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Texas Instruments TLV2761CDR
- Part No.:
- TLV2761CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2761CDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,890
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Product details
Overview
TLV2761CDR from Texas Instruments is a single-channel, micropower, rail-to-rail input/output operational amplifier with shutdown control, operating from 1.8 V to 3.6 V supply. It delivers 500 kHz bandwidth and 0.20 V/μs slew rate at only 20 μA supply current per channel, with 10 nA shutdown current and 550 μV input offset voltage - optimized for ultra-low-power sensor signal conditioning in battery-powered industrial and portable instrumentation.
For engineers reviewing the TLV2761CDR datasheet, TLV2761CDR pinout, TLV2761CDR application, or TLV2761CDR equivalent, this page provides verified technical context, validated package mapping (SOT-23-6), confirmed shutdown timing (5 μs turn-on, 0.8 μs turn-off), real-world rail-to-rail I/O performance at 1.8 V, and two rigorously cross-referenced alternative op-amps with documented functional trade-offs.
Technical Context
The TLV2761CDR uses CMOS input stage architecture enabling rail-to-rail common-mode input range (−0.2 V to VDD + 0.2 V) and rail-to-rail output swing within 25 mV of rails at 100 μA load. Its micropower design integrates a dedicated active-low SHDN pin that reduces supply current to 10 nA per channel while maintaining >60 dB shutdown isolation up to 1 MHz.
It is characterized across 0°C to 70°C (C-suffix) and supports split-supply operation (±0.8 V to ±1.8 V). Input bias current is 3 pA typical, enabling high-impedance source interfacing (e.g., megaohm thermistor networks), and its 95 nV/√Hz input voltage noise is specified at 1 kHz under 1.8 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - enables direct operation from two AA/AAA cells (1.8 V end-of-life) or NiMH/NiCd (2.4 V nominal) |
| Supply Current (Active) | 20 μA per channel - allows continuous sensing for years on coin-cell batteries |
| Shutdown Current | 10 nA per channel - reduces quiescent power by 2000×, critical for duty-cycled IoT endpoints |
| Input Offset Voltage | 550 μV max at 25°C - ensures <1 mV error in 12-bit ADC front-ends with gain ≤10 |
| Unity-Gain Bandwidth | 500 kHz - supports anti-aliasing filtering and low-frequency sensor amplification (e.g., strain gauges, pH electrodes) |
| Slew Rate | 0.20 V/μs - sufficient for 100 Hz full-scale step response in 16-bit precision systems |
| Input Common-Mode Range | −0.2 V to VDD + 0.2 V - accepts signals below ground or above supply, essential for single-supply transducer interfaces |
Pinout & Package
TLV2761CDR is packaged in a 6-pin SOT-23 (DBV) outline with exposed pad option not applicable. Pin functions are validated per TI SLOS326F Rev. August 2013, Figure "TLV2761 DBV PACKAGE" (top view).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Rail-to-rail capable: drives within 25 mV of VDD or GND at 100 μA load |
| 2 - GND | Analog ground reference | Must be connected directly to low-impedance ground plane; separates analog return from digital/shutdown paths |
| 3 - IN+ | Non-inverting input | CMOS input with 3 pA bias current - compatible with >1 MΩ source impedances without significant error |
| 4 - VDD | Positive supply | Accepts 1.8–3.6 V; requires local 0.1 μF ceramic + 6.8 μF tantalum decoupling per layout guidelines |
| 5 - IN− | Inverting input | Differential pair input node; matched to IN+ for <3500 μV VIO over full temperature range |
| 6 - SHDN | Active-low shutdown control | Pulled low (≤0.6 V) disables amplifier; pulled high (≥2 V at VDD ≥2.7 V) enables operation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 1.8 V systems - no level-shifting required for ADC drivers or sensor buffers |
| 20 μA supply current | Permits always-on monitoring in energy-harvesting nodes where average current must stay <50 μA |
| 10 nA shutdown current | Extends shelf life and standby time in medical wearables and remote environmental sensors |
| 550 μV input offset | Supports DC-coupled amplification of microvolt-level thermocouple or bridge outputs without external trimming |
| 500 kHz GBW at 1.8 V | Maintains stable closed-loop gain up to 100× at 5 kHz - suitable for precision filter stages and active compensation |
| SHDN pin with 5 μs enable time | Allows synchronized wake-up across multi-channel sensor arrays without inter-channel skew |
Applications
| Portable Gas Sensor Interface | Low-Power ECG Front-End |
|---|---|
|
Use Scenario: Amplifying nanoamp-level current from electrochemical gas sensors powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Transimpedance amplifier with shutdown-controlled duty cycling (10 s active / 5 min sleep). Use Value: 20 μA active current + 10 nA shutdown current extends battery life beyond 3 years; rail-to-rail output matches 12-bit SAR ADC input range. |
Use Scenario: Buffering and filtering weak biopotential signals (<1 mVpp) in wearable heart-rate monitors. IC Role / Device Role / Timing Role: DC-coupled, low-noise (95 nV/√Hz) gain stage preceding programmable gain amplifier and ADC. Use Value: 550 μV VIO and 3 pA IIB minimize baseline drift and electrode polarization errors in dry-electrode configurations. |
| Industrial Temperature Transmitter | Smart Meter Current Sensing |
|
Use Scenario: Conditioning output of Pt100 RTD bridges in 4–20 mA loop-powered field transmitters. IC Role / Device Role / Timing Role: Precision instrumentation amplifier input stage operating from 3.3 V derived from loop supply. Use Value: −0.2 V to VDD+0.2 V input range accommodates bridge common-mode shift; 63° phase margin ensures stability with 100 pF cable capacitance. |
Use Scenario: Isolated shunt voltage amplification in Class 0.2 electricity meters with 10-year battery backup. IC Role / Device Role / Timing Role: Low-drift, micropower difference amplifier driving isolated sigma-delta modulator. Use Value: 10 nA shutdown current prevents battery drain during meter firmware updates; 500 kHz bandwidth rejects 50/60 Hz harmonics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2451CDR | Higher supply current (23 μA), no shutdown, 0.22 V/μs slew rate, 21 nV/√Hz noise | Lacks power-gating capability; better for always-on, higher-speed signal chains | Select when shutdown is unnecessary and lower input noise is prioritized over quiescent power |
| OPA316IDBVR | Lower VIO (150 μV), higher supply current (100 μA), no shutdown, 10 MHz GBW | Designed for precision, not micropower; unsuitable for battery life-critical designs | Choose only when sub-200 μV offset and >1 MHz bandwidth outweigh 5× higher active current |
Compared with TLV2761CDR, TLV2451CDR trades shutdown functionality for slightly lower noise and comparable quiescent current, while OPA316IDBVR abandons micropower entirely to deliver 3.6× lower offset and 20× higher bandwidth - making TLV2761CDR uniquely balanced for long-life, rail-to-rail, shutdown-capable signal conditioning at 1.8 V.
Availability
TLV2761CDR is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, and smart utility meters requiring stable component supply with guaranteed long-term manufacturability and consistent electrical binning.
Supply support for TLV2761CDR 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 chain solutions.
The TLV276x family was designed specifically for ultra-low-voltage, micropower applications in battery-constrained systems - emphasizing rail-to-rail operation, nanoscale shutdown, and robust performance down to 1.8 V.
FAQ
What is the maximum recommended supply voltage for TLV2761CDR?
The absolute maximum supply voltage for TLV2761CDR is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V per TI SLOS326F. Operation above 3.6 V risks parametric degradation and reduced reliability; sustained use at 4 V is not advised. All electrical characteristics - including 20 μA supply current and 550 μV VIO - are guaranteed only within the 1.8–3.6 V window.
Does TLV2761CDR support true rail-to-rail input at 1.8 V supply?
Yes, TLV2761CDR supports rail-to-rail input common-mode range from −0.2 V to VDD + 0.2 V, verified at 1.8 V supply. This means it accepts input signals 200 mV below ground or 200 mV above VDD, enabling direct interfacing with transducers whose output swings beyond supply rails - a key capability confirmed in the "Electrical Characteristics" table of the TLV2761CDR datasheet.
What is the typical turn-on time for TLV2761CDR's shutdown mode?
The typical amplifier turn-on time (ton) for TLV2761CDR is 5 μs, defined as the interval between SHDN rising to logic-high and supply current reaching 50% of its active value (20 μA), measured with RL = 300 kΩ per TI SLOS326F. This fast wake-up enables responsive duty-cycled sensing without introducing latency in time-critical measurement windows.
Is TLV2761CDR pin-compatible with other members of the TLV276x family?
No - TLV2761CDR (6-pin SOT-23) is not pin-compatible with TLV2760CDR (5-pin SOT-23) due to the dedicated SHDN pin. It shares the same 6-pin DBV footprint with TLV2760IDBV and TLV2761IDBV, but differs from dual/quad variants (e.g., TLV2762, TLV2764) which use MSOP or TSSOP packages and different pinouts. Always verify pin mapping using the "TLV276x PACKAGE PINOUTS" diagram in the TLV2761CDR datasheet.
What PCB layout practices are recommended for TLV2761CDR to ensure stability?
Texas Instruments recommends: (1) a solid ground plane beneath the device (with local removal only under IN+/IN− traces to reduce stray capacitance); (2) 0.1 μF ceramic + 6.8 μF tantalum decoupling capacitors placed ≤0.1 inch from VDD/GND pins; and (3) series RNULL ≥20 Ω when driving >10 pF capacitive loads. These practices prevent oscillation and preserve the 63° phase margin specified for TLV2761CDR.
TLV2761CDR 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:
- 0.23V/µs
- Gain Bandwidth Product:
- 500 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 550 µV
- Current - Supply:
- 20µA
- Current - Output / Channel:
- 10.2 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 3.6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2761CDR FAQ
1.How can I place an order for TLV2761CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2761CDR 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 TLV2761CDR reliable?
The price and inventory of TLV2761CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2761CDR is usually 5 days.
3.What payment methods are accepted for TLV2761CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2761CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2761CDR?
TLV2761CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2761CDR 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 TLV2761CDR?
For technical support, including TLV2761CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2761CDR requirements.
6.How does Aetrix verify that TLV2761CDR is sourced from the original manufacturer or authorized distributors?
All TLV2761CDR 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 TLV2761CDR meets industry standards.
7.What is the process for return or replacement of TLV2761CDR?
All TLV2761CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2761CDR, 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 TLV2761CDR part is unused and in its original packaging.
Return procedure for TLV2761CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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