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Texas Instruments TLV2461CDR
- Part No.:
- TLV2461CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2461CDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,093
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Product details
Overview
TLV2461CDR from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for low-power portable and industrial signal conditioning. It delivers 6.4 MHz gain-bandwidth product, 1.6 V/µs slew rate, ±80 mA output drive, 500 µA/channel supply current, and 100 µV input offset voltage - enabling high-fidelity buffering of ADC inputs in battery-powered sensor front-ends.
For engineers reviewing the TLV2461CDR datasheet, TLV2461CDR pinout, TLV2461CDR application, or TLV2461CDR equivalent, this device is selected for precision analog signal chains requiring rail-to-rail swing, micropower operation, shutdown control, and stable performance across −40°C to 125°C in compact SOIC-8 packaging.
Technical Context
The TLV2461CDR employs a CMOS input stage with rail-to-rail common-mode input range (0 V to VDD) and rail-to-rail output swing, supporting full dynamic range in single-supply systems down to 2.7 V. Its internal architecture integrates micropower biasing and a dedicated shutdown terminal that reduces supply current to 0.3 µA/channel while placing the output in high-impedance state.
It achieves 6.4 MHz unity-gain bandwidth and 1.6 V/µs slew rate at only 500 µA quiescent current per channel, with 11 nV/√Hz input voltage noise and 85 dB supply voltage rejection ratio - balancing AC fidelity and DC precision without compromising power efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6.4 MHz - enables stable unity-gain buffer configurations up to ~6 MHz with minimal phase margin degradation. |
| Slew Rate | 1.6 V/µs - supports clean 10-bit+ ADC driving at ≥100 kSPS without slewing-induced distortion. |
| Supply Current (per channel) | 500 µA - allows continuous operation in always-on sensor nodes powered by coin cells or energy harvesters. |
| Input Offset Voltage | 100 µV (typ) - ensures ≤0.002% gain error in 5 V full-scale instrumentation amplifiers. |
| Rail-to-Rail I/O | Input common-mode range: 0 V to VDD; Output swing: within 100 mV of rails - maximizes usable signal headroom in 3.3 V systems. |
| Shutdown Current | 0.3 µA/channel - reduces system standby power by >99.9% versus active mode, critical for duty-cycled measurement systems. |
| Output Drive | ±80 mA - directly drives 50 Ω transmission lines or multiple parallel ADC inputs without external buffers. |
Pinout & Package
TLV2461CDR is packaged in an 8-pin SOIC (D package), tape-and-reel format (R suffix), with thermal pad omitted. Pin 1 is marked by beveled edge or molded dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; capable of sourcing/sinking ±80 mA into resistive loads. |
| 2 (IN−) | Inverting input | High-impedance CMOS node; differential input voltage range extends beyond rails (−0.2 V to VDD + 0.2 V). |
| 3 (IN+) | Non-inverting input | High-impedance CMOS node; supports common-mode input from GND to VDD for single-supply operation. |
| 4 (GND) | Analog ground reference | Primary return path for input bias currents and output load current; must be low-impedance for noise immunity. |
| 5 (SHDN) | Shutdown control input | Active-low logic interface: <0.7 V = shutdown (0.3 µA), >2 V = active (500 µA); no pull-up required. |
| 6 (NC) | No internal connection | Unbonded pin; electrically isolated - may be left floating or tied to GND for mechanical stability. |
| 7 (VDD+) | Positive supply | Accepts 2.7–6 V single supply or ±1.35–±3 V split supply; bypass capacitor (0.1 µF) required at pin. |
| 8 (NC) | No internal connection | Unbonded pin; electrically isolated - may be left floating or tied to GND for mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3.3 V or 5 V supply rails in single-ended configurations, eliminating level-shifting circuitry. |
| Micropower shutdown mode | Reduces per-channel supply current to 0.3 µA while disabling output stage - ideal for time-sliced sensor acquisition. |
| High-output-drive capability | ±80 mA output current supports direct driving of ADC reference buffers, DAC outputs, or low-impedance transducers. |
| Low input voltage noise | 11 nV/√Hz at 1 kHz - preserves SNR in low-level signal amplification stages preceding 16-bit+ ADCs. |
| Wide temperature range | Specified from −40°C to +125°C (I-suffix) - qualified for under-hood automotive, industrial PLC, and outdoor IoT deployments. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG electrode signals in battery-powered wearable monitors. IC Role / Device Role: Single-supply, rail-to-rail instrumentation buffer with shutdown between sampling intervals. Use Value: 100 µV offset and 11 nV/√Hz noise preserve diagnostic accuracy; 500 µA quiescent current extends battery life to >1 week on CR2032. |
Use Scenario: Conditioning 4–20 mA loop transmitter outputs for PLC analog input modules. IC Role / Device Role: Precision voltage buffer isolating field-side current-to-voltage conversion from noisy digital backplane. Use Value: 85 dB SVR and 6.4 MHz bandwidth reject power supply ripple while maintaining loop response time <10 µs. |
| Automotive Cabin Air Quality | Smart Energy Metering |
|
Use Scenario: Signal conditioning for NDIR CO₂ sensor outputs in HVAC control units. IC Role / Device Role: Low-drift, rail-to-rail amplifier interfacing thermopile detectors to SAR ADCs. Use Value: −40°C to +125°C operation ensures reliability in dashboard environments; 0.3 µA shutdown cuts idle power during sleep cycles. |
Use Scenario: Buffering shunt-based current sensing in Class 0.5 electricity meters. IC Role / Device Role: High-precision, low-noise gain stage before metrology-grade sigma-delta ADC. Use Value: 100 µV offset contributes <0.002% error at 5 V full scale; ±80 mA drive handles anti-aliasing filter loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDR | Zero-drift architecture; 0.1 µV/°C drift vs TLV2461CDR's 2 µV/°C; 17 µV max VIO vs 1500 µV; 65 µA IQ vs 500 µA. | Better for ultra-low-drift DC applications (e.g., precision weigh scales); unsuitable where output drive >25 mA or shutdown is required. | Select OPA333AIDR when offset drift dominates error budget and power is secondary; avoid if ±80 mA drive or shutdown control is needed. |
| LMV321IDBVR | Rail-to-rail output only (not input); 1 MHz GBW vs 6.4 MHz; 110 µV VIO (typ); 80 µA IQ; no shutdown pin. | Lower cost for general-purpose buffering where input common-mode range beyond rails is unnecessary and speed <1 MHz suffices. | Select LMV321IDBVR for non-critical, low-speed, cost-sensitive designs without shutdown or wide common-mode requirements. |
Compared with OPA333AIDR and LMV321IDBVR, TLV2461CDR uniquely combines rail-to-rail input/output, 6.4 MHz bandwidth, ±80 mA drive, and integrated shutdown - making it the only option among the three suitable for high-fidelity, power-gated, single-supply sensor interfaces demanding both speed and output strength.
Availability
TLV2461CDR is available at Aetrix Electronics and suitable for portable medical devices, industrial process transmitters, automotive cabin sensors, and smart energy metering systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2461CDR 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 over 50 years of innovation in precision amplifiers and power management ICs.
The TLV246x family was designed specifically for portable and industrial applications requiring rail-to-rail operation, micropower consumption, and robust performance across −40°C to +125°C - targeting sensor signal conditioning, data acquisition front-ends, and battery-operated instrumentation.
FAQ
What is the operating temperature range for TLV2461CDR?
The TLV2461CDR is specified for operation from −40°C to +125°C (I-suffix grade), meeting industrial and automotive under-hood requirements. This range is validated per TI's qualification standards and applies across all electrical parameters in the datasheet, including input offset voltage, supply current, and output drive capability.
Does TLV2461CDR support true rail-to-rail input and output?
Yes, TLV2461CDR supports rail-to-rail input (common-mode range from GND to VDD) and rail-to-rail output (swing within 100 mV of each rail under load). This is confirmed in the "Recommended Operating Conditions" and "Electrical Characteristics" tables of the SLOS220J datasheet, enabling full dynamic range utilization in 3.3 V and 5 V single-supply systems.
What is the shutdown behavior of TLV2461CDR?
When the SHDN pin is pulled below 0.7 V, TLV2461CDR enters ultralow-power shutdown mode drawing just 0.3 µA per channel, and its output transitions to high-impedance state. The device resumes normal operation within 7.65 µs after SHDN rises above 2 V - verified in the "Operating Characteristics" section of the datasheet.
Can TLV2461CDR drive capacitive loads?
TLV2461CDR remains stable with up to 160 pF capacitive load at unity gain (per Figure 36), but phase margin degrades below 30° for larger loads or higher gains. For >100 pF loads, TI recommends adding a series resistor (10–50 Ω) between output and capacitance to maintain stability - documented in the "Capacitive Load vs Load Resistance" plot (Figure 14).
What package type is used for TLV2461CDR?
TLV2461CDR uses the SOIC-8 (D package) with tape-and-reel delivery (R suffix). Pinout matches standard SOIC-8 layout: OUT (1), IN− (2), IN+ (3), GND (4), SHDN (5), NC (6), VDD+ (7), NC (8). Thermal resistance θJA is 176°C/W, and maximum power dissipation at TA ≤ 25°C is 710 mW (per Dissipation Rating Table).
TLV2461CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.6V/µs
- Gain Bandwidth Product:
- 6.4 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1.3 nA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 550µA
- Current - Output / Channel:
- 80 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
TLV2461CDR FAQ
1.How can I place an order for TLV2461CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2461CDR 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 TLV2461CDR reliable?
The price and inventory of TLV2461CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2461CDR is usually 5 days.
3.What payment methods are accepted for TLV2461CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2461CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2461CDR?
TLV2461CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2461CDR 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 TLV2461CDR?
For technical support, including TLV2461CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2461CDR requirements.
6.How does Aetrix verify that TLV2461CDR is sourced from the original manufacturer or authorized distributors?
All TLV2461CDR 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 TLV2461CDR meets industry standards.
7.What is the process for return or replacement of TLV2461CDR?
All TLV2461CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2461CDR, 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 TLV2461CDR part is unused and in its original packaging.
Return procedure for TLV2461CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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