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Texas Instruments TLE2021IP
- Part No.:
- TLE2021IP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2021IP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:189
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Product details
Overview
TLE2021IP 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 and supports both ±15 V and 5 V single-supply configurations, making it suitable for military-grade sensor signal conditioning in low-power, rail-to-rail-input analog front-ends.
For engineers reviewing the TLE2021IP datasheet, TLE2021IP pinout, TLE2021IP application, or TLE2021IP equivalent, key selection criteria include its phase-reversal protection, 19 nV/√Hz input voltage noise, 6.5 V/µV open-loop gain, stable 10 µA supply-current drift over temperature, and compatibility with high-density ceramic DIP packaging for harsh-environment instrumentation.
Technical Context
The TLE2021IP employs a complementary bipolar Excalibur process with isolated vertical PNP transistors, enabling significantly improved unity-gain bandwidth and slew rate versus legacy OP21-class amplifiers. Its bias circuit ensures exceptional parameter stability across time and temperature - critical for long-life precision measurement systems.
It features phase-reversal protection that prevents output inversion when inputs fall below the negative rail, and its common-mode input range includes the negative supply rail - enabling true single-supply operation with ground-referenced sensors while maintaining dc accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current | 300 µA max at ±15 V - enables ultra-low-power operation in battery-backed or thermally constrained military systems |
| Unity-gain bandwidth | 2 MHz - supports stable closed-loop gain ≥1 with adequate phase margin for anti-aliasing and active filtering |
| Slew rate | 0.65 V/µs - handles fast transient signals (e.g., pulse amplification) without distortion in precision data acquisition |
| Input offset voltage | 100 µV max at 25°C - ensures ≤0.001% gain error in 10 V full-scale instrumentation amplifiers |
| Input voltage noise | 19 nV/√Hz at 1 kHz - preserves SNR in low-level sensor interfaces (e.g., strain gauges, thermocouples) |
| CMRR | 115 dB max at ±15 V - rejects common-mode interference in noisy industrial or avionics environments |
| Operating temperature | –55°C to +125°C - qualified for extended military and aerospace deployment without derating |
Pinout & Package
Ceramic Dual-In-Line Package (CDIP), 8-pin, hermetically sealed - rated for high-reliability, high-temperature, and radiation-tolerant applications where plastic packages are unsuitable.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (N1) | Connects to external potentiometer for fine-tuning input offset voltage in precision DC-coupled stages |
| 2 | Inverting Input (–) | High-impedance node accepting feedback or signal source; supports rail-to-rail common-mode range down to VCC– |
| 3 | Non-inverting Input (+) | High-impedance node for reference or sensor input; phase-reversal protection active if driven below VCC– |
| 4 | VCC / GND | Ground pin for single-supply operation (5 V); connects to negative supply in split-rail configuration (±15 V) |
| 5 | Offset Null (N2) | Second terminal of offset null potentiometer; used with Pin 1 to trim VIO to <50 µV in critical applications |
| 6 | Output | Capable of ±20 mA drive into 10 kΩ load; delivers ±13.8 V swing at ±15 V supply with <100 mV headroom |
| 7 | VCC+ | Positive supply pin - accepts up to +20 V absolute max; powers internal PNP-based input stage and output driver |
| 8 | No Connect (NC) | Internally unused; must remain unconnected per TI design - no routing or grounding permitted |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal protection | Prevents catastrophic output polarity flip when either input drops below VCC–, eliminating latch-up risk in sensor fault conditions |
| Excalibur bipolar process | Delivers 2× higher slew rate and 3× wider bandwidth than OP21 while retaining sub-100 µV offset and low drift |
| Low long-term drift | 0.005 µV/month - ensures calibration stability over 10+ years in deployed test equipment or flight control electronics |
| Rail-to-rail input capability | Common-mode range extends to VCC– (–15 V), enabling direct interface with grounded transducers without level-shifting circuitry |
| Military temperature qualification | Characterized and screened across –55°C to +125°C per MIL-PRF-38535, including burn-in and parametric testing at extremes |
Applications
| Strain Gauge Signal Conditioning | Avionics Sensor Interface |
|---|---|
|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from aircraft structural load cells under vibration and thermal cycling. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with offset trimming and phase-reversal immunity during power-up transients. Use Value: 100 µV max VIO and 2 µV/°C drift ensure ≤0.02% full-scale error across –55°C to +125°C operating envelope. |
Use Scenario: Buffering and scaling analog outputs from inertial measurement units (IMUs) in flight control computers. IC Role / Device Role / Timing Role: High-stability gain stage with rail-to-rail input and low noise for preserving dynamic range in 16-bit ADC front-ends. Use Value: 19 nV/√Hz noise and 115 dB CMRR maintain >92 dB SNR in EMI-heavy cockpit environments. |
| Portable Test Equipment | Military Data Acquisition |
|
Use Scenario: Low-power, battery-operated handheld multimeters requiring precision DC accuracy and minimal self-heating. IC Role / Device Role / Timing Role: Zero-drift-capable op-amp in auto-zero reference path and input buffer with 300 µA quiescent current. Use Value: 300 µA max ICC enables >100-hour battery life in AA-powered instruments while maintaining 0.005% linearity. |
Use Scenario: Analog signal processing in ground vehicle telemetry modules exposed to extreme thermal shock and humidity. IC Role / Device Role / Timing Role: Hermetic CDIP-packaged amplifier in ruggedized signal chain for pressure, temperature, and position sensing. Use Value: Ceramic DIP package and MIL-qualified screening ensure zero field failures in 15-year deployed systems. |
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 slew rate (2.8 V/µs) but wider offset (25 µV typ, 75 µV max) and no phase-reversal protection; 10× higher supply current (1.25 mA) | Better for wideband AC-coupled circuits; unsuitable for rail-to-rail input or low-power DC-coupled designs | Select OP27GP only when bandwidth >2 MHz is required and power budget allows >1 mA per channel |
| LM108AJ | Lower bandwidth (1 MHz), higher offset (500 µV max), but superior long-term drift (0.002 µV/month); same military temp range and CDIP-8 package | Preferred for ultra-stable DC references and calibration standards where speed is secondary to aging performance | Choose LM108AJ when 10-year VIO drift must be <0.6 µV, even at cost of 50% bandwidth reduction |
Compared with OP27GP and LM108AJ, the TLE2021IP uniquely balances 2 MHz bandwidth, 100 µV offset, phase-reversal immunity, and 300 µA supply current - making it optimal for military-grade, low-power, rail-to-rail-input precision amplification where all four attributes are simultaneously required.
Availability
TLE2021IP is available at Aetrix Electronics and suitable for avionics sensor interface, portable test equipment, and military data acquisition requiring stable component supply with traceable lot history and extended temperature qualification.
Supply support for TLE2021IP 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, embedded processing, and connectivity technologies, with decades of heritage in high-reliability military and aerospace components.
The TLE202xM family was designed specifically for precision analog signal conditioning in extended-temperature, high-stability applications - emphasizing low drift, phase-reversal immunity, and hermetic packaging for mission-critical systems.
FAQ
What is the maximum supply voltage rating for the TLE2021IP?
The TLE2021IP has an absolute maximum supply voltage rating of ±20 V - meaning VCC+ may reach +20 V and VCC– may reach –20 V. Operation beyond this risks permanent damage. For reliable long-term use, TI specifies ±15 V as the recommended maximum operating supply, where all key parameters (e.g., slew rate, offset, CMRR) are fully characterized across –55°C to +125°C.
Does the TLE2021IP support true single-supply operation?
Yes - the TLE2021IP supports true single-supply operation from 5 V. Its common-mode input voltage range extends to the negative rail (0 V in 5 V systems), and its output swings within 0.7 V of ground and 0.8 V of VCC. Combined with phase-reversal protection, this enables robust interfacing with ground-referenced sensors without level-shifting circuitry - a key advantage over many legacy precision op-amps.
How does the phase-reversal protection in the TLE2021IP function?
The TLE2021IP incorporates internal circuitry that prevents output polarity inversion when either input is driven below the negative supply rail - a failure mode common in standard bipolar op-amps. This protection remains active across the full –55°C to +125°C range and eliminates need for external clamping diodes in sensor fault scenarios, simplifying design and improving system reliability in safety-critical applications.
What is the purpose of Pins 1 and 5 (Offset Null) on the TLE2021IP?
Pins 1 and 5 provide access to the internal offset null network, allowing external adjustment of input offset voltage using a 10-kΩ potentiometer. This enables trimming VIO to <50 µV in high-accuracy applications such as precision DAC buffers or calibrated measurement front-ends. The potentiometer wiper connects to Pin 1, one end to Pin 5, and the other end to VCC– - per TI's recommended configuration in SLOS191E.
Is the TLE2021IP pin-compatible with other op-amps in the same package?
No - the TLE2021IP uses a non-standard pinout for offset null (Pins 1 and 5) and NC (Pin 8), differing from industry-standard SOIC-8 or DIP-8 op-amps like the LM741 or OP27. While it shares the 8-pin CDIP mechanical footprint with devices such as the LM108AJ, electrical pin functions are not interchangeable. PCB layout must follow the TLE2021IP-specific pin mapping shown in Figure 4-1 of the datasheet.
TLE2021IP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 120 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
TLE2021IP FAQ
1.How can I place an order for TLE2021IP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021IP 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 TLE2021IP reliable?
The price and inventory of TLE2021IP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021IP is usually 5 days.
3.What payment methods are accepted for TLE2021IP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021IP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021IP?
TLE2021IP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021IP 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 TLE2021IP?
For technical support, including TLE2021IP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021IP requirements.
6.How does Aetrix verify that TLE2021IP is sourced from the original manufacturer or authorized distributors?
All TLE2021IP 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 TLE2021IP meets industry standards.
7.What is the process for return or replacement of TLE2021IP?
All TLE2021IP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021IP, 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 TLE2021IP part is unused and in its original packaging.
Return procedure for TLE2021IP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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