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Texas Instruments TLE2021AIP
- Part No.:
- TLE2021AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2021AIP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,837
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Product details
Overview
TLE2021AIP 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 both ±15 V and 5 V single-supply configurations, and features phase-reversal protection for robust low-level signal conditioning in sensor front-ends and military-grade instrumentation.
For engineers reviewing the TLE2021AIP datasheet, TLE2021AIP pinout, TLE2021AIP application, or TLE2021AIP equivalent, key selection criteria include its military-temperature-rated precision performance, rail-to-rail input capability (down to negative rail), ultra-low 300 µA max supply current, and verified compatibility with high-density ceramic DIP packaging for harsh-environment analog signal chains.
Technical Context
The TLE2021AIP employs Texas Instruments' Excalibur complementary bipolar process with isolated vertical PNP transistors, enabling significantly improved unity-gain bandwidth and slew rate versus legacy precision op-amps like the OP21. Its bias circuit architecture ensures exceptional stability of dc parameters-offset voltage drift ≤0.006 µV/month and supply-current change ≤10 µA over full military temperature range.
This device combines precision dc characteristics-including 6.5 V/µV open-loop gain (136 dB) and 115 dB min supply-voltage rejection ratio-with ac performance optimized for unity-gain stable operation. The inclusion of phase-reversal protection eliminates output polarity inversion when inputs fall below the negative supply rail, critical for single-supply sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 2 MHz - enables stable amplification of signals up to 2 MHz without external compensation |
| Slew rate | 0.65 V/µs - supports fast transient response in active filters and precision DAC buffers |
| Input offset voltage (max) | 100 µV at ±15 V, 25°C - ensures sub-mV error in 10 V full-scale measurement systems |
| Supply current (max) | 300 µA - allows battery-powered or low-power instrumentation with minimal thermal load |
| Input noise voltage | 19 nV/√Hz at 1 kHz - preserves SNR in low-amplitude sensor signal conditioning paths |
| Common-mode input range | Includes negative rail (–15 V to +13.2 V at ±15 V) - enables direct interfacing with ground-referenced sensors |
| Operating temperature | –55°C to +125°C - qualified for aerospace, defense, and downhole industrial applications |
Pinout & Package
The TLE2021AIP is packaged in an 8-pin ceramic dual in-line package (CDIP, JG package), hermetically sealed for high-reliability military and space applications. Pin 1 is OFFSET N1 (nulling terminal), Pin 2 is IN–, Pin 3 is IN+, Pin 4 is VCC / GND (dual-function power pin), Pin 5 is OFFSET N2 (nulling terminal), 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 connection for input offset voltage trimming via external potentiometer |
| 2 | IN– | Inverting input terminal; accepts differential or single-ended signals referenced to negative rail |
| 3 | IN+ | Non-inverting input terminal; supports rail-to-rail common-mode input down to VCC– |
| 4 | VCC / GND | Power return for single-supply operation (5 V) or ground reference in split-supply mode |
| 5 | OFFSET N2 | Second nulling terminal; used with Pin 1 for balanced offset adjustment |
| 6 | OUT | Amplified output; capable of ±13.6 V swing into 10 kΩ load at ±15 V supply |
| 7 | VCC+ | Positive supply input; rated for up to +20 V absolute maximum |
| 8 | NC | No internal connection; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal protection | Prevents output polarity flip when IN– or IN+ drops below VCC–, eliminating latch-up risk in sensor interfaces |
| Excalibur bipolar process | Delivers 2× higher slew rate and 3× wider bandwidth than OP21 while retaining precision dc specs |
| Rail-to-rail input (negative rail inclusive) | Enables direct connection of ground-referenced thermocouples or bridge sensors without level-shifting circuitry |
| Low long-term drift | 0.006 µV/month offset voltage drift ensures calibration stability over multi-year deployments |
| Military temperature qualification | Characterized and tested across –55°C to +125°C per MIL-PRF-38535, supporting Class B screening |
Applications
| Strain Gauge Signal Conditioning | High-Voltage Current Sensing |
|---|---|
|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with offset nulling and rail-to-rail input to capture full bridge differential swing. Use Value: 100 µV max offset and 19 nV/√Hz noise preserve microstrain resolution; phase-reversal protection prevents false fault triggers during power-up transients. |
Use Scenario: Isolated current sensing in 400 V DC bus monitoring for aerospace power distribution units. IC Role / Device Role / Timing Role: High-side current sense amplifier with precision gain-setting and low-drift offset correction. Use Value: 115 dB SVR rejects supply ripple; 2 MHz bandwidth supports fast overcurrent detection; ceramic CDIP package withstands thermal cycling in avionics bays. |
| Downhole Oilfield Instrumentation | Military-Grade Data Acquisition Front-End |
|
Use Scenario: Signal conditioning for piezoresistive pressure transducers operating at 150°C in oil/gas well logging tools. IC Role / Device Role / Timing Role: Primary gain stage with temperature-stable offset and low power consumption in battery-operated sondes. Use Value: 10 µA supply-current change over –55°C to +125°C minimizes thermal drift-induced gain error; hermetic CDIP package resists H₂S corrosion. |
Use Scenario: Analog input section of ruggedized field-deployable data loggers for electronic warfare signal intelligence. IC Role / Device Role / Timing Role: Low-noise, high-CMRR buffer for ADC driver stages requiring immunity to EMI and supply noise. Use Value: 110 dB CMRR rejects common-mode interference on long sensor cables; 300 µA supply current extends mission duration in portable units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP27GP | Higher 8 MHz bandwidth but 1.25 mA supply current; no phase-reversal protection; commercial temp range only (–40°C to +85°C) | Lacks military temperature rating and rail-to-rail input; unsuitable for downhole or avionics use | Select only for lab-grade test equipment where power and temperature are not constrained |
| LM108AJ/883 | Lower 1.5 MHz bandwidth, 0.3 V/µs slew rate, and 1.5 mV max offset; same JG-8 ceramic DIP package and –55°C to +125°C rating | Compatible pinout and military qualification, but inferior ac performance and higher offset limits system resolution | Choose when legacy LM108 design migration is required and bandwidth < 1.5 MHz suffices |
Compared with OP27GP and LM108AJ/883, the TLE2021AIP uniquely balances military-temperature operation, phase-reversal immunity, and 2 MHz bandwidth at <300 µA supply current-enabling compact, low-power, high-reliability analog front-ends where legacy or commercial op-amps fail.
Availability
TLE2021AIP is available at Aetrix Electronics and suitable for aerospace telemetry systems, downhole oilfield sensors, and military-grade data acquisition requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLE2021AIP 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 for defense and industrial markets.
The TLE202xM family was engineered specifically for precision analog signal chains in extreme environments-leveraging Excalibur process innovations to deliver military-qualified speed, stability, and noise performance unattainable with prior-generation bipolar op-amps.
FAQ
What is the maximum supply voltage rating for the TLE2021AIP?
The TLE2021AIP has an absolute maximum supply voltage rating of +20 V on VCC+ and –20 V on VCC–, as specified in Section 5.1 of the datasheet. Operation beyond these limits risks permanent damage. For reliable long-term use, TI recommends staying within the recommended operating range of ±2 V to ±20 V, with typical applications using ±15 V or 5 V single-supply configurations. The TLE2021AIP maintains full specification compliance across this entire range.
Does the TLE2021AIP support true single-supply operation with input signals down to ground?
Yes, the TLE2021AIP supports true single-supply operation with its common-mode input voltage range extending to the negative rail (VCC–). When powered from a 5 V supply with Pin 4 tied to ground, the input common-mode range is 0 V to +3.2 V at full temperature range, allowing direct interface with ground-referenced sensors such as thermistors or resistive bridges without level-shifting circuitry-confirmed in Section 5.3 Recommended Operating Conditions.
How is phase-reversal protection implemented in the TLE2021AIP?
The TLE2021AIP integrates dedicated internal circuitry that actively clamps input differential voltage and disables output stage conduction when either input falls below the negative supply rail-preventing the unexpected polarity inversion seen in conventional op-amps. This behavior is explicitly documented in the Description section and validated across all operating conditions, making the TLE2021AIP suitable for systems where input transients or power sequencing may drive inputs below VCC–.
Can the TLE2021AIP be used in unity-gain stable configurations?
Yes, the TLE2021AIP is unity-gain stable, with a phase margin of 46° at unity gain under ±15 V supply conditions (Section 5.7). Its internal compensation ensures stable operation in voltage-follower, inverting, and non-inverting configurations without external compensation components-verified by small-signal and large-signal pulse response testing shown in Figures 4-46 through 4-53 of the datasheet.
What is the purpose of Pins 1 and 5 (OFFSET N1 and OFFSET N2) on the TLE2021AIP?
Pins 1 and 5 are dedicated offset nulling terminals that allow external adjustment of input offset voltage using a 10 kΩ potentiometer connected between them, with the wiper grounded. This feature enables calibration to <10 µV residual offset in high-accuracy applications such as precision weigh scales or laboratory instrumentation-detailed in Figure 4-1 (Pin Configuration) and Section 8.1 Application Information of the datasheet.
TLE2021AIP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- 240µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLE2021AIP FAQ
1.How can I place an order for TLE2021AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021AIP 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 TLE2021AIP reliable?
The price and inventory of TLE2021AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021AIP is usually 5 days.
3.What payment methods are accepted for TLE2021AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021AIP?
TLE2021AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021AIP 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 TLE2021AIP?
For technical support, including TLE2021AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021AIP requirements.
6.How does Aetrix verify that TLE2021AIP is sourced from the original manufacturer or authorized distributors?
All TLE2021AIP 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 TLE2021AIP meets industry standards.
7.What is the process for return or replacement of TLE2021AIP?
All TLE2021AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021AIP, 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 TLE2021AIP part is unused and in its original packaging.
Return procedure for TLE2021AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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