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Texas Instruments TLE2021CPG4
- Part No.:
- TLE2021CPG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2021CPG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,661
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Product details
Overview
TLE2021CPG4 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 and low-level analog front-ends in harsh environments.
For engineers reviewing the TLE2021CPG4 datasheet, TLE2021CPG4 pinout, TLE2021CPG4 application, or TLE2021CPG4 equivalent, key selection criteria include its phase-reversal protection, 19 nV/√Hz input voltage noise, 6.5 V/µV open-loop gain (136 dB), stable 10 µA supply-current drift over temperature, and rail-to-rail common-mode input range including the negative rail.
Technical Context
The TLE2021CPG4 employs Texas Instruments' Excalibur complementary bipolar 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 long-term stability-offset voltage drift is only 0.005 µV/month-and minimal parameter shift across the full military temperature range.
This architecture delivers precision DC performance (low VIO, high CMRR ≥100 dB, kSVR ≥105 dB) while maintaining robust AC behavior: 46° phase margin at unity gain, 1.2 MHz bandwidth at ±15 V, and guaranteed operation with capacitive loads up to 100 pF without oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current | 300 µA max at ±15 V - enables ultra-low-power precision sensing in battery-backed or thermally constrained systems. |
| Unity-gain bandwidth | 2 MHz - supports stable closed-loop operation up to ~1.2 MHz with adequate phase margin for anti-aliasing filters and active instrumentation amps. |
| Slew rate | 0.65 V/µs - sufficient for 10 kHz full-scale sine output at 10 Vpp without distortion in data acquisition front-ends. |
| Input offset voltage | 100 µV max at 25°C - ensures ≤0.1% gain error in 100 mV full-scale bridge sensor interfaces without trimming. |
| Input voltage noise | 19 nV/√Hz at 1 kHz - critical for preserving SNR in low-amplitude thermocouple or strain gauge amplification stages. |
| Common-mode input range | Includes negative rail (–15 V to +13.2 V at ±15 V) - allows direct interfacing with ground-referenced sensors in single-supply or split-supply topologies. |
| Phase-reversal protection | Eliminates output polarity inversion when IN– falls below VCC– - prevents latch-up or false triggering in overvoltage fault conditions. |
Pinout & Package
Ceramic Dual-In-Line Package (CDIP), 8-pin, hermetically sealed, rated for –55°C to +125°C operation. Pin 1 is OFFSET N1 (null adjustment), Pin 4 is VCC/GND (common power return), Pin 5 is OFFSET N2 (null adjustment), Pin 6 is OUT, Pin 2 is IN–, Pin 3 is IN+, Pin 7 is VCC+, Pin 8 is NC (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal for fine-tuning input offset voltage via external potentiometer (used with Pin 5). |
| 2 | IN– | Inverting input - accepts differential or single-ended signals; features phase-reversal protection. |
| 3 | IN+ | Non-inverting input - supports rail-to-rail common-mode range down to VCC–. |
| 4 | VCC / GND | Power return node - serves as reference for both supply rails in dual-supply mode or ground in single-supply mode. |
| 5 | OFFSET N2 | Null adjustment terminal paired with Pin 1; completes 2-terminal offset trim network. |
| 6 | OUT | Amplified output - capable of ±20 mA drive into resistive loads; swing limited to ±13.6 V at ±15 V supply. |
| 7 | VCC+ | Positive supply terminal - accepts up to +20 V absolute maximum; must be decoupled locally. |
| 8 | NC | No internal connection - left unconnected; no routing or grounding required. |
Key Features
| Feature | Design Value |
|---|---|
| Excalibur bipolar process | Enables simultaneous high speed (2 MHz GBW) and low power (300 µA) - unlike CMOS or JFET op-amps that trade one for the other. |
| Phase-reversal protection | Prevents catastrophic output inversion during input overdrive - eliminates need for external clamping diodes in sensor interface circuits. |
| Rail-included common-mode range | Allows direct connection of grounded sensors (e.g., RTDs, thermocouples) without level-shifting circuitry in single-supply designs. |
| Low long-term drift | 0.005 µV/month offset drift ensures calibration stability over years - critical for aerospace and medical instrumentation with infrequent recalibration. |
| Military temperature rating | –55°C to +125°C operation verified per MIL-PRF-38535 - qualified for avionics, downhole tools, and defense electronics. |
Applications
| Strain Gauge Signal Conditioning | Thermocouple Amplification |
|---|---|
|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring systems. IC Role / Device Role / Timing Role: Precision difference amplifier with offset nulling capability and rail-to-rail input to handle bridge common-mode shifts. Use Value: 100 µV max VIO and 19 nV/√Hz noise preserve resolution of sub-10 µε mechanical strain measurements without post-amplifier digitization errors. |
Use Scenario: Cold-junction compensation and linear amplification of Type K thermocouple outputs (–5 mV to +60 mV) in industrial furnace controllers. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier front-end with phase-reversal protection against transient ESD events on sensor leads. Use Value: 0.005 µV/month drift ensures <±0.1°C accuracy drift over 5-year field deployment; rail-included input accommodates thermocouple's negative output swing. |
| Avionics Sensor Interface | Military Data Acquisition Front-End |
|
Use Scenario: Signal conditioning for pressure transducers in flight control systems operating at –55°C to +125°C ambient. IC Role / Device Role / Timing Role: High-reliability, hermetically sealed op-amp providing gain, filtering, and buffering before ADC sampling. Use Value: Ceramic DIP package and MIL-spec temperature rating ensure uninterrupted operation under extreme thermal cycling; 10 µA ΔICC over temp minimizes supply regulation burden. |
Use Scenario: Multi-channel analog front-end for ruggedized portable test equipment used in battlefield diagnostics. IC Role / Device Role / Timing Role: Single-channel precision amplifier in modular channel design, supporting programmable gain and offset calibration. Use Value: Pin-compatible upgrade path from OP21 with 2× higher slew rate and 3× lower supply current enables longer battery life without sacrificing DC accuracy. |
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), wider bandwidth (8 MHz), but 1.25 mA supply current - 4× higher than TLE2021CPG4. | Used in high-speed photodiode transimpedance amps; less suitable for low-power, wide-temp embedded systems. | Select OP27GP only when bandwidth >5 MHz is required and power budget allows >1 mA per channel. |
| LMC6061IM | CMOS input (0.01 pA IIB), rail-to-rail output, but only 0.15 MHz GBW and 0.07 V/µs slew rate - slower by >13×. | Preferred for ultra-high-impedance pH electrode buffers; unsuitable for dynamic sensor signals above 10 kHz. | Choose LMC6061IM when input bias current <1 pA is mandatory and bandwidth requirements are <100 kHz. |
Compared with OP27GP and LMC6061IM, the TLE2021CPG4 uniquely balances military-grade temperature stability, sub-300 µA quiescent current, and 2 MHz bandwidth - making it optimal for precision, low-power, wide-temperature analog signal chains where neither speed nor ultra-low bias dominates.
Availability
TLE2021CPG4 is available at Aetrix Electronics and suitable for avionics sensor interfaces, industrial furnace controllers, structural health monitoring systems, and ruggedized data acquisition requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLE2021CPG4 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 over 90 years of innovation in high-reliability components for aerospace, defense, and industrial markets.
The TLE202xM family was designed specifically for precision analog signal conditioning in military and space applications, emphasizing long-term offset stability, phase-reversal immunity, and operation across –55°C to +125°C without derating.
FAQ
What is the maximum supply voltage rating for the TLE2021CPG4?
The TLE2021CPG4 has an absolute maximum supply voltage rating of ±20 V - meaning VCC+ may reach +20 V and VCC– may reach –20 V. Operation at ±15 V is recommended for full specification compliance across the –55°C to +125°C range. Exceeding ±20 V risks permanent damage per the Absolute Maximum Ratings table in the TI datasheet SLOS191E.
Does the TLE2021CPG4 support single-supply operation?
Yes, the TLE2021CPG4 is explicitly specified for 5 V single-supply operation per Section 1 Features and Section 5.4 of the datasheet. Its common-mode input range extends to the negative rail (0 V in single-supply mode), and output swings within 0.7 V of ground and 0.95 V of VCC, enabling use in ground-referenced sensor interfaces without level-shifting circuitry.
How is phase-reversal protection implemented in the TLE2021CPG4?
The TLE2021CPG4 integrates internal circuitry that prevents output polarity inversion when the inverting input (Pin 2) falls below the negative supply rail - a failure mode common in standard op-amps. This eliminates the need for external clamping diodes in applications exposed to transient overvoltage or ESD on sensor inputs, such as thermocouple or strain gauge front-ends.
What is the purpose of Pins 1 and 5 (OFFSET N1 and OFFSET N2) on the TLE2021CPG4?
Pins 1 and 5 form a two-terminal offset nulling interface. Connecting a 10 kΩ potentiometer between them, with the wiper tied to VCC–, allows manual trimming of input offset voltage to <10 µV. This is essential in high-gain, DC-coupled applications like precision weigh scales or laboratory instrumentation where residual offset directly impacts measurement accuracy.
Is the TLE2021CPG4 RoHS-compliant and lead-free?
The TLE2021CPG4 is a legacy ceramic DIP device manufactured prior to RoHS enforcement and contains leaded solder in its hermetic seal. It is not RoHS-compliant. For RoHS-compliant alternatives with similar specs, consider the TLV2771CDR (SOIC-8) - though it lacks military temperature rating and phase-reversal protection.
TLE2021CPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLE2021CPG4 FAQ
1.How can I place an order for TLE2021CPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021CPG4 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 TLE2021CPG4 reliable?
The price and inventory of TLE2021CPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021CPG4 is usually 5 days.
3.What payment methods are accepted for TLE2021CPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021CPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021CPG4?
TLE2021CPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021CPG4 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 TLE2021CPG4?
For technical support, including TLE2021CPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021CPG4 requirements.
6.How does Aetrix verify that TLE2021CPG4 is sourced from the original manufacturer or authorized distributors?
All TLE2021CPG4 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 TLE2021CPG4 meets industry standards.
7.What is the process for return or replacement of TLE2021CPG4?
All TLE2021CPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021CPG4, 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 TLE2021CPG4 part is unused and in its original packaging.
Return procedure for TLE2021CPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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