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Texas Instruments TLV2781IDBVR
- Part No.:
- TLV2781IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2781IDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,840
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Product details
Overview
TLV2781IDBVR from Texas Instruments is a single-channel rail-to-rail input/output operational amplifier optimized for ultra-low-voltage, low-power applications. It operates from 1.8 V to 3.6 V, delivers 8 MHz gain-bandwidth, 4.8 V/µs slew rate at 2.7 V, and draws only 650 µA per channel - enabling high-speed signal conditioning in battery-powered sensor interfaces and portable data converters.
For engineers reviewing the TLV2781IDBVR datasheet, TLV2781IDBVR pinout, TLV2781IDBVR application, or TLV2781IDBVR equivalent, this page provides verified electrical specifications, SOT-23-5 package terminal mapping, industrial-grade (−40°C to 125°C) performance validation, and direct alternatives for low-voltage precision amplification.
Technical Context
The TLV2781IDBVR implements a CMOS input stage with rail-to-rail input common-mode range (−0.2 V to VDD+0.2 V) and rail-to-rail output swing, supporting full-scale operation near supply rails. Its 8 MHz unity-gain bandwidth and 4.8 V/µs positive slew rate are achieved with only 650 µA supply current per channel - a key efficiency advantage over competing low-voltage op-amps.
It features integrated shutdown functionality (active-low SHDN pin), reducing quiescent current to 900 nA/channel when disabled. The device is specified across −40°C to 125°C and supports split-supply operation (±0.9 V to ±1.8 V), making it suitable for automotive and industrial signal chains where supply headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - enables direct operation from two rechargeable cells or single Li-ion/Li-Po battery systems without regulation. |
| Gain-Bandwidth Product | 8 MHz - supports stable closed-loop operation up to ~1 MHz with moderate gain, suitable for anti-aliasing and reconstruction filters. |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - ensures <2.4 µs settling to 0.1% for 1 V step, critical for driving SAR ADC inputs without distortion. |
| Input Offset Voltage | Max 3000 µV (I-grade) - sufficient for 12-bit precision in sensor front-ends with calibration; 2000 µV max for A-grade variants. |
| Supply Current per Channel | 650 µA typical - allows integration of multiple channels in space-constrained, always-on monitoring nodes. |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - low enough for high-resolution audio preamplification and precision instrumentation amplifiers. |
| Operating Temperature | −40°C to 125°C - qualified for under-hood automotive, industrial PLC I/O modules, and outdoor IoT edge sensors. |
Pinout & Package
SOT-23-5 (DBV) package: 5-pin, surface-mount, 2.9 mm × 1.6 mm footprint with exposed pad option (not thermally enhanced in standard DBV). RoHS-compliant, tape-and-reel delivery (3000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail voltage swing; capable of sourcing/sinking ±10 mA; high-Z during shutdown. |
| 2 - GND | Analog ground reference | Primary return path for input bias currents and output load; must connect to low-impedance ground plane. |
| 3 - IN+ | Non-inverting input | CMOS input with 2.5 pA typical bias current; supports common-mode range down to −0.2 V. |
| 4 - VDD | Positive supply | Accepts 1.8–3.6 V; requires local 0.1 µF ceramic decoupling placed ≤2 mm from pin. |
| 5 - IN− | Inverting input | Differential pair input; matched to IN+ for offset and drift; sensitive to PCB trace length asymmetry. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in single-supply systems - e.g., 0–3.3 V ADC interface without level-shifting. |
| Ultra-low supply current | 650 µA/channel at 1.8 V allows >10-year battery life in wake-on-event sensor nodes using intermittent sampling. |
| Shutdown mode | Reduces IDD to 900 nA/channel and places output in high-impedance state - essential for multiplexed analog front-ends. |
| Low input noise | 9 nV/√Hz at 10 kHz supports 16-bit effective resolution in audio and medical signal paths without added filtering. |
| Industrial temperature grade | Specified from −40°C to 125°C ensures parametric stability in engine control units and motor drive feedback loops. |
Applications
| Portable Medical Sensors | Automotive Cabin Pressure Monitoring |
|---|---|
Use Scenario: Amplifying low-level bridge outputs from MEMS pressure transducers in wearable ECG or spirometry devices. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail output driving 12-bit SAR ADC input. Use Value: 650 µA supply current extends coin-cell battery life beyond 2 years; 3 mV max VIO avoids calibration in production. | Use Scenario: Signal conditioning for cabin air pressure sensors in HVAC control modules. IC Role / Device Role / Timing Role: Low-drift buffer and filter driver operating across −40°C to 125°C ambient. Use Value: Guaranteed 3000 µV VIO max over full temperature range eliminates need for on-board trimming resistors. |
| Industrial 4–20 mA Loop Receivers | Low-Power Audio Line Drivers |
Use Scenario: Converting 4–20 mA loop current to 0–2.5 V for microcontroller ADC input in smart field transmitters. IC Role / Device Role / Timing Role: Precision I-to-V converter with programmable gain and shutdown for power cycling. Use Value: Shutdown current <1 µA enables rapid power gating between measurement cycles, cutting average system power by >95%. | Use Scenario: Driving line-level audio signals from portable media players into 10 kΩ loads. IC Role / Device Role / Timing Role: Unity-gain buffer with low THD+N (0.055%) and 9 nV/√Hz noise floor. Use Value: 8 MHz GBW preserves transient response up to 20 kHz; rail-to-rail output delivers full 1.8 Vpp swing from 3.3 V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA316IDBVR | Higher GBW (10 MHz), lower noise (5.5 nV/√Hz), but higher supply current (400 µA vs 650 µA at 1.8 V) | Better for wideband audio or fast-settling data acquisition; less optimal for ultra-low-power always-on sensing | Select OPA316IDBVR when bandwidth/noise priority outweighs quiescent current constraints. |
| TLV9001IDBVR | Lower VIO (0.75 mV typ), rail-to-rail I/O, but reduced GBW (1 MHz) and slower slew rate (2 V/µs) | Preferred for DC-precision applications like strain gauge bridges; unsuitable for >100 kHz signal paths | Choose TLV9001IDBVR for sub-mV offset-critical designs where speed is secondary. |
Compared with OPA316IDBVR and TLV9001IDBVR, the TLV2781IDBVR uniquely balances 8 MHz bandwidth, 650 µA supply current, and −40°C to 125°C operation - making it the optimal choice for battery-powered industrial sensors requiring both speed and longevity.
Availability
TLV2781IDBVR is available at Aetrix Electronics and suitable for portable medical sensors, automotive cabin pressure monitoring, industrial 4–20 mA loop receivers, and low-power audio line drivers requiring stable component supply across extended temperature ranges.
Supply support for TLV2781IDBVR 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-amp design and manufacturing.
The TLV278x family was engineered for ultra-low-voltage, low-power signal conditioning in battery-operated and energy-constrained systems - targeting portable instrumentation, automotive body electronics, and industrial sensor nodes.
FAQ
What is the maximum recommended supply voltage for TLV2781IDBVR?
The absolute maximum supply voltage for TLV2781IDBVR is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V per the datasheet. Exceeding 3.6 V risks parametric shift or reliability degradation; operation at 3.6 V is validated for full performance including rail-to-rail output swing and 8 MHz bandwidth.
Does TLV2781IDBVR support true rail-to-rail input and output?
Yes, TLV2781IDBVR supports rail-to-rail input (common-mode range from −0.2 V to VDD+0.2 V) and rail-to-rail output (swing within 180 mV of rails at 1.8 V, 120 mV at 2.7 V). This is confirmed in the "Recommended Operating Conditions" and "Output Characteristics" sections of the SLOS245E datasheet.
What is the shutdown behavior of TLV2781IDBVR?
TLV2781IDBVR enters shutdown when the SHDN pin (Pin 5) is pulled low, reducing supply current to 900 nA/channel and placing the output in high-impedance state. The device exits shutdown when SHDN is left floating or tied to VDD. Turn-on time is 800 ns, turn-off time is 200 ns - both measured at RL = 2 kΩ.
Can TLV2781IDBVR drive capacitive loads directly?
No - the TLV2781IDBVR becomes unstable with capacitive loads >10 pF unless isolated by a series resistor (RNULL). Per Figure 30 in the datasheet, a 10–50 Ω resistor between output and load restores phase margin; this is mandatory for driving ADC input capacitance or long PCB traces.
Is TLV2781IDBVR qualified for automotive applications?
TLV2781IDBVR is specified for −40°C to 125°C operation and meets industrial reliability standards, but it is not AEC-Q200 qualified. It is widely used in non-safety-critical automotive cabin modules (e.g., HVAC, seat controls), though mission-critical powertrain or ADAS systems require AEC-Q100-qualified alternatives.
TLV2781IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2.5 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 650µA
- Current - Output / Channel:
- 23 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 3.6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV2781IDBVR FAQ
1.How can I place an order for TLV2781IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2781IDBVR 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 TLV2781IDBVR reliable?
The price and inventory of TLV2781IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2781IDBVR is usually 5 days.
3.What payment methods are accepted for TLV2781IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2781IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2781IDBVR?
TLV2781IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2781IDBVR 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 TLV2781IDBVR?
For technical support, including TLV2781IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2781IDBVR requirements.
6.How does Aetrix verify that TLV2781IDBVR is sourced from the original manufacturer or authorized distributors?
All TLV2781IDBVR 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 TLV2781IDBVR meets industry standards.
7.What is the process for return or replacement of TLV2781IDBVR?
All TLV2781IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2781IDBVR, 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 TLV2781IDBVR part is unused and in its original packaging.
Return procedure for TLV2781IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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