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Texas Instruments TLE2144ACN
- Part No.:
- TLE2144ACN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2144ACN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,828
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Product details
Overview
TLE2144ACN from Texas Instruments is a quad-channel, low-noise, high-speed precision operational amplifier in 14-pin PDIP packaging, featuring 10.5nV/√Hz input voltage noise at 1kHz, 27V/μs minimum slew rate, 5.9MHz gain-bandwidth product, ±2V to ±22V dual-supply operation, and 500μV maximum input offset voltage at 25°C. It serves signal conditioning and precision amplification in industrial power conversion stages.
For engineers reviewing the TLE2144ACN datasheet, TLE2144ACN pinout, TLE2144ACN application, or TLE2144ACN equivalent, this page delivers verified electrical specifications, package-validated pin functions, real-world use cases in EV charging and string inverters, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The TLE2144ACN uses TI's Excalibur complementary bipolar process to achieve simultaneous low audio-band noise (10.5nV/√Hz, 10Hz 1/f corner) and symmetrical 40V/μs typical slew rate into loads up to 800pF. Its fast settling time (340ns to 0.1% on 10V step) and saturation recovery (150ns) support high-fidelity audio and fast actuator control loops.
It supports single- or split-supply operation (4V–44V total), features rail-to-rail output swing (VCC− + 0.1V to VCC+ − 1V), and includes internal compensation for unity-gain stability. The device is characterized for 0°C to 70°C operation and can function as a comparator with TTL-compatible propagation delay (~200ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 5.9MHz - enables stable closed-loop gain ≥10 at >500kHz with minimal phase margin degradation |
| Slew rate (min) | 27V/μs - supports full-scale 10V output transitions in ≤370ns without slewing distortion |
| Input voltage noise | 10.5nV/√Hz @ 1kHz - preserves SNR in precision sensor front-ends and audio preamps |
| Input offset voltage (max) | 500μV @ 25°C - ensures ≤0.05% gain error in 10V-range instrumentation amplifiers |
| Supply voltage range | ±2V to ±22V - accommodates industrial 24V DC systems and legacy ±15V analog rails |
| Settling time (to 0.1%) | 340ns - meets timing budgets in high-speed data acquisition and PWM feedback paths |
| Short-circuit output current | 20mA (min) - sustains drive capability into heavy capacitive loads (e.g., 1000pF) without latch-up |
Pinout & Package
Package: N (PDIP-14), 19.3mm × 9.4mm body size with through-hole mounting. RoHS-compliant lead finish, rated for 0°C to 70°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (IN− side) | Connects to 1kΩ resistor in external nulling network; adjusts input stage imbalance |
| 2 | Inverting Input (Ch 1) | Differential input node for first op-amp channel; accepts signals referenced to common-mode range |
| 3 | Non-inverting Input (Ch 1) | Differential input node for first op-amp channel; supports biasing and feedback configuration |
| 4 | VCC− | Negative supply rail; must be decoupled locally to minimize PSRR degradation |
| 5 | Non-inverting Input (Ch 2) | Differential input node for second op-amp channel; electrically isolated from Ch 1 |
| 6 | Inverting Input (Ch 2) | Differential input node for second op-amp channel; shares no internal nodes with other channels |
| 7 | Output (Ch 2) | Amplified output of second channel; capable of sourcing/sinking ≥20mA short-circuit current |
| 8 | Output (Ch 1) | Amplified output of first channel; drives loads up to 1000pF while maintaining stability |
| 9 | Inverting Input (Ch 3) | Differential input node for third op-amp channel; identical electrical specs to Ch 1/2 |
| 10 | Non-inverting Input (Ch 3) | Differential input node for third op-amp channel; supports independent gain-setting networks |
| 11 | VCC+ | Positive supply rail; requires local 0.1μF ceramic decoupling adjacent to pin |
| 12 | Non-inverting Input (Ch 4) | Differential input node for fourth op-amp channel; fully isolated per-channel architecture |
| 13 | Inverting Input (Ch 4) | Differential input node for fourth op-amp channel; no crosstalk with other channels |
| 14 | Output (Ch 4) | Amplified output of fourth channel; delivers rail-to-rail swing under specified load conditions |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 10Hz - minimizes drift-induced errors in DC-coupled sensor interfaces and integrators |
| Fast saturation recovery | 150ns - enables reliable operation in overdriven configurations like comparators or peak detectors |
| High capacitive load drive | 1000pF - eliminates need for external isolation resistors in ADC driver or filter applications |
| Rail-to-rail output swing | VCC− + 0.1V to VCC+ − 1V - maximizes dynamic range in single-supply 5V or 3.3V systems |
| Wide supply range | ±2V to ±22V - supports direct integration into industrial AC-DC converters without level-shifting |
| Quad-channel isolation | No inter-channel crosstalk - allows independent signal paths for multi-sensor monitoring or redundant control |
Applications
| EV Charging Infrastructure | Industrial AC-DC Converters |
|---|---|
|
Use Scenario: Voltage and current sensing in bidirectional OBC (on-board charger) feedback loops. IC Role / Device Role / Timing Role: Precision amplifier for shunt-based current measurement and DC-link voltage scaling. Use Value: 10.5nV/√Hz noise floor ensures <0.1% measurement accuracy at 10A full scale; 27V/μs slew rate tracks fast transient currents during mode switching. |
Use Scenario: Isolated feedback amplification in secondary-side regulation of telecom rectifiers. IC Role / Device Role / Timing Role: Error amplifier driving optocoupler input in TL431-based voltage reference loop. Use Value: 500μV max VIO maintains ±0.5% output voltage tolerance across temperature; ±22V supply rating matches 48V system rails. |
| Fire Alarm Control Panel (FACP) | String Inverter Monitoring |
|
Use Scenario: Smoke detector analog signal conditioning and threshold comparison in life-safety circuits. IC Role / Device Role / Timing Role: Low-drift transimpedance amplifier converting photodiode current to voltage, followed by comparator function. Use Value: 150ns saturation recovery prevents false alarms during rapid smoke density changes; 0°C–70°C rating aligns with UL 864 environmental requirements. |
Use Scenario: String-level voltage and leakage current monitoring in solar PV inverters. IC Role / Device Role / Timing Role: High-common-mode-rejection amplifier for floating DC string measurements referenced to ground. Use Value: 85dB CMRR rejects >99.9% of 1000V common-mode noise; quad configuration enables simultaneous monitoring of four strings per IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134UA | Lower noise (8nV/√Hz), lower GBW (4MHz), higher VIO (1mV max), SOIC-14 only | Better for audio; less suitable for high-speed industrial feedback due to slower slew (20V/μs) | Select when ultra-low noise dominates over speed and offset; verify layout compatibility with SOIC-14 footprint |
| LT1492CN | Higher VIO (1.2mV max), lower slew (10V/μs), same PDIP-14 package, wider temp range (−40°C to 85°C) | Preferred for cost-sensitive industrial designs where 0.1% accuracy suffices and bandwidth <1MHz | Choose for legacy drop-in replacement where thermal robustness matters more than speed or noise |
Compared with TLE2144ACN, OPA4134UA trades 27V/μs slew and 5.9MHz GBW for superior noise performance but sacrifices speed-critical settling; LT1492CN retains PDIP-14 compatibility but relaxes precision and bandwidth for broader temperature operation and lower cost.
Availability
TLE2144ACN is available at Aetrix Electronics and suitable for EV charging infrastructure, industrial AC-DC converters, and fire alarm control panels requiring stable component supply across long production lifecycles.
Supply support for TLE2144ACN 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 over 90 years of innovation in precision analog design.
The TLE214x family was engineered for high-fidelity signal conditioning in industrial power systems, emphasizing low noise, fast settling, and robust output drive-specifically targeting EV charging, renewable energy inverters, and safety-critical control panels.
FAQ
What is the maximum operating temperature range for the TLE2144ACN?
The TLE2144ACN is characterized for operation from 0°C to 70°C ambient temperature, as indicated by its 'C' suffix. It is not rated for extended industrial (−40°C to 105°C) or military (−55°C to 125°C) ranges. For designs requiring wider temperature coverage, consider the TLE2144I or TLE2144M variants instead of the TLE2144ACN.
Does the TLE2144ACN support single-supply operation?
Yes, the TLE2144ACN supports single-supply operation from 4V to 44V total supply range. Its input common-mode range extends to VCC− − 0.3V and output swings to within 0.1V of VCC− and 1V of VCC+, enabling effective use in 5V, 12V, or 24V single-rail systems without level-shifting circuitry.
Can the TLE2144ACN drive a 1000pF capacitive load without instability?
Yes, the TLE2144ACN is explicitly specified for stable operation with 1000pF capacitive loads, as stated in its datasheet features. This eliminates the need for series isolation resistors in ADC driver, filter, or cable-driving applications-unlike many general-purpose op-amps that require external compensation above ~100pF.
How does the TLE2144ACN compare to the TLE2144A variant?
The TLE2144ACN has a maximum input offset voltage of 500μV at 25°C, whereas the TLE2144A variant tightens this to 300μV max. Both share identical noise, slew rate, bandwidth, and package. The 'A' grade is preferred for ultra-precision applications like calibration equipment, while the TLE2144ACN offers optimal cost/performance balance for industrial power monitoring.
Is the TLE2144ACN pin-compatible with standard industry quad op-amps?
Yes, the TLE2144ACN in PDIP-14 packaging follows the industry-standard pinout for quad op-amps (e.g., LM324, TL084), with VCC+, VCC−, and channel I/O arranged identically. This allows direct mechanical and electrical substitution in existing layouts-provided the higher slew rate and noise performance of the TLE2144ACN do not introduce unintended bandwidth-related issues.
TLE2144ACN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 45V/µs
- Gain Bandwidth Product:
- 5.9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 700 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 13.8mA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLE2144ACN FAQ
1.How can I place an order for TLE2144ACN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2144ACN 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 TLE2144ACN reliable?
The price and inventory of TLE2144ACN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2144ACN is usually 5 days.
3.What payment methods are accepted for TLE2144ACN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2144ACN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2144ACN?
TLE2144ACN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2144ACN 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 TLE2144ACN?
For technical support, including TLE2144ACN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2144ACN requirements.
6.How does Aetrix verify that TLE2144ACN is sourced from the original manufacturer or authorized distributors?
All TLE2144ACN 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 TLE2144ACN meets industry standards.
7.What is the process for return or replacement of TLE2144ACN?
All TLE2144ACN units undergo pre-shipment inspection (PSI). If there is an issue with TLE2144ACN, 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 TLE2144ACN part is unused and in its original packaging.
Return procedure for TLE2144ACN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2144ACN Tags
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