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Texas Instruments TLE2142QDRQ1
- Part No.:
- TLE2142QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2142QDRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,843
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Product details
Overview
TLE2142QDRQ1 from Texas Instruments is a dual-channel, automotive-qualified Excalibur™ high-speed precision operational amplifier optimized for low-noise signal conditioning in high-voltage powertrain systems. It delivers 10.5nV/√Hz input voltage noise at 1kHz, 27V/μs minimum slew rate, 5.9MHz gain-bandwidth product, and rail-to-rail output swing (VCC– + 0.1V to VCC+ – 1V) under ±15V supply, enabling accurate current sensing in traction inverters.
For engineers reviewing the TLE2142QDRQ1 datasheet, TLE2142QDRQ1 pinout, TLE2142QDRQ1 application, or TLE2142QDRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to 125°C), 10nF capacitive load stability, fast 430ns settling time to 0.1%, and robust ±22V absolute maximum supply rating - critical for automotive DC/DC converter feedback loops and onboard charger voltage regulation.
Technical Context
The TLE2142QDRQ1 employs Texas Instruments' complementary bipolar Excalibur™ process to achieve simultaneous low audio-band noise (10.5nV/√Hz @ 1kHz, 10Hz 1/f corner) and symmetrical 40V/μs typical slew rate. Its input stage minimizes distortion while maintaining >85dB CMRR and >90dB PSRR across –40°C to 125°C.
Designed for stability with up to 10nF capacitive loads, it supports direct buffering of long cables and low-droop sample-and-holds. The all-NPN output stage enables near-rail output swing and short-circuit protection with 20mA minimum output current, making it suitable for driving heavy capacitive or resistive loads in safety-critical automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2V to ±22V - supports wide-input automotive battery and HV bus monitoring without external level-shifting. |
| Input Voltage Noise | 10.5nV/√Hz @ 1kHz - enables high-fidelity amplification of low-level sensor signals (e.g., shunt-based current sensing) with minimal added noise floor. |
| Slew Rate | 27V/μs (min) - ensures faithful reproduction of fast transients in motor control feedback paths and PWM-driven actuator interfaces. |
| Gain-Bandwidth Product | 5.9MHz - provides sufficient loop bandwidth for stable closed-loop operation in precision voltage regulation circuits (e.g., isolated DC/DC error amplifiers). |
| Settling Time | 430ns to 0.1% (10V step, ±15V supply) - meets timing requirements for high-speed data acquisition in automatic transmission solenoid drivers. |
| Output Swing | VCC– + 0.1V to VCC+ – 1V - maximizes dynamic range in single-supply or split-supply configurations, reducing headroom loss in analog front-ends. |
| Capacitive Load Drive | Stable up to 10nF - eliminates need for external isolation resistors when driving long traces, ADC inputs, or 4–20mA loop drivers. |
Pinout & Package
Package: SOIC-8 (D package), 4.9mm × 6mm body size, surface-mount, RoHS-compliant, MSL Level 2a.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load; capable of ±20mA short-circuit current and rail-to-rail swing under light loading. |
| 2 (IN– A) | Inverting input A | Differential input node; operates from VCC– – 0.3V to VCC+ – 1.8V without phase reversal. |
| 3 (IN+ A) | Non-inverting input A | High-impedance input (70MΩ); accepts common-mode voltages up to 12.7V with ±15V supplies. |
| 4 (VCC–) | Negative supply rail | Reference for dual-supply operation; supports up to –22V absolute max; internally tied to substrate. |
| 5 (IN+ B) | Non-inverting input B | Independent second channel input; identical specs to IN+ A; enables dual-path signal conditioning. |
| 6 (IN– B) | Inverting input B | Second channel differential input; matched offset and noise performance to channel A. |
| 7 (OUT B) | Amplifier B output | Fully independent output; shares same drive strength, slew rate, and load capability as OUT A. |
| 8 (VCC+) | Positive supply rail | Supports up to +22V absolute max; supplies both amplifiers; low thermal resistance (107.4°C/W θJA). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Rated for –40°C to +125°C ambient operation - validated for engine bay and power electronics module deployment. |
| Low 1/f noise corner | 10Hz corner frequency - preserves signal integrity in low-frequency applications like battery cell voltage monitoring and temperature sensing. |
| High capacitive load tolerance | Stable with ≥10nF load - eliminates external compensation components in cable driver and sample-and-hold designs. |
| Rail-to-rail output stage | VCC– + 0.1V to VCC+ – 1V swing - maximizes usable output range in ±12V or ±15V systems without clipping. |
| Fast settling to 0.01% | 640ns (10V step, ±15V) - enables high-throughput sampling in real-time motor position feedback loops. |
| Robust ESD protection | ±500V HBM - meets automotive manufacturing handling requirements and reduces field failure risk. |
Applications
| Traction Inverter Current Sensing | Onboard Charger Voltage Regulation |
|---|---|
Use Scenario: Amplifying mV-level shunt resistor voltage drops in high-current (≥300A) inverter legs under PWM switching noise. IC Role / Device Role / Timing Role: Precision low-noise instrumentation amplifier front-end with fast transient response for real-time overcurrent protection. Use Value: 10.5nV/√Hz noise floor and 27V/μs slew rate enable accurate current reconstruction during fast IGBT switching edges without aliasing or distortion. |
Use Scenario: Error amplification in isolated flyback or LLC converter feedback paths requiring tight output voltage regulation (<±1%) across temperature. IC Role / Device Role / Timing Role: High-PSRR, low-drift op-amp in secondary-side voltage reference loop with optocoupler interface. Use Value: 90dB min PSRR and 1.7μV/°C offset drift ensure stable regulation despite primary-side supply ripple and thermal cycling in under-hood environments. |
| Automatic Transmission Solenoid Driver | DC/DC Converter Feedback Loop |
Use Scenario: Closed-loop current control of linear solenoids used in shift-by-wire hydraulic valve actuators. IC Role / Device Role / Timing Role: Fast-settling transconductance amplifier converting PWM duty cycle into precise analog current command. Use Value: 430ns to 0.1% settling and 20mA short-circuit output support rapid solenoid response (<5ms) required for smooth gear transitions. |
Use Scenario: Compensating high-frequency switching noise in 400V–12V bidirectional DC/DC converters for 48V mild-hybrid systems. IC Role / Device Role / Timing Role: Low-noise, high-GBW error amplifier stabilizing voltage-mode control loops operating above 200kHz. Use Value: 5.9MHz GBW and 57° phase margin at unity gain ensure loop stability with minimal compensation components in compact PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188QDGKRQ1 | Zero-drift architecture; 0.03μV/°C offset drift vs. 1.7μV/°C; lower 1/f noise but 2MHz GBW vs. 5.9MHz. | Better for ultra-low-drift DC-coupled sensors; less suitable for high-speed transient capture due to lower bandwidth. | Select OPA2188QDGKRQ1 when offset drift dominates error budget; choose TLE2142QDRQ1 when speed and noise floor are primary constraints. |
| LM7332QMA/NOPB | Higher 22V/μs slew rate but higher 20nV/√Hz noise; rated only to 105°C (not Grade 1); no 10nF load stability guarantee. | Acceptable for cabin electronics; not qualified for powertrain modules requiring full AEC-Q100 Grade 1 compliance. | Use LM7332QMA/NOPB in non-safety-critical infotainment or body control; retain TLE2142QDRQ1 for ASIL-B/C-relevant powertrain functions. |
Compared with OPA2188QDGKRQ1 and LM7332QMA/NOPB, the TLE2142QDRQ1 uniquely balances automotive-grade temperature range, 10nF capacitive load stability, and sub-11nV/√Hz noise at 1kHz - making it the only option among the three qualified for high-bandwidth, high-reliability traction inverter signal chains.
Availability
TLE2142QDRQ1 is available at Aetrix Electronics and suitable for traction inverter current sensing, onboard charger voltage regulation, and automatic transmission solenoid control requiring stable component supply across extended temperature ranges and automotive production lifecycles.
Supply support for TLE2142QDRQ1 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 automotive IC design expertise and ISO/TS 16949-certified manufacturing.
The TLE2142QDRQ1 belongs to TI's Excalibur™ precision op-amp family, engineered specifically for high-reliability automotive powertrain and charging systems where low noise, high speed, and extended temperature operation are mandatory.
FAQ
What is the operating temperature range for the TLE2142QDRQ1?
The TLE2142QDRQ1 is AEC-Q100 Grade 1 qualified and specified for continuous operation from –40°C to +125°C ambient temperature. This rating is validated across all electrical parameters in the datasheet, including input offset voltage drift (1.7μV/°C), CMRR (>85dB), and output drive capability - ensuring reliability in engine compartment and power electronics module environments.
Does the TLE2142QDRQ1 support single-supply operation?
Yes, the TLE2142QDRQ1 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 use in 5V, 12V, or 24V systems without level-shifting circuitry - confirmed by test conditions in Section 4.3 of the SLOS628A datasheet.
What is the maximum capacitive load the TLE2142QDRQ1 can drive stably?
The TLE2142QDRQ1 is characterized for stable operation with capacitive loads up to 10nF, as explicitly stated in the Detailed Description section (Section 5.1) of the datasheet. At this load, bandwidth reduces to 1.8MHz, but phase margin remains sufficient for robust closed-loop performance - eliminating need for external series resistors in cable driver or ADC buffer applications.
Is the TLE2142QDRQ1 pin-compatible with legacy industry-standard op-amps?
Yes, the TLE2142QDRQ1 is explicitly described in the datasheet as "a pin-compatible upgrade to standard industry products" in the Description section. Its SOIC-8 (D) package and standard dual-op-amp pinout (IN+, IN–, OUT, VCC± per channel) match industry conventions such as the LM2904 and TL082 footprints, enabling drop-in replacement in existing designs with improved noise, speed, and temperature performance.
What is the short-circuit output current specification for the TLE2142QDRQ1?
The TLE2142QDRQ1 provides a minimum short-circuit output current of 20mA, as specified in the Features list and verified in Section 4.8 Electrical Characteristics (IOS = –25mA to –50mA for negative swing, +20mA to +31mA for positive swing at 25°C). Internal current limiting protects the device during fault conditions, though thermal limits must be observed to avoid exceeding 150°C junction temperature.
TLE2142QDRQ1 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:
- 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:
- 290 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:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2142QDRQ1 FAQ
1.How can I place an order for TLE2142QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2142QDRQ1 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 TLE2142QDRQ1 reliable?
The price and inventory of TLE2142QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2142QDRQ1 is usually 5 days.
3.What payment methods are accepted for TLE2142QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2142QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2142QDRQ1?
TLE2142QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2142QDRQ1 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 TLE2142QDRQ1?
For technical support, including TLE2142QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2142QDRQ1 requirements.
6.How does Aetrix verify that TLE2142QDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLE2142QDRQ1 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 TLE2142QDRQ1 meets industry standards.
7.What is the process for return or replacement of TLE2142QDRQ1?
All TLE2142QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2142QDRQ1, 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 TLE2142QDRQ1 part is unused and in its original packaging.
Return procedure for TLE2142QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2142QDRQ1 Tags
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LM358DT
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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LM2904DGKR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM2902PWR
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LM2902DR
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LM358P
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