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Texas Instruments TLE2021CPWR
- Part No.:
- TLE2021CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLE2021CPWR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,671
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Product details
Overview
TLE2021CPWR from Texas Instruments is a single-channel, precision operational amplifier using the Excalibur bipolar process, delivering 2 MHz unity-gain bandwidth, 0.65 V/µs slew rate, and 100 µV max input offset voltage at ±15 V supply. It operates across –55°C to +125°C, supports rail-to-rail common-mode input (including negative rail), and features phase-reversal protection-ideal for low-level signal conditioning in military-grade sensor front-ends and precision instrumentation.
For engineers reviewing the TLE2021CPWR datasheet, TLE2021CPWR pinout, TLE2021CPWR application, or TLE2021CPWR equivalent, key selection criteria include its 300 µA max supply current, 19 nV/√Hz input voltage noise, 136 dB open-loop gain, ±15 V / 5 V dual-supply compatibility, and military-temperature-rated ceramic DIP packaging.
Technical Context
The TLE2021CPWR employs Texas Instruments' Excalibur complementary bipolar process with isolated vertical PNP transistors, enabling significantly improved AC performance over legacy precision op-amps like the OP21 while retaining ultra-stable DC parameters. Its bias circuit ensures minimal drift-0.005 µV/month offset voltage drift and only 10 µA supply-current change over the full military temperature range.
Designed for single-supply (5 V) and split-supply (±15 V) operation, it offers a common-mode input range extending to the negative rail and phase-reversal protection that prevents output inversion when inputs go below VCC–-a critical reliability feature in fault-prone industrial sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 300 µA max - enables ultra-low-power precision amplification in battery-backed or thermally constrained systems |
| Unity-Gain Bandwidth | 2 MHz - supports stable closed-loop operation up to ~1.2 MHz with adequate phase margin (46°) |
| Slew Rate | 0.65 V/µs - allows faithful reproduction of signals up to ~200 kHz at 1 VPP without distortion |
| Input Offset Voltage | 100 µV max - ensures ≤0.1% gain error in 1 V full-scale 100× gain stages |
| Input Voltage Noise | 19 nV/√Hz - critical for preserving SNR in µV-level sensor outputs (e.g., strain gauges, thermopiles) |
| CMRR | 115 dB max - rejects >3 million:1 common-mode interference in differential measurement setups |
| Operating Temp Range | –55°C to +125°C - qualified for airborne, vehicle under-hood, and defense electronics deployment |
Pinout & Package
The TLE2021CPWR is packaged in an 8-pin ceramic dual in-line package (CDIP, JG), hermetically sealed for high-reliability military and aerospace use. Pin 1 is OFFSET N1 (nulling), Pin 2 is IN–, Pin 3 is IN+, Pin 4 is VCC / GND (dual-function ground/supply return), Pin 5 is OFFSET N2 (nulling), Pin 6 is OUT, Pin 7 is VCC+, and Pin 8 is NC (no connect).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Nulling terminal for external offset trim via potentiometer; used with Pin 5 to cancel VIO |
| 2 | IN– | Inverting input; accepts differential or single-ended signals with rail-to-rail common-mode range |
| 3 | IN+ | Non-inverting input; phase-reversal protected-safe even if driven below VCC– |
| 4 | VCC / GND | Ground reference for single-supply operation or negative supply return in split-supply mode |
| 5 | OFFSET N2 | Second nulling terminal; completes external offset adjustment network with Pin 1 |
| 6 | OUT | Amplified output; capable of ±13.6 V swing into 10 kΩ load at ±15 V supply |
| 7 | VCC+ | Positive supply input; rated up to +20 V absolute maximum |
| 8 | NC | No internal connection; must remain unconnected per design |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal protection | Prevents output latch-up or polarity inversion when IN+ or IN– drops below VCC–, eliminating system faults in transient conditions |
| Rail-to-rail common-mode input | Accepts inputs down to VCC– (e.g., 0 V in 5 V single-supply), enabling direct interfacing with grounded sensors |
| Low long-term drift | 0.005 µV/month offset voltage drift ensures calibration stability over years in field-deployed equipment |
| High open-loop gain | 6.5 V/µV (136 dB) enables <0.001% closed-loop gain error in precision gain blocks |
| Military temperature qualification | Characterized and tested across –55°C to +125°C per MIL-PRF-38535, supporting Class B and Class S applications |
Applications
| Strain Gauge Signal Conditioning | Thermocouple Amplifier Front-End |
|---|---|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring systems. IC Role / Device Role / Timing Role: Precision difference amplifier with low noise and rail-to-rail input, rejecting bridge common-mode voltage while boosting mV-level delta signals. Use Value: 19 nV/√Hz input noise and 100 µV max VIO preserve resolution down to <1 µε strain; phase-reversal protection prevents false alarms during power-up transients. | Use Scenario: Cold-junction compensation and linearization of Type K thermocouple outputs in industrial furnace controllers. IC Role / Device Role / Timing Role: Low-drift, low-bias-current instrumentation amplifier stage accepting thermocouple's high-impedance source and ambient sensor input. Use Value: 50 nA max input bias current avoids voltage drop errors across thermocouple leads; 0.005 µV/month drift maintains calibration integrity over multi-year maintenance cycles. |
| Aerospace Sensor Interface Module | Military Data Acquisition Channel |
Use Scenario: Signal conditioning for pressure transducers in UAV flight control systems operating at extreme ambient temperatures. IC Role / Device Role / Timing Role: High-reliability, radiation-tolerant (ceramic CDIP) op-amp in analog front-end, handling both 5 V and ±15 V supply configurations. Use Value: –55°C to +125°C operation and hermetic ceramic packaging ensure uninterrupted function in stratospheric or desert environments; 2 MHz bandwidth supports fast-response pressure sampling. | Use Scenario: Analog input channel in ruggedized tactical radio baseband processing, digitizing sensor telemetry under EMI-heavy battlefield conditions. IC Role / Device Role / Timing Role: Precision buffer and level-shifter between sensor outputs and ADC drivers, leveraging high CMRR and supply rejection. Use Value: 115 dB CMRR and 120 dB kSVR suppress coupling from switching power supplies and RF front-end leakage, maintaining >16-bit effective resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA27GP | Higher 2.5 µV max VIO, 1.7 MHz GBW, 1.5 mA supply current - less suitable for ultra-low-power designs | Optimized for lab-grade bench instruments; lacks military temp rating and phase-reversal protection | Select when ultimate DC accuracy outweighs power and ruggedness requirements |
| LM108AJ/883 | Chopper-stabilized architecture; 10 µV max VIO, but 1.5 MHz GBW and no phase-reversal protection | Used in zero-drift metrology; incompatible with fast-slewing or wideband sensor signals | Choose only for sub-µV offset-critical DC measurements where bandwidth <100 kHz suffices |
Compared with OPA27GP and LM108AJ/883, the TLE2021CPWR uniquely balances military-grade temperature resilience, rail-to-rail input capability, phase-reversal immunity, and sub-300 µA quiescent current-making it irreplaceable in high-integrity, wide-temperature analog signal chains where both precision and robustness are non-negotiable.
Availability
TLE2021CPWR is available at Aetrix Electronics and suitable for aerospace avionics, defense electronics, and industrial process control requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLE2021CPWR 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 TLE202xM family was engineered specifically for military, aerospace, and industrial applications demanding precision performance under extreme thermal stress and long-term field deployment-leveraging Excalibur process innovations to unify speed, stability, and ruggedness.
FAQ
What is the maximum supply voltage rating for the TLE2021CPWR?
The TLE2021CPWR has an absolute maximum supply voltage rating of +20 V on VCC+ and –20 V on VCC– (or VCC/GND). Operation beyond these limits risks permanent damage. Recommended operating range is ±2 V to ±20 V, with full specifications guaranteed at ±15 V and 5 V single-supply configurations. Always observe derating curves in the dissipation ratings table for elevated ambient temperatures.
Does the TLE2021CPWR support true rail-to-rail output swing?
No, the TLE2021CPWR does not provide rail-to-rail output. At ±15 V supply, its output swings to +13.8 V and –13.6 V into a 10 kΩ load-approximately 1.2 V to 1.4 V from each rail. This limitation is inherent to its bipolar output stage. For applications requiring full rail compliance, consider modern CMOS rail-to-rail op-amps-but note they lack the TLE2021CPWR's military temperature rating and phase-reversal protection.
How is phase-reversal protection implemented in the TLE2021CPWR?
The TLE2021CPWR integrates internal clamping circuitry that prevents output polarity inversion when either input falls below the negative supply rail (VCC–). Unlike conventional op-amps that may latch or reverse output state under such conditions, the TLE2021CPWR maintains predictable behavior-critical in sensor interfaces where transient overvoltage or cold-start conditions could drive inputs negative. This is a hardwired feature of the Excalibur process design, not a configurable option.
Can the TLE2021CPWR be used in single-supply 3.3 V systems?
No-the TLE2021CPWR is not characterized or specified for 3.3 V operation. Its minimum recommended supply is ±2 V (i.e., 4 V total) or 5 V single-supply. At 3.3 V, key parameters-including slew rate, bandwidth, and output swing-degrade significantly and fall outside guaranteed specs. For 3.3 V precision applications, TI recommends alternatives like the OPA333 or TLV277x families, which are explicitly designed for low-voltage operation.
What is the purpose of Pins 1 and 5 (OFFSET N1 and OFFSET N2) on the TLE2021CPWR?
Pins 1 and 5 are dedicated offset-nulling terminals. Connecting a 10 kΩ potentiometer between them-with the wiper tied to VCC– (or ground in single-supply)-allows manual trimming of input offset voltage to <10 µV. This is essential in high-gain DC-coupled stages where even 100 µV VIO causes significant output error. The TLE2021CPWR's datasheet provides exact resistor values and layout guidance to avoid introducing noise or instability during nulling.
TLE2021CPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.65V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 240µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLE2021CPWR FAQ
1.How can I place an order for TLE2021CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021CPWR 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 TLE2021CPWR reliable?
The price and inventory of TLE2021CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021CPWR is usually 5 days.
3.What payment methods are accepted for TLE2021CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021CPWR?
TLE2021CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021CPWR 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 TLE2021CPWR?
For technical support, including TLE2021CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021CPWR requirements.
6.How does Aetrix verify that TLE2021CPWR is sourced from the original manufacturer or authorized distributors?
All TLE2021CPWR 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 TLE2021CPWR meets industry standards.
7.What is the process for return or replacement of TLE2021CPWR?
All TLE2021CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021CPWR, 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 TLE2021CPWR part is unused and in its original packaging.
Return procedure for TLE2021CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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