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Texas Instruments TLE2037AMD
- Part No.:
- TLE2037AMD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2037AMD.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,898
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Product details
Overview
TLE2037AMD from Texas Instruments is a decompensated, high-speed precision operational amplifier optimized for closed-loop gains ≥5. It delivers 50 MHz gain-bandwidth product, 7.5 V/μs slew rate, 2.5 nV/√Hz input voltage noise at 1 kHz, 25 μV max input offset voltage (−55°C to 125°C), and operates on ±4 V to ±19 V supplies. It serves in low-noise instrumentation amplifiers and high-fidelity signal conditioning stages where bandwidth and dc precision coexist.
For engineers reviewing the TLE2037AMD datasheet, TLE2037AMD pinout, TLE2037AMD application, or TLE2037AMD equivalent, this page provides verified electrical specifications, military-temperature package details, noise performance context, stability requirements for gain ≥5, and validated alternative options for precision analog signal chains.
Technical Context
The TLE2037AMD uses TI's Excalibur bipolar process to achieve simultaneous low 1/f noise (3.3 nV/√Hz at 10 Hz) and wide small-signal bandwidth (50 MHz GBW). Its decompensated architecture requires minimum closed-loop gain of 5 for phase margin ≥50°, distinguishing it from unity-gain-stable variants like TLE2027AMD.
It integrates saturation recovery circuitry to minimize output overload recovery time and features matched internal transistor pairs enabling 131 dB typical CMRR and 144 dB typical PSRR - critical for precision sensor front-ends operating across −55°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 50 MHz - enables stable closed-loop operation up to 10 MHz with gain ≥5, supporting high-speed active filters and wideband transimpedance amps. |
| Slew Rate | 7.5 V/μs - supports full-scale 10 Vpp output at >1 MHz without slewing distortion in fast-settling data acquisition circuits. |
| Input Voltage Noise | 2.5 nV/√Hz at 1 kHz - ensures minimal contribution to system noise floor in low-level sensor interfaces (e.g., strain gauges, thermopiles). |
| Input Offset Voltage (max) | 25 μV over −55°C to 125°C - maintains <0.1% error in 25 mV full-scale measurements across military temperature range. |
| Supply Voltage Range | ±4 V to ±19 V - compatible with legacy ±15 V industrial rails and extended-range systems requiring headroom for signal swing. |
| Common-Mode Input Range | −10.3 V to +10.3 V at TA = 125°C - allows direct interfacing with ±10 V industrial sensors without level-shifting circuitry. |
| Phase Margin | 50° at unity gain with CL = 100 pF - mandates gain ≥5 configuration; violates stability if used in unity-gain follower without external compensation. |
Pinout & Package
Package: 8-pin ceramic DIP (JG), hermetically sealed, rated for −55°C to 125°C operation per MIL-PRF-38535.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal for fine-tuning input offset voltage; connected to external potentiometer wiper for calibration. |
| 2 | IN− | Inverting input node; high-impedance differential pair base; sensitive to PCB leakage and guarding requirements. |
| 3 | IN+ | Non-inverting input node; matched to IN− for common-mode rejection; requires symmetrical layout for optimal CMRR. |
| 4 | VCC− | Negative supply rail connection; must be decoupled within 1 cm using ≥0.1 μF ceramic capacitor to suppress supply noise coupling. |
| 5 | OFFSET N2 | Second null adjustment terminal; used with Pin 1 to form balanced offset trim network per datasheet Figure 4. |
| 6 | OUT | Class-A output stage; capable of ±50 mA drive into 600 Ω; exhibits saturation recovery circuitry for fast overload recovery. |
| 7 | VCC+ | Positive supply rail connection; shares same decoupling requirement as Pin 4; polarity reversal damages device. |
| 8 | NC | No-connect terminal; electrically isolated; must remain unconnected to avoid parasitic coupling or mechanical stress. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated High-Speed Architecture | Enables 50 MHz GBW and 7.5 V/μs slew rate but requires minimum closed-loop gain of 5 for stability - not suitable for unity-gain buffers. |
| Low 1/f & Broadband Voltage Noise | 3.3 nV/√Hz at 10 Hz and 2.5 nV/√Hz at 1 kHz - preserves signal integrity in DC-coupled precision measurement paths with sub-Hz bandwidth requirements. |
| Military Temperature Range Operation | Specified from −55°C to +125°C with 25 μV max VIO - eliminates derating concerns in avionics, downhole tools, and engine control units. |
| Saturation Recovery Circuitry | Reduces output overload recovery time to <1 μs - prevents settling errors in fast-pulsed applications like peak detectors and sample-and-hold amplifiers. |
| High PSRR & CMRR | 144 dB PSRR and 131 dB CMRR typical - rejects power supply ripple and common-mode interference in noisy industrial environments. |
Applications
| Strain Gauge Signal Conditioning | High-Fidelity Audio Preamp |
|---|---|
|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in load cells under thermal cycling. IC Role / Device Role / Timing Role: Primary instrumentation amplifier gain stage with precision offset trimming via Pins 1 and 5. Use Value: 25 μV max VIO ensures ≤0.25% full-scale error at 10 mV input; 2.5 nV/√Hz noise preserves resolution in 24-bit ADC systems. |
Use Scenario: Low-distortion preamplification of microphone signals prior to ADC in professional audio recorders. IC Role / Device Role / Timing Role: High-slew, low-noise non-inverting gain block with gain ≥5 to ensure stability and preserve transient fidelity. Use Value: 7.5 V/μs slew rate avoids slew-induced THD (<0.002%) at 20 kHz full-scale; 50 MHz GBW supports ultralinear frequency response. |
| Laser Diode Current Control | High-Speed Data Acquisition Front-End |
|
Use Scenario: Precision current source driving telecom laser diodes requiring stable bias over −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Transimpedance feedback amplifier in closed-loop current regulator with gain ≥5 for stability. Use Value: 144 dB PSRR rejects switching supply noise; 131 dB CMRR rejects ground bounce in shared PCB return paths. |
Use Scenario: Driving SAR ADC inputs in automated test equipment requiring fast settling and minimal code-dependent errors. IC Role / Device Role / Timing Role: Buffer and gain stage preceding 1 MSPS+ ADCs, configured with gain ≥5 and local decoupling. Use Value: Saturation recovery circuitry ensures <1 μs recovery after overrange events; 50 MHz GBW supports >5 MHz effective signal bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA277MD | Unity-gain stable; 10 MHz GBW; 0.8 μV/°C VIO drift; lower noise (3.5 nV/√Hz at 1 kHz) | Supports unity-gain configurations; better for low-frequency, ultra-low-drift applications but lacks TLE2037AMD's speed | Select OPA277MD when gain flexibility (including G = 1) and long-term drift matter more than bandwidth. |
| AD8675ARZ | Rail-to-rail output; 10 MHz GBW; 2.8 nV/√Hz noise; specified only to +125°C (not −55°C) | Enables single-supply designs and full output swing but lacks military-grade cold-temperature rating and decompensated speed | Select AD8675ARZ for commercial/high-reliability systems needing RRO and simplified supply design, not extended cold operation. |
Compared with OPA277MD and AD8675ARZ, the TLE2037AMD uniquely combines military-temperature operation, decompensated 50 MHz bandwidth, and integrated saturation recovery - making it irreplaceable in high-speed, wide-temperature analog signal chains where gain ≥5 is acceptable.
Availability
TLE2037AMD is available at Aetrix Electronics and suitable for avionics sensor interfaces, downhole instrumentation, engine control units, and defense electronics requiring stable component supply across −55°C to 125°C.
Supply support for TLE2037AMD 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 precision op-amps and high-reliability components.
The TLE2037AMD belongs to TI's Excalibur precision op-amp family, engineered for applications demanding simultaneous low noise, high speed, and extreme temperature resilience - especially in aerospace, defense, and industrial measurement systems.
FAQ
What is the minimum closed-loop gain required for stable operation of the TLE2037AMD?
The TLE2037AMD is decompensated and requires a minimum closed-loop gain of 5 to maintain ≥50° phase margin and prevent oscillation. Using it in unity-gain or gain-of-2 configurations without external compensation will result in instability. This is explicitly documented in the datasheet's operating characteristics section and confirmed by Figure 3 test circuit notes.
Does the TLE2037AMD support operation at −55°C, and what is its maximum input offset voltage across that range?
Yes, the TLE2037AMD is fully specified from −55°C to +125°C per MIL-PRF-38535. Its maximum input offset voltage over this full range is 105 μV for the 'A' grade (TLE2037AMD), as confirmed in the TLE20x7M electrical characteristics table on page 10 of the datasheet.
Can the TLE2037AMD be used as a direct replacement for the TLE2027AMD in an existing design?
No - the TLE2037AMD is not a drop-in replacement for the TLE2027AMD. While both share pinout and package, the TLE2037AMD has 50 MHz GBW and requires gain ≥5, whereas the TLE2027AMD is unity-gain stable with 13 MHz GBW. Substituting without circuit redesign risks oscillation and degraded settling.
What is the purpose of Pins 1 and 5 (OFFSET N1 and OFFSET N2) on the TLE2037AMD?
Pins 1 and 5 provide access to the amplifier's internal offset nulling network. A 20-kΩ potentiometer is connected between them, with its wiper grounded, allowing manual trimming of input offset voltage to <10 μV. This is essential for high-accuracy DC-coupled applications and is detailed in the datasheet's Figure 4 and "Offset Nulling" subsection.
How does the saturation recovery circuitry in the TLE2037AMD improve system performance?
The saturation recovery circuitry reduces output overload recovery time to under 1 μs - significantly faster than standard op-amps. This prevents extended settling errors in applications like peak detectors, pulse amplifiers, or multiplexed sensor systems where the amplifier may frequently encounter overdrive conditions. The feature is explicitly called out in the device description on page 1 of the datasheet.
TLE2037AMD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 7.5V/µs
- Gain Bandwidth Product:
- 50 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- 3.8mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 38 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2037AMD FAQ
1.How can I place an order for TLE2037AMD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2037AMD 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 TLE2037AMD reliable?
The price and inventory of TLE2037AMD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2037AMD is usually 5 days.
3.What payment methods are accepted for TLE2037AMD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2037AMD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2037AMD?
TLE2037AMD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2037AMD 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 TLE2037AMD?
For technical support, including TLE2037AMD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2037AMD requirements.
6.How does Aetrix verify that TLE2037AMD is sourced from the original manufacturer or authorized distributors?
All TLE2037AMD 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 TLE2037AMD meets industry standards.
7.What is the process for return or replacement of TLE2037AMD?
All TLE2037AMD units undergo pre-shipment inspection (PSI). If there is an issue with TLE2037AMD, 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 TLE2037AMD part is unused and in its original packaging.
Return procedure for TLE2037AMD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2037AMD Tags
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