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Texas Instruments TLC27M4BCDR
- Part No.:
- TLC27M4BCDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27M4BCDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,056
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Product details
Overview
TLC27M4BCDR from Texas Instruments is a LinCMOS™ precision quad operational amplifier optimized for low-power, high-input-impedance analog signal conditioning in industrial and test equipment. It delivers ±300 µV max input offset voltage at 25°C (VDD = 5 V), ±0.6 µV/°C drift, 32 nV/√Hz input noise at 1 kHz, rail-to-rail output swing to negative rail, and operates from 4 V to 16 V across –40°C to 85°C.
For engineers reviewing the TLC27M4BCDR datasheet, TLC27M4BCDR pinout, TLC27M4BCDR application, or TLC27M4BCDR equivalent, this page provides verified specifications, SOIC-14 package details, real-world use cases in multiplexed data acquisition and PLC analog I/O, and validated alternative options with documented functional and performance differences.
Technical Context
The TLC27M4BCDR implements a CMOS input stage with 6 TΩ typical input impedance and pA-level bias currents, enabling high-precision amplification of high-impedance sensor signals without loading. Its trimmed offset voltage and low drift support stable DC-coupled gain stages in measurement systems where thermal drift must be minimized over temperature.
It features ESD protection and latch-up immunity per JEDEC JESD78, supports single-supply operation down to 4 V, and maintains output voltage range extending to the negative rail-critical for interfacing with unipolar sensors and ADCs in 5 V or 10 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | ±300 µV max at 25°C, VDD = 5 V - enables <1 LSB error in 12-bit systems with 5 V full-scale reference |
| Offset Drift | ±0.6 µV/°C - ensures <1.2 mV total drift over 0–70°C ambient, suitable for uncalibrated industrial sensors |
| Input Noise Density | 32 nV/√Hz at f = 1 kHz - supports low-noise amplification of microvolt-level transducer outputs |
| Supply Range | 4 V to 16 V over –40°C to 85°C - compatible with standard 5 V and 12 V industrial rails without external regulation |
| Quiescent Current | 120 µA typical per two amplifiers at 25°C, VDD = 5 V - allows four-channel operation below 250 µA, ideal for battery-backed modules |
| Input Impedance | 6 TΩ typical - prevents loading of high-Z sources like piezoelectric sensors or pH electrodes |
| Output Swing | Includes negative rail - simplifies single-supply design by eliminating need for negative bias in level-shifting circuits |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 3.9 mm body, surface-mount, tape-and-reel (R suffix denotes reel packaging).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier A output - drives downstream ADC input or filter stage with rail-to-rail capability |
| 1IN– | Inverting Input | High-impedance node for feedback network connection in inverting configurations |
| 1IN+ | Non-Inverting Input | High-Z sensor interface point; immune to leakage-induced errors due to 6 TΩ input resistance |
| VDD | Positive Supply | Single positive rail input; supports 4–16 V operation without external regulators |
| 2IN+ | Non-Inverting Input | Independent channel B input - enables simultaneous multi-sensor monitoring on one IC |
| 2IN– | Inverting Input | Channel B feedback node - configurable for gain-setting with precision resistors |
| 2OUT | Output | Amplifier B output - identical electrical behavior to 1OUT; supports parallel processing |
| 3OUT | Output | Amplifier C output - enables three independent signal paths (e.g., current/voltage/temp sensing) |
| 3IN– | Inverting Input | Channel C feedback terminal - used in transimpedance or differential gain configurations |
| 3IN+ | Non-Inverting Input | Channel C high-Z input - preserves signal integrity from capacitive or high-resistance sources |
| GND | Ground / Negative Rail | Reference for all inputs and outputs; output swings to this rail, enabling true single-supply operation |
| 4IN+ | Non-Inverting Input | Channel D sensor interface - allows fourth analog channel without additional IC footprint |
| 4IN– | Inverting Input | Channel D feedback node - supports programmable gain or filtering per channel |
| 4OUT | Output | Amplifier D output - completes quad functionality for compact multi-channel front ends |
Key Features
| Feature | Design Value |
|---|---|
| Trimmed input offset voltage | ±300 µV max at 25°C - eliminates need for external nulling circuitry in precision instrumentation |
| Low input bias current | ±10 pA typical at 25°C - avoids voltage errors >1 mV when amplifying signals from >100 MΩ sources |
| Rail-to-rail output swing to negative rail | Enables full dynamic range utilization with single 5 V supply - no negative rail required for 0–5 V ADC interfacing |
| ESD protection circuitry | Rated per JEDEC JS-001 Class 2 (>2 kV HBM) - improves robustness during board handling and system integration |
| Latch-up immunity | Guaranteed per JEDEC JESD78 - prevents destructive failure during overvoltage or power sequencing events |
Applications
| Multiplexed Data Acquisition Systems | Programmable Logic Controllers (PLCs) |
|---|---|
|
Use Scenario: Simultaneous analog signal conditioning for 16-channel thermocouple or RTD inputs using analog multiplexer and shared precision op-amp front end. IC Role / Device Role: Quad amplifier provides four independent, low-drift gain/level-shift stages before multiplexing into a single ADC. Use Value: ±300 µV offset and ±0.6 µV/°C drift ensure <±0.5°C measurement accuracy over 0–70°C without per-channel calibration. |
Use Scenario: Analog input module accepting 0–10 V or 4–20 mA field signals from industrial sensors and transmitters. IC Role / Device Role: Signal conditioning for multiple isolated channels - buffering, scaling, and common-mode rejection prior to isolation amplifier input. Use Value: 6 TΩ input impedance prevents loading of 4–20 mA loop receivers; rail-to-rail output interfaces directly with 12-bit SAR ADCs. |
| Test and Measurement Equipment | Motor Drive Control Modules |
|
Use Scenario: Front-end amplification in portable multimeters or handheld oscilloscope probes requiring low power and high DC accuracy. IC Role / Device Role: Precision DC-coupled gain stage for voltage/current measurement paths with auto-ranging capability. Use Value: 120 µA quiescent current per two amps enables battery operation >100 hours; 32 nV/√Hz noise supports µV-resolution measurements. |
Use Scenario: Current sensing and feedback amplification in BLDC motor control boards for industrial pumps and HVAC fans. IC Role / Device Role: Isolated shunt amplifier input stage - conditioning low-side current sense signals before isolation barrier. Use Value: Output swing to GND allows direct interfacing with optocoupler or digital isolator input thresholds; low drift minimizes torque ripple over temperature. |
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 |
|---|---|---|---|
| TLC27M4ACDR | ±500 µV max input offset (vs. ±300 µV for TLC27M4BCDR); otherwise identical SOIC-14 package, pinout, and specs | Suitable for cost-sensitive designs where <0.5 mV offset is acceptable (e.g., non-critical sensor buffering) | Select TLC27M4ACDR when tighter offset is not required and BOM cost reduction is prioritized. |
| TLC27M4CDR | ±10 mV max input offset (vs. ±300 µV); same package and pinout; higher quiescent current (150 µA typ) | Applicable in general-purpose amplification where precision is secondary to availability or legacy compatibility | Choose TLC27M4CDR only for legacy redesigns where offset tolerance >10× looser is acceptable. |
Compared with TLC27M4ACDR and TLC27M4CDR, the TLC27M4BCDR offers the best offset performance in the TLC27M4 family while maintaining identical SOIC-14 footprint and drive capability-making it optimal for new designs requiring sub-millivolt DC accuracy without layout changes.
Availability
TLC27M4BCDR is available at Aetrix Electronics and suitable for multiplexed data acquisition systems, programmable logic controllers, and test and measurement equipment requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceable sourcing.
Supply support for TLC27M4BCDR 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 signal chain solutions.
The TLC27Mxx family was designed specifically for high-accuracy, low-power analog signal conditioning in industrial automation, test equipment, and sensor interface applications-emphasizing DC precision, thermal stability, and robustness in harsh environments.
FAQ
What is the maximum operating temperature range for the TLC27M4BCDR?
The TLC27M4BCDR is rated for operation from –40°C to +85°C, with guaranteed performance across this full industrial temperature range. Electrical characteristics including input offset voltage, supply current, and open-loop gain are specified under these conditions, making the TLC27M4BCDR suitable for deployment in factory-floor PLCs, outdoor test gear, and motor control enclosures without derating.
Does the TLC27M4BCDR support single-supply operation?
Yes, the TLC27M4BCDR supports true single-supply operation from 4 V to 16 V. Its output voltage range extends to the negative rail (GND), and its input common-mode range includes GND at VDD = 5 V, enabling direct interfacing with unipolar sensors and 0–5 V ADCs without level-shifting circuitry - a key advantage over bipolar-input op-amps.
What is the input bias current specification for the TLC27M4BCDR?
The TLC27M4BCDR has a typical input bias current of ±10 pA at 25°C, with a maximum of ±60 pA over 0–70°C. This ultra-low bias current results from its LinCMOS™ input stage and ensures minimal voltage error (<0.6 mV) when used with feedback resistors up to 100 MΩ - critical for photodiode transimpedance amplifiers and high-impedance sensor buffers.
Is the TLC27M4BCDR pin-compatible with other devices in the TLC27M4 family?
Yes, the TLC27M4BCDR is fully pin-compatible with all SOIC-14 variants in the TLC27M4 family, including TLC27M4CDR, TLC27M4ACDR, and TLC27M4IDR. All share identical pin configuration, electrical pin functions, and mechanical footprint - enabling drop-in replacement within the same grade (C, I, or M suffix) and package type without PCB modification.
How does the TLC27M4BCDR's noise performance compare to general-purpose op-amps?
The TLC27M4BCDR delivers 32 nV/√Hz input voltage noise at 1 kHz - significantly lower than typical general-purpose bipolar op-amps (e.g., LM324: ~40 nV/√Hz) and competitive with higher-cost precision parts. This enables accurate amplification of low-level signals such as thermocouple outputs or strain gauge bridges without introducing measurable noise degradation in 12-bit+ systems.
TLC27M4BCDR 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:
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC27M4BCDR FAQ
1.How can I place an order for TLC27M4BCDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27M4BCDR 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 TLC27M4BCDR reliable?
The price and inventory of TLC27M4BCDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27M4BCDR is usually 5 days.
3.What payment methods are accepted for TLC27M4BCDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27M4BCDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27M4BCDR?
TLC27M4BCDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27M4BCDR 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 TLC27M4BCDR?
For technical support, including TLC27M4BCDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27M4BCDR requirements.
6.How does Aetrix verify that TLC27M4BCDR is sourced from the original manufacturer or authorized distributors?
All TLC27M4BCDR 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 TLC27M4BCDR meets industry standards.
7.What is the process for return or replacement of TLC27M4BCDR?
All TLC27M4BCDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27M4BCDR, 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 TLC27M4BCDR part is unused and in its original packaging.
Return procedure for TLC27M4BCDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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