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Texas Instruments TLV2471QDRG4Q1
- Part No.:
- TLV2471QDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2471QDRG4Q1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,022
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Product details
Overview
TLV2471QDRG4Q1 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, ±35 mA output drive at 500 mV from rail, and 250 µV typical input offset voltage across −40°C to 125°C. It is used in battery-powered automotive sensor front-ends requiring high dynamic range and rail-swing capability.
For engineers reviewing the TLV2471QDRG4Q1 datasheet, TLV2471QDRG4Q1 pinout, TLV2471QDRG4Q1 application, or TLV2471QDRG4Q1 equivalent, key selection criteria include its AEC-Q100 qualification, rail-to-rail I/O performance at 2.7–6 V supply, 2.5 pA input bias current, thermal stability over automotive temperature range, and compatibility with capacitive-load compensation via RNULL.
Technical Context
The TLV2471QDRG4Q1 employs a CMOS input stage enabling ultra-low input bias current (2.5 pA) and rail-to-rail common-mode input range (0 V to VDD). Its output stage supports true rail-to-rail swing under 10 mA load (within 180 mV of rails) and high-current sourcing/sinking (±35 mA at 500 mV off rail), making it suitable for driving resistive and moderate capacitive loads without external buffers.
It features internal compensation for unity-gain stability, 1.5 V/µs slew rate, and phase margin ≥61° with 1 nF load. The device is fully specified at 3 V and 5 V supplies and maintains 88–92 dB CMRR and 60–90 dB PSRR across frequency and temperature - critical for precision analog front-ends in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - enables direct operation from 3.3 V or 5 V automotive rails without LDO regulation. |
| Gain-Bandwidth Product | 2.8 MHz - supports stable closed-loop gain up to ~28 at 100 kHz for anti-aliasing filter interfaces. |
| Input Bias Current | 2.5 pA (typ) - minimizes voltage error in high-impedance sensor bridges and photodiode transimpedance stages. |
| Output Drive Capability | ±35 mA at 500 mV from rail - drives 100 Ω loads directly or charges 1000 pF capacitive loads with controlled settling. |
| Input Offset Voltage | 250 µV (typ) - ensures ≤0.5 mV total error in 12-bit ADC front-ends with gain ≤2. |
| Quiescent Current | 600 µA per channel - allows integration into always-on vehicle subsystems with sub-1 mW power budget. |
| Operating Temperature | −40°C to 125°C - qualified per AEC-Q100 Grade 1 for engine bay and ADAS ECU deployment. |
Pinout & Package
SOP-8 (D package), 8-pin surface-mount plastic small-outline package with exposed thermal pad (PowerPAD™). Pin 1 marked by dot; pins 1–4 on left side, 5–8 on right side (top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pin; must be left floating or tied to GND per layout guidelines - no electrical function. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; requires shortest possible trace to minimize pickup and parasitic capacitance. |
| 3 (IN+) | Non-inverting input | Rail-to-rail common-mode range (0 V to VDD); accepts signals down to ground in single-supply configurations. |
| 4 (GND) | Analog ground reference | Primary return path for input bias currents and output load current; must connect to low-impedance 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 per TI layout recommendations. |
| 7 (OUT) | Amplifier output | Rail-to-rail capable; series RNULL ≥20 Ω recommended for >10 pF capacitive loads to maintain phase margin. |
| 8 (NC) | No internal connection | Unused pin; no internal bond wire - leave unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3 V systems - e.g., 0–3.3 V sensor output digitized by 12-bit SAR ADC without level-shifting. |
| AEC-Q100 qualified | Guarantees reliability for automotive applications including engine control, cabin sensors, and body electronics under harsh thermal cycling. |
| 2.5 pA input bias current | Reduces offset drift in high-Z thermistor or RTD measurement circuits where leakage would otherwise dominate error. |
| 600 µA quiescent current | Supports continuous monitoring in low-power wake-up domains - e.g., tire pressure sensor interface with <1 µA system sleep current. |
| ±35 mA output drive | Eliminates need for external buffer when driving LED indicators, small solenoids, or ADC reference buffers in compact modules. |
Applications
| Automotive Cabin Temperature Sensor Interface | Portable Medical Pulse Oximeter Front-End |
|---|---|
Use Scenario: Amplifying low-level voltage from NTC thermistor in HVAC control module, operating continuously at 125°C ambient. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail output feeding 12-bit ADC; provides offset trimming via external resistor network. Use Value: 250 µV VIO and 0.4 µV/°C drift ensure <0.1°C measurement error over full automotive temperature range. | Use Scenario: Conditioning photodiode current from red/IR LEDs in wearable pulse oximeter, powered by coin cell. IC Role / Device Role / Timing Role: Transimpedance amplifier with 2.5 pA IIB minimizing dark-current-induced offset in low-light conditions. Use Value: 600 µA supply current enables >7-day battery life while maintaining 2.8 MHz bandwidth for pulse waveform fidelity. |
| Industrial Battery Management Cell Monitor | ADAS Radar Signal Conditioning |
Use Scenario: Measuring cell voltage in 12S Li-ion pack with isolated microcontroller interface, operating at −40°C cold start. IC Role / Device Role / Timing Role: High-accuracy buffer between precision voltage divider and isolated sigma-delta ADC; rejects common-mode noise on long traces. Use Value: 84 dB CMRR at 5 V and rail-to-rail input allow accurate 1 mV resolution on 4.2 V cells despite 100 mV common-mode ripple. | Use Scenario: Amplifying IF signal from 77 GHz radar receiver chain before digitization in parking assist ECU. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain block with 15 nV/√Hz input noise and 0.05% THD+N at 1 kHz. Use Value: 1.5 V/µs slew rate and 2.8 MHz GBW preserve pulse edge integrity for time-of-flight calculations within ±1 cm accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2471AQDRQ1 | Same package and pinout; tighter 1600 µV max VIO (vs. 2200 µV for TLV2471QDRG4Q1) and improved 0.4 µV/°C αVIO. | Preferred for high-precision temperature sensing where initial offset and drift dominate error budget. | Select TLV2471AQDRQ1 when VIO spec compliance is mandatory; TLV2471QDRG4Q1 remains valid for cost-sensitive AEC-Q100 designs meeting 2200 µV limit. |
| LMV931QDBVRQ1 | Single-channel, rail-to-rail I/O, but lower 1.5 MHz GBW, higher 1200 µA IDD, and 100 µV VIO (typ); same DBC package. | Better offset but reduced bandwidth and higher power - suitable for DC/low-frequency sensor buffering only. | Choose LMV931QDBVRQ1 only if offset is primary concern and bandwidth <1 MHz suffices; TLV2471QDRG4Q1 offers superior ac performance per µA. |
Compared with TLV2471AQDRQ1, TLV2471QDRG4Q1 trades tighter offset specs for broader availability and identical footprint; versus LMV931QDBVRQ1, it delivers 87% higher GBW per µA and supports wider signal bandwidths without sacrificing rail-to-rail operation.
Availability
TLV2471QDRG4Q1 is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical devices, and industrial battery monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2471QDRG4Q1 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 AEC-Q100 process validation.
The TLV247x product line was engineered specifically for low-voltage, rail-to-rail signal conditioning in automotive and portable instrumentation - balancing micropower consumption, output drive, and precision over extreme temperatures.
FAQ
What is the maximum capacitive load the TLV2471QDRG4Q1 can drive without oscillation?
The TLV2471QDRG4Q1 maintains stability with ≤10 pF capacitive load directly at the output. For loads >10 pF, TI recommends adding a series resistor (RNULL ≥20 Ω) between the OUT pin and the capacitive node. This isolates the amplifier's output impedance from the load capacitance, preserving ≥61° phase margin per Figure 18–19 in the datasheet. Layout best practices - including short traces and proper grounding - remain essential for robust high-frequency performance of the TLV2471QDRG4Q1.
Does the TLV2471QDRG4Q1 support true rail-to-rail input common-mode range?
Yes, the TLV2471QDRG4Q1 supports a true rail-to-rail input common-mode voltage range from 0 V to VDD, verified across −40°C to 125°C. This is enabled by its complementary CMOS input pair, allowing direct interfacing with sensors referenced to ground or VDD in single-supply systems. Input bias current remains stable (<300 pA) across this full range, ensuring minimal error in high-impedance configurations - a key specification confirmed in the "Electrical Characteristics" tables for both 3 V and 5 V operation of the TLV2471QDRG4Q1.
How does the TLV2471QDRG4Q1 handle power supply rejection at high frequencies?
The TLV2471QDRG4Q1 achieves 60–90 dB PSRR from DC to 100 kHz (Figure 11), dropping to ~40 dB at 1 MHz. Its dual-supply rejection is asymmetric: PSRR+ (positive rail) exceeds PSRR− (negative rail) by ~5–10 dB above 10 kHz due to internal topology. For noise-sensitive applications, TI recommends using separate 0.1 µF ceramic + 6.8 µF tantalum decoupling on VDD, placed within 0.1 inch of the TLV2471QDRG4Q1 pins. This maintains effective PSRR performance in real-world automotive PCB layouts.
Is the thermal pad on the TLV2471QDRG4Q1 D-package electrically connected?
No, the exposed thermal pad on the TLV2471QDRG4Q1 SOP-8 (D) package is electrically isolated from all internal terminals, as confirmed in the "General PowerPAD™ Design Considerations" section (page 16) of the datasheet. It serves solely for thermal conduction and must be soldered to a dedicated copper pour connected to PCB ground or a thermal plane via ≥5 vias (13 mil diameter). Electrical isolation prevents ground loops or unintended coupling - a critical design point for noise-sensitive analog signal paths using the TLV2471QDRG4Q1.
What is the minimum supply voltage for guaranteed operation of the TLV2471QDRG4Q1?
The TLV2471QDRG4Q1 is fully specified and guaranteed to operate from 2.7 V to 6 V across −40°C to 125°C, per the "Recommended Operating Conditions" table (page 3). Below 2.7 V, parameters such as gain-bandwidth (2.8 MHz), output drive (±35 mA), and input offset voltage (250 µV typ) are not characterized or warranted. At 2.7 V, the amplifier maintains rail-to-rail input/output swing and 600 µA supply current - enabling reliable use in brown-out conditions common in automotive 12 V systems with transient dips, as validated for the TLV2471QDRG4Q1 in AEC-Q100 stress testing.
TLV2471QDRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
TLV2471QDRG4Q1 FAQ
1.How can I place an order for TLV2471QDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471QDRG4Q1 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 TLV2471QDRG4Q1 reliable?
The price and inventory of TLV2471QDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471QDRG4Q1 is usually 5 days.
3.What payment methods are accepted for TLV2471QDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471QDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471QDRG4Q1?
TLV2471QDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471QDRG4Q1 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 TLV2471QDRG4Q1?
For technical support, including TLV2471QDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471QDRG4Q1 requirements.
6.How does Aetrix verify that TLV2471QDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All TLV2471QDRG4Q1 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 TLV2471QDRG4Q1 meets industry standards.
7.What is the process for return or replacement of TLV2471QDRG4Q1?
All TLV2471QDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471QDRG4Q1, 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 TLV2471QDRG4Q1 part is unused and in its original packaging.
Return procedure for TLV2471QDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2471QDRG4Q1 Tags
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