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Texas Instruments TLV2761CD
- Part No.:
- TLV2761CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2761CD.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:275
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Product details
Overview
TLV2761CD from Texas Instruments is a single-channel, micropower, rail-to-rail input/output operational amplifier with shutdown, designed for ultra-low-voltage operation (1.8 V to 3.6 V), consuming only 20 μA per channel and delivering 500 kHz bandwidth. It features 550 μV input offset voltage, 0.20 V/μs slew rate, and operates across 0°C to 70°C - ideal for battery-powered sensor front-ends and portable medical devices.
For engineers reviewing the TLV2761CD datasheet, TLV2761CD pinout, TLV2761CD application, or TLV2761CD equivalent, this page provides verified electrical specifications, SOT-23-5 package details, shutdown timing behavior (5 μs turn-on), rail-to-rail I/O performance at 1.8 V, and validated alternatives for low-power analog signal conditioning in space-constrained designs.
Technical Context
The TLV2761CD uses CMOS input stage architecture enabling rail-to-rail common-mode input range (−0.2 V to VDD + 0.2 V) and ultralow input bias current (3 pA typical). Its micropower design integrates a dedicated SHDN pin that reduces supply current to 10 nA per channel when asserted low.
It delivers stable unity-gain operation with 63° phase margin into 100 pF loads and supports capacitive load driving up to 10 pF without external compensation. The device is characterized at 1.8 V (end-of-life AA/AAA cell) and 2.4 V (NiMH/NiCd nominal), ensuring predictable performance across battery discharge profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 3.6 V - enables direct operation from two alkaline or NiMH cells without regulation. |
| Supply Current (per channel) | 20 μA typical at 1.8 V - extends battery life in always-on monitoring systems beyond 1 year on coin cells. |
| Shutdown Current | 10 nA per channel - allows multi-second sleep intervals without measurable battery drain. |
| Unity-Gain Bandwidth | 500 kHz - supports DC-coupled ECG, thermistor, and bridge sensor amplification up to audio frequencies. |
| Input Offset Voltage | 550 μV max at 25°C - ensures ≤0.5% error in 1 V full-scale precision measurement circuits. |
| Rail-to-Rail I/O | Input range −0.2 V to VDD+0.2 V; output swings within 25 mV of rails - maximizes dynamic range at 1.8 V supply. |
| Slew Rate | 0.20 V/μs - sufficient for <10 kHz small-signal step response with <1% distortion in sensor interfaces. |
Pinout & Package
TLV2761CD is packaged in a 5-pin SOT-23 (DBV) surface-mount package with exposed pad not electrically connected. Thermal resistance ΘJA = 324°C/W enables operation at ambient temperatures up to 70°C with minimal derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail voltage swing; capable of sourcing/sinking 5 mA at 1.8 V. |
| 2 - GND | Analog ground reference | Must be tied directly to low-impedance system ground plane; shared with shutdown logic ground. |
| 3 - IN+ | Noninverting input | CMOS input with 3 pA bias current; accepts signals down to −0.2 V for level-shifting applications. |
| 4 - VDD | Positive supply | Accepts 1.8–3.6 V; requires local 0.1 μF ceramic + 6.8 μF tantalum decoupling per TI layout guidelines. |
| 5 - IN− | Inverting input | Differential pair input node; matched to IN+ for <550 μV offset; high impedance (>1 TΩ). |
Key Features
| Feature | Design Value |
|---|---|
| Micropower shutdown mode | Reduces IDD to 10 nA/channel - enables >10-year shelf life in IoT endpoint wake-on-event architectures. |
| Rail-to-rail input stage | Supports VICR from −0.2 V to VDD+0.2 V - eliminates need for level-shifting in single-supply 1.8 V systems. |
| Low input bias current | 3 pA typical - permits use with >1 MΩ gain-setting resistors without significant offset drift. |
| Stable into 10 pF loads | 63° phase margin at unity gain - avoids oscillation in capacitive sensor interfaces (e.g., piezoelectric, humidity). |
| Specified at 1.8 V | Full AC/DC specs guaranteed at end-of-cell voltage - removes uncertainty in battery-powered product lifetime validation. |
Applications
| Portable ECG Front-End | Low-Power Thermistor Signal Chain |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier stage with rail-to-rail output swing and micropower shutdown between measurements. Use Value: 20 μA quiescent current enables >6-month operation on CR2032; 550 μV offset maintains <1% gain error over temperature. |
Use Scenario: Conditioning resistance changes from NTC thermistors in battery-operated HVAC sensors. IC Role / Device Role / Timing Role: Precision voltage follower and buffer driving ADC input, with shutdown during 10-s sampling intervals. Use Value: 10 nA shutdown current prevents battery depletion during idle; rail-to-rail I/O captures full thermistor voltage range at 1.8 V. |
| Smoke Detector Analog Front-End | Industrial Wireless Sensor Node |
|
Use Scenario: Amplifying photocurrent from ionization chamber in UL-certified battery smoke alarms. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable shutdown to meet 10-year battery life requirements. Use Value: 3 pA input bias current minimizes dark-current error; 500 kHz GBW supports fast pulse detection while rejecting EMI. |
Use Scenario: Signal conditioning for MEMS accelerometer outputs in LoRaWAN-based structural health monitors. IC Role / Device Role / Timing Role: Low-noise buffer and anti-aliasing filter driver operating from primary lithium thionyl chloride cells. Use Value: 95 nV/√Hz input noise preserves SNR in vibration analysis; 1.8 V min supply matches battery discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2451CD | Higher supply current (23 μA), wider VDD range (2.7–6 V), no shutdown pin | Lacks micropower shutdown; requires ≥2.7 V supply - unsuitable for 1.8 V battery systems | Select only if supply ≥2.7 V and shutdown not required; offers lower 1/f noise than TLV2761CD |
| LPV821IDBVR | Lower supply current (650 nA), 1.6 V min supply, no shutdown, 10 kHz GBW | Ultra-low power but bandwidth-limited - cannot replace TLV2761CD in >10 kHz signal paths | Choose for sub-1 kHz sensor buffering where 500 kHz bandwidth is unnecessary; superior battery longevity |
Compared with TLV2761CD, TLV2451CD trades shutdown capability and 1.8 V operation for slightly better noise performance above 10 kHz, while LPV821IDBVR sacrifices bandwidth and shutdown control to achieve 30× lower quiescent current - making each alternative optimal only in distinct low-power analog contexts.
Availability
TLV2761CD is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, industrial wireless nodes, and smoke alarm systems requiring stable component supply with long-term manufacturability.
Supply support for TLV2761CD 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 chains.
The TLV276x family was engineered specifically for micropower, single-supply, rail-to-rail operation in battery-constrained applications - targeting portable instrumentation, wearables, and energy-harvesting systems.
FAQ
What is the maximum recommended supply voltage for TLV2761CD?
The absolute maximum supply voltage for TLV2761CD 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 and reduced reliability; operation at 3.6 V is supported with full specification compliance including 500 kHz bandwidth and 20 μA supply current.
Does TLV2761CD support true rail-to-rail output swing at 1.8 V?
Yes, TLV2761CD delivers rail-to-rail output swing at 1.8 V: VOH ≥ 1.77 V (within 23 mV of VDD) and VOL ≤ 25 mV (within 25 mV of GND) at 100 μA load, as specified in the Electrical Characteristics table. This enables full utilization of the 1.8 V supply in ADC driver and comparator interface applications.
How does the shutdown function behave on TLV2761CD?
TLV2761CD has no dedicated SHDN pin - it is the single-channel variant without shutdown. The TLV2760CD includes shutdown; TLV2761CD does not. Therefore, TLV2761CD operates continuously when powered and cannot enter ultralow-current shutdown mode. For shutdown capability, TLV2760CD or TLV2762IDGK (dual) must be selected.
What is the input common-mode voltage range for TLV2761CD?
The input common-mode voltage range for TLV2761CD is −0.2 V to VDD + 0.2 V at 25°C, confirmed across the full 0°C to 70°C commercial temperature range. This allows the device to accept inputs below ground (e.g., transducer signals referenced to negative bias) and above VDD - critical for interfacing with unbuffered sensors in single-supply systems.
Is TLV2761CD suitable for driving ADC inputs directly?
Yes, TLV2761CD is well-suited for driving SAR and delta-sigma ADC inputs: its rail-to-rail output swing, 550 μV offset, 95 nV/√Hz noise, and ability to source 5 mA ensure accurate settling into typical ADC input capacitances (≤20 pF). Layout best practices (local 0.1 μF decoupling, short traces) are required to maintain 12-bit+ effective resolution.
TLV2761CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
TLV2761CD FAQ
1.How can I place an order for TLV2761CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2761CD 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 TLV2761CD reliable?
The price and inventory of TLV2761CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2761CD is usually 5 days.
3.What payment methods are accepted for TLV2761CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2761CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2761CD?
TLV2761CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2761CD 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 TLV2761CD?
For technical support, including TLV2761CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2761CD requirements.
6.How does Aetrix verify that TLV2761CD is sourced from the original manufacturer or authorized distributors?
All TLV2761CD 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 TLV2761CD meets industry standards.
7.What is the process for return or replacement of TLV2761CD?
All TLV2761CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2761CD, 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 TLV2761CD part is unused and in its original packaging.
Return procedure for TLV2761CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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