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Texas Instruments TLV2371QDRQ1
- Part No.:
- TLV2371QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2371QDRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,506
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Product details
Overview
TLV2371QDRQ1 from Texas Instruments is an automotive-grade rail-to-rail input/output operational amplifier optimized for precision signal conditioning in engine control units, battery management systems, and HEV/EV inverters. It delivers 3 MHz gain-bandwidth, 2.4 V/µs slew rate, 550 µA supply current per channel, 39 nV/√Hz input voltage noise, and operates from 2.7 V to 16 V across –40°C to 125°C.
For engineers reviewing the TLV2371QDRQ1 datasheet, TLV2371QDRQ1 pinout, TLV2371QDRQ1 application, or TLV2371QDRQ1 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, ultra-low 1 pA input bias current, rail-to-rail output swing within 100 mV of rails at 1 mA load, and SOT-23-5 packaging for space-constrained automotive PCB layouts.
Technical Context
The TLV2371QDRQ1 uses CMOS input stage architecture enabling high-impedance sensing and low offset drift (2 µV/°C typical), critical for current-sense amplification and sensor front-ends in safety-critical automotive subsystems. Its rail-to-rail common-mode input range extends to both supply rails, eliminating phase reversal and supporting direct connection to battery-sensed signals without level-shifting.
Internally compensated for unity-gain stability with 65° phase margin into 100 pF capacitive load, the device supports robust operation in noisy automotive environments. The absence of shutdown functionality simplifies power sequencing but requires external enable control in low-power sleep modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports direct 12-V battery connection and start-stop system operation without LDO pre-regulation. |
| Gain-Bandwidth Product | 3 MHz - enables stable closed-loop gain up to ~30 at 100 kHz for motor current feedback loop filtering. |
| Slew Rate | 2.4 V/µs - ensures <2 µs 0.1% settling for 1-V step inputs, suitable for fast transient detection in BMS cell monitoring. |
| Input Bias Current | 1 pA (typ) - minimizes voltage error across high-impedance sensor bridges or thermistor networks in cabin climate control. |
| Input Voltage Noise | 39 nV/√Hz at 1 kHz - preserves SNR in low-level analog front-ends such as oxygen sensor signal conditioning. |
| Common-Mode Input Range | 0 V to VDD - allows direct interface with shunt-based current sense circuits referenced to battery ground or high-side configurations. |
| Output Voltage Swing | Within 100 mV of rails at 1 mA - delivers full dynamic range into 10-kΩ ADC input loads without headroom loss. |
Pinout & Package
TLV2371QDRQ1 is packaged in a 5-pin SOT-23 (DBV) case measuring 2.90 mm × 1.60 mm, optimized for automated placement and thermal performance in dense automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail voltage swing; drives ADC inputs, comparator thresholds, or transimpedance feedback nodes directly. |
| 2 - IN− | Inverting input | Accepts feedback signal or inverted sensor input; high impedance (1 TΩ) prevents loading of precision resistive dividers. |
| 3 - IN+ | Noninverting input | Receives reference or sensor signal; common-mode range includes GND and VDD, enabling single-supply high-side sensing. |
| 4 - GND | Negative power supply | Low-impedance return path for signal and supply currents; must be connected to system ground plane with minimal trace inductance. |
| 5 - VDD | Positive power supply | Accepts 2.7–16 V; internal ESD protection rated ±2 kV HBM ensures robustness during assembly and field operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient operation with HBM ±2 kV and CDM ±500 V ESD ratings - meets automotive electronics reliability requirements. |
| Rail-to-rail input and output | Enables full utilization of ADC reference voltage without external level-shifting; eliminates clipping in wide-dynamic-range sensor interfaces. |
| 550 µA supply current per channel | Reduces quiescent power in always-on vehicle modules (e.g., body control wake-up circuits) while maintaining 3-MHz bandwidth. |
| 1 pA input bias current | Prevents significant offset error in high-impedance pH sensors, thermopiles, or piezoelectric transducers used in occupant detection systems. |
| 39 nV/√Hz input voltage noise | Supports accurate measurement of microvolt-level signals from strain gauges or Hall-effect current sensors in EPS and brake-by-wire systems. |
Applications
| Engine Control Unit (ECU) | Battery Management System (BMS) |
|---|---|
Use Scenario: Amplifying differential voltage across shunt resistor for real-time cylinder fuel injection timing correction. IC Role / Device Role / Timing Role: Precision current-sense amplifier providing rail-to-rail output to 12-bit ADC with <100 ns propagation delay. Use Value: Enables sub-millisecond closed-loop fuel trim adjustment under transient load conditions without signal clipping. |
Use Scenario: Monitoring cell voltage imbalance in 48-V mild-hybrid battery packs using high-impedance divider networks. IC Role / Device Role / Timing Role: Low-bias-current buffer isolating 1-MΩ dividers from ADC sampling capacitance. Use Value: Maintains <0.1% measurement accuracy across temperature, preventing false overvoltage shutdowns during cold cranking. |
| HEV/EV Inverter | Lane Departure Warning (LDW) |
Use Scenario: Conditioning isolated current feedback from gate driver ICs to detect IGBT short-circuit events. IC Role / Device Role / Timing Role: Fast-slew-rate amplifier driving comparator input with <2 µs response to 1-A fault current steps. Use Value: Reduces fault detection latency below 5 µs, enabling safe turn-off before destructive energy dissipation occurs. |
Use Scenario: Amplifying analog output from CMOS image sensor pixel arrays in forward-facing camera modules. IC Role / Device Role / Timing Role: Low-noise signal conditioner preserving SNR in low-light edge detection algorithms. Use Value: Delivers >68 dB CMRR at 10 kHz to reject switching noise from adjacent DC-DC converters in ADAS domain controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2371IDBVR | Industrial-grade variant (non-AEC-Q100); identical electrical specs but rated only to 125°C junction temperature, not ambient. | Not qualified for automotive safety-critical functions; unsuitable for ECU or BMS deployment where AEC-Q100 compliance is mandatory. | Select TLV2371QDRQ1 when functional safety documentation (FMEDA, FIT rate) and automotive qualification evidence are required. |
| TLC2271QDR | Lower bandwidth (2.2 MHz), higher supply current (1.1 mA), same rail-to-rail output but input limited to VDD – 1.35 V. | Cannot support high-side shunt sensing at full VDD; reduced speed limits use in fast current-loop control above 50 kHz. | Choose TLV2371QDRQ1 for designs requiring >2.5 MHz bandwidth, <600 µA quiescent current, or full-rail common-mode input range. |
Compared with TLV2371IDBVR and TLC2271QDR, the TLV2371QDRQ1 uniquely combines AEC-Q100 Grade 1 qualification, 3-MHz bandwidth, and true rail-to-rail input capability - making it the only option among the three for high-accuracy, high-speed current sensing in ASIL-B automotive subsystems.
Availability
TLV2371QDRQ1 is available at Aetrix Electronics and suitable for engine control units, battery management systems, and HEV/EV inverter designs requiring stable component supply with full automotive qualification traceability and long-term production support.
Supply support for TLV2371QDRQ1 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 deep expertise in automotive electronics and functional safety design.
The TLV237x-Q1 product line was engineered specifically for automotive signal conditioning applications demanding AEC-Q100 compliance, low power, rail-to-rail operation, and robust noise immunity in harsh electrical environments.
FAQ
What is the operating temperature range for TLV2371QDRQ1?
The TLV2371QDRQ1 is qualified for automotive Grade 1 operation with an ambient temperature range of –40°C to 125°C. This rating is verified per AEC-Q100 standards and applies to the full specified supply voltage range (2.7 V to 16 V). Junction temperature must remain ≤150°C under all operating conditions, and thermal design must account for package-specific RθJA of 228.5°C/W in the SOT-23-5 (DBV) configuration.
Does TLV2371QDRQ1 support rail-to-rail input at 16-V supply?
Yes, TLV2371QDRQ1 supports rail-to-rail common-mode input voltage from 0 V to VDD across its entire 2.7-V to 16-V supply range. At 16 V, the input stage accepts signals from ground up to 16 V without phase reversal or increased offset - a key enabler for high-side current sensing in 12-V battery systems and 48-V mild-hybrid architectures.
What is the maximum output current capability of TLV2371QDRQ1?
The TLV2371QDRQ1 can source or sink ±100 mA per the Absolute Maximum Ratings table, but its specified output voltage swing degrades above ±5 mA. For rail-to-rail operation with <100 mV error, the recommended load is ≤10 kΩ (±0.1 mA). Driving heavier loads requires external buffering or careful thermal derating due to the SOT-23-5 package's 228.5°C/W junction-to-ambient resistance.
Is TLV2371QDRQ1 pin-compatible with other devices in the TLV237x-Q1 family?
No - TLV2371QDRQ1 (SOT-23-5) has a different pin count and layout than TLV2372QDRQ1 (SOIC-8) and TLV2374QDRQ1 (SOIC-14/TSSOP-14). While functional specifications align across the family, mechanical compatibility requires redesign. The SOT-23-5 footprint is unique to the single-channel variant and cannot accommodate dual- or quad-channel replacements without PCB revision.
How does the input bias current of TLV2371QDRQ1 affect high-impedance sensor interfaces?
With a typical input bias current of 1 pA, TLV2371QDRQ1 introduces <1 µV error across a 1-MΩ sensor impedance - negligible for most automotive sensors. This enables direct connection to thermistors, RTDs, and piezoresistive pressure sensors without guard traces or bias compensation networks, simplifying layout and improving long-term stability in cabin air quality and tire pressure monitoring systems.
TLV2371QDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.1V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 750µA
- Current - Output / Channel:
- 16 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2371QDRQ1 FAQ
1.How can I place an order for TLV2371QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2371QDRQ1 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 TLV2371QDRQ1 reliable?
The price and inventory of TLV2371QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2371QDRQ1 is usually 5 days.
3.What payment methods are accepted for TLV2371QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2371QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2371QDRQ1?
TLV2371QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2371QDRQ1 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 TLV2371QDRQ1?
For technical support, including TLV2371QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2371QDRQ1 requirements.
6.How does Aetrix verify that TLV2371QDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV2371QDRQ1 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 TLV2371QDRQ1 meets industry standards.
7.What is the process for return or replacement of TLV2371QDRQ1?
All TLV2371QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2371QDRQ1, 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 TLV2371QDRQ1 part is unused and in its original packaging.
Return procedure for TLV2371QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2371QDRQ1 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM2902PWR
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LM2902DR
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LM358P
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