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Texas Instruments TLE2142CDR
- Part No.:
- TLE2142CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2142CDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,455
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Product details
Overview
TLE2142CDR from Texas Instruments is a dual-channel, low-noise, high-speed precision operational amplifier built on the Excalibur complementary bipolar process. It delivers 27V/μs minimum slew rate, 5.9MHz gain-bandwidth product, 10.5nV/√Hz input voltage noise at 1kHz, ±22V supply range, and 500μV maximum input offset voltage at 25°C - enabling high-fidelity signal conditioning in EV charging infrastructure and industrial AC-DC power systems.
For engineers reviewing the TLE2142CDR datasheet, TLE2142CDR pinout, TLE2142CDR application, or TLE2142CDR equivalent, key selection considerations include its 8-pin SOIC package, rail-to-rail output swing capability (VCC− + 0.1V to VCC+ − 1V), fast 400ns settling time to 0.01%, and robust 10000pF capacitive load drive - critical for precision sensor interfaces and fast actuator control loops.
Technical Context
The TLE2142CDR integrates a symmetrical input stage optimized for low audio-band noise (10.5nV/√Hz) with a 10Hz 1/f corner and simultaneous 40V/μs typical slew rate under 800pF loads. Its internal compensation ensures stable unity-gain operation while supporting high closed-loop bandwidths up to 668kHz at 2VPP output swing.
It operates across ±2V to ±22V dual supplies or 4V to 44V single supply, features differential input tolerance to ±44V, and supports comparator-mode operation with 200ns open-loop propagation delay at TTL levels. Saturation recovery is specified at 150ns, and short-circuit output current exceeds 20mA minimum.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 27V/μs minimum - enables accurate reproduction of fast transients in motor control feedback paths |
| Gain-Bandwidth Product | 5.9MHz - supports stable closed-loop gains up to ~100 at 60kHz for anti-aliasing filter design |
| Input Voltage Noise | 10.5nV/√Hz at 1kHz - preserves SNR in precision instrumentation front-ends |
| Input Offset Voltage | 500μV max at 25°C - reduces DC error in high-gain current-sense amplifiers |
| Supply Range | ±2V to ±22V (dual) or 4V to 44V (single) - accommodates wide-input industrial power rails |
| Capacitive Load Drive | 10000pF - directly drives long cables or ADC input capacitance without external isolation |
| Settling Time | 400ns to 0.01% for 10V step - meets timing requirements in high-speed data acquisition 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–) | Connects to internal 1kΩ resistor for input offset trimming; used with external potentiometer |
| 2 | Inverting Input (IN−) | Differential input node for negative feedback configuration; rated for ±44V differential input |
| 3 | Non-Inverting Input (IN+) | Differential input node accepting common-mode voltages from VCC− to VCC+ − 0.3V |
| 4 | VCC− | Negative supply rail; supports split-supply operation down to −22V |
| 5 | Offset Null (IN+) | Connects to internal 5kΩ resistor; forms nulling network with Pin 1 for VOS adjustment |
| 6 | Output (OUT) | Class-AB output stage delivering ±20mA short-circuit current and rail-to-rail swing |
| 7 | VCC+ | Positive supply rail; supports up to +22V in dual mode or +44V in single-supply configuration |
| 8 | NC | No connect - internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 10Hz - minimizes drift-induced errors in DC-coupled sensor amplification |
| Fast saturation recovery | 150ns - prevents pulse distortion in overdriven comparator applications |
| High output drive strength | 20mA min short-circuit current - eliminates need for external buffer in driving 50Ω transmission lines |
| Wide supply flexibility | 4V to 44V single or ±2V to ±22V dual - simplifies power architecture in mixed-voltage industrial systems |
| Input overvoltage protection | Differential input rating ±44V - withstands transient surges in motor drive current-sense circuits |
Applications
| EV Charging Infrastructure | Industrial AC-DC Power Supplies |
|---|---|
Use Scenario: Precision DC-link voltage monitoring and isolation amplifier feedback in 150kW+ EV chargers. IC Role / Device Role / Timing Role: High-speed, low-drift difference amplifier conditioning shunt-based current measurements. Use Value: 10.5nV/√Hz noise and 400ns settling ensure <0.1% measurement accuracy at 10kHz PWM switching frequencies. |
Use Scenario: Voltage regulation loop compensation and isolated output sensing in telecom rectifiers. IC Role / Device Role / Timing Role: Error amplifier in secondary-side feedback circuit with optocoupler interface. Use Value: 27V/μs slew rate and 5.9MHz GBW maintain phase margin >57° across temperature and load variations. |
| Fire Alarm Control Panel (FACP) | String Inverter Monitoring |
Use Scenario: Smoke detector analog signal conditioning and multi-zone threshold comparison. IC Role / Device Role / Timing Role: Low-noise preamplifier feeding ADC and comparator for rapid alarm triggering. Use Value: 500μV VOS max and 150ns saturation recovery enable sub-100ms fault detection latency. |
Use Scenario: String-level IV curve tracing and leakage current sensing in solar inverters. IC Role / Device Role / Timing Role: High-impedance buffer and precision gain stage for photovoltaic panel voltage sampling. Use Value: 70MΩ input resistance and 10000pF load drive capability eliminate external buffering in high-capacitance PCB traces. |
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 IQ (3.6mA), but narrower supply range (±18V max) and no offset null pins | Better for ultra-low-noise audio or metrology; less suitable for high-voltage industrial sensing | Select when noise dominates design and supply rails ≤±18V; avoid if offset trimming or >±22V operation required |
| AD8620ARZ | FEMTOamp bias current (1pA), higher CMRR (130dB), but slower slew rate (25V/μs) and lower GBW (25MHz) | Preferred for high-impedance pH or piezoelectric sensors; less optimal for fast transient response | Choose for femtoamp-level source impedance interfaces; not recommended for >100kHz closed-loop bandwidth needs |
Compared with OPA211IDR and AD8620ARZ, the TLE2142CDR uniquely balances high-voltage operation (±22V), integrated offset nulling, and robust capacitive load drive - making it the only option among the three qualified for direct replacement in legacy industrial designs requiring >±20V rails and trimmable VOS.
Availability
TLE2142CDR is available at Aetrix Electronics and suitable for EV charging infrastructure, industrial AC-DC power supplies, and fire alarm control panel (FACP) applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLE2142CDR 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 solutions, with decades of expertise in high-reliability op-amp design for industrial and automotive markets.
The TLE214x family was engineered for high-speed precision signal conditioning in harsh environments - targeting applications demanding low noise, fast settling, and wide supply tolerance without sacrificing DC accuracy.
FAQ
What is the maximum supply voltage rating for the TLE2142CDR?
The TLE2142CDR supports absolute maximum supply voltages of +22V on VCC+ and −22V on VCC−, enabling operation across ±2V to ±22V dual supplies or 4V to 44V single supply. Exceeding these limits risks permanent damage per Absolute Maximum Ratings table in the datasheet. The TLE2142CDR is commonly used in industrial AC-DC supplies where ±15V rails are standard.
Does the TLE2142CDR support rail-to-rail output swing?
The TLE2142CDR does not provide full rail-to-rail output swing. Its output swings from VCC− + 0.1V to VCC+ − 1V under load, as specified in the datasheet. This 1V headroom at the positive rail and 100mV at the negative rail ensures stable operation into heavy loads. For true rail-to-rail output, consider alternatives like the OPA2333, but note the TLE2142CDR's superior drive strength and noise performance.
Can the TLE2142CDR be used as a comparator?
Yes, the TLE2142CDR can be used as a comparator in non-critical applications. The datasheet explicitly states both TLE214x and TLE214xA versions may serve as comparators, with typical open-loop propagation delay of 200ns at TTL supply levels. However, it lacks dedicated comparator features like internal hysteresis or latch outputs, so external hysteresis is recommended for noise immunity. The TLE2142CDR's 150ns saturation recovery aids fast decision-making in overcurrent detection circuits.
What is the purpose of Pins 1 and 5 on the TLE2142CDR?
Pins 1 and 5 are offset null terminals connected to internal 1kΩ and 5kΩ resistors, respectively, forming a trimming network for input offset voltage. A 20kΩ potentiometer between these pins (wiper to VCC−) allows manual VOS adjustment down to near-zero. This feature is essential in precision DC-coupled applications such as strain gauge amplifiers where residual offset directly impacts measurement accuracy. The TLE2142CDR's nulling capability distinguishes it from many modern op-amps lacking this provision.
Is the TLE2142CDR suitable for driving ADC inputs directly?
Yes, the TLE2142CDR is well-suited for driving SAR and delta-sigma ADC inputs due to its 400ns settling time to 0.01%, 10000pF capacitive load drive, and low 10.5nV/√Hz noise. Its output can settle within one ADC conversion cycle even at 1MSPS rates when paired with mid-resolution converters. The TLE2142CDR's ability to drive high-impedance sampling capacitors without external isolation makes it ideal for precision data acquisition modules in industrial PLCs.
TLE2142CDR 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:
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2142CDR FAQ
1.How can I place an order for TLE2142CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2142CDR 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 TLE2142CDR reliable?
The price and inventory of TLE2142CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2142CDR is usually 5 days.
3.What payment methods are accepted for TLE2142CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2142CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2142CDR?
TLE2142CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2142CDR 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 TLE2142CDR?
For technical support, including TLE2142CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2142CDR requirements.
6.How does Aetrix verify that TLE2142CDR is sourced from the original manufacturer or authorized distributors?
All TLE2142CDR 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 TLE2142CDR meets industry standards.
7.What is the process for return or replacement of TLE2142CDR?
All TLE2142CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2142CDR, 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 TLE2142CDR part is unused and in its original packaging.
Return procedure for TLE2142CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2142CDR Tags
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