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Texas Instruments TLE2021CPW
- Part No.:
- TLE2021CPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLE2021CPW.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,050
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Product details
Overview
TLE2021CPW from Texas Instruments is a precision, high-speed, low-power single operational amplifier using Excalibur bipolar process technology. It delivers 2 MHz unity-gain bandwidth, 0.45 V/μs slew rate, and 100 μV max input offset voltage at 25°C, operating from ±15 V or 5 V single supply. It serves in low-level signal conditioning for sensor interfaces and data acquisition systems requiring rail-to-rail input (including negative rail) and phase-reversal protection.
For engineers reviewing the TLE2021CPW datasheet, TLE2021CPW pinout, TLE2021CPW application, or TLE2021CPW equivalent, key selection criteria include its 300 μA max supply current, 136 dB open-loop gain, 19 nV/√Hz input voltage noise, ±15 V absolute maximum supply rating, and TSSOP-8 package compatibility with space-constrained industrial and test equipment designs.
Technical Context
The TLE2021CPW employs a complementary bipolar Excalibur process with isolated vertical PNP transistors to achieve enhanced unity-gain bandwidth and slew rate over legacy precision op-amps like the OP21. Its internal bias circuit ensures stable dc parameters across temperature and time.
It features phase-reversal protection that prevents output inversion when either input falls below the negative supply rail, and supports operation with common-mode input voltage extending to the negative rail - enabling true single-supply operation in 5 V systems without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 300 μA max - enables battery-powered or ultra-low-power analog front-ends |
| Unity-Gain Bandwidth | 2 MHz typ - supports medium-speed signal amplification up to ~200 kHz closed-loop |
| Slew Rate | 0.45 V/μs min - limits full-power bandwidth to ~71 kHz for 10 Vpp signals |
| Input Offset Voltage | 100 μV max at 25°C - ensures ≤1 mV error in 10 V full-scale measurement systems |
| Open-Loop Gain | 6.5 V/μV (136 dB) typ - provides ≥100 dB loop gain at 100 kHz for stable closed-loop control |
| Input Voltage Noise | 19 nV/√Hz typ - critical for low-amplitude sensor signal integrity in 1–10 kHz band |
| CMRR | 115 dB typ at ±15 V - rejects >3.16 MV of common-mode interference per 1 V differential signal |
Pinout & Package
TLE2021CPW is housed in an 8-pin TSSOP (PW) package, 3.0 mm × 4.4 mm, 0.65 mm pitch, with exposed pad for thermal enhancement (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal - used with external potentiometer to trim input offset voltage |
| 2 | IN− | Inverting input - high-impedance node (50 nA max bias current) for feedback network connection |
| 3 | IN+ | Non-inverting input - accepts common-mode voltages down to VCC−/GND, enabling single-supply sensor interfacing |
| 4 | VCC−/GND | Negative supply or ground reference - must be decoupled locally for stability |
| 5 | NC | No internal connection - left unconnected; no routing or grounding required |
| 6 | VCC+ | Positive supply - supports ±2 V to ±20 V dual or 4 V to 40 V single supply operation |
| 7 | OUT | Amplifier output - drives loads ≥10 kΩ; ±20 mA short-circuit current capability |
| 8 | OFFSET N2 | Null adjustment terminal - paired with Pin 1 for symmetric offset trimming |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal protection | Prevents output polarity flip when IN− or IN+ drops below VCC−/GND - eliminates latch-up risk in single-supply transducer circuits |
| Rail-to-rail input (negative rail inclusive) | Common-mode range extends to VCC−/GND - enables direct interface with 0 V referenced sensors without level shifters |
| Low long-term drift | 0.005 μV/month typical - maintains calibration stability over years in metrology-grade instrumentation |
| High PSRR & CMRR | 120 dB supply rejection and 115 dB common-mode rejection at ±15 V - preserves accuracy in noisy industrial power environments |
| Excalibur process optimization | Vertical PNP transistors + tailored biasing - achieves 2× higher bandwidth than OP21 while retaining sub-100 μV offset |
Applications
| Strain Gauge Signal Conditioning | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from load cells in industrial weighing systems. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with offset nulling and phase-reversal immunity. Use Value: 100 μV max offset and 19 nV/√Hz noise preserve resolution of <10 ppm strain measurements; 300 μA supply current extends battery life in handheld calibrators. | Use Scenario: Biopotential amplification in battery-operated electrocardiogram monitors with dry electrodes. IC Role / Device Role / Timing Role: First-stage AC/DC-coupled gain block accepting 0–3.5 V common-mode input from electrode interface. Use Value: Rail-to-rail input allows direct coupling to electrode bias networks; 2 MHz bandwidth captures QRS complex fidelity; low power enables >72-hour runtime on coin cell. |
| Thermocouple Cold-Junction Compensation | Programmable Logic Controller Analog Input Module |
Use Scenario: Amplifying low-drift thermistor or RTD signals in cold-junction compensation circuits for Type K thermocouples. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer and gain stage preceding ADC, operating from 5 V single supply. Use Value: 0.005 μV/month offset drift minimizes calibration drift over 10-year field deployment; 136 dB open-loop gain ensures <0.001 °C error contribution in 0–100 °C range. | Use Scenario: Signal conditioning for 4–20 mA current loop receivers in modular PLC I/O cards. IC Role / Device Role / Timing Role: Precision voltage translator and filter driver between shunt resistor and SAR ADC. Use Value: ±15 V operation supports industrial supply rails; 115 dB CMRR rejects common-mode noise from motor drives; TSSOP-8 footprint enables high-density 16-channel analog input design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA227PA | Higher precision (10 μV max offset), lower noise (3.5 nV/√Hz), but 2.2 mA supply current - 7× higher than TLE2021CPW | Used in laboratory-grade bench instruments where ultimate accuracy outweighs power cost | Select OPA227PA only when sub-20 μV offset and <5 nV/√Hz noise are mandatory; avoid in portable or thermally constrained designs |
| LMV721IDBVR | Lower power (120 μA), rail-to-rail I/O, but reduced GBW (1.5 MHz) and higher offset (250 μV max) - trades precision for ultra-low power | Targeted at consumer IoT sensor nodes where battery life dominates performance requirements | Choose LMV721IDBVR for sub-150 μA systems with relaxed offset specs; not suitable for metrology or medical diagnostics |
Compared with OPA227PA and LMV721IDBVR, the TLE2021CPW uniquely balances 100 μV offset, 2 MHz bandwidth, and 300 μA supply current - making it optimal for industrial sensor signal chains where moderate precision, medium speed, and constrained power coexist.
Availability
TLE2021CPW is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and programmable logic controller analog input modules requiring stable component supply across extended product lifecycles.
Supply support for TLE2021CPW 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TLE202x family was engineered for high-accuracy, low-power signal conditioning in harsh environments - combining Excalibur process advantages with phase-reversal immunity and rail-inclusive input stages for robustness in real-world sensor systems.
FAQ
What is the maximum supply voltage rating for the TLE2021CPW?
The TLE2021CPW has an absolute maximum supply voltage rating of ±20 V across VCC+ and VCC−/GND terminals. Operation beyond this limit risks permanent damage. Recommended operating range is ±2 V to ±20 V for dual supply or 4 V to 40 V for single supply, with derating applied above 25°C ambient per the dissipation rating table in the datasheet. The TLE2021CPW must never be operated with supply differential exceeding 40 V.
Does the TLE2021CPW support true single-supply operation with input signals near ground?
Yes, the TLE2021CPW supports true single-supply operation: its common-mode input voltage range extends to the negative rail (VCC−/GND), allowing inputs as low as 0 V when powered from 5 V. This enables direct interfacing with grounded sensors or transducers without level-shifting circuitry. However, output swing is limited to ~0.7 V above GND and ~3.9 V below VCC+, so full rail-to-rail output is not supported.
How does phase-reversal protection work in the TLE2021CPW?
The TLE2021CPW incorporates internal phase-reversal protection circuitry that prevents output polarity inversion when either input (IN+ or IN−) falls below the negative supply rail (VCC−/GND). Without this feature, conventional op-amps can latch or invert output unexpectedly during input overdrive - a failure mode eliminated here. This makes the TLE2021CPW robust in sensor applications where transient input excursions below ground may occur.
What is the purpose of the OFFSET N1 and OFFSET N2 pins on the TLE2021CPW?
The OFFSET N1 (Pin 1) and OFFSET N2 (Pin 8) pins on the TLE2021CPW provide access to the internal input stage nulling nodes. Connecting a 10-kΩ potentiometer between these pins, with its wiper grounded, allows manual trimming of input offset voltage to <10 μV. This is essential in high-precision DC-coupled applications such as strain gauge bridges or thermocouple amplifiers where residual offset directly impacts measurement accuracy.
Is the TLE2021CPW RoHS compliant and lead-free?
Yes, the TLE2021CPW is RoHS compliant and lead-free. Texas Instruments certifies the PW (TSSOP-8) package variant as meeting EU RoHS Directive 2011/65/EU and JEDEC J-STD-609 standards for lead-free terminations. The device uses matte tin (Sn) lead finish and complies with IPC/JEDEC J-STD-020 moisture sensitivity level 2a (MSL-2a), requiring bake or dry-pack handling prior to reflow if exposed to ambient for >1 year.
TLE2021CPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLE2021CPW FAQ
1.How can I place an order for TLE2021CPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021CPW 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 TLE2021CPW reliable?
The price and inventory of TLE2021CPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021CPW is usually 5 days.
3.What payment methods are accepted for TLE2021CPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021CPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021CPW?
TLE2021CPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021CPW 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 TLE2021CPW?
For technical support, including TLE2021CPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021CPW requirements.
6.How does Aetrix verify that TLE2021CPW is sourced from the original manufacturer or authorized distributors?
All TLE2021CPW 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 TLE2021CPW meets industry standards.
7.What is the process for return or replacement of TLE2021CPW?
All TLE2021CPW units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021CPW, 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 TLE2021CPW part is unused and in its original packaging.
Return procedure for TLE2021CPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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