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Texas Instruments TLE2037CDG4
- Part No.:
- TLE2037CDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2037CDG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,428
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Product details
Overview
TLE2037CDG4 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 (0°C to 70°C), and operates on ±4 V to ±19 V supplies. It serves in low-noise signal conditioning stages of test equipment, medical instrumentation, and high-fidelity analog front-ends.
For engineers reviewing the TLE2037CDG4 datasheet, TLE2037CDG4 pinout, TLE2037CDG4 application, or TLE2037CDG4 equivalent, key selection criteria include its decompensated stability requirement (AV ≥ 5), low 1/f noise corner, rail-to-rail output swing capability (±13.5 V into 2 kΩ), and Excalibur process–enabled dc precision under dynamic load conditions.
Technical Context
The TLE2037CDG4 uses a decompensated internal compensation scheme that trades unity-gain stability for higher bandwidth and slew rate versus the TLE2027 series. Its 50 MHz gain-bandwidth product and 50° phase margin at unity gain require minimum closed-loop gain of 5 to ensure stable operation without external compensation.
Manufactured on TI's Excalibur bipolar process, it integrates saturation recovery circuitry for fast overdrive recovery and achieves 131 dB common-mode rejection ratio and 144 dB supply-voltage rejection ratio - enabling high-accuracy amplification in noisy industrial power environments with wide supply ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 50 MHz - supports stable closed-loop designs up to 10 MHz at AV = 5, enabling wideband active filtering and high-speed sensor signal amplification. |
| Slew rate | 7.5 V/μs - ensures <100 ns settling to 0.1% for 10 V step inputs, critical for pulse amplification and fast DAC buffer applications. |
| Input voltage noise | 2.5 nV/√Hz at 1 kHz - ultra-low broadband noise preserves SNR in microphone preamps and precision ADC drivers. |
| Input offset voltage | 25 μV max (0°C to 70°C) - enables sub-0.01% gain error in 16-bit data acquisition systems without trimming. |
| Supply voltage range | ±4 V to ±19 V - accommodates dual-rail industrial sensors and legacy ±15 V systems without level-shifting circuitry. |
| CMRR / PSRR | 131 dB / 144 dB - rejects >10⁶× common-mode and supply ripple interference, essential for high-side current sensing and bridge amplifier topologies. |
| Output swing | ±13.5 V into 2 kΩ - delivers full-scale dynamic range with minimal headroom loss when driving 16-bit SAR ADC references. |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), D package, surface-mount, tape-and-reel compatible (suffix R available).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OFFSET N1 | Null adjustment terminal - connects to potentiometer wiper for manual input offset trimming; unused pins must be left open or tied to VCC−. |
| 2 | IN− | Inverting input - high-impedance differential node; requires matched trace impedance and guarding in low-level signal paths. |
| 3 | IN+ | Non-inverting input - referenced to system ground or common-mode bias; sensitive to EMI coupling due to high Zin. |
| 4 | VCC− | Negative supply rail - must be decoupled with ≥0.1 μF ceramic capacitor placed ≤5 mm from pin; shared return with signal ground increases noise susceptibility. |
| 5 | OFFSET N2 | Null adjustment terminal - second end of offset trim potentiometer; forms balanced null network with Pin 1. |
| 6 | VCC+ | Positive supply rail - decoupling identical to Pin 4; asymmetrical supply rejection necessitates matched bypassing on both rails. |
| 7 | OUT | Amplified output - capable of ±50 mA short-circuit current; requires thermal derating above 70°C ambient per D-package dissipation table. |
| 8 | NC | No connect - internally unconnected; must remain floating; routing traces to this pin may induce parasitic capacitance affecting phase margin. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated architecture | Enables 50 MHz GBW and 7.5 V/μs slew rate while requiring AV ≥ 5 - reduces component count in fixed-gain instrumentation amplifier stages. |
| Saturation recovery circuitry | Minimizes overload recovery time to <1 μs - prevents signal distortion during transient overvoltage events in oscilloscope vertical amplifiers. |
| Excalibur bipolar process | Delivers 25 μV max VIO and 0.2 μV/°C tempco across 0°C–70°C - eliminates need for auto-zeroing in portable battery-powered precision meters. |
| Low 1/f noise corner | 3.3 nV/√Hz at 10 Hz - maintains high SNR in EEG and seismic sensor front-ends where sub-100 Hz signals dominate. |
| High open-loop gain | 45 V/μV (typ) into 2 kΩ - ensures <0.001% linearity error in 12-bit+ transducer signal chains with passive feedback networks. |
Applications
| Medical Instrumentation | Test & Measurement Equipment |
|---|---|
|
Use Scenario: Amplifying low-amplitude biopotential signals (ECG, EEG) with minimal added noise and drift. IC Role / Device Role / Timing Role: Primary gain stage in analog front-end, configured as non-inverting amplifier with AV = 10. Use Value: 2.5 nV/√Hz input noise and 25 μV max VIO preserve microvolt-level signal integrity without post-acquisition digital correction. |
Use Scenario: Driving high-input-capacitance oscilloscope probes or active filter sections in signal generators. IC Role / Device Role / Timing Role: Unity-gain buffer with AV = 5 minimum configuration to maintain 50 MHz bandwidth and 50° phase margin. Use Value: 7.5 V/μs slew rate ensures faithful reproduction of 10 MHz square waves with <5% overshoot and <100 ns rise time. |
| Industrial Process Control | High-Fidelity Audio Signal Path |
|
Use Scenario: Conditioning outputs from strain-gauge bridges and RTD sensors in PLC analog I/O modules. IC Role / Device Role / Timing Role: Precision difference amplifier with matched external resistors, operating from ±15 V rails. Use Value: 131 dB CMRR rejects common-mode noise from 4–20 mA loop transmitters; 144 dB PSRR suppresses switching regulator ripple. |
Use Scenario: Low-noise preamplifier stage for condenser microphones and phono cartridge equalization circuits. IC Role / Device Role / Timing Role: Inverting gain stage with AV = 20, biased at mid-supply using dual ±15 V rails. Use Value: 3.3 nV/√Hz at 10 Hz minimizes audible hiss; saturation recovery prevents clipping artifacts during percussive transients. |
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 | Unity-gain stable, 45 MHz GBW, 2.2 nV/√Hz noise, 0.1 μV/°C VIO drift - lower noise but reduced bandwidth and no decompensation. | Preferred for AV = 1–2 applications (e.g., I/V converters); unsuitable for AV ≥ 5 high-speed loops requiring 50 MHz BW. | Select OPA211IDR when unity-gain stability and lowest possible noise dominate over maximum bandwidth. |
| AD8675ARZ | Unity-gain stable, 10 MHz GBW, 2.8 nV/√Hz noise, 125 μV max VIO - lower speed, higher offset, but superior rail-to-rail input capability. | Better suited for single-supply, low-voltage sensor interfaces (e.g., 3.3 V IoT nodes); cannot replace TLE2037CDG4 in ±15 V high-speed systems. | Choose AD8675ARZ for cost-sensitive, low-power, single-supply designs where 10 MHz bandwidth suffices. |
Compared with OPA211IDR and AD8675ARZ, the TLE2037CDG4 uniquely balances decompensated 50 MHz bandwidth, 7.5 V/μs slew rate, and 25 μV max offset - making it irreplaceable in fixed-gain, high-dynamic-range analog signal chains where stability constraints permit AV ≥ 5.
Availability
TLE2037CDG4 is available at Aetrix Electronics and suitable for medical instrumentation, test & measurement equipment, and industrial process control systems requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TLE2037CDG4 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 company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog design.
The TLE2037 series belongs to TI's Excalibur precision op-amp family, engineered for high-speed, low-noise, dc-accurate signal conditioning in demanding industrial and instrumentation applications.
FAQ
What is the minimum closed-loop gain required for stable operation of the TLE2037CDG4?
The TLE2037CDG4 is decompensated and requires a minimum closed-loop gain of 5 to ensure stability. Operating at unity gain or AV < 5 risks oscillation due to insufficient phase margin; external compensation is not recommended as it degrades the specified 50 MHz bandwidth and 7.5 V/μs slew rate. Always verify stability with load-dependent phase margin measurements per Figure 3 in the SLOS192C datasheet.
Can the TLE2037CDG4 operate from a single supply voltage?
The TLE2037CDG4 supports single-supply operation only if the input common-mode range and output swing remain within specifications: VICR = −10.5 V to +10.5 V and VOM = ±13.5 V into 2 kΩ at TA = 25°C. With a +24 V single supply, VCC− = 0 V, so the input must stay ≥0 V and output cannot swing below ~1.5 V - limiting usable dynamic range. Dual supplies (e.g., ±15 V) are strongly preferred to exploit full rail-to-rail output capability and specified noise performance.
How does the TLE2037CDG4 differ from the TLE2027CDG4?
The TLE2037CDG4 is decompensated for higher speed (50 MHz GBW, 7.5 V/μs slew rate), while the TLE2027CDG4 is unity-gain stable with 15 MHz GBW and 2.8 V/μs slew rate. Both share identical pinout, 25 μV max VIO, and Excalibur process benefits, but the TLE2037CDG4 mandates AV ≥ 5 and exhibits 50° phase margin vs. 55° in the TLE2027CDG4. Use TLE2037CDG4 only when bandwidth and slew rate outweigh unity-gain flexibility.
What is the purpose of Pins 1 and 5 (OFFSET N1 and OFFSET N2) on the TLE2037CDG4?
Pins 1 and 5 form a null adjustment interface for manual input offset voltage trimming. A 10-kΩ potentiometer is connected between these pins, with its wiper grounded; adjusting the potentiometer balances internal input stage mismatches to reduce VIO to <1 μV. If trimming is unnecessary, both pins must be left unconnected - tying them together or to supply rails introduces errors and violates absolute maximum ratings.
Is the TLE2037CDG4 suitable for driving ADC inputs in high-resolution data acquisition systems?
Yes - the TLE2037CDG4 is well-suited for driving 16- to 18-bit SAR and delta-sigma ADCs. Its ±13.5 V output swing into 2 kΩ, 2.5 nV/√Hz noise floor, and 7.5 V/μs slew rate enable full-scale, low-distortion sampling of fast transient signals. Ensure proper layout: use Kelvin-connected feedback, minimize trace inductance, and place 0.1 μF ceramic decoupling capacitors ≤3 mm from Pins 4 and 6 to prevent supply-induced noise coupling into the TLE2037CDG4 output.
TLE2037CDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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
TLE2037CDG4 FAQ
1.How can I place an order for TLE2037CDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2037CDG4 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 TLE2037CDG4 reliable?
The price and inventory of TLE2037CDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2037CDG4 is usually 5 days.
3.What payment methods are accepted for TLE2037CDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2037CDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2037CDG4?
TLE2037CDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2037CDG4 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 TLE2037CDG4?
For technical support, including TLE2037CDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2037CDG4 requirements.
6.How does Aetrix verify that TLE2037CDG4 is sourced from the original manufacturer or authorized distributors?
All TLE2037CDG4 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 TLE2037CDG4 meets industry standards.
7.What is the process for return or replacement of TLE2037CDG4?
All TLE2037CDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2037CDG4, 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 TLE2037CDG4 part is unused and in its original packaging.
Return procedure for TLE2037CDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2037CDG4 Tags
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