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Texas Instruments TLE2142AMDR
- Part No.:
- TLE2142AMDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2142AMDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,801
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Product details
Overview
TLE2142AMDR from Texas Instruments is a dual-channel, high-speed precision operational amplifier with Excalibur bipolar process technology. It delivers 27V/μs minimum slew rate, 5.9MHz gain-bandwidth product, and 10.5nV/√Hz input voltage noise at 1kHz - enabling low-distortion signal conditioning in industrial power control and precision sensor interfaces.
For engineers reviewing the TLE2142AMDR datasheet, TLE2142AMDR pinout, TLE2142AMDR application, or TLE2142AMDR equivalent, key selection criteria include its military-grade temperature range (−55°C to 125°C), ±2V to ±22V supply flexibility, fast 430ns settling time to 0.1%, and robust 10000pF capacitive load drive capability.
Technical Context
The TLE2142AMDR integrates a symmetrical input stage optimized for low audio-band noise (10.5nV/√Hz) and a 10Hz 1/f corner, while maintaining matched ±27V/μs slew rates under ±15V supplies. Its internal compensation ensures stable unity-gain operation with up to 100pF capacitive load.
Designed for high-fidelity analog signal paths, it supports rail-to-rail output swing (VCC− + 0.1V to VCC+ − 1V), differential input tolerance up to ±44V, and TTL-compatible saturation recovery of 150ns - making it suitable for fast actuator drivers and precision DC-coupled amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 27V/μs minimum - enables accurate reproduction of fast transients in motor control feedback loops |
| Gain-Bandwidth Product | 5.9MHz - supports stable closed-loop gain ≥10 at 500kHz for anti-aliasing filter design |
| Input Voltage Noise | 10.5nV/√Hz at 1kHz - critical for low-level sensor signal amplification without added noise floor |
| Input Offset Voltage | 500μV maximum at 25°C - ensures <±1mV error in 12-bit ADC front-end applications |
| Supply Voltage Range | ±2V to ±22V - accommodates wide industrial supply rails including ±15V legacy systems |
| Capacitive Load Drive | 10000pF - allows direct interface to long cables or high-C sampling networks without instability |
| Operating Temperature | −55°C to 125°C - qualified for military and harsh-environment embedded systems |
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 (IN−) | Adjusts input offset via external potentiometer; required for sub-100μV precision calibration |
| 2 | Inverting Input (IN−) | Differential input node for negative feedback configuration; accepts common-mode voltages down to VCC− − 0.3V |
| 3 | Non-Inverting Input (IN+) | Differential input node for positive feedback or buffer configuration; supports full rail-to-rail common-mode range |
| 4 | VCC− | Negative supply rail connection; must be decoupled locally to minimize PSRR degradation |
| 5 | Offset Null (IN+) | Second terminal for offset null adjustment; used with Pin 1 to balance input stage mismatch |
| 6 | Output (OUT) | Class-AB output stage capable of ±20mA short-circuit current and 10000pF load stability |
| 7 | VCC+ | Positive supply rail connection; supports single-supply operation when VCC− = GND |
| 8 | NC | No connect - internally unused; must remain unconnected per TI specification |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 10Hz - preserves signal integrity in DC-coupled instrumentation amplifiers and strain gauge bridges |
| Fast settling time | 430ns to 0.1% on 10V step - reduces dead time in closed-loop position controllers |
| High output current | 20mA minimum short-circuit current - drives 2kΩ loads with minimal droop in active filters |
| Rail-to-rail output swing | VCC− + 0.1V to VCC+ − 1V - maximizes dynamic range in ±15V systems without level-shifting circuitry |
| Input overvoltage protection | Differential inputs withstand ±44V - eliminates need for external clamping diodes in noisy industrial environments |
Applications
| EV Charging Infrastructure | Industrial AC-DC Converters |
|---|---|
Use Scenario: Precision voltage and current sensing in bidirectional OBC (on-board charger) feedback loops. IC Role / Device Role / Timing Role: Dual op-amp configured as isolated current-sense amplifier and reference buffer. Use Value: 10.5nV/√Hz noise and 27V/μs slew rate maintain <0.1% measurement accuracy during rapid load transients. | Use Scenario: Voltage regulation loop compensation and line-voltage monitoring in 3kW+ SMPS units. IC Role / Device Role / Timing Role: High-stability error amplifier with 5.9MHz GBW supporting >100kHz loop bandwidth. Use Value: ±22V supply range and −55°C to 125°C rating ensure reliability across wide ambient and input voltage variations. |
| Fire Alarm Control Panel (FACP) | String Inverter Monitoring |
Use Scenario: Smoke detector analog signal conditioning and alarm threshold comparison. IC Role / Device Role / Timing Role: Low-drift amplifier for photoelectric sensor output, plus comparator mode for fast fault detection. Use Value: 500μV max VIO and 150ns saturation recovery enable reliable sub-10mV threshold triggering across temperature extremes. | Use Scenario: DC-link voltage sensing and string current balancing in photovoltaic inverters. IC Role / Device Role / Timing Role: Dual-channel signal conditioner for isolated shunt-based current measurement and bus voltage scaling. Use Value: 10000pF load drive capability supports direct interface to isolation amplifier output capacitors without phase margin loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211IDR | Lower noise (1.1nV/√Hz), lower supply current (3.6mA), but only ±18V max supply and −40°C to 125°C range | Preferred for battery-powered precision instruments; not rated for military temp or ±22V rails | Select when ultra-low noise dominates over supply voltage headroom and extended temperature compliance |
| AD8610ARZ | FEMTOamp bias current (1pA), rail-to-rail input/output, but 25MHz GBW and 12V max supply limit high-voltage use | Better for high-impedance sensor nodes; unsuitable for ±15V industrial signal chains | Choose for pH sensors or piezoelectric transducers where input leakage matters more than slew rate or voltage range |
Compared with OPA211IDR and AD8610ARZ, the TLE2142AMDR uniquely combines military-temperature operation, ±22V supply support, and 27V/μs slew rate - making it irreplaceable in high-reliability, high-voltage industrial amplification where both speed and ruggedness are mandatory.
Availability
TLE2142AMDR is available at Aetrix Electronics and suitable for EV charging infrastructure, industrial AC-DC converters, and fire alarm control panel (FACP) designs requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLE2142AMDR 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 precision op-amps and industrial-grade ICs.
The TLE214x family was engineered for high-fidelity, high-reliability analog signal conditioning in mission-critical industrial, military, and energy infrastructure applications - emphasizing low noise, wide supply range, and extreme temperature resilience.
FAQ
What is the maximum capacitive load the TLE2142AMDR can drive without oscillation?
The TLE2142AMDR is specified to drive up to 10000pF capacitive loads stably, as confirmed in its datasheet's "Load capability" feature and operating characteristics tables. This capability eliminates the need for external isolation resistors in applications like cable-driven outputs or switched-capacitor filter stages, provided proper PCB layout and local supply decoupling are maintained. The TLE2142AMDR maintains phase margin above 57° even with 100pF load at unity gain.
Does the TLE2142AMDR support single-supply operation?
Yes, the TLE2142AMDR supports single-supply operation from 4V to 44V total supply range (e.g., VCC+ = 44V, VCC− = GND). Its input common-mode range extends to VCC− − 0.3V and output swings to within 0.1V of VCC−, enabling true single-supply use in 5V or 12V systems. However, the full −55°C to 125°C rating applies only under split-supply conditions per TI's characterization data.
What is the purpose of Pins 1 and 5 on the TLE2142AMDR?
Pins 1 and 5 are dedicated offset null terminals for the first op-amp channel. They connect to an external 10kΩ potentiometer (wiper to VCC−, ends to Pins 1 and 5) to actively trim input offset voltage below 50μV. This function is essential in precision DC-coupled applications such as weigh-scale amplifiers or thermocouple signal chains where initial VIO contributes directly to system error.
How does the TLE2142AMDR perform as a comparator?
The TLE2142AMDR can operate as a comparator with open-loop propagation delay of ~200ns under TTL supply levels, and saturation recovery time of 150ns. While not optimized for high-speed digital switching, its robust input stage tolerates differential inputs up to ±44V without damage - allowing safe use in overvoltage detection circuits where standard comparators would require external clamping. Output logic thresholds remain predictable due to its well-defined output swing limits.
Is the TLE2142AMDR pin-compatible with other devices in the TLE214x family?
Yes, the TLE2142AMDR is pin-compatible with all TLE2142 variants in SOIC-8 (D) package, including TLE2142CDR, TLE2142IDR, and TLE2142MDR. It shares identical pinout, footprint, and electrical interface with these versions - differing only in temperature grade (M-suffix = −55°C to 125°C), offset voltage distribution (AM = tighter VIO spec), and screening level. No PCB redesign is needed when upgrading from commercial or industrial grades to the military-grade TLE2142AMDR.
TLE2142AMDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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:
- 275 µV
- Current - Supply:
- 6.9mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2142AMDR FAQ
1.How can I place an order for TLE2142AMDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2142AMDR 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 TLE2142AMDR reliable?
The price and inventory of TLE2142AMDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2142AMDR is usually 5 days.
3.What payment methods are accepted for TLE2142AMDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2142AMDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2142AMDR?
TLE2142AMDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2142AMDR 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 TLE2142AMDR?
For technical support, including TLE2142AMDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2142AMDR requirements.
6.How does Aetrix verify that TLE2142AMDR is sourced from the original manufacturer or authorized distributors?
All TLE2142AMDR 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 TLE2142AMDR meets industry standards.
7.What is the process for return or replacement of TLE2142AMDR?
All TLE2142AMDR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2142AMDR, 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 TLE2142AMDR part is unused and in its original packaging.
Return procedure for TLE2142AMDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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