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Texas Instruments TLV2461QDG4
- Part No.:
- TLV2461QDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2461QDG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,583
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Product details
Overview
TLV2461QDG4 from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier designed for automotive 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 across −40°C to 125°C. It buffers ADC front-ends in battery-powered sensor interfaces requiring low-voltage operation and high dynamic range.
For engineers reviewing the TLV2461QDG4 datasheet, TLV2461QDG4 pinout, TLV2461QDG4 application, or TLV2461QDG4 equivalent, key selection criteria include its Q-temp automotive qualification (−40°C to 125°C), shutdown capability (0.3 µA/channel), rail-to-rail output swing, low noise (11 nV/√Hz at 1 kHz), and compatibility with 2.7–6 V single-supply systems.
Technical Context
The TLV2461QDG4 implements a CMOS input stage enabling rail-to-rail common-mode input range beyond supply rails and rail-to-rail output swing with high-current drive. Its architecture supports stable unity-gain operation with 160 pF capacitive load and provides phase margin ≥44° at unity gain with 10 kΩ load and 160 pF compensation.
It integrates a dedicated SHDN terminal that places the amplifier in ultralow-power mode (0.3 µA/channel) while forcing output into high-impedance state-critical for power-gated analog signal chains in automotive body control modules and industrial PLC I/O stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 6.4 MHz - enables stable closed-loop operation up to ~500 kHz with moderate gain (e.g., AV = 10). |
| Slew Rate | 1.6 V/µs - supports clean 100 kHz full-scale sine wave output at 2 VPP into 10 kΩ load. |
| Supply Current | 500 µA/channel - allows continuous operation in always-on 3 V sensor nodes with <1.5 mW total dissipation. |
| Input Offset Voltage | 100 µV - ensures ≤0.004% gain error in 2.5 V full-scale precision instrumentation amplifiers. |
| Output Drive | ±80 mA - drives 37.5 Ω loads directly (e.g., 75 Ω coaxial cable termination with series resistor). |
| Input Noise Voltage | 11 nV/√Hz @ 1 kHz - contributes <1.1 µV RMS noise in 10 kHz bandwidth, suitable for 16-bit ADC drivers. |
| Shutdown Current | 0.3 µA/channel - reduces system standby power by >99.9% vs active mode in duty-cycled measurement systems. |
Pinout & Package
TLV2461QDG4 is packaged in an 8-pin SOIC (DG) package with exposed thermal pad, qualified for automotive temperature range (−40°C to 125°C). The DG package has standard SOIC-8 footprint (5.3 mm × 6.2 mm, 1.27 mm pitch) and meets JEDEC MS-012 specifications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | Differential input node; accepts signals up to rail voltages; high impedance (>10⁹ Ω) minimizes loading on preceding stage. |
| 2 (IN+) | Non-inverting Input | Reference or signal input node; rail-to-rail common-mode range enables direct connection to resistive sensor bridges. |
| 3 (OUT) | Amplifier Output | Push-pull output capable of sourcing/sinking ±80 mA; rail-to-rail swing supports full utilization of 3 V ADC reference. |
| 4 (GND) | Analog Ground | Primary return path for input bias and output currents; must be connected to low-impedance ground plane to maintain PSRR/CMRR. |
| 5 (SHDN) | Shutdown Control | Active-low digital enable; <0.7 V disables amplifier and forces high-Z output; >2 V enables normal operation. |
| 6 (VDD+) | Positive Supply | Single-supply input (2.7–6 V); internal regulation ensures stable biasing across voltage and temperature. |
| 7 (NC) | No Connect | Internally unconnected pin; must remain floating or grounded per layout best practices to avoid parasitic coupling. |
| 8 (NC) | No Connect | Internally unconnected pin; no electrical function; PCB trace should avoid routing near sensitive analog nodes. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input/output swing | Enables full dynamic range utilization in 3 V systems without level-shifting circuitry. |
| Automotive Q-temp qualification | Guaranteed operation from −40°C to 125°C with AEC-Q100 stress testing and configuration control. |
| Ultralow shutdown current | 0.3 µA/channel allows multi-second sleep intervals in battery-powered telematics without measurable capacity loss. |
| High-output-drive capability | ±80 mA output supports driving 100 pF + 1 kΩ loads typical of SAR ADC sample-and-hold inputs. |
| Low input voltage noise | 11 nV/√Hz at 1 kHz ensures minimal contribution to total system noise floor in precision sensor signal chains. |
Applications
| Automotive Cabin Temperature Sensing | Industrial 4–20 mA Loop Receiver |
|---|---|
Use Scenario: Amplifying thermistor voltage in HVAC control module under engine-bay thermal cycling (−40°C to 125°C). IC Role / Device Role / Timing Role: Precision buffer and level shifter between NTC thermistor divider and 12-bit SAR ADC. Use Value: Rail-to-rail input allows direct connection to 3.3 V supply-referenced divider; 100 µV VIO limits temperature error to <0.1°C over full range. | Use Scenario: Converting 4–20 mA loop current to 0–3 V signal for microcontroller ADC in programmable logic controller (PLC) analog input card. IC Role / Device Role / Timing Role: Low-drift transimpedance amplifier with programmable gain via external resistor. Use Value: 6.4 MHz GBW supports fast step response (<1 µs settling to 0.1%) during loop fault detection; ±80 mA drive handles transient overloads. |
| Portable Medical ECG Front-End | Battery-Powered Environmental Sensor Hub |
Use Scenario: First-stage amplification of low-amplitude biopotential signals (≤5 mV PP) in wearable ECG patch with coin-cell battery. IC Role / Device Role / Timing Role: Instrumentation-grade signal conditioner with DC-coupled input and selectable gain. Use Value: 11 nV/√Hz input noise preserves SNR for 16-bit digitization; 500 µA supply current extends battery life to >72 hours at 1 kHz sampling. | Use Scenario: Signal conditioning for multi-sensor node (CO₂, humidity, VOC) operating on Li-SOCl₂ primary cell with 10-year shelf life requirement. IC Role / Device Role / Timing Role: Power-gated analog front-end amplifier activated only during measurement bursts. Use Value: 0.3 µA shutdown current prevents >1 µA parasitic drain; Q-temp rating ensures reliability during outdoor thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2461IDR | Same core specs but rated for −40°C to 125°C (I-suffix), not Q-temp qualified; SOIC-8 DG package identical. | Lacks AEC-Q100 compliance documentation and automotive configuration control; unsuitable for safety-critical vehicle subsystems. | Select when automotive qualification is unnecessary and cost optimization is prioritized over long-term supply assurance. |
| OPA333AIDBVR | Zero-drift architecture; 0.1 µV max VIO (vs 1500 µV max for TLV2461QDG4); 17 µV/°C drift (vs 2 µV/°C); 65 µA supply current. | Superior DC precision but lower bandwidth (350 kHz GBW) and output drive (25 mA); no shutdown pin. | Select for ultra-low-offset applications where AC performance and power gating are secondary to baseline accuracy. |
Compared with TLV2461IDR, TLV2461QDG4 adds formal automotive qualification, extended test coverage, and lifecycle management-justifying premium cost in vehicle platforms. Versus OPA333AIDBVR, TLV2461QDG4 trades DC precision for higher speed, robust output drive, and integrated shutdown-making it better suited for dynamic sensor buffering in harsh environments.
Availability
TLV2461QDG4 is available at Aetrix Electronics and suitable for automotive cabin control, industrial process monitoring, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2461QDG4 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 experience in high-reliability automotive and industrial IC design.
The TLV246x family was engineered specifically for low-power, rail-to-rail signal conditioning in portable and automotive systems-emphasizing wide supply range (2.7–6 V), high output drive, and extended temperature operation without sacrificing precision or noise performance.
FAQ
What is the operating temperature range for TLV2461QDG4?
The TLV2461QDG4 is qualified for the automotive Q-temp range of −40°C to 125°C ambient temperature. This rating is verified per AEC-Q100 stress test requirements and includes full electrical characterization across the range, making it suitable for under-hood and cabin applications where thermal stability is critical. The device maintains specified performance including input offset voltage (max 1500 µV), supply current (max 0.9 mA), and output drive (±80 mA) throughout this interval.
Does TLV2461QDG4 support single-supply operation?
Yes, TLV2461QDG4 fully supports single-supply operation from 2.7 V to 6 V. Its rail-to-rail input common-mode range extends beyond both supply rails (0 V to VDD), and its output swings within 100 mV of each rail under 10 mA load-enabling direct interfacing with 3.3 V or 5 V microcontrollers and ADCs without level-shifting circuitry. This capability is explicitly validated in the datasheet's recommended operating conditions and electrical characteristics tables.
What is the shutdown behavior of TLV2461QDG4?
When the SHDN pin is pulled below 0.7 V, TLV2461QDG4 enters ultralow-power shutdown mode drawing just 0.3 µA per channel, and its output transitions to a high-impedance state. This behavior is confirmed in the electrical characteristics table (IDD(SHDN)) and operating characteristics section. The amplifier resumes normal operation within 7.65 µs after SHDN rises above 2 V, enabling rapid wake-up in burst-mode sensing applications.
Is TLV2461QDG4 pin-compatible with other TLV246x variants?
TLV2461QDG4 uses the standard SOIC-8 (DG) package and shares identical pinout with TLV2461IDR, TLV2461CDR, and TLV2461AIDR-specifically: Pin 1 (IN−), Pin 2 (IN+), Pin 3 (OUT), Pin 4 (GND), Pin 5 (SHDN), Pin 6 (VDD+), Pins 7–8 (NC). This mechanical and functional pin compatibility allows drop-in replacement among TLV2461 variants, provided temperature grade and qualification requirements align with the target application.
What load capacitance can TLV2461QDG4 safely drive?
TLV2461QDG4 is characterized for stable operation with up to 160 pF capacitive load when driving a 10 kΩ resistive load, delivering ≥44° phase margin at unity gain. The datasheet's Figure 36 (Phase Margin vs Load Capacitance) confirms stability down to 30° phase margin at ~300 pF under same conditions. For heavier loads, external isolation resistor (e.g., 10–50 Ω) between amplifier output and capacitor is recommended to maintain stability in ADC driver or filter applications.
TLV2461QDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2461QDG4 FAQ
1.How can I place an order for TLV2461QDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2461QDG4 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 TLV2461QDG4 reliable?
The price and inventory of TLV2461QDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2461QDG4 is usually 5 days.
3.What payment methods are accepted for TLV2461QDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2461QDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2461QDG4?
TLV2461QDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2461QDG4 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 TLV2461QDG4?
For technical support, including TLV2461QDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2461QDG4 requirements.
6.How does Aetrix verify that TLV2461QDG4 is sourced from the original manufacturer or authorized distributors?
All TLV2461QDG4 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 TLV2461QDG4 meets industry standards.
7.What is the process for return or replacement of TLV2461QDG4?
All TLV2461QDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2461QDG4, 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 TLV2461QDG4 part is unused and in its original packaging.
Return procedure for TLV2461QDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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