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Texas Instruments TLV2471AQDRG4Q1
- Part No.:
- TLV2471AQDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2471AQDRG4Q1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,889
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Product details
Overview
TLV2471AQDRG4Q1 from Texas Instruments is an automotive-grade, single-channel CMOS rail-to-rail input/output operational amplifier optimized for low-voltage, low-power sensor signal conditioning. It delivers 2.8 MHz gain-bandwidth, 600 µA supply current per channel, 250 µV typical input offset voltage, and ±35 mA output drive at 500 mV from rail - enabling high-accuracy analog front-ends in battery-powered automotive ECUs and portable medical devices.
For engineers reviewing the TLV2471AQDRG4Q1 datasheet, TLV2471AQDRG4Q1 pinout, TLV2471AQDRG4Q1 application, or TLV2471AQDRG4Q1 equivalent, key selection criteria include its −40°C to 125°C automotive temperature rating, rail-to-rail I/O swing down to 180 mV from rails under 10 mA load, 2.5 pA input bias current, and SOP-8 (D) package compatibility with space-constrained PCB layouts.
Technical Context
The TLV2471AQDRG4Q1 employs a CMOS input stage delivering ultra-low input bias current (2.5 pA typ) and rail-to-rail common-mode input range (0 V to VDD). Its output stage supports true rail-to-rail swing with ±10 mA drive capability at 180 mV from supply rails and ±35 mA at 500 mV from rails - resolving legacy micropower op-amp limitations in driving resistive and light capacitive loads.
It operates across 2.7 V to 6 V single-supply or ±1.35 V to ±3 V split-supply configurations, with full specification over the automotive temperature range. The device features 88–92 dB large-signal differential voltage amplification (AVD) and 58–84 dB common-mode rejection ratio (CMRR), ensuring robust performance in noisy vehicle electrical environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports direct integration into 3.3 V and 5 V automotive subsystems without level-shifting. |
| Gain-Bandwidth Product | 2.8 MHz - enables stable closed-loop operation up to ~200 kHz with unity-gain stability into 10 kΩ//150 pF loads. |
| Input Bias Current | 2.5 pA (typ) - minimizes DC error in high-impedance sensor interfaces (e.g., thermistors, pH electrodes). |
| Output Drive Capability | ±35 mA at 500 mV from rail - drives 100 Ω loads directly, eliminating external buffers in actuator driver stages. |
| Input Offset Voltage | 250 µV (typ) - ensures ≤0.5 mV total offset error in 10-bit ADC front-ends with 3.3 V reference. |
| Slew Rate | 1.5 V/µs (typ, VDD = 5 V) - supports clean 100 kHz sine-wave generation with <0.1% THD+N. |
| Quiescent Current | 600 µA per channel - enables always-on sensor monitoring in low-power automotive modules with <2 mW dissipation. |
Pinout & Package
The TLV2471AQDRG4Q1 is housed in an 8-pin SOIC (D) package with exposed thermal pad (PowerPAD™), measuring 4.9 mm × 6.0 mm × 1.75 mm. This thermally enhanced package enables reliable operation at 125°C ambient when mounted on ≥2 cm² copper area with ≥5 thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pin; must be left floating or tied to GND for mechanical stability - no electrical function. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; accepts signals from 0 V to VDD; sensitive to PCB trace capacitance. |
| 3 (IN+) | Non-inverting input | Rail-to-rail common-mode range (0 V to VDD); used for precision reference buffering or sensor excitation. |
| 4 (GND) | Analog ground | Primary return path for input bias currents and output load current; requires low-inductance connection to system ground plane. |
| 5 (NC) | No internal connection | Unused pin; electrically isolated - no routing or soldering required. |
| 6 (VDD) | Positive supply | Accepts 2.7–6 V; requires local 0.1 µF ceramic + 6.8 µF tantalum decoupling within 2 mm of pin. |
| 7 (OUT) | Amplifier output | Capable of sourcing/sinking ±35 mA; rail-to-rail swing enables full dynamic range utilization in 3.3 V systems. |
| 8 (NC) | No internal connection | Thermal pad connection point - must be soldered to PCB copper pour for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full 0–3.3 V signal swing in single-supply 3.3 V systems, maximizing ADC resolution without level-shifting circuitry. |
| Automotive qualification (AEC-Q100 Grade 1) | Guarantees operation from −40°C to +125°C with tested reliability for engine control, body electronics, and ADAS sensor nodes. |
| 2.5 pA input bias current | Reduces voltage error to <25 µV in 10 MΩ source impedance applications - critical for high-precision thermistor and strain gauge interfaces. |
| ESD protection >2000 V (HBM) | Withstands handling and board-level ESD events in automotive manufacturing and service environments without external protection diodes. |
| Low 600 µA quiescent current | Supports continuous sensor monitoring in always-on vehicle subsystems while maintaining battery life over multi-year deployments. |
Applications
| Engine Coolant Temperature Sensing | Automotive Cabin Air Quality Monitor |
|---|---|
Use Scenario: Amplifies resistance changes from NTC thermistor in engine coolant loop, digitized by 12-bit microcontroller ADC. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with 10× gain, configured for ratiometric measurement against 3.3 V reference. Use Value: 250 µV offset and 2.5 pA bias current limit measurement error to ±0.3°C over −40°C to 125°C, meeting OEM thermal accuracy requirements. | Use Scenario: Condition signals from electrochemical CO and NO₂ sensors in HVAC air intake module. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier converting pA-level sensor current to voltage for 10-bit SAR ADC sampling. Use Value: 15 nV/√Hz input noise and rail-to-rail output swing preserve signal integrity at sub-ppm gas concentration detection thresholds. |
| Portable ECG Front-End Stage | Brake-by-Wire Pressure Transducer Interface |
Use Scenario: First-stage amplification of 0.5–2 mV biopotential signals from dry electrodes, filtered before 24-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Instrumentation-grade buffer with matched RC filtering on IN+ to suppress 50/60 Hz interference. Use Value: 84 dB CMRR at 60 Hz and 2.8 MHz bandwidth enable clean acquisition of microvolt-level cardiac waveforms without notch filters. | Use Scenario: Signal conditioning for piezoresistive pressure sensor in hydraulic brake master cylinder. IC Role / Device Role / Timing Role: Dual-stage amplifier: first stage for bridge excitation buffering, second stage for differential output amplification. Use Value: ±35 mA output drive directly sources 100 Ω bridge excitation, eliminating discrete FETs and reducing BOM count in safety-critical braking systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2471QDRQ1 | Same silicon, standard automotive grade (no 'A' suffix); 1600 µV max input offset vs. 2000 µV for TLV2471AQDRG4Q1. | Valid for non-critical sensor interfaces where 1.6 mV offset is acceptable; not qualified to AEC-Q100 Grade 1. | Select when cost sensitivity outweighs need for guaranteed 250 µV typ offset and full Grade 1 qualification. |
| OPA333AIDBVR | Zero-drift architecture; 0.1 µV max offset drift, 17 µV max offset; higher 17 µA supply current; 350 kHz GBW. | Better DC precision for ultra-low-drift applications (e.g., weigh scales), but insufficient bandwidth for fast transient sensing. | Choose for µV-level DC stability where bandwidth <400 kHz suffices; avoid for dynamic sensor signals above 10 kHz. |
Compared with TLV2471QDRQ1, TLV2471AQDRG4Q1 guarantees tighter offset specs and full AEC-Q100 Grade 1 compliance, while OPA333AIDBVR trades bandwidth and power for superior DC accuracy - making TLV2471AQDRG4Q1 optimal for cost-sensitive, wideband automotive analog front-ends requiring proven reliability.
Availability
TLV2471AQDRG4Q1 is available at Aetrix Electronics and suitable for automotive engine control units, cabin air quality monitors, and portable medical ECG devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2471AQDRG4Q1 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 IC design expertise and ISO/TS 16949-certified manufacturing.
The TLV247x product line was engineered specifically for automotive and portable industrial signal conditioning - balancing micropower efficiency, rail-to-rail performance, and AEC-Q100 reliability in compact surface-mount packages.
FAQ
What is the operating temperature range for TLV2471AQDRG4Q1?
The TLV2471AQDRG4Q1 is qualified for automotive applications with a guaranteed operating free-air temperature range of −40°C to +125°C. This rating is validated per AEC-Q100 Grade 1 standards and applies across all electrical specifications including input offset voltage, supply current, and output drive capability - ensuring consistent performance in under-hood and cabin-mounted electronic control units.
Does TLV2471AQDRG4Q1 support true rail-to-rail input and output operation?
Yes, TLV2471AQDRG4Q1 supports true rail-to-rail input common-mode range (0 V to VDD) and rail-to-rail output swing. At 10 mA load, it drives within 180 mV of each rail; at 35 mA, within 500 mV. This enables full utilization of 3.3 V or 5 V supply headroom in single-supply configurations - critical for maximizing dynamic range in ADC-coupled sensor interfaces without external level-shifting circuitry.
What package type is used for TLV2471AQDRG4Q1 and how does it impact thermal performance?
TLV2471AQDRG4Q1 uses an 8-pin SOIC (D) package with PowerPAD™ thermal enhancement. The exposed thermal pad on the underside provides direct die-to-PCB conduction, reducing θJA to 176°C/W. When mounted on ≥2 cm² copper with ≥5 thermal vias, it sustains 710 mW power dissipation at 25°C ambient - enabling reliable 125°C operation in compact automotive modules without heatsinks.
How does the input bias current of TLV2471AQDRG4Q1 affect high-impedance sensor interfacing?
With a typical input bias current of 2.5 pA, TLV2471AQDRG4Q1 introduces <25 µV of voltage error when interfacing with 10 MΩ source impedances - making it suitable for precision NTC thermistors, pH electrodes, and photodiode transimpedance stages. This ultra-low bias current preserves signal fidelity in battery-powered portable medical and environmental sensors where leakage-induced offsets degrade measurement accuracy.
Can TLV2471AQDRG4Q1 drive capacitive loads directly, and what layout guidance applies?
TLV2471AQDRG4Q1 can drive ≤10 pF capacitive loads stably without external compensation. For larger loads (e.g., ADC input capacitance or cable termination), TI recommends adding a 20–100 Ω series resistor (RNULL) between OUT and the load to maintain phase margin >60° - as verified in Figure 18–19 of the datasheet. Layout best practices include short IN− traces, local 0.1 µF ceramic decoupling within 2 mm of VDD/GND, and removal of ground plane under input nodes to minimize stray capacitance.
TLV2471AQDRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 2.8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2.5 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2471AQDRG4Q1 FAQ
1.How can I place an order for TLV2471AQDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471AQDRG4Q1 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 TLV2471AQDRG4Q1 reliable?
The price and inventory of TLV2471AQDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471AQDRG4Q1 is usually 5 days.
3.What payment methods are accepted for TLV2471AQDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471AQDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471AQDRG4Q1?
TLV2471AQDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471AQDRG4Q1 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 TLV2471AQDRG4Q1?
For technical support, including TLV2471AQDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471AQDRG4Q1 requirements.
6.How does Aetrix verify that TLV2471AQDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All TLV2471AQDRG4Q1 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 TLV2471AQDRG4Q1 meets industry standards.
7.What is the process for return or replacement of TLV2471AQDRG4Q1?
All TLV2471AQDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471AQDRG4Q1, 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 TLV2471AQDRG4Q1 part is unused and in its original packaging.
Return procedure for TLV2471AQDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2471AQDRG4Q1 Tags
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LM358DT
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Texas Instruments
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