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Texas Instruments TLC25M4CD
- Part No.:
- TLC25M4CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC25M4CD.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,415
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Product details
Overview
TLC25M4CD from Texas Instruments is a LinCMOS™ quad operational amplifier optimized for medium-bias, low-power, single-supply operation. It delivers 420–1120 µA supply current (typ/max), 0.43 V/µs slew rate at 5 V, 525 kHz unity-gain bandwidth, and 2-mV max input offset voltage (B-grade). It operates from 1.4 V to 16 V and supports rail-to-rail common-mode input down to the negative rail-ideal for battery-powered sensor signal conditioning.
For engineers reviewing the TLC25M4CD datasheet, TLC25M4CD pinout, TLC25M4CD application, or TLC25M4CD equivalent, this page provides verified pin functions, real-world use cases in energy-constrained analog front-ends, key trade-offs versus low- and high-bias variants, and two validated alternative parts with documented parameter differences.
Technical Context
The TLC25M4CD uses Texas Instruments' silicon-gate LinCMOS™ process to achieve ultra-low input bias and offset currents (1 pA typ) while maintaining stable DC performance across temperature. Its internal ESD protection meets MIL-STD-883C, Method 3015.1 (2000 V).
It features true single-supply operation with common-mode input range extending to VDD–/GND, enabling direct interfacing with ground-referenced transducers. The device is unity-gain stable and characterized for 0°C to 70°C operation in the D (SOIC-14) package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4 V to 16 V - enables operation from single alkaline or Li-ion cells up to industrial rails |
| Input Offset Voltage (Max) | 2 mV - tight DC accuracy for precision gain stages and low-level signal amplification |
| Supply Current (Typ) | 600 µA per amplifier (2.4 mA total) - balances speed and power for portable instrumentation |
| Slew Rate (Typ) | 0.43 V/µs at VDD = 5 V - supports audio-band and moderate-speed sensor signal processing |
| Unity-Gain Bandwidth | 525 kHz - sufficient for anti-aliasing filters, active RC networks, and buffered references |
| Input Bias Current (Typ) | 1 pA - preserves signal integrity in high-impedance pH, photodiode, or piezoelectric sensor interfaces |
| Common-Mode Input Range | Includes VDD–/GND - allows direct connection of ground-referenced sensors without level-shifting |
Pinout & Package
Package: SOIC-14 (D package), surface-mount, tape-and-reel compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Channel 1 Output | Amplified output of first op-amp; drives loads up to 100 kΩ with rail-swing capability |
| 2 | Channel 1 Inverting Input | Inverts input signal; high-impedance node sensitive to PCB leakage and layout parasitics |
| 3 | Channel 1 Non-Inverting Input | Non-inverting input; used for unity-gain buffers or high-Z sensor connections |
| 4 | VDD | Positive supply rail; bypass capacitor (0.1 µF) required near pin for stability |
| 5 | Channel 2 Non-Inverting Input | Second op-amp's +IN; isolated from other channels except via shared supply and substrate |
| 6 | Channel 2 Inverting Input | Second op-amp's –IN; matches pin 2 electrical behavior and layout sensitivity |
| 7 | Channel 2 Output | Output of second op-amp; electrically identical to pin 1 |
| 8 | Channel 4 Output | Fourth op-amp output; pin 8 is not GND - critical to avoid misrouting |
| 9 | Channel 4 Inverting Input | Fourth op-amp's –IN; symmetric placement supports matched dual-differential designs |
| 10 | Channel 4 Non-Inverting Input | Fourth op-amp's +IN; enables independent configuration of all four amplifiers |
| 11 | VDD–/GND | Ground reference and negative supply rail; common return for all four amplifiers |
| 12 | Channel 3 Non-Inverting Input | Third op-amp's +IN; completes full quad channel access without external routing |
| 13 | Channel 3 Inverting Input | Third op-amp's –IN; supports independent feedback networks per channel |
| 14 | Channel 3 Output | Third op-amp output; completes full functional access to all four amplifiers |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ Process Technology | Enables 1 pA input bias current and sub-2 mV offset voltage without FET-level cost or complexity |
| True Single-Supply Operation | Eliminates need for split supplies in portable systems; supports 1.4 V minimum VDD |
| Rail-to-Rail Common-Mode Input | Accepts signals referenced to ground - simplifies sensor interface and reduces component count |
| Internal ESD Protection | Withstands 2000 V HBM per MIL-STD-883C - reduces need for external protection in field-deployed units |
| Unity-Gain Stability | Guaranteed stable with no external compensation - accelerates design of gain blocks and filters |
Applications
| Portable Gas Sensor Front-End | Low-Power Data Acquisition Channel |
|---|---|
Use Scenario: Amplifying microamp-level current from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: TLC25M4CD serves as transimpedance amplifier and buffer, converting sensor current to voltage while preserving low-offset accuracy. Use Value: 1 pA input bias avoids loading high-impedance sensor electrodes; 2-mV VIO ensures <±0.5% reading error over full scale. | Use Scenario: Signal conditioning stage in battery-operated environmental monitoring nodes measuring temperature, humidity, and light. IC Role / Device Role / Timing Role: TLC25M4CD configures as four independent gain/buffer stages - one per sensor - with shared VDD/GND. Use Value: 600 µA per amplifier enables >1-year battery life; rail-to-rail input accepts outputs from resistive and capacitive sensors directly. |
| Medical Pulse Oximetry Analog Path | Industrial 4–20 mA Loop Receiver |
Use Scenario: Amplifying weak, noisy photodiode signals in wearable pulse oximeters operating from 3.3 V LiPo cells. IC Role / Device Role / Timing Role: TLC25M4CD implements correlated double sampling (CDS) and synchronous demodulation pre-amplifier. Use Value: 70 nV/√Hz input noise at 1 kHz minimizes SNR degradation; 0.43 V/µs slew rate supports 100 Hz modulation without distortion. | Use Scenario: Converting 4–20 mA loop current to ground-referenced voltage in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: TLC25M4CD acts as precision I-to-V converter and output buffer driving ADC reference inputs. Use Value: 2-mV VIO ensures <0.1% full-scale error over temperature; common-mode input to GND eliminates level-shifter ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC25L4CD | Lower supply current (40 µA typ), slower slew rate (0.03 V/µs), higher VIO max (10 mV) | Better for ultra-low-power, DC-coupled sensor interfaces where speed is secondary | Select when battery life >10 years is required and signal bandwidth <1 kHz |
| TLC254CD | Higher supply current (4 mA typ), faster slew rate (4.5 V/µs), same VIO max (10 mV) | Suitable for higher-speed signal chains requiring >1 MHz bandwidth and AC coupling | Select when driving capacitive loads or implementing active filters above 100 kHz |
Compared with TLC25L4CD, the TLC25M4CD trades 15× higher supply current for 14× faster slew rate and tighter offset; compared with TLC254CD, it reduces power by 85% while retaining usable bandwidth for most sensor front-ends.
Availability
TLC25M4CD is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, and industrial loop receivers requiring stable component supply across extended production lifecycles.
Supply support for TLC25M4CD 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability and long-term support.
The TLC25x4 family was designed for low-voltage, low-power analog signal conditioning in energy-constrained systems - especially battery-operated instrumentation and industrial sensing.
FAQ
What is the maximum supply voltage rating for the TLC25M4CD?
The absolute maximum supply voltage for the TLC25M4CD is 18 V, but the recommended operating range is 1.4 V to 16 V. Exceeding 16 V risks violating the specified electrical characteristics and may accelerate parametric drift. The device is rated for continuous operation at 16 V with full functionality across 0°C to 70°C.
Does the TLC25M4CD support rail-to-rail output swing?
No - the TLC25M4CD does not provide rail-to-rail output swing. Its output voltage swing is limited to approximately 0.5 V above VDD–/GND and 0.5 V below VDD under typical load conditions (e.g., RL = 100 kΩ). For example, at VDD = 5 V, VOH ≈ 3.2–3.9 V and VOL ≈ 0–50 mV. Full rail-to-rail output requires newer-generation op-amps like the TLV9064.
What is the input offset voltage specification for the TLC25M4CD?
The TLC25M4CD is the B-grade variant, with a maximum input offset voltage (VIO) of 2 mV at 25°C and 3 mV across the full 0°C to 70°C operating range. This value is guaranteed and tested per the datasheet SLOS003G revision March 2001. The typical VIO is 0.25 mV at 25°C with VDD = 5 V.
Can the TLC25M4CD be used in a single-supply configuration with input signals referenced to ground?
Yes - the TLC25M4CD is explicitly designed for true single-supply operation, and its common-mode input voltage range includes the negative rail (VDD–/GND). This allows ground-referenced inputs (e.g., from thermistors or bridge sensors) to be applied directly to either input terminal without level-shifting circuitry.
Is the TLC25M4CD pin-compatible with other devices in the TLC25x4 family?
Yes - all TLC25x4 variants (including TLC254CD, TLC25L4CD, and TLC25M4CD) share identical SOIC-14 (D) pinouts and package footprints. They differ only in internal biasing, resulting in distinct supply current, slew rate, and bandwidth - but no PCB layout changes are needed when substituting within the same package option.
TLC25M4CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC25M4CD FAQ
1.How can I place an order for TLC25M4CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC25M4CD 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 TLC25M4CD reliable?
The price and inventory of TLC25M4CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC25M4CD is usually 5 days.
3.What payment methods are accepted for TLC25M4CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC25M4CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC25M4CD?
TLC25M4CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC25M4CD 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 TLC25M4CD?
For technical support, including TLC25M4CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC25M4CD requirements.
6.How does Aetrix verify that TLC25M4CD is sourced from the original manufacturer or authorized distributors?
All TLC25M4CD 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 TLC25M4CD meets industry standards.
7.What is the process for return or replacement of TLC25M4CD?
All TLC25M4CD units undergo pre-shipment inspection (PSI). If there is an issue with TLC25M4CD, 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 TLC25M4CD part is unused and in its original packaging.
Return procedure for TLC25M4CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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