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Texas Instruments TLE2037CD
- Part No.:
- TLE2037CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2037CD.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,115
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Product details
Overview
TLE2037CD from Texas Instruments is a decompensated high-speed precision operational amplifier optimized for closed-loop gains ≥5, delivering 50 MHz gain-bandwidth product, 7.5 V/μs slew rate, and ultra-low 2.5 nV/√Hz input voltage noise at 1 kHz - used in precision instrumentation front-ends and high-fidelity signal conditioning circuits.
For engineers reviewing the TLE2037CD datasheet, TLE2037CD pinout, TLE2037CD application, or TLE2037CD equivalent, key selection criteria include its decompensated stability requirement (minimum gain = 5), low-noise performance below 10 kHz, rail-to-rail output swing capability with ±15 V supplies, and compatibility with standard SOIC-8 PCB footprints.
Technical Context
The TLE2037CD uses TI's Excalibur bipolar process to achieve simultaneous dc precision and ac speed, featuring a decompensated internal compensation network that enables 50 MHz GBW but mandates minimum closed-loop gain of 5 for stability. Its input stage employs matched transistor pairs for low offset drift and high CMRR (131 dB typ).
Output saturation recovery circuitry minimizes settling time after overdrive, while the dual offset null pins (OFFSET N1, OFFSET N2) allow external trimming to reduce input offset voltage below 25 μV max across 0°C to 70°C. The device operates from ±4 V to ±19 V supplies with 3.8 mA typical quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 50 MHz - supports stable closed-loop designs up to 50 MHz at gain ≥5, enabling wideband active filters and fast ADC drivers. |
| Slew Rate | 7.5 V/μs - ensures ≤133 ns full-scale settling for 10 V step inputs, critical for pulse amplification and DAC output buffering. |
| Input Voltage Noise | 2.5 nV/√Hz @ 1 kHz - preserves SNR in low-level sensor signal chains (e.g., strain gauge, thermopile) without requiring additional filtering. |
| Input Offset Voltage | 25 μV max @ 25°C - enables sub-0.01% accuracy in 12-bit+ measurement systems without factory calibration. |
| Common-Mode Rejection | 131 dB typ - rejects >2×10⁶:1 common-mode interference in differential sensing applications like current shunt monitoring. |
| Supply Voltage Range | ±4 V to ±19 V - supports operation from dual ±5 V logic rails up to high-voltage industrial ±15 V systems. |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded control and test equipment environments. |
Pinout & Package
Package: SOIC-8 (D package), 8-pin small-outline integrated circuit with standard 1.27 mm pitch, surface-mount compatible, tape-and-reel available (suffix R).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset Null Input | Connects to one end of external 10 kΩ potentiometer for manual input offset trimming. |
| 2 (IN−) | Inverting Input | Differential input node; high-impedance (10¹² Ω) bipolar input stage with 6 nA max bias current. |
| 3 (IN+) | Non-Inverting Input | Differential input node; matched to IN− for optimal CMRR and offset drift performance. |
| 4 (VCC−) | Negative Supply Rail | Accepts −4 V to −19 V; must be decoupled with ≥0.1 μF ceramic capacitor near pin. |
| 5 (OFFSET N2) | Offset Null Input | Connects to other end of same 10 kΩ potentiometer as Pin 1 for balanced nulling. |
| 6 (OUT) | Amplifier Output | Capable of ±13.5 V swing into 2 kΩ load with <0.002% THD at 10 kHz. |
| 7 (VCC+) | Positive Supply Rail | Accepts +4 V to +19 V; requires local 0.1 μF ceramic bypass capacitor. |
| 8 (NC) | No Connect | Internally unconnected; must remain floating per TI design - no routing or grounding. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated High-Speed Architecture | Enables 50 MHz GBW and 7.5 V/μs slew rate while maintaining stability only at closed-loop gain ≥5. |
| Ultra-Low 1/f Noise Floor | 3.3 nV/√Hz @ 10 Hz enables precision DC-coupled measurements without notch filtering. |
| Dual Offset Null Pins | Allows external trimming to reduce input offset voltage below 10 μV in production calibration. |
| Saturation Recovery Circuitry | Reduces overload recovery time to <1 μs, preventing dead-time errors in fast feedback loops. |
| High Open-Loop Gain | 45 V/μV (45 million) at RL = 2 kΩ ensures <0.1 ppm linearity error in precision gain stages. |
Applications
| Strain Gauge Signal Conditioning | High-Fidelity Audio Preamp |
|---|---|
Use Scenario: Amplifying microvolt-level bridge outputs from metal foil strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with gain ≥100, rejecting common-mode noise from long cable runs. Use Value: 2.5 nV/√Hz input noise and 131 dB CMRR preserve resolution down to 0.001% full scale without chopper stabilization. | Use Scenario: Low-distortion preamplification of microphone or phono cartridge signals before ADC conversion. IC Role / Device Role / Timing Role: DC-coupled, decompensated gain block operating at AV = 10–20 with bandwidth >200 kHz. Use Value: <0.002% THD at 10 kHz and 7.5 V/μs slew rate prevent slew-induced distortion in transient-rich audio waveforms. |
| Laser Diode Current Control | High-Speed Data Acquisition Front-End |
Use Scenario: Precision current source driving telecom laser diodes requiring stable bias with <100 nA ripple. IC Role / Device Role / Timing Role: Transconductance amplifier in closed-loop configuration with sense resistor feedback. Use Value: 25 μV max VIO and 0.4 μV/°C tempco ensure <±0.1% current accuracy over 0°C–70°C ambient range. | Use Scenario: Buffering and gain-setting stage ahead of 1 MSPS SAR ADCs in automated test equipment. IC Role / Device Role / Timing Role: Unity-gain stable buffer (with external compensation) or gain-of-5 driver for ADC input. Use Value: 50 MHz GBW and 7.5 V/μs slew rate support full-scale step response within 1 LSB settling time for 12-bit systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211IDR | Single-supply capable (2.2–36 V), lower noise (1.1 nV/√Hz), but unity-gain stable and slower (45 MHz GBW). | Preferred for single-rail systems and ultra-low-noise DC applications; not suitable for decompensated high-speed designs. | Select OPA211IDR when supply flexibility or lower 1/f noise outweighs need for 50 MHz bandwidth at gain ≥5. |
| AD8675ARZ | Unity-gain stable, lower offset (12 μV max), higher CMRR (130 dB), but slower (10 MHz GBW, 2.5 V/μs). | Better for precision DC amplification where bandwidth <1 MHz suffices; lacks TLE2037CD's speed/noise balance. | Choose AD8675ARZ for high-accuracy, low-drift applications with moderate bandwidth requirements and no stability constraints. |
Compared with OPA211IDR and AD8675ARZ, the TLE2037CD uniquely delivers 50 MHz bandwidth with 2.5 nV/√Hz noise under decompensated operation - making it irreplaceable in gain ≥5, wideband, low-noise analog signal paths where stability can be guaranteed by design.
Availability
TLE2037CD is available at Aetrix Electronics and suitable for precision instrumentation, high-fidelity audio signal chains, and industrial sensor interface circuits requiring stable component supply across commercial temperature ranges.
Supply support for TLE2037CD 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 expertise in precision op-amp design and manufacturing.
The TLE2037CD belongs to TI's Excalibur precision op-amp family, engineered specifically for applications demanding both high dc accuracy and wideband ac performance in a single monolithic IC.
FAQ
What is the minimum closed-loop gain required for stable operation of the TLE2037CD?
The TLE2037CD is decompensated and requires a minimum closed-loop gain of 5 for stable operation. Operating at lower gains may cause oscillation or excessive ringing due to insufficient phase margin. This is explicitly specified in the datasheet's operating characteristics section and confirmed by the 50° phase margin measured at unity gain with RL = 2 kΩ and CL = 100 pF. Always verify stability with actual layout parasitics using SPICE simulation before finalizing the TLE2037CD design.
Can the TLE2037CD be used with single-supply configurations?
No, the TLE2037CD is designed exclusively for dual-supply operation from ±4 V to ±19 V. It lacks rail-to-rail input capability and cannot accept input voltages within 1.2 V of either supply rail. Common-mode input range is specified as ±10.5 V at full temperature range, requiring symmetric supplies for proper function. For single-supply applications, consider alternatives like the OPA211 series, but note they do not match the TLE2037CD's decompensated speed-noise profile.
How does the offset nulling circuit work on the TLE2037CD?
The TLE2037CD provides two dedicated offset null pins (Pin 1: OFFSET N1; Pin 5: OFFSET N2) that connect to the ends of an external 10 kΩ potentiometer, with the wiper tied to VCC−. Adjusting the potentiometer injects a small corrective current into the input stage, trimming input offset voltage to <10 μV in calibrated systems. This method is effective across temperature and does not degrade noise or bandwidth - unlike digital calibration techniques - and is fully supported in the TLE2037CD's SOIC-8 pinout and Excalibur process design.
What is the maximum output voltage swing of the TLE2037CD with ±15 V supplies?
With ±15 V supplies and a 2 kΩ load, the TLE2037CD delivers a maximum output voltage swing of ±13.5 V (i.e., from −13.5 V to +13.5 V). At 600 Ω load, swing reduces to ±13 V. These values are specified in the "Maximum positive/negative peak output voltage swing" tables for TLE20x7C devices and reflect tested performance across 0°C to 70°C. The output stage uses complementary bipolar transistors to achieve this near-rail performance without crossover distortion.
Is the TLE2037CD pin-compatible with the TLE2027CD?
Yes, the TLE2037CD and TLE2027CD share identical SOIC-8 (D) packaging and pinout, including OFFSET N1, OFFSET N2, IN−, IN+, VCC−, VCC+, OUT, and NC assignments. However, they differ electrically: the TLE2037CD is decompensated (50 MHz GBW, 7.5 V/μs), while the TLE2027CD is unity-gain stable (15 MHz GBW, 2.8 V/μs). Swapping them requires verifying loop stability and bandwidth requirements - the TLE2037CD is not a drop-in replacement unless gain ≥5 is maintained.
TLE2037CD 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:
- 20 µV
- Current - Supply:
- 3.8mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 38 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2037CD FAQ
1.How can I place an order for TLE2037CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2037CD 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 TLE2037CD reliable?
The price and inventory of TLE2037CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2037CD is usually 5 days.
3.What payment methods are accepted for TLE2037CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2037CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2037CD?
TLE2037CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2037CD 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 TLE2037CD?
For technical support, including TLE2037CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2037CD requirements.
6.How does Aetrix verify that TLE2037CD is sourced from the original manufacturer or authorized distributors?
All TLE2037CD 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 TLE2037CD meets industry standards.
7.What is the process for return or replacement of TLE2037CD?
All TLE2037CD units undergo pre-shipment inspection (PSI). If there is an issue with TLE2037CD, 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 TLE2037CD part is unused and in its original packaging.
Return procedure for TLE2037CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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