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Texas Instruments TLV2471AIP
- Part No.:
- TLV2471AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2471AIP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,353
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Product details
Overview
TLV2471AIP 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, ±35mA output drive at 500mV 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 TLV2471AIP datasheet, TLV2471AIP pinout, TLV2471AIP application, or TLV2471AIP equivalent, this page provides verified circuit role, package mapping (PDIP-8), validated pin functions, real-world use cases, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The TLV2471AIP employs a CMOS input stage enabling 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD). Its output stage supports true rail-to-rail swing - delivering ±10mA within 180mV of each rail and ±35mA at 500mV off-rail - resolving key limitations of legacy micropower op-amps.
It operates across –40°C to +125°C with full specification at 3V and 5V, features no shutdown pin (unlike TLV2470/2473/2475), and maintains 61° phase margin into 1nF capacitive loads - enabling stable operation in data acquisition front-ends without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 6V - supports direct integration into 3.3V and 5V systems without level-shifting. |
| Gain-Bandwidth Product | 2.8MHz - enables stable unity-gain buffer or gain-of-10 amplification up to ~280kHz. |
| Input Bias Current | 2.5pA (typ) - minimizes error in high-impedance sensor interfaces (e.g., pH electrodes, photodiodes). |
| Output Drive Capability | ±35mA at 500mV from rail - drives 10kΩ loads to full scale while sourcing/sinking >3× typical micropower op-amp capability. |
| Input Offset Voltage | 250μV (typ) - ensures <0.01% gain error in 2.5V full-scale 12-bit ADC front-ends. |
| Supply Current per Channel | 600μA (typ at 5V) - enables >1000-hour operation on a 600mAh coin cell in intermittent-sampling systems. |
| Common-Mode Input Range | 0V to VDD - accepts signals directly from resistive sensors tied to ground or VDD without bias networks. |
Pinout & Package
TLV2471AIP is packaged in an 8-pin Plastic DIP (PDIP-8) with standard through-hole footprint and 0.3-inch body width. Pin 1 is marked by a beveled edge or molded dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pad - must remain unconnected; no routing or grounding required. |
| 2 (IN−) | Inverting input | Differential input node; high-impedance CMOS input accepting 0V–VDD common-mode range. |
| 3 (IN+) | Non-inverting input | Differential input node; identical specs to IN−; used for unity-gain buffers or non-inverting amps. |
| 4 (GND) | Analog ground reference | Primary return path for input bias currents and output load current; requires low-impedance connection to system AGND. |
| 5 (VDD) | Positive supply | Single-supply rail (2.7V–6V); powers internal CMOS circuitry and output stage. |
| 6 (OUT) | Amplifier output | Rail-to-rail output capable of sourcing/sinking ±35mA while staying within 500mV of either rail. |
| 7 (OUT) | Amplifier output (duplicate) | Same electrical node as Pin 6 - provided for mechanical robustness in PDIP layout; must be shorted externally. |
| 8 (NC) | No internal connection | Unused pad - must remain unconnected; no routing or grounding required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3V systems - e.g., 0–3.3V sensor outputs digitized by 3.3V ADCs without level-shifting. |
| 600μA/channel supply current | Reduces quiescent power to 1.98mW at 3.3V - critical for always-on wearable health monitors. |
| 2.8MHz gain-bandwidth | Supports anti-aliasing filtering at ≥100kHz sampling rates while maintaining phase linearity for precision measurements. |
| ±35mA output drive | Directly drives LED indicators, small solenoids, or 10kΩ instrumentation DAC loads without external buffers. |
| –40°C to +125°C operating range | Validated performance in automotive cabin modules and industrial motor control feedback loops without derating. |
Applications
| Portable ECG Front-End | Industrial Temperature Transmitter |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry-electrode ECG sensors with minimal noise and DC drift. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in first-stage instrumentation chain - configured as non-inverting gain-of-100 with 0.05Hz–150Hz bandwidth. Use Value: 2.5pA input bias current prevents electrode polarization errors; rail-to-rail output ensures full 3.3V ADC range utilization. | Use Scenario: Converting RTD or thermistor resistance changes into 4–20mA loop current with linearization and cold-junction compensation. IC Role / Device Role / Timing Role: Precision voltage buffer and summing amplifier in analog front-end - driving 250Ω sense resistor and compensating for lead-wire resistance. Use Value: 250μV input offset voltage limits temperature error to <0.1°C over 0–100°C range; ±35mA drive handles 20mA loop compliance. |
| Low-Power Gas Sensor Interface | Battery-Powered Data Logger |
Use Scenario: Conditioning output of electrochemical CO or NO₂ sensors requiring low-noise, low-drift amplification with minimal supply current. IC Role / Device Role / Timing Role: Transimpedance amplifier converting pA-level sensor current to voltage - biased at mid-supply with rail-to-rail output swing. Use Value: 600μA supply current extends 2-year battery life on CR2032; 28nV/√Hz input noise preserves ppm-level gas resolution. | Use Scenario: Buffering thermistor, humidity, and pressure sensor outputs before multiplexing into a low-power MCU ADC. IC Role / Device Role / Timing Role: Multi-channel signal conditioner - one TLV2471AIP per sensor, powered only during 100ms sampling bursts. Use Value: Fast 5μs turn-on time enables precise timing control; 2.8MHz GBW supports oversampling for noise reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2461CDR | Higher 6.4MHz GBW but 550μA supply current; ±90mA output drive; no rail-to-rail input (CMVR = 1.35V to 3.65V @ 5V). | Suitable for higher-speed active filters but requires input biasing network for ground-referenced sensors. | Select when >3MHz bandwidth is mandatory and input common-mode range can accommodate biasing. |
| OPA333AIDBVR | Zero-drift architecture; 0.1μV/°C offset drift; 17μA supply current; 350kHz GBW; rail-to-rail I/O. | Better DC precision for long-term monitoring, but insufficient bandwidth for >1kHz sensor signals. | Select for ultra-stable DC-coupled applications like strain gauge bridges where drift dominates error budget. |
Compared with TLV2471AIP, TLV2461CDR trades rail-to-rail input for higher speed and drive, while OPA333AIDBVR sacrifices bandwidth for near-zero drift - making TLV2471AIP the balanced choice for general-purpose, battery-efficient, rail-compatible signal conditioning.
Availability
TLV2471AIP is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20mA transmitters, and battery-powered environmental sensors requiring stable component supply across extended temperature ranges.
Supply support for TLV2471AIP 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 precision op-amps and low-power design.
The TLV247x family was engineered to overcome micropower op-amp limitations - delivering rail-to-rail operation, high output drive, and 2.8MHz bandwidth at just 600μA - specifically for portable instrumentation and sensor interface applications.
FAQ
What is the maximum capacitive load the TLV2471AIP can drive without oscillation?
The TLV2471AIP maintains 61° phase margin into 1nF loads with 10kΩ series resistance. For direct capacitive loads >10pF, TI recommends adding a 20Ω–100Ω isolation resistor (RNULL) in series with the output - as shown in Figure 42 of the SLOS232E datasheet - to preserve stability. This is critical for driving ADC input capacitors or long PCB traces.
Does the TLV2471AIP have a shutdown pin?
No, the TLV2471AIP does not include a shutdown pin. Unlike the TLV2470, TLV2473, or TLV2475 variants, the TLV2471AIP is a single-channel amplifier without enable/disable functionality. Power control must be implemented externally via supply switching or high-side FET gating of VDD.
What is the input common-mode voltage range for TLV2471AIP at 3.3V supply?
At 3.3V supply, the TLV2471AIP supports a true rail-to-rail input common-mode range of 0V to 3.3V - verified across –40°C to +125°C. This allows direct interfacing with ground-referenced sensors (e.g., thermistors) or VDD-referenced sources (e.g., resistive divider outputs) without external biasing networks.
Can TLV2471AIP operate from a single 2.7V supply?
Yes, TLV2471AIP is fully specified down to 2.7V supply - delivering 2.8MHz gain-bandwidth, 600μA supply current, and rail-to-rail input/output performance at this minimum voltage. Output swing remains within 180mV of each rail under 10mA load, enabling reliable operation in energy-harvesting or coin-cell-powered systems.
How does TLV2471AIP compare to TLV2470AIP in pin compatibility?
TLV2471AIP (PDIP-8, no shutdown) and TLV2470AIP (PDIP-8, with shutdown) share identical pinouts except Pin 1 and Pin 8: TLV2470AIP uses Pin 1 as SHDN and Pin 8 as NC, while TLV2471AIP uses both as NC. Thus, TLV2471AIP cannot replace TLV2470AIP in shutdown-enabled designs without PCB modification - but TLV2470AIP can substitute for TLV2471AIP if SHDN is tied to VDD.
TLV2471AIP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLV2471AIP FAQ
1.How can I place an order for TLV2471AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471AIP 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 TLV2471AIP reliable?
The price and inventory of TLV2471AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471AIP is usually 5 days.
3.What payment methods are accepted for TLV2471AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471AIP?
TLV2471AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471AIP 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 TLV2471AIP?
For technical support, including TLV2471AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471AIP requirements.
6.How does Aetrix verify that TLV2471AIP is sourced from the original manufacturer or authorized distributors?
All TLV2471AIP 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 TLV2471AIP meets industry standards.
7.What is the process for return or replacement of TLV2471AIP?
All TLV2471AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471AIP, 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 TLV2471AIP part is unused and in its original packaging.
Return procedure for TLV2471AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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