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Texas Instruments TLV2471QDRQ1
- Part No.:
- TLV2471QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2471QDRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,224
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Product details
Overview
TLV2471QDRQ1 from Texas Instruments is an automotive-qualified, single-channel CMOS rail-to-rail input/output operational amplifier optimized for low-voltage sensor signal conditioning. It delivers 2.8 MHz gain-bandwidth, 600 µA supply current per channel, ±10 mA output drive at 180 mV from rail, 250 µV typical input offset voltage, and operates from 2.7 V to 6 V across −40°C to 125°C - enabling high-precision analog front-ends in battery-powered automotive sensors and medical monitors.
For engineers reviewing the TLV2471QDRQ1 datasheet, TLV2471QDRQ1 pinout, TLV2471QDRQ1 application, or TLV2471QDRQ1 equivalent, key selection criteria include rail-to-rail I/O swing under 3 V supply, 2.5 pA input bias current for high-impedance source interfacing, automotive temperature qualification, low-noise (15 nV/√Hz @ 1 kHz), and SOIC-8 package thermal performance with θJA = 176°C/W.
Technical Context
The TLV2471QDRQ1 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 under load: ±10 mA at 180 mV from each rail and ±35 mA at 500 mV from rail - resolving a key limitation of legacy micropower op amps.
It achieves 2.8 MHz gain-bandwidth with 1.5 V/µs slew rate while maintaining stability into capacitive loads ≥10 pF when using series RNULL (≥20 Ω). The device is fully characterized at 3 V and 5 V across the automotive temperature range, with PSRR (70 dB) and CMRR (62 dB typ @ 5 V) supporting noisy supply environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - enables direct operation from single-cell Li-ion (3.0–3.7 V) or dual-cell alkaline (3.0 V min) without LDO. |
| Gain-Bandwidth Product | 2.8 MHz - supports closed-loop bandwidth >1 MHz in unity-gain buffer or gain-of-10 configurations for fast sensor response. |
| Input Bias Current | 2.5 pA (typ) - minimizes voltage error in high-Z pH, thermopile, or piezoelectric sensor interfaces. |
| Output Drive Capability | ±10 mA at 180 mV from rail - sustains rail-to-rail swing into 1 kΩ loads at 3 V supply for driving ADC reference buffers or active filters. |
| Input Offset Voltage | 250 µV (typ) - ensures <0.5% gain error in 12-bit systems with 1 V full-scale input range. |
| Quiescent Current | 600 µA per channel - allows integration into always-on automotive cabin sensors with sub-1 mW power budget. |
| Operating Temperature | −40°C to 125°C - qualified per AEC-Q100 Grade 1 for engine bay, HVAC, and ADAS sensor modules. |
Pinout & Package
TLV2471QDRQ1 is housed in an 8-pin SOIC (D) package with exposed pad (PowerPAD™), offering θJA = 176°C/W and θJC = 38.3°C/W for enhanced thermal management in automotive PCBs.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pin; must be left floating or tied to GND per layout best practice to reduce noise coupling. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; requires short trace routing and guard ring to minimize leakage-induced offset drift. |
| 3 (IN+) | Non-inverting input | Rail-to-rail common-mode range (0 V to VDD) enables direct interface with resistive sensor bridges biased at mid-supply. |
| 4 (GND) | Analog ground reference | Primary return path for input bias currents and output load; must connect to clean analog ground plane with low-inductance path. |
| 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 0.1 inch of pin. |
| 7 (OUT) | Amplifier output | Capable of sourcing/sinking ±35 mA at 500 mV from rail; add 20 Ω series resistor for stable driving of >10 pF capacitive loads. |
| 8 (NC) | No internal connection | Unused pin; no internal bond wire - leave unconnected per TI D package pinout. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to 125°C) - certified for safety-critical body electronics and powertrain subsystems. |
| Rail-to-rail I/O | Full 0 V to VDD input range and output swing to within 180 mV of rails at 10 mA - maximizes dynamic range in 3 V systems. |
| Ultra-low input bias current | 2.5 pA typical - preserves signal integrity in high-impedance photodiode, ion-selective electrode, or MEMS sensor amplifiers. |
| Low-noise performance | 15 nV/√Hz input voltage noise @ 1 kHz - critical for preserving SNR in precision weigh scales and portable ECG front-ends. |
| ESD robustness | >2000 V HBM, >200 V MM - withstands handling and assembly stress in automotive manufacturing lines. |
Applications
| Automotive Cabin Temperature Sensor | Portable Blood Glucose Meter |
|---|---|
|
Use Scenario: Amplifying low-level output (10–100 µV/°C) from NTC thermistor networks in HVAC control modules. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 100, configured as ratiometric sensor interface referenced to MCU's 3.3 V ADC reference. Use Value: 250 µV offset ensures <0.25°C absolute error over full automotive temperature range; rail-to-rail output drives 12-bit SAR ADC directly. |
Use Scenario: Conditioning electrochemical current from glucose oxidase test strips (1–10 nA full scale). IC Role / Device Role / Timing Role: Transimpedance amplifier with 1 GΩ feedback resistor, operating at 3 V from coin cell. Use Value: 2.5 pA input bias current limits measurement error to <1% of full scale; 600 µA quiescent current extends battery life to >1000 tests. |
| Industrial Pressure Transmitter | Smart Smoke Detector Analog Front-End |
|
Use Scenario: Signal conditioning for Wheatstone bridge output (2–5 mV/V) in MEMS pressure sensors used in brake line monitoring. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end stage with matched gain-setting resistors and 2.8 MHz bandwidth for step-response fidelity. Use Value: 2.8 MHz GBW supports <10 µs settling time for 12-bit accuracy; 125°C rating ensures reliability in under-hood environments. |
Use Scenario: Amplifying photocurrent from IR LED/photodiode pair detecting smoke particles in residential alarms. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier with programmable gain, operating in intermittent wake-up mode. Use Value: 600 µA supply current enables 5-year battery life on CR123A; rail-to-rail output interfaces directly with comparator threshold circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2461QDRQ1 | Higher 6.4 MHz GBW and ±90 mA output drive, but 550 µA supply current and 150 µV max VIO. | Better for wideband active filters or higher-current DAC buffers; less optimal for ultra-low-power always-on sensing. | Select TLV2461QDRQ1 when bandwidth >5 MHz or output current >±20 mA is required; TLV2471QDRQ1 remains superior for sub-1 mW power budgets. |
| OPA333AIDBVR | Zero-drift architecture with 0.1 µV/°C drift and 10 µV max VIO, but 17 µA supply current and 350 kHz GBW. | Ideal for DC-precision applications like strain gauge bridges; unsuitable for AC-coupled sensor signals above 100 kHz. | Choose OPA333AIDBVR only for ultra-stable DC offsets; TLV2471QDRQ1 provides better AC performance and lower power for dynamic sensor signals. |
Compared with TLV2461QDRQ1 and OPA333AIDBVR, TLV2471QDRQ1 uniquely balances 2.8 MHz bandwidth, 600 µA quiescent current, rail-to-rail I/O, and AEC-Q100 qualification - making it the optimal choice for cost-sensitive, power-constrained automotive and portable medical signal chains requiring both speed and precision.
Availability
TLV2471QDRQ1 is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical diagnostics, and industrial pressure transmitters requiring stable component supply with guaranteed long-term availability and automotive-grade traceability.
Supply support for TLV2471QDRQ1 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 high-reliability automotive and industrial IC design.
The TLV247x family was engineered to address the gap between micropower op amps and high-speed amplifiers - delivering rail-to-rail performance at sub-milliwatt power for next-generation automotive sensor nodes and portable health devices.
FAQ
What is the maximum capacitive load the TLV2471QDRQ1 can drive without oscillation?
The TLV2471QDRQ1 remains stable with capacitive loads up to 10 pF when directly connected. For loads exceeding 10 pF - such as ADC input capacitance or long PCB traces - TI recommends adding a 20 Ω to 100 Ω series resistor (RNULL) between the TLV2471QDRQ1 output and the load to restore phase margin. This is validated in Figure 18–19 of the SGLS180B datasheet across −40°C to 125°C.
Does the TLV2471QDRQ1 support true rail-to-rail output swing at 3 V supply with 10 mA load?
Yes. The TLV2471QDRQ1 delivers rail-to-rail output swing to within 180 mV of each supply rail at ±10 mA load under 3 V supply, as specified in the Electrical Characteristics table (VOH = 2.6 V min, VOL = 0.2 V max at IO = ±10 mA, VDD = 3 V, TA = 25°C). This enables full 0–3 V dynamic range utilization in 12-bit systems.
Is the TLV2471QDRQ1 pin-compatible with other members of the TLV247x family?
No. The TLV2471QDRQ1 (single-channel, SOIC-8) has a unique pinout: Pins 1, 5, and 8 are NC, while TLV2472QDRQ1 (dual) and TLV2474QDRQ1 (quad) use all pins for functional channels. Direct replacement requires PCB redesign; however, the same SOIC-8 footprint and thermal pad layout allow mechanical compatibility in space-constrained automotive modules.
What is the input common-mode voltage range for the TLV2471QDRQ1 at 5 V supply?
At 5 V supply, the TLV2471QDRQ1 supports a rail-to-rail input common-mode voltage range from 0 V to 5 V (GND to VDD), as confirmed in the Recommended Operating Conditions table. This allows direct interfacing with sensors biased at any point within the supply range - including mid-supply references for bridge circuits - without level-shifting circuitry.
How does the TLV2471QDRQ1 handle ESD in automotive assembly environments?
The TLV2471QDRQ1 exceeds 2000 V HBM (MIL-STD-883 Method 3015) and 200 V machine model ESD protection, verified per AEC-Q100 stress testing. This robustness ensures survival during automated pick-and-place, reflow soldering, and post-assembly handling in Tier 1 automotive manufacturing lines without additional external protection diodes.
TLV2471QDRQ1 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:
- 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
TLV2471QDRQ1 FAQ
1.How can I place an order for TLV2471QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471QDRQ1 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 TLV2471QDRQ1 reliable?
The price and inventory of TLV2471QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471QDRQ1 is usually 5 days.
3.What payment methods are accepted for TLV2471QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471QDRQ1?
TLV2471QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471QDRQ1 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 TLV2471QDRQ1?
For technical support, including TLV2471QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471QDRQ1 requirements.
6.How does Aetrix verify that TLV2471QDRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV2471QDRQ1 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 TLV2471QDRQ1 meets industry standards.
7.What is the process for return or replacement of TLV2471QDRQ1?
All TLV2471QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471QDRQ1, 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 TLV2471QDRQ1 part is unused and in its original packaging.
Return procedure for TLV2471QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2471QDRQ1 Tags
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LM358DT
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LM358DR
Texas Instruments
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MCP6006T-E/OT
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