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Texas Instruments TLE2141MDR
- Part No.:
- TLE2141MDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2141MDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,457
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Product details
Overview
TLE2141MDR from Texas Instruments is a military-grade, low-noise, high-speed precision operational amplifier optimized for demanding analog signal conditioning in harsh environments. It delivers 10.5nV/√Hz input voltage noise at 1kHz, 27V/μs slew rate (±15V supply), 5.9MHz gain-bandwidth product, and ±55°C to +125°C operation - enabling high-fidelity sensor front-ends in EV charging infrastructure and fire alarm control panels.
For engineers reviewing the TLE2141MDR datasheet, TLE2141MDR pinout, TLE2141MDR application, or TLE2141MDR equivalent, key selection criteria include its Excalibur bipolar process enabling symmetrical slew rate, fast 340ns settling to 0.1%, robust ±44V differential input tolerance, and military-temperature-rated SOIC-8 packaging for reliability-critical industrial power and safety systems.
Technical Context
The TLE2141MDR uses TI's complementary bipolar Excalibur process to achieve simultaneous low audio-band noise (10.5nV/√Hz @ 1kHz, 15nV/√Hz @ 10Hz) and high slew rate (27V/μs min, ±15V). Its input stage supports rail-to-rail common-mode range (–15V to +12.7V @ ±15V supply) and differential inputs up to ±44V without damage.
It features internal compensation, operates from ±2V to ±22V supplies, and maintains stable performance driving capacitive loads up to 10000pF. Saturation recovery time is 150ns, and open-loop propagation delay is ~200ns with TTL logic levels - confirming suitability as both precision amplifier and comparator in fast-response control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 10.5nV/√Hz @ 1kHz - enables high-resolution DC-coupled sensor amplification with minimal signal degradation |
| Slew Rate | 27V/μs (min, ±15V) - supports fast transient response in motor drive feedback and actuator positioning |
| Gain-Bandwidth Product | 5.9MHz - provides stable unity-gain operation with >57° phase margin into 2kΩ//100pF loads |
| Input Offset Voltage | 500μV max @ 25°C - ensures accurate DC gain accuracy in precision instrumentation and current sensing |
| Supply Voltage Range | ±2V to ±22V - accommodates wide industrial supply rails including 24VDC and split ±15V analog systems |
| Operating Temperature | –55°C to +125°C - qualified for military/aerospace and under-hood automotive applications |
| Output Swing | VCC− + 0.1V to VCC+ − 1V - delivers near-rail output headroom for maximum dynamic range in single-supply configurations |
Pinout & Package
Package: SOIC-8 (D package), 4.9mm × 6mm body size, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (N1) | Connects to external 5kΩ potentiometer wiper for manual input offset trimming |
| 2 | Inverting Input (IN−) | Differential input node; accepts common-mode voltages from VCC− to VCC+ − 0.3V |
| 3 | Non-Inverting Input (IN+) | Differential input node; supports same common-mode range as IN− |
| 4 | VCC− | Negative supply pin; must be connected for dual-supply operation or grounded for single-supply use |
| 5 | Offset Null (N2) | Connects to one end of 1kΩ resistor in offset null network (see datasheet Figure 1) |
| 6 | Output (OUT) | Amplified output capable of sourcing/sinking ≥20mA short-circuit current |
| 7 | VCC+ | Positive supply pin; supports up to +22V absolute max rating |
| 8 | NC / Not Connected | No internal connection; left unconnected per TI datasheet SLOS183E Section 4 |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 10Hz - minimizes low-frequency drift in precision DC measurements and strain gauge interfaces |
| Capacitive load drive | 10000pF - eliminates need for isolation resistors when driving ADC input filters or long cables |
| Fast settling time | 340ns to 0.1% (10V step) - enables high-throughput data acquisition in automated test equipment |
| Input overvoltage tolerance | ±44V differential - protects against transients in industrial fieldbus and motor control feedback paths |
| Comparator mode support | Open-loop propagation delay ~200ns - allows direct use as high-speed comparator without external hysteresis |
Applications
| EV Charging Infrastructure | Fire Alarm Control Panel (FACP) |
|---|---|
|
Use Scenario: Amplifying isolated current-sense signals from shunt resistors in 3-phase AC/DC converters. IC Role / Device Role / Timing Role: Precision current monitor amplifier with low noise and high CMRR for accurate fault detection. Use Value: 10.5nV/√Hz noise floor preserves resolution of sub-mA leakage currents critical for ground-fault interruption. |
Use Scenario: Conditioning smoke detector ionization chamber output in multi-sensor FACP modules. IC Role / Device Role / Timing Role: Low-drift transimpedance amplifier converting picoamp-level chamber current to voltage. Use Value: 500μV max VIO and 1.7μV/°C TC ensure stable baseline over –55°C to +125°C ambient extremes. |
| Industrial AC-DC Power Supplies | String Inverter Monitoring |
|
Use Scenario: Voltage error amplifier in isolated flyback or forward converter feedback loops. IC Role / Device Role / Timing Role: High-speed, high-PSRR op-amp stabilizing regulation under dynamic load steps. Use Value: 90dB min PSRR and 27V/μs slew rate maintain loop stability during 10A/ms load transients. |
Use Scenario: Isolated DC-link voltage monitoring and string imbalance detection in solar inverters. IC Role / Device Role / Timing Role: High-common-mode rejection amplifier interfacing with resistive divider networks. Use Value: ±44V differential input rating withstands common-mode spikes on 1000V+ PV strings without clamping diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA277MDR | Lower noise (8nV/√Hz), lower GBW (1MHz), no offset null pins, ±40V max supply | Better DC precision but slower response; unsuitable for >1MHz closed-loop designs | Select for ultra-low drift (<0.1μV/°C) and low-power biasing where speed is secondary |
| AD8675ARZ | CMOS input (fA bias), 2.8nV/√Hz noise, rail-to-rail output, ±16.5V max supply | Superior input impedance (>10¹²Ω) but limited output swing near rails and no military temp grade | Select for high-Z sensor interfaces requiring zero input current; not rated for –55°C operation |
Compared with OPA277MDR and AD8675ARZ, the TLE2141MDR uniquely combines military-temperature operation, dedicated offset-null capability, high slew rate, and ±44V differential input tolerance - making it the only choice for ruggedized, high-speed precision amplification in safety-critical power electronics.
Availability
TLE2141MDR is available at Aetrix Electronics and suitable for EV charging infrastructure, fire alarm control panels, and industrial AC-DC power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLE2141MDR 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 heritage in high-reliability op-amp design.
The TLE214x family was engineered for high-fidelity, high-speed analog signal conditioning in industrial and military systems - emphasizing low noise, robust input protection, and guaranteed performance across extreme temperatures.
FAQ
What is the maximum capacitive load the TLE2141MDR can drive without instability?
The TLE2141MDR is specified to drive up to 10000pF while maintaining stability, as confirmed in the official TI datasheet SLOS183E Section 1. This capability eliminates external isolation resistors in ADC driver and filter applications, preserving signal integrity and simplifying layout - a key advantage over standard precision op-amps limited to <1000pF.
Does the TLE2141MDR support single-supply operation?
Yes, the TLE2141MDR supports single-supply operation from 4V to 44V total supply range (e.g., 0V and +12V, or 0V and +24V). Its input common-mode range extends to VCC− (ground) and output swings to within 0.1V of VCC− and 1V below VCC+, enabling true single-supply functionality in battery-powered and industrial control systems - verified in Section 5.2 of the TLE2141MDR datasheet.
What is the purpose of Pins 1 and 5 on the TLE2141MDR?
Pins 1 and 5 on the TLE2141MDR are dedicated offset null terminals, configured as a 5kΩ potentiometer wiper (Pin 1) and 1kΩ reference leg (Pin 5). They enable precise manual trimming of input offset voltage down to microvolt levels - critical for DC-coupled applications like precision current sensing and weigh-scale amplifiers where initial VIO must be minimized before system calibration.
How does the TLE2141MDR perform as a comparator?
The TLE2141MDR functions effectively as a comparator with ~200ns open-loop propagation delay under TTL supply conditions, as documented in Section 3 of the datasheet. Its ability to tolerate differential inputs up to ±44V and recover from saturation in 150ns makes it suitable for overvoltage/overcurrent detection circuits - though external hysteresis is recommended for noise immunity in noisy industrial environments.
Is the TLE2141MDR pin-compatible with other TLE214x variants?
Yes, the TLE2141MDR is pin-compatible with all TLE2141x variants (including TLE2141CDR, TLE2141IDR, and TLE2141ACDR) in the SOIC-8 (D) package, as explicitly stated in the TI datasheet Section 3: "Both versions are pin-compatible upgrades to standard industry products." This allows drop-in replacement across commercial, industrial, and military grades without PCB redesign.
TLE2141MDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 45V/µs
- Gain Bandwidth Product:
- 5.9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 700 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 3.5mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2141MDR FAQ
1.How can I place an order for TLE2141MDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2141MDR 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 TLE2141MDR reliable?
The price and inventory of TLE2141MDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2141MDR is usually 5 days.
3.What payment methods are accepted for TLE2141MDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2141MDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2141MDR?
TLE2141MDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2141MDR 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 TLE2141MDR?
For technical support, including TLE2141MDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2141MDR requirements.
6.How does Aetrix verify that TLE2141MDR is sourced from the original manufacturer or authorized distributors?
All TLE2141MDR 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 TLE2141MDR meets industry standards.
7.What is the process for return or replacement of TLE2141MDR?
All TLE2141MDR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2141MDR, 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 TLE2141MDR part is unused and in its original packaging.
Return procedure for TLE2141MDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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