My Inquiry
My Account
Texas Instruments TLV2781ID
- Part No.:
- TLV2781ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2781ID.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,232
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2781ID from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for low-voltage, high-speed 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 precision signal conditioning in battery-powered data converters and portable instrumentation.
For engineers reviewing the TLV2781ID datasheet, TLV2781ID pinout, TLV2781ID application, or TLV2781ID equivalent, key selection criteria include its −40°C to 125°C industrial temperature rating, rail-to-rail output swing down to 1.8 V supply, shutdown capability (900 nA quiescent current), and verified performance with capacitive loads up to 25 pF.
Technical Context
The TLV2781ID employs a CMOS input stage with 2.5 pA typical input bias current and supports common-mode input voltage from −0.2 V to VDD+0.2 V. Its internal compensation enables stable unity-gain operation with 58° phase margin into 2 kΩ//25 pF loads.
It features an active shutdown pin (SHDN) that places the output in high-impedance state and reduces supply current to ≤1.7 µA over full temperature range - critical for power-gated sensor front-ends and portable medical devices requiring rapid wake/sleep transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - compatible with two 1.2 V NiMH/NiCd cells or single Li-ion cell with LDO regulation |
| Gain-Bandwidth Product | 8 MHz - supports ≥1 MSPS sampling in driving SAR ADC drivers without bandwidth limitation |
| Slew Rate | 4.8 V/µs at VDD = 2.7 V - ensures <2.8 µs settling to 0.01% for 1 V step, suitable for fast-settling buffer stages |
| Input Offset Voltage | 3000 µV max (−40°C to 125°C) - enables DC-coupled sensor amplification with sub-mV accuracy after calibration |
| Supply Current per Channel | 650 µA typical - allows 10+ channels on a 10 mA rail in portable systems |
| Input Noise Voltage | 9 nV/√Hz at 10 kHz - preserves SNR in audio preamps and high-resolution sensor interfaces |
| Shutdown Current | 900 nA typical - reduces system standby power by >99% vs active mode |
Pinout & Package
The TLV2781ID is housed in an industry-standard 5-pin SOT-23 (DBV) package with exposed pad for thermal enhancement. Pin 1 is OUT, Pin 2 is IN−, Pin 3 is IN+, Pin 4 is GND, and Pin 5 is SHDN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Rail-to-rail swing: drives 10 mA load while maintaining 1.46 V headroom from GND and 1.63 V from VDD at 1.8 V supply |
| 2 (IN−) | Inverting input | High-impedance CMOS node; requires matched trace length to IN+ to minimize EMI-induced offset |
| 3 (IN+) | Non-inverting input | Supports VICR from −0.2 V to VDD+0.2 V - enables level-shifting and single-supply transducer interfacing |
| 4 (GND) | Analog ground reference | Must connect to low-impedance ground plane; separate from digital ground except at single point |
| 5 (SHDN) | Active-high shutdown control | Pull to VDD or float to enable; tie to GND to disable and enter 900 nA sleep mode |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 1.8 V systems - output swings within 180 mV of rails at 5 mA load |
| Ultra-low supply current | 650 µA/channel allows integration into always-on sensor nodes without compromising battery life |
| Industrial temperature range | Specified from −40°C to 125°C - qualified for under-hood automotive and industrial PLC analog front-ends |
| Capacitive load drive | Stable with 25 pF load (CL) and 2 kΩ resistive load - eliminates need for external isolation resistor in many DAC output buffers |
| Shutdown function | Reduces total system current by >99.9% during idle periods - essential for energy harvesting and wearable devices |
Applications
| Portable Data Acquisition | Medical Sensor Interface |
|---|---|
Use Scenario: Battery-powered handheld multimeter acquiring thermocouple and RTD signals at 10 kSPS. IC Role / Device Role / Timing Role: Precision buffer and level shifter between sensor and 16-bit SAR ADC, operating from 2-cell NiMH supply. Use Value: Rail-to-rail I/O and 8 MHz bandwidth ensure full-scale signal fidelity without clipping or phase lag at acquisition rates up to 1 MSPS. | Use Scenario: Wearable ECG patch digitizing microvolt-level cardiac signals with ultra-low power budget. IC Role / Device Role / Timing Role: Low-noise, low-power instrumentation amplifier front-end stage with programmable gain and shutdown between measurements. Use Value: 9 nV/√Hz input noise and 900 nA shutdown current extend battery life to >7 days while preserving diagnostic signal integrity. |
| Industrial Process Control | Automotive Cabin Sensors |
Use Scenario: 4–20 mA loop-powered transmitter conditioning pressure sensor output in factory automation. IC Role / Device Role / Timing Role: Single-supply signal conditioner converting ratiometric bridge output to current-loop driver input. Use Value: −40°C to 125°C rating and 3000 µV max VIO ensure stable calibration across ambient extremes without drift compensation circuitry. | Use Scenario: Occupancy detection module using MEMS microphone and IR proximity sensor in automotive HVAC control. IC Role / Device Role / Timing Role: Dual-role amplifier: mic preamp during active sensing, then shutdown during sleep cycles to meet UNECE R155 power targets. Use Value: Fast 800 ns turn-on time enables immediate signal capture upon wake event, eliminating startup delay in safety-critical cabin monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture; 0.1 µV/°C offset drift vs TLV2781ID's 8 µV/°C; 350 µA supply current; no shutdown pin | Better DC precision for long-term sensor monitoring; unsuitable where dynamic power gating is required | Select when ultra-low drift dominates over shutdown capability and bandwidth |
| LMV721IDBVR | Lower bandwidth (1.5 MHz); higher supply current (1.25 mA); no shutdown; rail-to-rail output only (not input) | Cost-optimized general-purpose replacement where 8 MHz BW and input rail-to-rail are not needed | Select for non-critical, cost-sensitive industrial controls with 3.3 V supplies and relaxed AC specs |
Compared with OPA333AIDBVR and LMV721IDBVR, the TLV2781ID uniquely balances 8 MHz bandwidth, rail-to-rail input/output, shutdown functionality, and 1.8 V operation - making it the only choice for high-speed, low-voltage, power-gated signal chains in portable and automotive domains.
Availability
TLV2781ID is available at Aetrix Electronics and suitable for portable data acquisition, medical sensor interface, industrial process control, and automotive cabin sensor applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2781ID 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 for industrial, automotive, and personal electronics markets.
The TLV2781ID belongs to TI's TLV278x family of low-voltage, rail-to-rail op amps designed specifically for high-speed, low-power signal conditioning in battery-operated and thermally constrained systems.
FAQ
What is the maximum recommended supply voltage for TLV2781ID?
The absolute maximum supply voltage for TLV2781ID 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 degradation and reduced reliability, especially at high temperatures. Operation at 3.6 V enables full rail-to-rail output swing while maintaining 650 µA supply current and 8 MHz bandwidth.
Does TLV2781ID support rail-to-rail input at 1.8 V supply?
Yes, TLV2781ID supports rail-to-rail input with common-mode voltage range from −0.2 V to VDD+0.2 V. At 1.8 V supply, this means the input accepts signals from −0.2 V to +2.0 V - enabling direct interfacing with transducers and sensors whose outputs exceed the supply rail, such as piezoelectric elements or biased photodiodes.
What is the typical turn-on time for TLV2781ID from shutdown mode?
The typical amplifier turn-on time (ton) for TLV2781ID is 800 ns when transitioning from shutdown to active mode with RL = 2 kΩ. This fast wake-up enables use in burst-mode sensing applications like ultrasonic distance measurement or periodic ECG sampling, where latency must be minimized without sacrificing power savings during idle intervals.
Can TLV2781ID drive a 1000 pF capacitive load stably?
No - TLV2781ID is characterized for stability with up to 25 pF capacitive load (CL) into 2 kΩ. Driving 1000 pF directly will cause severe peaking or oscillation due to phase margin collapse. For heavy capacitive loads, TI recommends adding a series null resistor (RNULL) between the output and load, as documented in Figure 30 of the SLOS245E datasheet.
Is TLV2781ID pin-compatible with other TLV278x variants in SOT-23 package?
Yes, TLV2781ID shares identical 5-pin SOT-23 (DBV) pinout with TLV2780ID, TLV2781CD, and TLV2780CD - all feature OUT/IN−/IN+/GND/SHDN mapping. However, TLV2780x lack shutdown functionality (no SHDN pin used), so TLV2781ID's Pin 5 must be tied to VDD or left floating in designs migrating from TLV2780x to retain full functionality.
TLV2781ID 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:
- 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:
- 8-SOIC
TLV2781ID FAQ
1.How can I place an order for TLV2781ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2781ID 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 TLV2781ID reliable?
The price and inventory of TLV2781ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2781ID is usually 5 days.
3.What payment methods are accepted for TLV2781ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2781ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2781ID?
TLV2781ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2781ID 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 TLV2781ID?
For technical support, including TLV2781ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2781ID requirements.
6.How does Aetrix verify that TLV2781ID is sourced from the original manufacturer or authorized distributors?
All TLV2781ID 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 TLV2781ID meets industry standards.
7.What is the process for return or replacement of TLV2781ID?
All TLV2781ID units undergo pre-shipment inspection (PSI). If there is an issue with TLV2781ID, 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 TLV2781ID part is unused and in its original packaging.
Return procedure for TLV2781ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2781ID Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
