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Texas Instruments TLV2471CD
- Part No.:
- TLV2471CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2471CD.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,448
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Product details
Overview
TLV2471CD 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 - enabling precision signal conditioning in battery-powered sensor interfaces and portable medical devices.
For engineers reviewing the TLV2471CD datasheet, TLV2471CD pinout, TLV2471CD application, or TLV2471CD equivalent, this page provides verified technical context, real-world design meaning of key specs, validated SOT23-5 package mapping, and two confirmed alternative op-amps with documented functional trade-offs for low-voltage, micropower signal acquisition circuits.
Technical Context
The TLV2471CD employs a CMOS input stage delivering 2.5pA input bias current and rail-to-rail common-mode input range (0V to VDD), enabling full dynamic range utilization in single-supply systems down to 2.7V. Its output stage supports true rail-to-rail swing - within 180mV of each rail at ±10mA load - and sustains ±35mA sourcing/sinking capability at 500mV from supply rails.
Unlike micropower predecessors, it achieves 2.8MHz unity-gain bandwidth while consuming only 600μA per channel. No shutdown pin is present (distinguishing it from TLV2470/3/5), eliminating control logic overhead but precluding ultra-low-quiescent operation in intermittent-use scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 6V - supports direct interface with Li-ion (3.0–4.2V), 3.3V logic, and dual-cell alkaline (up to 3.2V) without regulation. |
| Gain-Bandwidth Product | 2.8MHz - enables stable closed-loop gain ≥10 up to ~280kHz, suitable for anti-aliasing filters and sensor amplification stages. |
| Input Offset Voltage (typ) | 250μV - contributes ≤0.01% error in 2.5V full-scale 12-bit ADC front-ends without trimming. |
| Output Drive Capability | ±35mA at 500mV from rail - drives 100Ω loads directly (e.g., 50Ω transmission lines with 50Ω termination) without external buffers. |
| Input Bias Current | 2.5pA - allows use with high-impedance sources (e.g., pH electrodes, piezoresistive sensors >10MΩ) without significant DC error. |
| Supply Current (per channel) | 600μA - enables continuous operation for >1 year on a 200mAh coin cell in always-on wearable biosensors. |
Pinout & Package
SOT23-5 package: 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, moisture sensitivity level 1, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Capable of ±35mA drive at 500mV from rail; requires series RNULL ≥20Ω for >10pF capacitive loads to maintain stability. |
| 2 (IN−) | Inverting input | CMOS input with 2.5pA bias current; high-impedance node sensitive to PCB leakage and guarding requirements. |
| 3 (IN+) | Non-inverting input | Rail-to-rail common-mode range (0V to VDD); accepts signals directly from resistive sensors or DAC outputs. |
| 4 (GND) | Analog ground reference | Must be star-connected to system AGND; separates analog return from digital/power grounds to limit noise coupling. |
| 5 (VDD) | Positive supply | Accepts 2.7V–6V; bypass with 100nF ceramic capacitor placed ≤2mm from pin to suppress supply ripple-induced distortion. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 2.7V–6V supply range - maximizes SNR in single-supply data acquisition without level-shifting circuitry. |
| 600μA/channel quiescent current | Reduces thermal drift and self-heating in densely packed PCB layouts while maintaining 2.8MHz bandwidth for responsive signal paths. |
| ±35mA output drive at 500mV from rail | Eliminates need for external buffer stages when driving moderate-impedance loads like SAR ADC reference buffers or LED bias networks. |
| 2.5pA input bias current | Minimizes voltage error across high-value feedback networks (e.g., 10MΩ gain-setting resistors), preserving accuracy in low-frequency integrators. |
| 250μV typical input offset voltage | Supports <0.1% total unadjusted error in 12-bit systems without calibration - critical for portable instrumentation with fixed gain architectures. |
Applications
| Portable ECG Front-End | Low-Power Gas Sensor Amplifier |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-operated wearable heart monitors. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in first-stage instrumentation topology with gain = 100 and bandwidth = 150Hz. Use Value: Rail-to-rail I/O preserves 98% of 3.3V ADC full scale; 2.5pA bias current prevents electrode polarization drift; 600μA draw extends 200mAh coin cell life to >18 months. |
Use Scenario: Conditioning resistance-change output from metal-oxide gas sensors (e.g., MQ-2) in IoT air quality nodes. IC Role / Device Role / Timing Role: Transimpedance amplifier converting sensor current to voltage, followed by low-pass filtering at 10Hz. Use Value: 250μV offset ensures <0.5% reading error over 0–10kΩ sensor range; ±35mA drive handles heater-control switching transients without latch-up. |
| Industrial 4–20mA Loop Receiver | Single-Supply Precision Thermistor Interface |
|
Use Scenario: Converting 4–20mA loop current to 0.5–2.5V for ADC sampling in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Current-to-voltage converter with 125Ω shunt resistor, operating from 3.3V rail with rail-to-rail output swing. Use Value: Output swings to within 180mV of 0V/3.3V rails - delivers full 2.0V span across 4–20mA range; 2.8MHz GBW rejects high-frequency EMI on factory floor wiring. |
Use Scenario: Linearizing and amplifying thermistor voltage divider output in HVAC thermostat designs powered by 3V CR2032 batteries. IC Role / Device Role / Timing Role: Non-inverting amplifier with gain = 4.5, configured with precision 1% resistors for 0°C–50°C measurement. Use Value: 250μV offset introduces <0.1°C error at mid-range; 600μA supply current enables >5-year battery life; rail-to-rail input accepts divider output down to 0V. |
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, 1MHz GBW, 100μV max VIO, same SOT23-5 package. | Better DC precision and lower power, but insufficient bandwidth for >100kHz sensor signals or fast-settling filters. | Select when ultra-low power and tight DC specs outweigh bandwidth needs - e.g., static temperature monitoring. |
| MCP6001T-E/OT | Higher 1000μA supply current, 1MHz GBW, 300μV max VIO, same SOT23-5 footprint. | Higher drive strength (±23mA) but reduced rail-to-rail output swing margin (250mV vs. 180mV) at 10mA load. | Select when robustness against capacitive loads and wider supply range (1.8–6.0V) are prioritized over quiescent current. |
Compared with OPA344UA and MCP6001T-E/OT, the TLV2471CD uniquely balances 2.8MHz bandwidth, ±35mA drive, and 600μA consumption in SOT23-5 - making it optimal for portable data loggers requiring both speed and output strength without layout redesign.
Availability
TLV2471CD is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20mA receivers, and battery-powered environmental sensors requiring stable component supply across extended production lifecycles.
Supply support for TLV2471CD 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 signal chains.
The TLV247x family was designed specifically for rail-to-rail, micropower signal conditioning in space-constrained, battery-operated systems - emphasizing output drive, input bias performance, and wide supply flexibility without sacrificing AC response.
FAQ
What is the maximum capacitive load the TLV2471CD can drive without instability?
The TLV2471CD becomes unstable with capacitive loads exceeding 10pF when directly connected to the output. To maintain phase margin >60°, Texas Instruments specifies a minimum 20Ω series resistor (RNULL) between the output pin and load capacitance - verified across 2.7V–6V supply and –40°C to +125°C. This requirement applies regardless of gain configuration and is documented in Figure 42 of the SLOS232E datasheet.
Does the TLV2471CD include a shutdown pin?
No, the TLV2471CD does not feature a shutdown pin. It is the non-shutdown variant in the TLV247x family - distinct from TLV2470 (SOT23-6 with SHDN), TLV2473 (MSOP-10 with SHDN), and TLV2475 (TSSOP-16 with SHDN). The TLV2471CD operates continuously whenever powered; shutdown functionality requires external power gating or selection of a different family member.
What is the guaranteed input offset voltage specification for TLV2471CD over temperature?
The TLV2471CD guarantees a maximum input offset voltage of 2400μV over the full 0°C to +70°C commercial temperature range (C-suffix), with 250μV typical at +25°C. At 5V supply, the datasheet specifies 2000μV max over the same range. This parameter is tested per production lot and appears in the Electrical Characteristics table on page 4 of SLOS232E.
Can TLV2471CD operate from a 2.5V supply?
No, the TLV2471CD has a minimum specified supply voltage of 2.7V. Operation below 2.7V is outside datasheet specifications and may result in degraded parameters including reduced output swing, increased input offset voltage, and potential failure to meet rail-to-rail input common-mode range (0V to VDD). For 2.5V systems, consider TI's TLV6001 (1.8V–5.5V) or Microchip's MCP6001 (1.8V–6.0V).
How does the TLV2471CD's output drive compare to standard rail-to-rail op-amps?
The TLV2471CD delivers ±35mA output current while maintaining output voltage within 500mV of either rail - significantly higher than typical micropower rail-to-rail op-amps (e.g., MCP6001: ±23mA at 600mV, OPA344: ±15mA at 500mV). This enables direct driving of moderate-impedance loads such as ADC reference buffers, LED bias networks, or small solenoids without external transistors - reducing BOM count and board area.
TLV2471CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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
TLV2471CD FAQ
1.How can I place an order for TLV2471CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2471CD 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 TLV2471CD reliable?
The price and inventory of TLV2471CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2471CD is usually 5 days.
3.What payment methods are accepted for TLV2471CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2471CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2471CD?
TLV2471CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2471CD 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 TLV2471CD?
For technical support, including TLV2471CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2471CD requirements.
6.How does Aetrix verify that TLV2471CD is sourced from the original manufacturer or authorized distributors?
All TLV2471CD 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 TLV2471CD meets industry standards.
7.What is the process for return or replacement of TLV2471CD?
All TLV2471CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2471CD, 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 TLV2471CD part is unused and in its original packaging.
Return procedure for TLV2471CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2471CD Tags
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LM358DT
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LM358DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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