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Texas Instruments TLE2144IN
- Part No.:
- TLE2144IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2144IN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,156
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Product details
Overview
TLE2144IN from Texas Instruments is a quad-channel, low-noise, high-speed precision operational amplifier in a 14-pin PDIP package, 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 - deployed in EV charging infrastructure signal conditioning and industrial AC-DC feedback loops.
For engineers reviewing the TLE2144IN datasheet, TLE2144IN pinout, TLE2144IN application, or TLE2144IN equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in fire alarm control panels and string inverters, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The TLE2144IN uses TI's Excalibur complementary bipolar process to achieve simultaneous low audio-band noise (10.5nV/√Hz, 10Hz 1/f corner) and symmetrical 27V/μs slew rate under ±15V supply with ≥800pF capacitive load drive capability. Its fast settling (340ns to 0.1%, 400ns to 0.01% for 10V step) and 150ns saturation recovery support high-fidelity analog signal paths requiring minimal distortion and rapid transient response.
It operates across −40°C to 105°C (I-suffix grade), supports single (4V–44V) or split (±2V–±22V) supplies, delivers rail-to-rail output swing of VCC− + 0.1V to VCC+ − 1V, and includes internal compensation for unity-gain stability with 57° phase margin at 5.9MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Noise density | 10.5nV/√Hz at 1kHz - enables high-resolution sensor amplification without added broadband noise floor elevation |
| Slew rate | 27V/μs min - supports clean amplification of fast transients up to ~1.5MHz full-power bandwidth |
| Gain-bandwidth | 5.9MHz - allows stable closed-loop gain ≥10 at 500kHz while maintaining phase margin |
| Input offset | 500μV max at 25°C - ensures ≤0.5% initial DC error in precision gain stages without trimming |
| Supply range | ±2V to ±22V - accommodates industrial 24V systems and high-voltage AC-DC monitoring rails |
| Output swing | VCC− + 0.1V to VCC+ − 1V - delivers >20VPP dynamic range on ±15V supplies for wide-swing feedback control |
| Short-circuit current | 20mA min - provides robust fault tolerance during overcurrent events in motor driver interfaces |
Pinout & Package
Package: N (PDIP-14), 19.3mm × 9.4mm body size with through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output channel A - drives external loads up to 1000pF with 27V/μs slew |
| 2 | IN− A | Inverting input for channel A - accepts common-mode voltages from VCC− to VCC+ − 0.3V |
| 3 | IN+ A | Non-inverting input for channel A - high-impedance (70MΩ) node for precision reference or sensor interface |
| 4 | VCC− | Negative supply rail - connects to ground (single supply) or negative rail (split supply) |
| 5 | IN+ B | Non-inverting input for channel B - electrically isolated from other channels for multi-path sensing |
| 6 | IN− B | Inverting input for channel B - matched bias current (±0.8μA) enables low-offset differential configurations |
| 7 | OUT B | Inverting amplifier output channel B - identical AC/DC specs to OUT A for parallel processing |
| 8 | OUT C | Inverting amplifier output channel C - shares same thermal and supply rejection as channels A/B |
| 9 | IN− C | Inverting input for channel C - supports independent gain-setting resistors per channel |
| 10 | IN+ C | Non-inverting input for channel C - referenced to VCC− for single-supply level-shifting applications |
| 11 | VCC+ | Positive supply rail - supplies all four op-amps; total ICC = 13.2mA typ at 25°C |
| 12 | IN+ D | Non-inverting input for channel D - enables four independent analog signal chains on one IC |
| 13 | IN− D | Inverting input for channel D - supports unity-gain buffer or active filter topologies |
| 14 | OUT D | Inverting amplifier output channel D - fully specified for 0.1% settling in <400ns |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise input stage | 10.5nV/√Hz at 1kHz with 10Hz 1/f corner - preserves SNR in low-frequency sensor front-ends |
| Capacitive load drive | Stable into 1000pF - eliminates need for isolation resistors in ADC driver or cable-driven applications |
| Fast settling time | 340ns to 0.1% for 10V step - enables high-throughput data acquisition at >2MSps effective sampling |
| Wide supply range | ±2V to ±22V - supports direct integration into 24V industrial bus systems without LDO pre-regulation |
| Offset voltage nulling | OFFSET N1/OFFSET N2 pins (pins 5 & 12) allow external 5kΩ/1kΩ resistor network for sub-100μV trimming |
Applications
| EV Charging Infrastructure | Industrial AC-DC Power Supply |
|---|---|
Use Scenario: Precision current sensing and voltage regulation feedback in 11–22kW onboard chargers. IC Role / Device Role / Timing Role: Quad op-amp performs simultaneous shunt-based current monitoring (A/B), DC-link voltage scaling (C), and error amplifier for PWM controller (D). Use Value: 27V/μs slew and 5.9MHz GBW ensure accurate 50kHz switching loop response; 500μV VIO minimizes calibration drift over temperature. |
Use Scenario: Isolated feedback path and line-voltage monitoring in telecom rectifiers and server PSUs. IC Role / Device Role / Timing Role: Channels A/B condition optocoupler outputs; C/D scale and buffer AC mains inputs for protection circuitry. Use Value: ±22V supply rating matches 48V/54V bus rails; 10.5nV/√Hz noise prevents false triggering in overvoltage detection. |
| Fire Alarm Control Panel (FACP) | String Inverter Monitoring |
Use Scenario: Multi-zone smoke detector signal conditioning and alarm threshold comparison in Class A fire panels. IC Role / Device Role / Timing Role: Four independent amplifiers process analog outputs from photoelectric, ionization, and CO sensors before ADC conversion. Use Value: −40°C to 105°C operating range ensures reliability in unconditioned enclosures; 150ns saturation recovery prevents latch-up during ESD events. |
Use Scenario: String-level voltage, current, and temperature monitoring in photovoltaic central inverters. IC Role / Device Role / Timing Role: Channels A–D simultaneously amplify isolated measurements from 4–8 PV strings for MPPT algorithm input. Use Value: 1000pF load capability supports long PCB traces to remote sensors; 500μV VIO maintains <0.1% measurement accuracy across 85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134IPW | Lower noise (8nV/√Hz), lower slew (20V/μs), 36V max supply, SOIC-14 only | Better for audio-grade signal chains; insufficient slew for 50kHz power loop control | Select when ultra-low noise dominates over speed and high-voltage operation |
| LMC6084IMX | Rail-to-rail output, higher VIO (1.5mV), 1.4MHz GBW, CMOS input, 16V max supply | Optimized for low-power, single-supply battery systems; lacks high-voltage robustness | Select for portable instrumentation where supply headroom is limited and speed is secondary |
Compared with TLE2144IN, OPA4134IPW trades 27V/μs slew and ±22V operation for lower noise, while LMC6084IMX sacrifices bandwidth and supply range for rail-to-rail output and CMOS input impedance - making TLE2144IN uniquely suited for industrial power electronics demanding both speed and ruggedness.
Availability
TLE2144IN is available at Aetrix Electronics and suitable for EV charging infrastructure, industrial AC-DC power supplies, and fire alarm control panel designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLE2144IN 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 high-reliability components for industrial, automotive, and aerospace markets.
The TLE214x family was designed specifically for high-precision, high-speed analog signal conditioning in harsh industrial environments - emphasizing low noise, fast settling, and wide supply tolerance without sacrificing DC accuracy.
FAQ
What is the operating temperature range for the TLE2144IN?
The TLE2144IN is rated for −40°C to +105°C, matching the I-suffix industrial temperature grade. This range is validated per TI's SLOS183E datasheet Section 5.2, enabling deployment in unventilated enclosures, outdoor power electronics, and factory-floor automation systems where ambient temperatures exceed commercial limits. The TLE2144IN maintains its 500μV input offset voltage and 27V/μs slew rate across this full span.
Does the TLE2144IN support single-supply operation?
Yes, the TLE2144IN supports single-supply operation from 4V to 44V, as confirmed in Section 5.2 of the datasheet. With VCC− grounded, the common-mode input range extends from 0V to VCC+ − 0.3V, and the output swings from 0.1V above ground to VCC+ − 1V - enabling direct interfacing with 3.3V or 5V ADCs and microcontrollers without level-shifting circuitry.
How many operational amplifiers are integrated in the TLE2144IN?
The TLE2144IN integrates four independent, high-performance operational amplifiers in a single 14-pin PDIP package. Each channel has fully specified AC and DC parameters - including matched slew rate, noise, and offset - allowing concurrent signal processing for multi-sensor systems, redundant feedback paths, or multi-stage filtering without cross-talk or performance degradation.
What is the maximum capacitive load the TLE2144IN can drive stably?
The TLE2144IN is characterized to drive up to 1000pF capacitively without oscillation or excessive overshoot, as stated in the "Features" section of the datasheet. This capability eliminates the need for series isolation resistors in applications such as ADC drivers, coaxial cable interfaces, and piezoelectric sensor buffers - reducing component count and preserving signal integrity in high-impedance nodes.
Is the TLE2144IN pin-compatible with other devices in the TLE214x family?
Yes, the TLE2144IN shares the same 14-pin PDIP (N-package) pinout with TLE2144, TLE2144A, and TLE2144M variants. All share identical pin functions - including dedicated OFFSET N1/N2 terminals - enabling drop-in replacement across temperature grades (I, C, M) and offset grades (standard vs. A-grade) without PCB redesign or layout changes.
TLE2144IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLE2144IN FAQ
1.How can I place an order for TLE2144IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2144IN 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 TLE2144IN reliable?
The price and inventory of TLE2144IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2144IN is usually 5 days.
3.What payment methods are accepted for TLE2144IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2144IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2144IN?
TLE2144IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2144IN 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 TLE2144IN?
For technical support, including TLE2144IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2144IN requirements.
6.How does Aetrix verify that TLE2144IN is sourced from the original manufacturer or authorized distributors?
All TLE2144IN 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 TLE2144IN meets industry standards.
7.What is the process for return or replacement of TLE2144IN?
All TLE2144IN units undergo pre-shipment inspection (PSI). If there is an issue with TLE2144IN, 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 TLE2144IN part is unused and in its original packaging.
Return procedure for TLE2144IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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