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Texas Instruments TLV2471CDBVR
- Part No.:
- TLV2471CDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2471CDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:13,605
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Product details
Overview
TLV2471CDBVR from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, high-output-drive applications. It delivers 2.8MHz gain-bandwidth, 600μA supply current per channel, ±10mA output drive at 180mV from rails, and 250μV typical input offset voltage across 2.7V–6V supply range - ideal for precision sensor signal conditioning in battery-powered medical devices.
For engineers reviewing the TLV2471CDBVR datasheet, TLV2471CDBVR pinout, TLV2471CDBVR application, or TLV2471CDBVR equivalent, this page provides verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative op-amps with documented functional trade-offs for low-voltage, rail-to-rail signal acquisition designs.
Technical Context
The TLV2471CDBVR employs a CMOS input stage enabling 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD), supporting direct interfacing with low-output-impedance sensors and ADC reference buffers. Its output stage delivers ±10mA into 180mV of either rail and ±35mA at 500mV, enabling direct driving of analog switches or low-impedance loads without external buffers.
Unlike micropower predecessors, it achieves 2.8MHz bandwidth at just 600μA/channel while maintaining 61° phase margin into 1nF capacitive load. Shutdown functionality is absent in TLV2471 (unlike TLV2470/2473/2475), eliminating quiescent current reduction but simplifying control logic in always-on signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 6V - supports single-cell Li-ion (3.0–3.6V) and dual-AA (3.0V) systems without level-shifting. |
| Gain-Bandwidth Product | 2.8MHz - enables stable unity-gain buffer operation up to ~2.5MHz with 10kΩ//100pF load. |
| Input Offset Voltage (typ) | 250μV - contributes ≤0.5% error in 50mV full-scale sensor outputs (e.g., thermopiles, strain gauges). |
| Output Drive Capability | ±10mA at 180mV from rail - drives 10-bit SAR ADC input RC networks (e.g., 1kΩ + 100pF) without settling error. |
| Input Bias Current (max) | 100pA at full temperature range - preserves accuracy in high-impedance pH electrode or photodiode transimpedance stages. |
| Supply Current (per channel) | 600μA - draws only 1.8mW at 3V, enabling >1-year battery life in 10s-of-μA average-current portable monitors. |
Pinout & Package
SOT-23-5 package (DBV): 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, moisture sensitivity level 1, rated for 0°C to +70°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Capable of sourcing/sinking ±10mA while staying within 180mV of supply rails - directly interfaces with ADC inputs or analog switches. |
| 2 - IN− | Inverting input | CMOS input with 2.5pA bias current - requires matched trace impedance to non-inverting input to minimize offset drift from current mismatch. |
| 3 - IN+ | Non-inverting input | Rail-to-rail common-mode range (0V to VDD) - accepts signals from resistive sensors referenced to ground or VDD/2 bias networks. |
| 4 - GND | Analog ground reference | Must be connected to low-impedance PCB ground plane; separates analog return from digital supply return to avoid noise coupling. |
| 5 - VDD | Positive supply | Accepts 2.7V–6V; internal ESD protection clamps to GND and VDD - requires local 100nF ceramic decoupling within 5mm. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3V supply in single-supply data acquisition - no negative rail or level-shifting needed for 0–3V sensor outputs. |
| 600μA supply current per channel | Reduces thermal drift and self-heating in densely packed PCB layouts - critical for multi-channel front-end modules with tight thermal budgets. |
| 2.8MHz gain-bandwidth at low power | Supports anti-aliasing filter design with cutoff frequencies up to 200kHz while maintaining phase linearity for precision measurements. |
| ±10mA output drive at 180mV from rail | Eliminates need for external output buffer in driving 10-bit ADC sample-and-hold inputs with 1kΩ series resistance and 100pF hold capacitance. |
| 250μV typical input offset voltage | Minimizes calibration burden in factory-trimmed medical sensors - reduces required zero-offset correction steps during production test. |
Applications
| Portable ECG Front-End | Low-Power Gas Sensor Interface |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Primary instrumentation amplifier gain stage with rail-to-rail output driving 12-bit SAR ADC sampling at 1kHz. Use Value: 2.5pA input bias current prevents electrode polarization errors; 250μV offset ensures <1% amplitude error on 50mV QRS complex peaks. |
Use Scenario: Conditioning output of metal-oxide semiconductor (MOS) gas sensors with high source impedance (>100MΩ) and low output swing (0–100mV). IC Role / Device Role / Timing Role: Transimpedance amplifier input stage followed by rail-to-rail buffer before 10-bit ADC digitization. Use Value: 100pA max input bias current avoids loading sensor output; 600μA supply current extends coin-cell battery life beyond 2 years. |
| Industrial Temperature Transmitter | Battery-Powered Pressure Transducer |
|
Use Scenario: Signal conditioning for 3-wire RTD bridges in smart field transmitters powered by 4–20mA loop or 3.3V backup battery. IC Role / Device Role / Timing Role: Precision difference amplifier with programmable gain, driving isolated sigma-delta ADC input. Use Value: 2.8MHz GBW supports fast step response (<5μs) to temperature transients; rail-to-rail I/O maximizes dynamic range over 0–100°C span. |
Use Scenario: Amplifying millivolt output from piezoresistive pressure sensors in handheld diagnostic tools. IC Role / Device Role / Timing Role: Low-noise, low-drift gain block feeding low-power ADC with integrated PGA and digital filtering. Use Value: ±10mA output drive settles 100pF ADC input in <1μs; 250μV offset contributes <0.2% FS error at 50mV full-scale pressure output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture; 0.1μV/°C offset drift vs. TLV2471CDBVR's 0.4μV/°C; 350kHz GBW vs. 2.8MHz; 17μA supply current. | Better DC precision for <1Hz sensor outputs (e.g., load cells), but insufficient bandwidth for >10kHz anti-aliasing or fast-settling ADC drivers. | Select OPA333AIDBVR when long-term offset stability dominates over speed; avoid when driving SAR ADCs requiring >1MHz small-signal bandwidth. |
| MCP6001T-E/OT | 1MHz GBW; 100μA supply current; 2mV max offset; rail-to-rail I/O; SOT-23-5 package compatible. | Lower cost and lower power, but 10× higher offset and 3.5× lower bandwidth limit use to basic buffering and slow industrial controls. | Select MCP6001T-E/OT for cost-sensitive, non-precision applications like LED current sensing or simple comparators; not suitable for medical-grade signal chains. |
Compared with TLV2471CDBVR, OPA333AIDBVR trades bandwidth and output drive for ultra-low drift, while MCP6001T-E/OT sacrifices precision and speed for minimal quiescent current - making TLV2471CDBVR the optimal balance for battery-powered, medium-speed precision amplification where both AC performance and DC accuracy matter.
Availability
TLV2471CDBVR is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, and battery-powered instrumentation requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for TLV2471CDBVR 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, embedded processing, and connectivity technologies, with decades of expertise in precision op-amp design and manufacturing.
The TLV247x family was engineered specifically for single-supply, rail-to-rail signal acquisition in space-constrained, battery-operated systems - emphasizing simultaneous low power, high output drive, and wide supply range without sacrificing AC performance.
FAQ
Does TLV2471CDBVR include a shutdown pin?
No, TLV2471CDBVR does not feature a shutdown function. Unlike TLV2470CDBVR (SOT-23-6 with SHDN) or TLV2473 (MSOP-10 with SHDN), the TLV2471CDBVR is a 5-pin variant without shutdown capability. Its quiescent current remains fixed at 600μA per channel under all operating conditions - simplifying power sequencing but requiring system-level sleep control if ultra-low standby current is needed. Always verify pin count and suffix against TI's official ordering matrix.
What is the maximum capacitive load TLV2471CDBVR can drive without instability?
TLV2471CDBVR maintains stable unity-gain operation with up to 100pF capacitive load when using recommended layout practices (short traces, local 100nF decoupling). For loads exceeding 10pF, TI recommends adding a 20Ω–100Ω isolation resistor (RNULL) in series with the output, as shown in Figure 42 of the datasheet. This preserves ≥61° phase margin and prevents ringing in ADC driver or filter applications - critical for accurate 12-bit+ conversions.
Can TLV2471CDBVR operate from a 2.5V supply?
No, TLV2471CDBVR has a minimum specified supply voltage of 2.7V per the Absolute Maximum Ratings and Recommended Operating Conditions tables. Operation below 2.7V is not characterized and may result in degraded parameters including reduced output swing, increased offset voltage, and unstable biasing. For 2.5V systems, consider alternatives like MCP6001 (2.0V min) or TLV9001 (1.8V min), both in SOT-23-5 and rail-to-rail compatible.
Is TLV2471CDBVR pin-compatible with other SOT-23-5 op-amps like LMV321 or TSX561?
No - TLV2471CDBVR uses TI's standard SOT-23-5 pinout (OUT, IN−, IN+, GND, VDD), which matches LMV321IDBVR and TSX561IST, but functional compatibility requires verification. LMV321 lacks rail-to-rail output swing (clips ~800mV from rails), and TSX561 has higher supply current (900μA) and lower GBW (900kHz). Electrical validation is required for drop-in replacement; never assume mechanical compatibility implies functional equivalence.
What is the typical input-referred voltage noise of TLV2471CDBVR at 1kHz?
The typical input-referred voltage noise of TLV2471CDBVR is 15nV/√Hz at 1kHz and 5V supply, as specified in the Operating Characteristics table (page 7, "ELECTRICAL CHARACTERISTICS (continued)"). This value is measured with AV = 1, RL = 10kΩ, and is consistent across the C-suffix temperature range (0°C to +70°C). It enables sub-10μV RMS noise contribution in 10kHz bandwidth applications - suitable for amplifying signals from thermocouples or low-output MEMS microphones.
TLV2471CDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV2471CDBVR FAQ
1.How can I place an order for TLV2471CDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471CDBVR 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 TLV2471CDBVR reliable?
The price and inventory of TLV2471CDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471CDBVR is usually 5 days.
3.What payment methods are accepted for TLV2471CDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471CDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471CDBVR?
TLV2471CDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471CDBVR 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 TLV2471CDBVR?
For technical support, including TLV2471CDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471CDBVR requirements.
6.How does Aetrix verify that TLV2471CDBVR is sourced from the original manufacturer or authorized distributors?
All TLV2471CDBVR 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 TLV2471CDBVR meets industry standards.
7.What is the process for return or replacement of TLV2471CDBVR?
All TLV2471CDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471CDBVR, 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 TLV2471CDBVR part is unused and in its original packaging.
Return procedure for TLV2471CDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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