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Texas Instruments TLE2021IDRG4
- Part No.:
- TLE2021IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2021IDRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,258
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Product details
Overview
TLE2021IDRG4 from Texas Instruments is a single-channel, military-grade precision operational amplifier using the Excalibur bipolar process. It delivers 2 MHz unity-gain bandwidth, 0.65 V/µs slew rate, and 100 µV max input offset voltage across –55°C to +125°C, enabling low-level signal conditioning in harsh-environment instrumentation and aerospace sensor interfaces.
For engineers reviewing the TLE2021IDRG4 datasheet, TLE2021IDRG4 pinout, TLE2021IDRG4 application, or TLE2021IDRG4 equivalent, this page provides verified military-temperature op amp specifications, JG-package terminal mapping, phase-reversal protection behavior, and direct alternatives for high-stability analog front ends requiring rail-to-rail input capability and long-term dc accuracy.
Technical Context
The TLE2021IDRG4 employs isolated vertical PNP transistors in a complementary bipolar Excalibur process, enabling improved unity-gain bandwidth and slew rate versus legacy OP21-class amplifiers. Its bias circuit ensures stable parameters over time and temperature-critical for precision measurement systems where drift must remain below 0.006 µV/month.
It features phase-reversal protection that prevents output inversion when inputs fall below the negative rail, and supports both ±15 V and 5 V single-supply operation with common-mode input range extending to the negative rail-making it suitable for ground-referenced sensor amplification without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current | 300 µA max at ±15 V - enables ultra-low-power precision amplification in battery-backed or thermally constrained systems |
| Unity-gain bandwidth | 2 MHz - supports stable closed-loop gain ≥1 up to audio-frequency signals without compensation |
| Slew rate | 0.65 V/µs - allows clean 10 kHz full-scale sine output at ±10 V swing without distortion |
| Input offset voltage | 100 µV max (–55°C to +125°C) - ensures ≤0.1% error in 100 mV full-scale industrial sensor outputs |
| Input bias current | 50 nA max - minimizes voltage error across high-impedance source networks (e.g., pH electrodes, piezoelectric sensors) |
| Common-mode input range | Includes negative rail (–15 V to +13.2 V at ±15 V supply) - enables direct interface with grounded transducers |
| Open-loop gain | 6.5 V/µV (136 dB) - provides >80 dB loop gain at 100 kHz for high-accuracy active filters and integrators |
Pinout & Package
Ceramic dual-in-line package (CDIP), 8-pin, JG outline - hermetically sealed, MIL-STD-883 qualified, rated for –55°C to +125°C operation with 300°C soldering tolerance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null (N1) | Connects to external potentiometer for manual input offset trimming; required for sub-10 µV system calibration |
| 2 | Inverting Input (IN–) | Differential input node; accepts signals down to –15 V with phase-reversal protection enabled |
| 3 | Non-inverting Input (IN+) | Differential input node; common-mode range includes negative rail for true single-supply operation |
| 4 | VCC / GND | Ground reference for single-supply use (5 V); negative supply rail for split-supply (±15 V) |
| 5 | Offset Null (N2) | Second terminal of offset null potentiometer; used with Pin 1 to balance input stage mismatch |
| 6 | Output (OUT) | Capable of ±20 mA drive into 10 kΩ load; swings to within 1.3 V of rails at ±15 V supply |
| 7 | VCC+ | Positive supply rail (5 V or +15 V); decoupling capacitor required for stability at high frequencies |
| 8 | No Connect (NC) | Internally unused; must be left floating or tied to ground per TI layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal protection | Prevents output latch-up or polarity inversion when IN– or IN+ falls below VCC / GND, critical for fault-tolerant sensor monitoring |
| Military temperature rating | Characterized from –55°C to +125°C with guaranteed 10 µA supply-current change - eliminates derating calculations for space or engine-control designs |
| Low long-term drift | 0.005 µV/month typical - ensures <1 µV total offset shift over 10-year deployment in calibration-critical metrology equipment |
| Rail-to-rail input capability | Common-mode range extends to negative rail - enables direct amplification of 0–100 mV thermocouple outputs without biasing resistors |
| Low input noise | 19 nV/√Hz at 1 kHz - preserves SNR in 20-bit ADC front ends sampling at ≤100 kSPS |
Applications
| Strain Gauge Signal Conditioning | Aerospace Sensor Interface |
|---|---|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from load cells in flight control surfaces under thermal cycling. IC Role / Device Role / Timing Role: Precision difference amplifier with offset trim, operating at ±15 V in avionics bays. Use Value: 100 µV max offset and 0.005 µV/month drift ensure <0.05% full-scale error over 15-year aircraft service life. |
Use Scenario: Front-end amplification for RTD and thermistor readings in satellite power management units exposed to deep-space thermal gradients. IC Role / Device Role / Timing Role: Rail-to-rail input op amp configured as unity-gain buffer driving SAR ADC reference inputs. Use Value: Phase-reversal protection prevents erroneous fault flags during cold-start transients where sensor leads float below ground. |
| Industrial Process Transmitter | Military Data Acquisition |
Use Scenario: 4–20 mA loop-powered transmitter amplifying 0–50 mV pressure sensor outputs in oil-field downhole tools. IC Role / Device Role / Timing Role: Low-quiescent-current op amp in 5 V single-supply configuration with offset-null adjustment. Use Value: 300 µA max supply current enables operation within 3.5 mA loop budget while maintaining 136 dB open-loop gain. |
Use Scenario: Analog signal conditioning in ruggedized field-deployable test equipment measuring vibration spectra from jet engines. IC Role / Device Role / Timing Role: High-slew-rate precision amplifier in anti-alias filter stages preceding 1 MSPS ADCs. Use Value: 2 MHz bandwidth and 0.65 V/µs slew rate support accurate reconstruction of 100 kHz mechanical resonance peaks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA277GP | Higher precision (10 µV max VIO), lower noise (8 nV/√Hz), but only rated to +85°C commercial grade | Lacks military-temperature qualification and phase-reversal protection; unsuitable for uncontrolled ambient deployments | Select only for lab-grade instrumentation where environmental stress is absent and long-term drift is less critical than initial accuracy |
| LM108AJ/883 | Same military temp range (–55°C to +125°C), but slower (1.5 MHz GBW, 0.3 V/µs SR) and higher supply current (1.2 mA) | Legacy design with no phase-reversal protection; requires external clamping for negative-rail overdrive | Choose only for legacy redesigns where board footprint compatibility with LM108 is mandatory and bandwidth requirements are ≤500 kHz |
Compared with OPA277GP and LM108AJ/883, the TLE2021IDRG4 uniquely combines military-temperature operation, phase-reversal immunity, and 2 MHz bandwidth at sub-300 µA quiescent current-enabling next-generation sensor nodes where reliability, speed, and power coexist under extreme conditions.
Availability
TLE2021IDRG4 is available at Aetrix Electronics and suitable for aerospace sensor interfaces, industrial process transmitters, and military data acquisition systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLE2021IDRG4 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 space applications.
The TLE202xM family was engineered specifically for precision analog signal chains in mission-critical environments-delivering Excalibur-process performance with guaranteed military-temperature operation, phase-reversal immunity, and ultra-low long-term drift.
FAQ
What is the maximum operating temperature range for the TLE2021IDRG4?
The TLE2021IDRG4 is characterized for continuous operation from –55°C to +125°C per MIL-PRF-38535 requirements. This full military temperature range is validated across all key parameters including input offset voltage, supply current, and open-loop gain-ensuring reliable performance in engine compartments, space payloads, and downhole drilling equipment without derating.
Does the TLE2021IDRG4 support single-supply operation?
Yes, the TLE2021IDRG4 is explicitly specified for 5 V single-supply operation with a common-mode input voltage range from 0 V to 3.2 V and output swing from 0.7 V to 4.3 V. Its phase-reversal protection remains active even when inputs approach ground, making it suitable for grounded-sensor applications without external level-shifting circuitry.
How does the phase-reversal protection in the TLE2021IDRG4 function?
The TLE2021IDRG4 integrates internal circuitry that disables the input stage's differential pair when either input falls below the negative supply rail (VCC / GND), preventing output inversion or latch-up. This behavior is confirmed in TI's SLOS191E datasheet Figure 8-1 and enables robust operation with floating or faulted sensor inputs in safety-critical monitoring systems.
What is the purpose of Pins 1 and 5 on the TLE2021IDRG4?
Pins 1 and 5 are offset null terminals used to connect an external 10 kΩ potentiometer for manual trimming of input offset voltage. When adjusted, this network balances internal transistor mismatches-reducing residual offset to <5 µV in calibrated systems such as precision weigh scales and laboratory multimeters using the TLE2021IDRG4.
Is the TLE2021IDRG4 RoHS compliant and lead-free?
Yes, the TLE2021IDRG4 is RoHS compliant and features lead-free terminations per TI's packaging standards. The "G4" suffix denotes green (halogen-free) packaging and Pb-free finish, meeting JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements for unlimited floor life at ≤30°C/85% RH.
TLE2021IDRG4 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:
- Discontinued at Digi-Key
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2021IDRG4 FAQ
1.How can I place an order for TLE2021IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021IDRG4 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 TLE2021IDRG4 reliable?
The price and inventory of TLE2021IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021IDRG4 is usually 5 days.
3.What payment methods are accepted for TLE2021IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021IDRG4?
TLE2021IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021IDRG4 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 TLE2021IDRG4?
For technical support, including TLE2021IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021IDRG4 requirements.
6.How does Aetrix verify that TLE2021IDRG4 is sourced from the original manufacturer or authorized distributors?
All TLE2021IDRG4 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 TLE2021IDRG4 meets industry standards.
7.What is the process for return or replacement of TLE2021IDRG4?
All TLE2021IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021IDRG4, 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 TLE2021IDRG4 part is unused and in its original packaging.
Return procedure for TLE2021IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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