My Inquiry
My Account
Texas Instruments TLE2021CPE4
- Part No.:
- TLE2021CPE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2021CPE4.pdf
- Description:
- PRECISION LOW-POWER SINGLE SUPPL
- Quantity:
- Payment:
- Shipping:
Inventory:4,224
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLE2021CPE4 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, features phase-reversal protection, rail-to-rail common-mode input (including negative rail), and supports both 5 V single-supply and ±15 V split-supply configurations - ideal for low-level signal conditioning in military-grade sensor interfaces and precision instrumentation.
For engineers reviewing the TLE2021CPE4 datasheet, TLE2021CPE4 pinout, TLE2021CPE4 application, or TLE2021CPE4 equivalent, key selection considerations include its military-temperature-rated ceramic DIP-8 package, ultra-low 300 µA max supply current, 136 dB open-loop gain, 19 nV/√Hz input voltage noise, and guaranteed performance under extended thermal aging and long-term drift (0.005 µV/month).
Technical Context
The TLE2021CPE4 employs Texas Instruments' Excalibur complementary bipolar process with isolated vertical PNP transistors, enabling significantly improved AC performance over legacy precision op-amps like the OP21 while retaining superior DC accuracy. Its bias circuit architecture ensures exceptional stability of offset voltage, supply current, and gain over temperature and time.
Phase-reversal protection prevents output inversion when either input falls below the negative supply rail - a critical safeguard in single-supply transducer amplification and industrial analog front-ends where input signals may transiently undershoot ground. The device's common-mode input range extending to the negative rail enables true single-supply operation without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 300 µA max - enables battery-powered or energy-constrained systems with minimal quiescent power draw. |
| Unity-Gain Bandwidth | 2 MHz - supports stable closed-loop operation up to ~1.2 MHz with adequate phase margin (46°) at ±15 V. |
| Slew Rate | 0.65 V/µs - allows faithful reproduction of 100 kHz full-scale sine waves at 1 Vpp without distortion. |
| Input Offset Voltage | 100 µV max - delivers ≤0.001% gain error in 10 V full-scale precision gain stages. |
| Input Voltage Noise | 19 nV/√Hz - preserves SNR in low-amplitude sensor signal chains (e.g., thermocouples, strain gauges). |
| Common-Mode Range | Includes negative rail - eliminates need for input biasing in single-supply applications such as 0–5 V sensor outputs. |
| Operating Temp Range | –55°C to +125°C - qualified for aerospace, defense, and downhole industrial deployments. |
Pinout & Package
The TLE2021CPE4 is housed in an 8-pin ceramic dual-in-line package (CDIP, JG variant), hermetically sealed for high-reliability environments. Pin 1 is OFFSET N1 (null adjustment), Pin 2 is IN–, Pin 3 is IN+, Pin 4 is VCC / GND (negative supply or ground reference), Pin 5 is OFFSET N2 (null adjustment), Pin 6 is OUT, Pin 7 is VCC+ (positive supply), and Pin 8 is NC (no connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal for fine-tuning input offset voltage via external potentiometer. |
| 2 | IN– | Inverting input - accepts feedback network or differential signal leg in instrumentation topologies. |
| 3 | IN+ | Non-inverting input - connects to reference, sensor, or signal source in follower/gain configurations. |
| 4 | VCC / GND | Negative supply pin (±15 V mode) or ground (5 V single-supply mode); must be decoupled locally. |
| 5 | OFFSET N2 | Second null adjustment terminal; used with Pin 1 for symmetric offset trimming. |
| 6 | OUT | Amplified output - drives loads up to ±20 mA; requires output isolation for capacitive loads >100 pF. |
| 7 | VCC+ | Positive supply pin - accepts +5 V (single) or +15 V (split); internal ESD protection to ±20 V absolute max. |
| 8 | NC | No internal connection - left unconnected; not to be tied to any potential. |
Key Features
| Feature | Design Value |
|---|---|
| Phase-reversal protection | Prevents output latch-up or polarity inversion when IN– or IN+ drops below VCC–, critical for fault-tolerant sensor monitoring. |
| Rail-inclusive common-mode input | Enables direct interface to 0 V–referenced sensors (e.g., RTDs, bridge transducers) without external level shifters. |
| Low long-term drift | 0.005 µV/month ensures calibration stability over multi-year deployments in test equipment and avionics. |
| Military-temperature qualification | Characterized and tested across –55°C to +125°C per MIL-PRF-38535, supporting Class B screening options. |
| High open-loop gain | 6.5 V/µV (136 dB) maintains <0.001% closed-loop gain error even at G = 1000 with resistive feedback. |
Applications
| Strain Gauge Signal Conditioning | Thermocouple Amplifier Front-End |
|---|---|
Use Scenario: Amplifying microvolt-level Wheatstone bridge outputs from load cells in structural health monitoring systems operating at –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Precision difference amplifier with adjustable gain and offset nulling to reject common-mode bridge excitation noise. Use Value: 100 µV max VIO and 19 nV/√Hz noise preserve resolution of sub-10 µε mechanical strain measurements. | Use Scenario: Cold-junction compensation and linearization of Type K thermocouple outputs in furnace controllers deployed in industrial plants. IC Role / Device Role / Timing Role: Low-drift, rail-to-rail-input instrumentation amplifier stage preceding ADC digitization. Use Value: Phase-reversal protection prevents erroneous readings during thermocouple disconnection or wire break events. |
| Military Data Acquisition Channel | Avionics Sensor Interface Module |
Use Scenario: Analog signal conditioning for pressure, acceleration, and vibration sensors in airborne telemetry units requiring DO-160 compliance. IC Role / Device Role / Timing Role: High-reliability, temperature-stable gain block in multi-channel AFE with ±15 V supplies and hermetic packaging. Use Value: Ceramic DIP-8 package and –55°C to +125°C operation ensure uninterrupted function during rapid altitude-induced thermal cycling. | Use Scenario: Signal buffering and filtering for MEMS gyroscopes and accelerometers in inertial measurement units (IMUs) aboard UAVs. IC Role / Device Role / Timing Role: Low-noise, low-power buffer isolating sensitive sensor outputs from noisy digital subsystems. Use Value: 300 µA max ICC enables integration into power-budgeted 28 V aircraft bus systems without thermal derating. |
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 | Lower noise (10 nV/√Hz), higher cost, SO-8 package only; no military temp rating. | Preferred for commercial lab equipment where noise dominates; unsuitable for hermetic or extended-temp designs. | Select OPA277GP only if 5 V single-supply operation and PCB space constraints outweigh reliability and temperature requirements. |
| LM101AHL | Older design, 0.5 MHz GBW, 0.5 V/µs slew, wider VIO spread (2 mV typ), but same CDIP-8 footprint. | Legacy drop-in replacement in repair scenarios; lacks phase-reversal protection and modern drift specs. | Choose LM101AHL only for backward-compatible field repairs where TLE2021CPE4 is unavailable and performance degradation is acceptable. |
Compared with OPA277GP and LM101AHL, the TLE2021CPE4 uniquely balances military-grade temperature resilience, phase-reversal immunity, and ultra-low drift in a hermetic ceramic package - making it irreplaceable in safety-critical analog signal paths where long-term calibration integrity is non-negotiable.
Availability
TLE2021CPE4 is available at Aetrix Electronics and suitable for precision instrumentation, aerospace data acquisition, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLE2021CPE4 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 op-amp design.
The TLE202xM family was engineered specifically for military, aerospace, and industrial applications demanding precision, speed, and long-term stability under extreme environmental stress - leveraging TI's Excalibur process to overcome legacy trade-offs between bandwidth and DC accuracy.
FAQ
What is the maximum supply voltage rating for the TLE2021CPE4?
The TLE2021CPE4 has absolute maximum supply voltage ratings of +20 V on VCC+ and –20 V on VCC– (Pin 4). Operation beyond ±15 V is not recommended for sustained use, as electrical characteristics are only specified up to ±15 V. Exceeding these limits risks permanent damage, especially under thermal stress or prolonged overvoltage conditions.
Does the TLE2021CPE4 support true single-supply operation?
Yes, the TLE2021CPE4 supports true single-supply operation: its common-mode input voltage range extends to the negative rail (0 V when VCC– = GND), and output swings within 0.95 V of ground at 5 V supply. This enables direct interfacing with 0–5 V sensors without level-shifting circuitry, provided the output load and feedback network respect the limited headroom.
How is phase-reversal protection implemented in the TLE2021CPE4?
The TLE2021CPE4 integrates internal clamping circuitry that prevents output inversion when either input falls below the negative supply rail. Unlike standard op-amps that may latch or reverse polarity under such conditions, the TLE2021CPE4 maintains predictable output behavior - a hardware-level feature critical for fault-tolerant sensor monitoring in safety-critical systems.
Can the TLE2021CPE4 be used in place of the LM101A in existing designs?
The TLE2021CPE4 shares the same 8-pin CDIP (JG) package and pinout as the LM101A, enabling direct physical replacement. However, it offers superior specs: 2× higher bandwidth, 10× lower input offset voltage, and built-in phase-reversal protection. Layout changes are unnecessary, but verify stability with existing compensation networks due to its higher slew rate and GBW.
What is the long-term input offset voltage drift specification for the TLE2021CPE4?
The TLE2021CPE4 exhibits a typical input offset voltage drift of 0.005 µV per month, extrapolated from accelerated life testing at 150°C. This ultra-low drift ensures calibration stability over multi-year deployments - essential for metrology instruments, satellite payloads, and other applications where recalibration intervals exceed 12 months.
TLE2021CPE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Push-Pull
- 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:
- 0°C ~ 70°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLE2021CPE4 FAQ
1.How can I place an order for TLE2021CPE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2021CPE4 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 TLE2021CPE4 reliable?
The price and inventory of TLE2021CPE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2021CPE4 is usually 5 days.
3.What payment methods are accepted for TLE2021CPE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2021CPE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2021CPE4?
TLE2021CPE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2021CPE4 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 TLE2021CPE4?
For technical support, including TLE2021CPE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2021CPE4 requirements.
6.How does Aetrix verify that TLE2021CPE4 is sourced from the original manufacturer or authorized distributors?
All TLE2021CPE4 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 TLE2021CPE4 meets industry standards.
7.What is the process for return or replacement of TLE2021CPE4?
All TLE2021CPE4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2021CPE4, 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 TLE2021CPE4 part is unused and in its original packaging.
Return procedure for TLE2021CPE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2021CPE4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
