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Texas Instruments TLE2021AQDREP
- Part No.:
- TLE2021AQDREP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2021AQDREP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,454
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Product details
Overview
TLE2021AQDREP from Texas Instruments is a precision single operational amplifier using Excalibur bipolar technology, delivering 2 MHz unity-gain bandwidth, 0.45 V/μs slew rate, and 100 μV max input offset voltage across −40°C to 125°C. It operates on ±15 V or 5-V single supply with phase-reversal protection and rail-to-rail common-mode input down to the negative rail-ideal for low-level sensor signal conditioning in automotive engine control units.
For engineers reviewing the TLE2021AQDREP datasheet, TLE2021AQDREP pinout, TLE2021AQDREP application, or TLE2021AQDREP equivalent, key selection criteria include its extended temperature qualification (−40°C to 125°C), low 300 μA max supply current, 19 nV/√Hz input voltage noise at 1 kHz, and SOIC-8 packaging with offset null capability.
Technical Context
The TLE2021AQDREP employs a complementary bipolar Excalibur process with isolated vertical PNP transistors, enabling higher unity-gain bandwidth and slew rate versus legacy OP21-class amplifiers. Its bias circuit ensures stable dc parameters over time and temperature, maintaining precision performance across automotive life cycles.
Phase-reversal protection prevents output inversion when either input drops below the negative supply rail-a critical feature for single-supply interfacing with sensors whose outputs may transiently undershoot ground. The device supports both split-supply (±15 V) and single-supply (5 V) operation with full-spec performance across the entire −40°C to 125°C range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 300 μA max - enables ultra-low-power operation in always-on automotive subsystems without compromising precision. |
| Unity-Gain Bandwidth | 2 MHz typ at ±15 V - supports stable closed-loop gain ≥1 with adequate phase margin (46°) for sensor front-end filtering. |
| Slew Rate | 0.45 V/μs min at ±15 V - sufficient for 10 kHz full-scale sine wave output without distortion in analog-to-digital interface stages. |
| Input Offset Voltage | 100 μV max at 25°C - ensures ≤0.1% error in 100 mV full-scale bridge sensor measurements without trimming. |
| Input Voltage Noise | 19 nV/√Hz typ at 1 kHz - preserves signal integrity in high-gain, low-frequency sensor amplification (e.g., thermopile, strain gauge). |
| Common-Mode Input Range | Includes negative rail (VICR = −15 V to +13.2 V at ±15 V) - allows direct interface with grounded-sensor outputs in single-ended configurations. |
| Operating Temperature | −40°C to 125°C - qualified per JEDEC standards including HAST, temperature cycling, and bond intermetallic life for automotive under-hood use. |
Pinout & Package
Package: SOIC-8 (D package), 8-pin surface-mount, 3.9 mm × 4.9 mm body, 1.27 mm pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset Null Input 1 | Connects to external potentiometer wiper for manual input offset trimming; required for sub-10 μV system-level calibration. |
| 2 (IN−) | Inverting Input | Differential input node; high impedance (50 nA max bias current) enables high-Z sensor interfaces without loading. |
| 3 (IN+) | Non-Inverting Input | Differential input node; common-mode range extends to negative rail, supporting true single-supply operation. |
| 4 (VCC−/GND) | Negative Supply / Ground | Reference terminal for split-supply (−15 V) or single-supply (GND) operation; must be low-impedance for noise immunity. |
| 5 (NC) | No Connection | Internally unconnected; must remain floating-no routing or grounding permitted. |
| 6 (VCC+) | Positive Supply | Accepts +15 V (split) or +5 V (single); internal regulation not provided-requires clean, decoupled supply. |
| 7 (OUT) | Output | Capable of ±20 mA drive; specified output swing is ±13.6 V at ±15 V supply, enabling direct interface with ADC reference buffers. |
| 8 (OFFSET N2) | Offset Null Input 2 | Second terminal of offset null network; used with Pin 1 to balance input stage quiescent currents. |
Key Features
| Feature | Design Value |
|---|---|
| Excalibur Process Technology | Vertical PNP isolation delivers 2× higher unity-gain bandwidth vs. standard bipolar op amps-enabling faster settling in closed-loop sensor systems. |
| Phase-Reversal Protection | Prevents output latch-up or polarity inversion when IN− or IN+ falls below VCC−, eliminating need for external clamping diodes in grounded-sensor designs. |
| Offset Voltage Drift | 2 μV/°C max tempco and 0.005 μV/month long-term drift ensure <10 μV total drift over 10-year automotive service life at 85°C ambient. |
| Low Input Bias Current | 50 nA max enables use with high-impedance sources (e.g., pH electrodes, piezoelectric sensors) without significant signal attenuation. |
| Extended Temperature Qualification | JEDEC-qualified for −40°C to 125°C with HAST, autoclave, and electromigration testing-meets AEC-Q100 stress requirements for engine control modules. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Pressure Transmitter |
|---|---|
Use Scenario: Amplifying millivolt-level output from a silicon piezoresistive pressure sensor in diesel common-rail fuel systems. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with rail-to-rail input and phase-reversal immunity during cranking transients. Use Value: 100 μV max offset and 2 μV/°C drift maintain ±0.25% full-scale accuracy across −40°C to 125°C engine bay temperatures. | Use Scenario: Conditioning output of a 4–20 mA loop-powered pressure sensor in hazardous-area oil & gas field instruments. IC Role / Device Role / Timing Role: Low-power, high-PSRR buffer and level-shifter converting sensor output to 0–5 V for SAR ADC input. Use Value: 120 dB PSRR and 300 μA supply current enable stable measurement in noisy 24 VDC industrial environments with minimal self-heating. |
| Medical Patient Monitor ECG Front-End | Aerospace Avionics Signal Conditioning |
Use Scenario: First-stage amplification of microvolt-level biopotential signals from dry-electrode ECG leads. IC Role / Device Role / Timing Role: Ultra-low-noise (19 nV/√Hz), low-input-bias-current preamplifier with offset null for baseline stabilization. Use Value: 0.005 μV/month long-term drift ensures calibration stability over 6-month clinical deployment intervals without recalibration. | Use Scenario: Signal conditioning for RTD-based temperature sensing in flight control surface actuators. IC Role / Device Role / Timing Role: Precision ratiometric amplifier in 3-wire RTD bridge circuits operating at −55°C to 125°C extremes. Use Value: Qualified to −55°C to 125°C (M-suffix variants) with 136 dB open-loop gain ensures <0.01% nonlinearity error in critical airframe thermal monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift auto-zero architecture; 0.02 μV/°C offset drift vs. TLE2021AQDREP's 2 μV/°C; 17 μV max offset but higher 550 μA supply current. | Better for sub-μV drift-critical medical devices; unsuitable for >85°C continuous operation due to limited 125°C max rating and no extended-temp qualification. | Select OPA2333AIDR only when ultra-low drift dominates over power and temperature robustness. |
| LM7332MA/NOPB | Rail-to-rail input/output; 2.5 mA supply current; 20 V/μs slew rate; no offset null pins; rated −40°C to 125°C but not enhanced product (no DMS, no pedigree documentation). | Better for high-speed, rail-to-rail I/O needs (e.g., active filters); lacks phase-reversal protection and offset trim-requires external compensation in sensor interfaces. | Select LM7332MA/NOPB only when speed and rail-to-rail swing outweigh precision stability and automotive pedigree requirements. |
Compared with OPA2333AIDR and LM7332MA/NOPB, the TLE2021AQDREP uniquely combines extended-temperature JEDEC qualification, offset null capability, phase-reversal protection, and sub-300 μA supply current-making it irreplaceable in safety-critical automotive and aerospace signal chains where long-term parameter stability is non-negotiable.
Availability
TLE2021AQDREP is available at Aetrix Electronics and suitable for automotive engine control units, industrial pressure transmitters, and medical patient monitor front-ends requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLE2021AQDREP 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 headquartered in Dallas, Texas, designing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and communications markets.
The TLE202x-EP product line was engineered specifically for high-reliability applications demanding extended temperature operation, controlled baseline manufacturing, and enhanced DMS support-targeting automotive under-hood, avionics, and downhole oilfield electronics.
FAQ
What is the maximum operating temperature range for the TLE2021AQDREP?
The TLE2021AQDREP is characterized and qualified for continuous operation from −40°C to 125°C. This extended temperature range is verified per JEDEC standards including biased 85/85 testing, temperature cycling, and HAST, making it suitable for automotive engine control modules and industrial environments where ambient temperatures exceed 105°C.
Does the TLE2021AQDREP support single-supply operation?
Yes, the TLE2021AQDREP is fully specified for 5-V single-supply operation with common-mode input voltage range extending to the negative rail (GND). At 5 V, it delivers 1.2 MHz unity-gain bandwidth, 0.5 V/μs slew rate, and maintains 100 μV max input offset voltage-enabling direct interface with grounded sensors without level-shifting circuitry.
What is the purpose of Pins 1 and 8 (OFFSET N1 and OFFSET N2) on the TLE2021AQDREP?
Pins 1 and 8 provide external offset null capability for the TLE2021AQDREP. Connecting a 10-kΩ potentiometer between these pins-with its wiper tied to VCC−-allows manual adjustment of input stage quiescent current imbalance, reducing system-level offset to <5 μV. This is essential for high-accuracy DC measurement applications such as precision weigh scales and laboratory instrumentation.
How does phase-reversal protection function in the TLE2021AQDREP?
The TLE2021AQDREP incorporates internal phase-reversal protection circuitry that prevents output polarity inversion when either input (IN+ or IN−) falls below the negative supply rail (VCC−). This eliminates the need for external clamping diodes in single-supply sensor interfaces-such as thermocouple amplifiers-where input transients may undershoot ground during power-up or fault conditions.
Is the TLE2021AQDREP pin-compatible with standard industry op amps like the LM324 or TL071?
No, the TLE2021AQDREP is not pin-compatible with LM324 or TL071. While all are SOIC-8 packages, the TLE2021AQDREP uses Pins 1 and 8 for offset null (unavailable on LM324/TL071) and Pin 5 as NC (vs. LM324's second op amp input). Direct replacement would require PCB layout revision and validation of offset null network integration.
TLE2021AQDREP 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:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.65V/µs
- Gain Bandwidth Product:
- 1.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 25 nA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 200µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2021AQDREP FAQ
1.How can I place an order for TLE2021AQDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021AQDREP 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 TLE2021AQDREP reliable?
The price and inventory of TLE2021AQDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021AQDREP is usually 5 days.
3.What payment methods are accepted for TLE2021AQDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021AQDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021AQDREP?
TLE2021AQDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021AQDREP 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 TLE2021AQDREP?
For technical support, including TLE2021AQDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021AQDREP requirements.
6.How does Aetrix verify that TLE2021AQDREP is sourced from the original manufacturer or authorized distributors?
All TLE2021AQDREP 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 TLE2021AQDREP meets industry standards.
7.What is the process for return or replacement of TLE2021AQDREP?
All TLE2021AQDREP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021AQDREP, 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 TLE2021AQDREP part is unused and in its original packaging.
Return procedure for TLE2021AQDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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