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Texas Instruments TLC25M4BCN
- Part No.:
- TLC25M4BCN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC25M4BCN.pdf
- Description:
- IC CMOS 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,330
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Product details
Overview
TLC25M4BCN from Texas Instruments is a LinCMOS™ quad operational amplifier optimized for medium-bias, low-power, single-supply operation. It delivers 2-mV max input offset voltage (at 25°C), 420–1120 µA typical supply current (four amplifiers, VDD = 5 V), 0.43 V/µs slew rate, and rail-to-rail common-mode input range extending to the negative rail - enabling precision signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLC25M4BCN datasheet, TLC25M4BCN pinout, TLC25M4BCN application, or TLC25M4BCN equivalent, key selection criteria include its 2-mV VIO grade, 1.4–16 V wide supply range, ultra-low input bias current (≤60 pA), and compatibility with high-impedance transducer front-ends requiring minimal offset drift and energy efficiency.
Technical Context
The TLC25M4BCN implements a silicon-gate LinCMOS™ process architecture, delivering stable input-offset voltages with selectable grades (2 mV max for 'B' suffix), extremely high input impedance (>1012 Ω), and sub-picoampere input bias/offset currents. Its internal ESD protection meets MIL-STD-883C, Method 3015.1 (2000 V).
Designed for true single-supply operation, it supports common-mode input down to VDD–/GND and provides output swing limited only by load and supply - with unity-gain stability and noise performance of 32 nV/√Hz at 1 kHz (VDD = 5 V, RL = 100 kΩ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4 V to 16 V - enables direct use with single alkaline, Li-ion, or solar-cell sources without regulation. |
| Input Offset Voltage (Max) | 2 mV at 25°C - ensures ≤2 mV DC error in precision gain stages and active filter DC offsets. |
| Supply Current (Typ) | 420–1120 µA (four amps, VDD = 5 V) - balances speed and power for always-on sensor nodes. |
| Slew Rate (Typ) | 0.43 V/µs at VDD = 5 V - supports ~525 kHz unity-gain bandwidth for moderate-speed signal buffering. |
| Input Bias Current (Typ) | 0.6–60 pA - preserves accuracy in >1 MΩ feedback networks and high-Z pH/thermocouple interfaces. |
| Common-Mode Input Range | Includes VDD–/GND - allows direct sensing of ground-referenced signals without level-shifting circuitry. |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded systems and industrial control panels. |
Pinout & Package
Package: 14-pin plastic DIP (N package), through-hole mountable, JEDEC MS-001 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Amplifier 1 output | Drives external load; rail-to-rail swing capability depends on supply and load conditions. |
| 1IN– | Amplifier 1 inverting input | Differential node for feedback configuration; high-impedance input minimizes loading. |
| 1IN+ | Amplifier 1 non-inverting input | Accepts reference or sensor signal; common-mode range includes GND for single-supply use. |
| VDD | Positive supply rail | Single positive supply connection; supports 1.4–16 V; no separate VDD– required for basic operation. |
| 2IN+ | Amplifier 2 non-inverting input | Independent high-Z input for second channel; identical electrical specs to Pin 1IN+. |
| 2IN– | Amplifier 2 inverting input | Configurable for differential, inverting, or integrator topologies with matched offset performance. |
| 2OUT | Amplifier 2 output | Provides second independent buffered output; shares same supply and thermal environment as other amps. |
| 4OUT | Amplifier 4 output | Final channel output; pin 14 is not internally connected to chip backside per bonding diagram. |
| 4IN– | Amplifier 4 inverting input | Enables four-channel parallel processing (e.g., multi-sensor signal conditioning). |
| 4IN+ | Amplifier 4 non-inverting input | Supports simultaneous analog front-end scaling across four independent signal paths. |
| VDD–/GND | Ground reference / negative rail | Return path for all four amplifiers; serves as common-mode baseline and output swing lower limit. |
| 3IN+ | Amplifier 3 non-inverting input | Third channel input; electrically isolated from others but thermally coupled on shared die. |
| 3OUT | Amplifier 3 output | Third independent output; usable for cascaded gain stages or multi-stage filtering. |
Key Features
| Feature | Design Value |
|---|---|
| 2-mV max input offset voltage ('B' grade) | Reduces DC error in precision instrumentation amplifiers and low-frequency active filters without trimming. |
| True single-supply operation (1.4 V min) | Eliminates need for dual supplies or charge pumps in portable medical devices and IoT edge sensors. |
| Input common-mode range includes GND | Allows direct interfacing with ground-referenced transducers (e.g., strain gauges, thermistors) without biasing resistors. |
| Ultra-low input bias current (≤60 pA) | Maintains gain accuracy in high-value RC networks used in 1/f noise-limited sensor signal chains. |
| LinCMOS™ process technology | Delivers stable offset over time (<0.1 µV/month drift) and temperature (1.7 µV/°C typ), critical for unattended monitoring. |
Applications
| Portable Gas Sensor Front-End | Low-Power pH Meter Analog Stage |
|---|---|
|
Use Scenario: Electrochemical gas sensor (e.g., CO, NO₂) with microamp-level output current feeding a transimpedance amplifier. IC Role / Device Role / Timing Role: Quad TLC25M4BCN configures one amp as TIA, two as buffer/gain stages, and one as reference voltage follower. Use Value: 2-mV VIO ensures <±2 mV baseline error in calibrated ppm readings; 0.6 pA IIB prevents leakage-induced drift in high-R feedback paths. |
Use Scenario: Glass electrode pH probe with high-output impedance (>100 MΩ) connected to handheld meter. IC Role / Device Role / Timing Role: First amplifier buffers electrode signal; second performs offset compensation; third drives ADC reference; fourth handles temperature compensation. Use Value: Rail-to-rail input enables direct GND-referenced measurement; 1.4-V operation extends battery life in AA-powered field instruments. |
| Solar-Powered Environmental Logger | Industrial Thermocouple Signal Conditioner |
|
Use Scenario: Remote weather station powered by small solar panel + supercapacitor, measuring temperature/humidity/pressure. IC Role / Device Role / Timing Role: Four independent channels condition each sensor's analog output prior to multiplexed ADC sampling. Use Value: 420 µA total quiescent current (VDD = 1.4 V) enables multi-day operation during low-light periods; ESD-hardened inputs survive outdoor handling. |
Use Scenario: K-type thermocouple interface in factory automation PLC module, requiring cold-junction compensation and linearization. IC Role / Device Role / Timing Role: One amp buffers thermocouple; one amplifies RTD signal for CJC; two implement programmable gain and filtering. Use Value: 2-mV VIO limits temperature error to <±0.1°C in 0–100°C range; 16-V max supply accommodates industrial 12-V rails with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC25L4BCN | Lower supply current (40–92 µA), slower slew rate (0.03 V/µs), higher input impedance (>1 TΩ), same 2-mV VIO grade. | Better suited for ultra-low-power, low-bandwidth applications (e.g., soil moisture sensors), less ideal for >10 kHz signal paths. | Select TLC25L4BCN when power budget is <100 µA and bandwidth needs are <100 kHz; TLC25M4BCN preferred for faster settling or driving 100-kΩ loads. |
| TLC25M4ACN | 5-mV VIO (vs. 2-mV), otherwise identical bias, noise, and speed characteristics; same package and pinout. | Acceptable where ±5 mV offset contributes <±0.25°C error in temperature sensing or <±0.5% FSR in 12-bit systems. | Choose TLC25M4ACN for cost-sensitive designs where tighter offset isn't required; TLC25M4BCN remains optimal for calibrated metrology-grade circuits. |
Compared with TLC25L4BCN, the TLC25M4BCN trades 10× higher supply current for >10× greater slew rate and unity-gain bandwidth - making it suitable for dynamic signal acquisition. Against TLC25M4ACN, it delivers 2.5× lower offset error without sacrificing speed or power, justifying its use in closed-loop control or precision data logging.
Availability
TLC25M4BCN is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered environmental monitors, and industrial sensor signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for TLC25M4BCN 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 expertise in precision op-amps and low-power design.
The TLC25M4BCN belongs to TI's LinCMOS™ quad op-amp family, engineered specifically for single-supply, low-voltage, low-power applications in portable and energy-constrained systems - emphasizing offset stability, input impedance, and supply flexibility.
FAQ
What is the maximum supply voltage rating for the TLC25M4BCN?
The TLC25M4BCN has an absolute maximum supply voltage of 18 V, though its recommended operating range is 1.4 V to 16 V. Operation above 16 V risks parametric degradation or reliability loss, even if within absolute ratings - always maintain VDD ≤ 16 V for guaranteed performance per the SLOS003G datasheet.
Does the TLC25M4BCN support rail-to-rail output swing?
No - the TLC25M4BCN does not feature rail-to-rail output. Its output swing is load-dependent and typically reaches within ~0.5 V of VDD and ~0.05 V above GND under light loads (e.g., RL = 100 kΩ). The datasheet specifies VOL ≤ 50 mV and VOH ≥ 3.2 V at VDD = 5 V, confirming limited headroom at both rails.
Can the TLC25M4BCN operate from a 1.5-V alkaline battery without regulation?
Yes - the TLC25M4BCN is fully specified down to 1.4 V and functions reliably across the full 1.4–16 V range. At 1.5 V, it draws ~340 µA (typical, four amps), maintains 2-mV VIO grade, and supports common-mode input down to GND, making it ideal for direct battery coupling in compact, low-cost portable devices.
How does the input offset voltage of TLC25M4BCN vary with temperature?
The TLC25M4BCN exhibits an average input offset voltage temperature coefficient of 1.7 µV/°C (typical, 25°C to 70°C). Over the full 0°C to 70°C range, its max VIO increases from 2 mV (25°C) to 3 mV (full range), ensuring predictable drift behavior for calibration-aware designs.
Is the TLC25M4BCN pin-compatible with other members of the TLC25x4 family?
Yes - all TLC25x4 variants (TLC254x, TLC25L4x, TLC25M4x) in the 14-pin N package share identical pinouts and footprints. This allows drop-in substitution between grades (e.g., TLC25M4ACN → TLC25M4BCN) or bias classes (e.g., TLC25L4BCN → TLC25M4BCN) without PCB changes, provided layout accommodates differing thermal and noise requirements.
TLC25M4BCN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Open Drain
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 340 µV
- Current - Supply:
- 2.7mA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLC25M4BCN FAQ
1.How can I place an order for TLC25M4BCN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC25M4BCN 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 TLC25M4BCN reliable?
The price and inventory of TLC25M4BCN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC25M4BCN is usually 5 days.
3.What payment methods are accepted for TLC25M4BCN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC25M4BCN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC25M4BCN?
TLC25M4BCN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC25M4BCN 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 TLC25M4BCN?
For technical support, including TLC25M4BCN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC25M4BCN requirements.
6.How does Aetrix verify that TLC25M4BCN is sourced from the original manufacturer or authorized distributors?
All TLC25M4BCN 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 TLC25M4BCN meets industry standards.
7.What is the process for return or replacement of TLC25M4BCN?
All TLC25M4BCN units undergo pre-shipment inspection (PSI). If there is an issue with TLC25M4BCN, 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 TLC25M4BCN part is unused and in its original packaging.
Return procedure for TLC25M4BCN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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