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Texas Instruments TLE2144CN
- Part No.:
- TLE2144CN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2144CN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:134
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Product details
Overview
TLE2144CN from Texas Instruments is a quad-channel, low-noise, high-speed precision operational amplifier in 14-pin PDIP package, delivering 5.9MHz gain-bandwidth product, 27V/μs minimum slew rate, and 10.5nV/√Hz input voltage noise at 1kHz - used in industrial AC-DC power supplies and fire alarm control panels for signal conditioning and feedback loop stability.
For engineers reviewing the TLE2144CN datasheet, TLE2144CN pinout, TLE2144CN application, or TLE2144CN equivalent, this page provides verified specifications, package mapping, functional alternatives, and design-critical performance data including settling time (340ns to 0.1%), output swing (VCC− + 0.1V to VCC+ − 1V), and ±2V to ±22V dual-supply operation.
Technical Context
The TLE2144CN uses TI's Excalibur complementary bipolar process to achieve simultaneous low audio-band noise (10.5nV/√Hz) and symmetrical 27V/μs slew rate under 800pF load. Its input stage supports differential inputs up to ±44V without damage and enables comparator operation with 200ns open-loop propagation delay at TTL levels.
It features internal compensation, fast saturation recovery (150ns), and stable operation with capacitive loads up to 10000pF. The device operates across 0°C to 70°C and supports single (4V–44V) or split (±2V–±22V) supply configurations with rail-to-rail input common-mode range extending to VCC− − 0.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 5.9MHz - ensures stable unity-gain operation and predictable closed-loop bandwidth in precision amplification stages |
| Slew rate | 27V/μs (min) - enables accurate reproduction of fast transients in motor control feedback and sensor signal paths |
| Input voltage noise | 10.5nV/√Hz at 1kHz - critical for low-distortion audio and high-resolution measurement front-ends |
| Input offset voltage | 500μV max at 25°C - supports sub-mV accuracy in DC-coupled instrumentation and current-sense amplifiers |
| Supply voltage range | ±2V to ±22V (split) or 4V to 44V (single) - accommodates wide industrial bus voltages and legacy 24V systems |
| Settling time | 340ns to 0.1% - meets timing requirements in high-speed actuator drivers and fast ADC buffer applications |
| Output drive capability | 20mA short-circuit current - drives 2kΩ loads directly without external buffers in analog output modules |
Pinout & Package
Package: N (PDIP-14), 19.3mm × 9.4mm body size with through-hole mounting. Designed for industrial temperature range (0°C to 70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 10, 14 | Offset Null | Adjustable input offset null terminals per amplifier channel (pins 1/5 for A, 10/14 for D) |
| 2, 6, 9, 13 | Inverting Input (−) | Differential input nodes for four independent op-amp channels |
| 3, 7, 8, 12 | Non-inverting Input (+) | Differential input nodes for four independent op-amp channels |
| 4, 11 | VCC− / GND | Negative supply (split) or ground (single-supply) reference for all four amplifiers |
| 13 | Output D | Amplifier D output - not shared; each channel has dedicated output pin |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise architecture | 10.5nV/√Hz at 1kHz enables high-fidelity signal amplification in sensor interfaces without added filtering |
| Capacitive load drive | Stable with up to 10000pF output capacitance - eliminates need for isolation resistors in long-cable or DAC-output buffering |
| Fast settling & recovery | 340ns to 0.1% settling and 150ns saturation recovery - reduces dead time in closed-loop control systems |
| Rail-compatible input range | Common-mode input extends to VCC− − 0.3V - supports direct sensing of low-side current shunts in power converters |
| Quad-channel integration | Four matched amplifiers in one PDIP-14 package - reduces board space and component count in multi-channel monitoring systems |
Applications
| Industrial AC-DC Power Supply | Fire Alarm Control Panel (FACP) |
|---|---|
Use Scenario: Voltage and current feedback conditioning in isolated flyback and forward converters. IC Role / Device Role / Timing Role: Precision error amplifier in primary-side regulation and secondary-side current sense amplification. Use Value: 500μV max VIO and 27V/μs slew rate maintain tight regulation margins under dynamic load steps while rejecting switching noise. |
Use Scenario: Smoke detector analog signal processing and alarm threshold comparison. IC Role / Device Role / Timing Role: Low-drift transducer amplifier and comparator for smoke chamber ionization current detection. Use Value: 10.5nV/√Hz noise floor preserves weak sensor signals; 150ns saturation recovery prevents false alarms during transient surges. |
| EV Charging Infrastructure | String Inverter |
Use Scenario: Isolated DC-link voltage monitoring and battery cell balancing control in Level 2 EVSE units. IC Role / Device Role / Timing Role: High-voltage differential amplifier for galvanically isolated bus sensing and fault detection circuitry. Use Value: ±44V differential input rating allows direct connection to isolation amplifiers; 5.9MHz GBW supports fast overvoltage response. |
Use Scenario: MPPT reference generation and DC-link voltage stabilization in photovoltaic string inverters. IC Role / Device Role / Timing Role: Precision integrator and reference buffer in analog PID controllers for maximum power point tracking. Use Value: Quad configuration enables simultaneous Vdc, Idc, Vac, and temperature signal conditioning with matched thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134UA | Lower noise (8nV/√Hz), lower GBW (4MHz), no offset null pins, SOIC-14 only | Better for audio; unsuitable where offset trimming or PDIP packaging is required | Select when ultra-low noise dominates over trim flexibility and package choice |
| LMC6084IM | CMOS input (fA bias), rail-to-rail output, 1.4MHz GBW, 22V max supply | Preferred for low-power, high-impedance sensor interfaces; insufficient speed for fast-settling loops | Select when input bias current <1pA is mandatory and slew rate >10V/μs is not required |
Compared with OPA4134UA and LMC6084IM, the TLE2144CN uniquely combines PDIP-14 offset-null capability, 27V/μs slew rate, and ±22V operation - making it irreplaceable in industrial power control designs requiring field-adjustable DC accuracy and robust supply tolerance.
Availability
TLE2144CN is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, fire alarm control panels, and EV charging infrastructure requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for TLE2144CN 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 amplifiers and industrial-grade ICs.
The TLE214x family was engineered for high-reliability industrial signal conditioning - emphasizing low noise, fast settling, and rugged supply tolerance in harsh electromagnetic environments.
FAQ
What is the operating temperature range for the TLE2144CN?
The TLE2144CN is characterized for operation from 0°C to 70°C, 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. This makes the TLE2144CN appropriate for commercial and controlled-environment industrial applications where ambient temperatures remain within this band. Always verify thermal derating in high-power-density layouts.
Does the TLE2144CN support single-supply operation?
Yes, the TLE2144CN supports single-supply operation from 4V to 44V. Its input common-mode range extends down to VCC− − 0.3V, enabling use with ground-referenced inputs in single-supply configurations. Output swing reaches within 0.1V of the negative rail and 1V below the positive rail, allowing effective utilization of available headroom in 24V or 36V systems.
How many operational amplifiers are integrated into the TLE2144CN?
The TLE2144CN integrates four independent, matched operational amplifiers in a single 14-pin PDIP package. Each amplifier has dedicated inverting and non-inverting inputs and outputs, plus dedicated offset null pins (two per amplifier), enabling precise calibration of each channel individually without crosstalk.
What is the maximum capacitive load the TLE2144CN can drive stably?
The TLE2144CN is specified to drive up to 10000pF capacitive loads while maintaining stability, as stated in its official features list. This capability eliminates the need for series isolation resistors in applications such as driving long cables, LCD bias networks, or DAC output filters - reducing component count and preserving signal integrity in high-capacitance interfaces.
Can the TLE2144CN be used as a comparator?
Yes, the TLE2144CN can be used as a comparator. The datasheet explicitly states that both TLE214x and TLE214xA versions support comparator operation, with typical open-loop propagation delay of 200ns under TTL supply conditions. However, for dedicated high-speed comparison, purpose-built comparators offer faster response and built-in hysteresis - the TLE2144CN is best applied where amplifier-comparator duality simplifies BOM in mixed-signal monitoring circuits.
TLE2144CN 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:
- 290 µV
- Current - Supply:
- 6.9mA (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
TLE2144CN FAQ
1.How can I place an order for TLE2144CN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2144CN 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 TLE2144CN reliable?
The price and inventory of TLE2144CN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2144CN is usually 5 days.
3.What payment methods are accepted for TLE2144CN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2144CN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2144CN?
TLE2144CN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2144CN 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 TLE2144CN?
For technical support, including TLE2144CN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2144CN requirements.
6.How does Aetrix verify that TLE2144CN is sourced from the original manufacturer or authorized distributors?
All TLE2144CN 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 TLE2144CN meets industry standards.
7.What is the process for return or replacement of TLE2144CN?
All TLE2144CN units undergo pre-shipment inspection (PSI). If there is an issue with TLE2144CN, 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 TLE2144CN part is unused and in its original packaging.
Return procedure for TLE2144CN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2144CN Tags
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