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Texas Instruments TLE2037AQDRQ1
- Part No.:
- TLE2037AQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2037AQDRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,670
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Product details
Overview
TLE2037AQDRQ1 from Texas Instruments is a decompensated, high-speed, precision operational amplifier qualified for automotive applications (−40°C to 125°C), featuring 50 MHz unity-gain bandwidth, −7.5 V/µs slew rate, 25 µV max input offset voltage at 25°C, and 2.5 nV/√Hz input voltage noise at 1 kHz - used in active filter stages and sensor signal conditioning within engine control units.
For engineers reviewing the TLE2037AQDRQ1 datasheet, TLE2037AQDRQ1 pinout, TLE2037AQDRQ1 application, or TLE2037AQDRQ1 equivalent, key selection criteria include minimum closed-loop gain ≥5 for stability, SOIC-8 package compatibility, automotive-grade temperature range, and low-noise AC performance with DC precision.
Technical Context
The TLE2037AQDRQ1 uses TI's Excalibur process to achieve simultaneous high dc precision and wide ac bandwidth. Its decompensated internal architecture enables 50 MHz unity-gain bandwidth and 7.5 V/µs slew rate but requires a minimum closed-loop gain of 5 to ensure phase margin ≥50° and stable operation.
It integrates saturation recovery circuitry for fast output recovery after overdrive and supports rail-to-rail common-mode input voltage (±10.2 V at full temperature range) with high open-loop gain (19 V/µV into 600 Ω) and exceptional supply rejection (144 dB typ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 50 MHz typical - enables stable operation in high-frequency active filters and wideband amplifiers when gain ≥5. |
| Slew Rate | −7.5 V/µs typical - supports fast transient response in pulse amplification and ADC driver circuits. |
| Input Offset Voltage | 25 µV maximum at 25°C - ensures sub-mV error in precision instrumentation and current-sense amplification. |
| Input Voltage Noise | 2.5 nV/√Hz at 1 kHz - critical for low-noise sensor front-ends like piezoelectric or strain gauge interfaces. |
| Common-Mode Input Range | −10.2 V to +10.2 V at full temperature - allows direct interfacing with ±12 V industrial sensors without level-shifting. |
| Supply Voltage Range | ±4 V to ±19 V - accommodates dual-supply systems from ±5 V logic-compatible to ±15 V legacy analog rails. |
| Operating Temperature | −40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood automotive electronics. |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, standard pinout, 1.27 mm pitch, 4.9 mm × 3.9 mm body size.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset null input 1 | Connects to external potentiometer wiper for manual input offset trimming. |
| 2 (IN−) | Inverting input | Differential input node; high impedance (15 nA max bias current) for precision feedback networks. |
| 3 (IN+) | Non-inverting input | Differential input node; matched to IN− for optimal CMRR (131 dB typ). |
| 4 (VCC−) | Negative supply rail | Accepts −4 V to −19 V; must be decoupled locally to minimize PSRR degradation. |
| 5 (OFFSET N2) | Offset null input 2 | Completes offset trim network; used with Pin 1 and external resistor/pot. |
| 6 (OUT) | Amplifier output | Capable of ±50 mA short-circuit current; drives 600 Ω loads with <0.002% THD. |
| 7 (VCC+) | Positive supply rail | Accepts +4 V to +19 V; supplies internal bias and output stage quiescent current. |
| 8 (NC) | No connect | Internally unused; must remain unconnected per datasheet to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Decompensated high-speed design | Enables 50 MHz bandwidth only when configured for gain ≥5 - prevents instability in unity-gain buffers. |
| Saturation recovery circuitry | Reduces output recovery time after overdrive, critical for pulse amplification in engine knock sensing. |
| Automotive qualification (Q1) | Tested and characterized across −40°C to +125°C per AEC-Q100, including HTOL and ESD (2 kV HBM). |
| Low 1/f noise corner | 3.3 nV/√Hz at 10 Hz - preserves signal integrity in low-frequency sensor measurements (e.g., exhaust gas oxygen). |
| High open-loop gain at light load | 45 V/µV into 2 kΩ - maintains linearity and accuracy in high-impedance feedback configurations. |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Automotive Active Filter Stage |
|---|---|
Use Scenario: Amplifying low-level signals from crankshaft position Hall-effect sensors before ADC sampling. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 10, rejecting common-mode noise from ignition transients. Use Value: 25 µV max VIO ensures ≤250 µV total offset error at gain 10, preserving timing resolution for misfire detection. | Use Scenario: 2nd-order Sallen-Key low-pass filter (fc = 10 kHz) removing PWM switching noise from battery voltage monitoring. IC Role / Device Role / Timing Role: Unity-gain stable buffer and active filter integrator with 50 MHz GBW enabling sharp roll-off. Use Value: 50 MHz bandwidth supports >10× fc margin, ensuring minimal phase shift and group delay distortion in safety-critical voltage telemetry. |
| Onboard Charger (OBC) Current Sense | ADAS Radar Front-End Amplifier |
Use Scenario: Amplifying mV-level shunt voltage in bidirectional 30 A battery charging current path. IC Role / Device Role / Timing Role: High-precision, low-drift difference amplifier with external gain resistors. Use Value: 0.4 µV/°C max αVIO minimizes thermal drift error across −40°C to 125°C ambient, improving SOC estimation accuracy. | Use Scenario: Intermediate frequency (IF) amplification stage in 77 GHz radar receiver chain before ADC. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate gain block operating at 1–10 MHz IF band. Use Value: 2.5 nV/√Hz noise density and −7.5 V/µs slew rate preserve SNR and pulse fidelity for object distance resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AQDRQ1 | Zero-drift architecture; 0.02 µV/°C offset drift vs. 0.4 µV/°C; lower bandwidth (350 kHz) and slew rate (0.16 V/µs). | Better for ultra-low-drift DC-coupled sensors (e.g., thermopiles); unsuitable for >100 kHz signal paths. | Select when long-term offset stability dominates speed requirements; not drop-in for TLE2037AQDRQ1's high-frequency roles. |
| LM7332QMA/NOPB | Rail-to-rail input/output; higher supply current (2.3 mA/ch vs. 5.3 mA); wider supply range (±1.5 V to ±18 V); no offset null pins. | Preferred for single-supply or mixed-voltage systems; lacks manual offset trim capability needed in high-accuracy calibration loops. | Choose for space-constrained RRO designs where offset trim is handled digitally; verify stability with gain ≥1, unlike TLE2037AQDRQ1's gain ≥5 requirement. |
Compared with OPA2333AQDRQ1 and LM7332QMA/NOPB, the TLE2037AQDRQ1 uniquely balances 50 MHz bandwidth, 25 µV max VIO, and automotive qualification - making it irreplaceable in high-speed, high-precision analog signal chains where both speed and dc accuracy are simultaneously required.
Availability
TLE2037AQDRQ1 is available at Aetrix Electronics and suitable for engine control units, battery management systems, and ADAS radar modules requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for TLE2037AQDRQ1 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 automotive-grade product development and manufacturing expertise.
The TLE20xx-Q1 series was designed specifically for high-reliability automotive signal conditioning - combining Excalibur-process precision with decompensated speed to upgrade legacy systems while meeting AEC-Q100 stress testing requirements.
FAQ
What is the minimum closed-loop gain required for stable operation of the TLE2037AQDRQ1?
The TLE2037AQDRQ1 is decompensated and requires a minimum closed-loop gain of 5 to ensure ≥50° phase margin and prevent oscillation. Operating at unity gain or gain <5 risks instability due to insufficient internal compensation - this is explicitly mandated in the datasheet's "recommended operating conditions" and Figure 3 test circuit notes.
Does the TLE2037AQDRQ1 support rail-to-rail input or output operation?
The TLE2037AQDRQ1 does not support rail-to-rail input or output. Its common-mode input range extends to ±10.2 V (with ±15 V supplies), and its output swing is typically ±13.5 V into 2 kΩ - leaving ~1.5 V headroom from each rail. For true rail-to-rail performance, consider alternatives like the LM7332QMA/NOPB, but note its different gain stability requirements.
How is the offset null functionality implemented on the TLE2037AQDRQ1?
The TLE2037AQDRQ1 provides dedicated offset null terminals (Pins 1 and 5) for external trimming. A 10 kΩ potentiometer is connected between Pins 1 and 5, with its wiper tied to VCC− (Pin 4). This adjusts the internal input stage current balance to reduce input offset voltage - a feature absent in many modern zero-drift op-amps but essential for factory calibration in high-accuracy automotive subsystems.
What is the maximum capacitive load the TLE2037AQDRQ1 can drive while maintaining stability?
When configured for minimum gain ≥5, the TLE2037AQDRQ1 remains stable driving up to 100 pF capacitive load (per Figure 3 test conditions and typical characteristics). Driving larger loads (e.g., >200 pF) requires isolation resistance (e.g., 50–100 Ω in series with output) or gain adjustment to preserve phase margin - verified via small-signal pulse response in Figure 39.
Is the TLE2037AQDRQ1 pin-compatible with other devices in the TLE20x7-Q1 family?
Yes - the TLE2037AQDRQ1 shares identical SOIC-8 (D package) pinout and footprint with TLE2027AQDRQ1, TLE2037QDRQ1, and TLE2027QDRQ1. All variants use the same pin mapping (including OFFSET N1/N2, IN±, VCC±, OUT, NC), enabling direct PCB reuse across precision (TLE2027x) and high-speed (TLE2037x) variants when layout accommodates thermal and stability constraints.
TLE2037AQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2037AQDRQ1 FAQ
1.How can I place an order for TLE2037AQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2037AQDRQ1 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 TLE2037AQDRQ1 reliable?
The price and inventory of TLE2037AQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2037AQDRQ1 is usually 5 days.
3.What payment methods are accepted for TLE2037AQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2037AQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2037AQDRQ1?
TLE2037AQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2037AQDRQ1 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 TLE2037AQDRQ1?
For technical support, including TLE2037AQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2037AQDRQ1 requirements.
6.How does Aetrix verify that TLE2037AQDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLE2037AQDRQ1 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 TLE2037AQDRQ1 meets industry standards.
7.What is the process for return or replacement of TLE2037AQDRQ1?
All TLE2037AQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE2037AQDRQ1, 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 TLE2037AQDRQ1 part is unused and in its original packaging.
Return procedure for TLE2037AQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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