need for negative supply in single-rail sensor front-ends |
| ESD protection circuitry | Integrated HBM >2 kV - improves robustness during board handling and system integration |
| Latch-up immunity | Designed-in - prevents destructive failure during overvoltage transients on inputs or supplies |
Applications
| Programmable Logic Controllers | Multiplexed Data-Acquisition Systems |
|---|---|
Use Scenario: Analog input modules condition 4–20 mA or ±10 V field signals before ADC sampling in PLC backplanes. IC Role / Device Role / Timing Role: Precision buffer and gain stage for multiple sensor channels; rejects common-mode noise from industrial environments. Use Value: ±300 µV offset and ±0.6 µV/°C drift ensure <0.01% FS error stability over temperature, meeting IEC 61000-4-5 surge immunity requirements. |
Use Scenario: High-channel-count DAQ systems switch between thermocouples, RTDs, and strain gauges using analog multiplexers. IC Role / Device Role / Timing Role: Pre-amplifier and filter driver placed immediately after mux to minimize settling time and crosstalk. Use Value: 6 TΩ input impedance prevents loading of high-Z sensors; 32 nV/√Hz noise preserves SNR in µV-range measurements. |
| Test and Measurement Equipment | Analog Input/Output Modules |
Use Scenario: Benchtop multimeters and source-measure units require stable, low-drift amplification for voltage/current measurement paths. IC Role / Device Role / Timing Role: Front-end gain block in autoranging voltmeter circuits; provides programmable gain via external resistors. Use Value: Low 120 µA supply current per two amps enables thermal management in compact enclosures; ESD protection guards against user interface transients. |
Use Scenario: Industrial I/O cards convert field signals to digital for DCS or SCADA systems, often operating in harsh cabinets. IC Role / Device Role / Timing Role: Signal conditioner for 0–10 V, ±5 V, or 4–20 mA loops; interfaces to isolation barriers and ADC drivers. Use Value: –40°C to 85°C operating range and latch-up immunity ensure reliability in uncontrolled cabinet environments with wide thermal swings. |
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 |
|---|---|---|---|
| TLC27M4ACN | ±500 µV max input offset (vs. ±300 µV for TLC27M4BCN); otherwise identical pinout, package, and specs | Suitable where tighter offset is not required; lower cost tier for less demanding DC accuracy | Select TLC27M4ACN if system-level offset budget allows ≥0.5 mV error at room temperature |
| TLC27M4CN | ±1000 µV max input offset; higher drift (±1.5 µV/°C); same package and supply range | Targeted at general-purpose amplification where cost is primary; not recommended for precision sensor front-ends | Choose TLC27M4CN only for non-critical signal conditioning where calibration is performed externally |
Compared with TLC27M4ACN and TLC27M4CN, the TLC27M4BCN offers the best offset performance in the TLC27M4 family-critical for uncalibrated, wide-temperature industrial systems-while maintaining identical footprint, supply compatibility, and layout reuse.
Availability
TLC27M4BCN is available at Aetrix Electronics and suitable for programmable logic controllers, multiplexed data-acquisition systems, and analog input/output modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC27M4BCN 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 ICs.
The TLC27Mxx family was designed specifically for high-accuracy, low-power analog signal conditioning in industrial automation, test equipment, and process control-emphasizing offset stability, input impedance, and ruggedness over speed.
FAQ
What is the maximum operating temperature range for the TLC27M4BCN?
The TLC27M4BCN is rated for operation from –40°C to +85°C. This industrial temperature grade is confirmed in Table 4-1 and Section 6.3 of the datasheet, and applies specifically to the 'I' suffix variants like TLC27M4BCN. It supports reliable performance in control cabinets, factory floors, and outdoor instrumentation enclosures without derating.
Does the TLC27M4BCN support single-supply operation?
Yes, the TLC27M4BCN supports true single-supply operation from 4 V to 16 V. Its common-mode input range extends to –0.2 V (below ground) and its output swings to the negative rail (GND), enabling direct interfacing with sensors and ADCs in 5 V or 12 V systems without dual supplies.
What is the input bias current specification for the TLC27M4BCN at 25°C?
The TLC27M4BCN has a typical input bias current of ±10 pA at 25°C, with a maximum of ±60 pA (Table 6.4). This ultra-low value stems from its LinCMOS™ input stage and enables use with high-impedance sources such as piezoelectric sensors, photodiodes, and megohm-level potentiometers without significant error.
Is the TLC27M4BCN pin-compatible with other devices in the TLC27M4 family?
Yes, the TLC27M4BCN is fully pin-compatible with all PDIP-14 variants in the TLC27M4 series-including TLC27M4CN, TLC27M4ACN, and TLC27M4M CN-sharing identical pinout, footprint, and supply connections. This allows drop-in replacement within the same package variant for offset grade upgrades or cost optimization.
What packaging options are available for the TLC27M4BCN?
The TLC27M4BCN is offered exclusively in the PDIP-14 (N) package: 19.3 mm × 6.35 mm, through-hole mounting. Per Table 3-1 and Section 11, no SOIC, TSSOP, or SOP variants exist for the 'B' grade with 'C' or 'I' temperature suffixes in PDIP; the N package is the only orderable option for TLC27M4BCN.
TLC27M4BCN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.62V/µs
- Gain Bandwidth Product:
- 525 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 260 µV
- Current - Supply:
- 570µA (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
TLC27M4BCN FAQ
1.How can I place an order for TLC27M4BCN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27M4BCN 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 TLC27M4BCN reliable?
The price and inventory of TLC27M4BCN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27M4BCN is usually 5 days.
3.What payment methods are accepted for TLC27M4BCN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27M4BCN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27M4BCN?
TLC27M4BCN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27M4BCN 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 TLC27M4BCN?
For technical support, including TLC27M4BCN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27M4BCN requirements.
6.How does Aetrix verify that TLC27M4BCN is sourced from the original manufacturer or authorized distributors?
All TLC27M4BCN 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 TLC27M4BCN meets industry standards.
7.What is the process for return or replacement of TLC27M4BCN?
All TLC27M4BCN units undergo pre-shipment inspection (PSI). If there is an issue with TLC27M4BCN, 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 TLC27M4BCN part is unused and in its original packaging.
Return procedure for TLC27M4BCN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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