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Texas Instruments TLV2471CDG4
- Part No.:
- TLV2471CDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2471CDG4.pdf
- Description:
- IC OPAMP GP 2.8MHZ RRO 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:375
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Product details
Overview
TLV2471CDG4 from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-power, high-output-drive applications. It delivers 2.8MHz gain-bandwidth, 600μA/channel supply current, ±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 portable medical devices.
For engineers reviewing the TLV2471CDG4 datasheet, TLV2471CDG4 pinout, TLV2471CDG4 application, or TLV2471CDG4 equivalent, key selection criteria include rail-to-rail I/O swing, ultra-low quiescent current, shutdown capability absence (unlike TLV2470/3/5), SOT23-5 package constraints, and 2.8MHz bandwidth vs. load-driven settling time requirements.
Technical Context
The TLV2471CDG4 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 with ±10mA drive within 180mV of rails and ±35mA at 500mV offset - resolving classic micropower op-amp output drive limitations.
It operates across 2.7V–6V supply and –40°C to +125°C temperature range, with 1.5V/μs slew rate (VDD = 5V), 92dB CMRR, and 77dB PSRR. No internal shutdown control is present - distinguishing it from TLV2470/3/5 variants and eliminating shutdown-related timing or isolation concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 2.8MHz - enables stable unity-gain buffer or closed-loop amplification up to ~200kHz with 10x phase margin. |
| Supply Current per Channel | 600μA - allows continuous operation in battery-powered systems with multi-year runtime on coin cells. |
| Rail-to-Rail I/O | Input: 0V to VDD; Output: within 180mV of rails at ±10mA - maximizes dynamic range in 3.3V or lower single-supply systems. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 100Ω loads directly without external buffers in data acquisition front-ends. |
| Input Offset Voltage | 250μV (typ) - supports <12-bit accuracy in 3.3V ADC interfaces without trimming. |
| Input Bias Current | 2.5pA - minimizes voltage error in high-impedance sensor interfaces (e.g., pH electrodes, photodiode transimpedance). |
Pinout & Package
SOT23-5 package: 5-pin ultra-small outline transistor package with exposed pad not present; compatible with standard pick-and-place and reflow processes; footprint matches industry-standard SOT-23-5 land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; capable of ±35mA sourcing/sinking at 500mV from rail. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; 2.5pA bias current enables high-Z sensor interfacing. |
| 3 (IN+) | Non-inverting input | Common-mode range extends from 0V to VDD - supports single-supply operation with ground-referenced inputs. |
| 4 (GND) | Analog ground reference | Primary return path for input bias currents and output load current; requires low-impedance PCB connection. |
| 5 (VDD) | Positive supply | Operates from 2.7V to 6V; no internal regulation - supply ripple directly modulates output offset via PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3.3V or 5V supply in single-ended configurations - eliminates level-shifting circuitry. |
| 600μA/channel supply current | Reduces thermal load in dense PCB layouts and extends battery life in portable instrumentation. |
| 2.5pA input bias current | Permits direct connection to >100MΩ source impedances without significant DC error accumulation. |
| ±35mA output drive at 500mV from rail | Drives analog multiplexers, ADC reference buffers, or LED bias circuits without external drivers. |
| 2.8MHz gain-bandwidth product | Supports closed-loop gains up to 28 with >60° phase margin into 10kΩ//100pF loads. |
Applications
| Portable ECG Front-End | Industrial Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable monitors. IC Role / Device Role / Timing Role: Primary gain-stage amplifier with rail-to-rail I/O, configured as non-inverting amplifier (G = 100) and driven by low-noise 28nV/√Hz input. Use Value: 2.5pA input bias avoids electrode polarization errors; 600μA quiescent current enables >3-year operation on CR2032 cell. | Use Scenario: Conditioning output from platinum RTD (PT100) bridges in factory-floor temperature transmitters. IC Role / Device Role / Timing Role: Precision instrumentation amplifier input stage with matched 250μV offset and 92dB CMRR rejecting 50/60Hz noise. Use Value: Rail-to-rail output swings 0–3.3V into SAR ADC reference buffer; ±35mA drive sustains 100Ω trace impedance without droop. |
| Low-Power Gas Sensor Signal Chain | Smart Home CO Detector Analog Front-End |
Use Scenario: Amplifying nanoamp-level current from electrochemical gas sensors powered by energy-harvesting sources. IC Role / Device Role / Timing Role: Transimpedance amplifier with 10MΩ feedback resistor; leverages 2.5pA bias current to minimize dark-current error. Use Value: 600μA supply current aligns with μW-level harvesting budgets; 2.8MHz GBW ensures <10μs step response for fast gas concentration changes. | Use Scenario: Buffering and filtering output of MEMS-based CO sensing elements in UL-certified residential detectors. IC Role / Device Role / Timing Role: Unity-gain voltage follower isolating sensor output from RC filter and ADC input capacitance. Use Value: Rail-to-rail input accepts 0–1.8V sensor output; 1.5V/μs slew rate settles 12-bit steps in <1μs, meeting UL 2034 response-time mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA344UA | Lower 500μA supply current but only 1MHz GBW; no rail-to-rail output (clips 1V from rails); 10pA input bias. | Less suitable for high-speed, rail-limited signal chains requiring >2MHz bandwidth or full 3.3V swing. | Select when ultra-low power dominates over bandwidth and output swing requirements. |
| MCP6001T-E/OT | Same SOT23-5 package; 1kHz GBW; 100nA input bias; 100μA supply current; rail-to-rail I/O. | Insufficient for sensor interfaces needing >1MHz closed-loop bandwidth or sub-μV offset stability. | Select only for DC-coupled, low-frequency (<10kHz), ultra-low-power monitoring where 250μV offset is acceptable. |
Compared with OPA344UA and MCP6001T-E/OT, TLV2471CDG4 provides superior bandwidth-output drive trade-off and lower input bias - making it optimal for precision, battery-constrained, wide-dynamic-range analog signal paths where both speed and rail utilization matter.
Availability
TLV2471CDG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, and smart home safety systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2471CDG4 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 delivering analog and embedded processing solutions with emphasis on reliability, longevity, and design-in support.
The TLV247x family was engineered for high-performance, low-power signal conditioning in space- and energy-constrained applications - specifically targeting portable instrumentation, industrial process control, and battery-operated measurement systems.
FAQ
Does TLV2471CDG4 include a shutdown pin?
No, TLV2471CDG4 does not feature a shutdown function. Unlike TLV2470/3/5 variants, this device lacks a SHDN terminal. Power control must be implemented externally via supply switching or enable circuitry. The TLV2471CDG4 remains active whenever VDD is within 2.7V–6V and GND is referenced.
What is the maximum capacitive load TLV2471CDG4 can drive without instability?
TLV2471CDG4 becomes unstable with capacitive loads exceeding 10pF when directly connected. For loads >10pF, TI recommends inserting a series null resistor (RNULL ≥20Ω) between the output and load capacitance, as shown in Figure 42 of the datasheet. This preserves phase margin above 60° into 100pF loads.
Is TLV2471CDG4 pin-compatible with other SOT23-5 op-amps like MCP6001 or LMV321?
TLV2471CDG4 uses standard SOT23-5 pinout (OUT, IN−, IN+, GND, VDD), matching MCP6001T-E/OT and LMV321IDBVR. However, electrical behavior differs significantly - especially output drive, GBW, and input bias - so functional replacement requires validation of loop stability, settling time, and DC error in the target circuit.
What is the typical input offset voltage drift over temperature for TLV2471CDG4?
TLV2471CDG4 exhibits 0.4μV/°C typical input offset voltage drift (αVIO), measured across –40°C to +125°C. At 100°C temperature change, this contributes ~40μV additional offset - well within 12-bit accuracy budgets for 3.3V full-scale systems.
Can TLV2471CDG4 operate from a 2.5V supply?
No, TLV2471CDG4 has a minimum specified supply voltage of 2.7V. Operation below 2.7V is outside guaranteed specifications and may result in degraded rail-to-rail output swing, reduced GBW, or increased input offset voltage. Designers requiring 2.5V operation should consider alternatives such as TLV9001 or OPA316.
TLV2471CDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 8-SOIC
TLV2471CDG4 FAQ
1.How can I place an order for TLV2471CDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471CDG4 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 TLV2471CDG4 reliable?
The price and inventory of TLV2471CDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471CDG4 is usually 5 days.
3.What payment methods are accepted for TLV2471CDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471CDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471CDG4?
TLV2471CDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471CDG4 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 TLV2471CDG4?
For technical support, including TLV2471CDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471CDG4 requirements.
6.How does Aetrix verify that TLV2471CDG4 is sourced from the original manufacturer or authorized distributors?
All TLV2471CDG4 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 TLV2471CDG4 meets industry standards.
7.What is the process for return or replacement of TLV2471CDG4?
All TLV2471CDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471CDG4, 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 TLV2471CDG4 part is unused and in its original packaging.
Return procedure for TLV2471CDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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