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Texas Instruments TLV2721IDBVT
- Part No.:
- TLV2721IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2721IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:282
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Product details
Overview
TLV2721IDBVT from Texas Instruments is a single, rail-to-rail output, very low-power CMOS operational amplifier in a 5-pin SOT-23 package. It delivers 38nV/√Hz input voltage noise at 1kHz, 110µA typical supply current, and full rail-to-rail output swing down to 12mV from the negative rail (at 5V) and 2.97V from the positive rail (at 3V). It is optimized for battery-powered signal conditioning of high-impedance sources such as piezoelectric transducers in remote sensing systems.
For engineers reviewing the TLV2721IDBVT datasheet, TLV2721IDBVT pinout, TLV2721IDBVT application, or TLV2721IDBVT equivalent, key selection criteria include micropower operation (<150µA max), rail-to-rail output capability with 0.25V/ms slew rate, wide 2.7V–10V supply range, and verified performance at 3V/5V for low-voltage industrial and metering designs.
Technical Context
The TLV2721IDBVT employs an advanced CMOS process enabling high input impedance (>10¹²Ω common-mode resistance), low input bias current (1pA typ), and rail-to-rail output stage capable of sourcing 1mA and sinking 500µA at 5V. Its gain-bandwidth product is 480kHz (3V) / 510kHz (5V), with phase margin of 53° and gain margin of 12dB under standard 2kΩ/100pF load conditions.
It operates across –40°C to +85°C (I-grade), supports common-mode input voltage from VDD– to (VDD+ – 1.3V), and achieves 77dB typical CMRR and 95dB PSRR. Input offset voltage is ±3mV max over temperature, with ±1µV/°C drift - enabling precision DC-coupled amplification without external trimming in portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - enables direct operation from single-cell Li-ion (3.0–3.6V), 3.3V logic rails, or 5V legacy systems without LDOs. |
| Quiescent Current | 110µA typical, 150µA max - allows >1-year battery life in coin-cell–powered sensor nodes with 10-second wake-up intervals. |
| Input Voltage Noise | 38nV/√Hz at 1kHz - preserves SNR in low-level transducer interfaces (e.g., pressure/flow sensors) without requiring additional filtering. |
| Rail-to-Rail Output Swing | Within 12mV of VDD– and 120mV of VDD+ at 500µA load - maximizes dynamic range when driving 12-bit ADCs referenced to same supply. |
| Input Bias Current | 1pA typical - avoids significant voltage error in high-Z networks (e.g., >10MΩ feedback paths or pH electrode buffers). |
| Gain-Bandwidth Product | 480kHz at 3V - supports stable unity-gain buffering of DC–20kHz signals (e.g., audio preamps, sensor outputs) with minimal phase lag. |
| Common-Mode Input Range | Extends to VDD– - permits direct sensing of ground-referenced signals (e.g., shunt current monitoring) without level-shifting circuitry. |
Pinout & Package
TLV2721IDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm - occupying one-third the PCB area of an SOIC-8, enabling placement directly adjacent to transducers to minimize EMI pickup.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; capable of sourcing 1mA / sinking 500µA into resistive loads at 5V. |
| 2 (V+) | Positive supply | Accepts 2.7V–10V; connects to main system rail (e.g., 3.3V or 5V); decoupling capacitor required within 1cm. |
| 3 (+IN) | Noninverting input | High-impedance node (10¹²Ω); used for reference-based sensing or unity-gain buffer configurations. |
| 4 (–IN) | Inverting input | High-impedance node; accepts feedback network; differential input voltage limited to ±VDD. |
| 5 (V–) | Negative supply | Typically connected to GND in single-supply operation; defines lower rail for common-mode and output swing limits. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of ADC input range in 3V/5V systems - eliminates need for level-shifting or dual supplies in data acquisition front-ends. |
| 1pA input bias current | Permits use with ultra-high-impedance sources (e.g., piezoelectric accelerometers, pH electrodes) without significant DC error or signal attenuation. |
| 38nV/√Hz input voltage noise | Supports clean amplification of µV-level sensor outputs (e.g., strain gauges, thermopiles) without degrading system noise floor. |
| 110µA quiescent current | Reduces thermal drift and extends battery life in always-on monitoring devices - validated for continuous operation at 3V and 5V. |
| –40°C to +85°C operating range | Qualified for industrial environments including electricity meters, flow transmitters, and merchant power supplies where ambient temperature varies widely. |
Applications
| PC Power Supply Monitoring | Flow Transmitter Signal Conditioning |
|---|---|
Use Scenario: Real-time voltage/current regulation feedback in ATX-compliant PC PSUs and game console power modules. IC Role / Device Role / Timing Role: Precision difference amplifier in isolated sense circuitry, converting shunt voltage to ADC-compatible level. Use Value: Rail-to-rail output ensures full-scale ADC utilization across 3.3V/5V/12V rails; low 110µA IDD minimizes self-heating in densely packed PSU control boards. | Use Scenario: Amplifying low-amplitude AC signals from turbine or ultrasonic flow sensors in industrial automation. IC Role / Device Role / Timing Role: Low-noise, high-Z buffer and gain stage preceding 12-bit SAR ADC in transmitter analog front-end. Use Value: 38nV/√Hz noise floor preserves signal integrity; 1pA IIB prevents loading of high-impedance sensor elements; 3V operation aligns with LP microcontroller supply. |
| Pressure Transmitter Interface | Electricity Meter Analog Front-End |
Use Scenario: Conditioning mV-level bridge outputs from MEMS or piezoresistive pressure sensors in HVAC and process control systems. IC Role / Device Role / Timing Role: Instrumentation amplifier input stage (with external resistors) providing gain and common-mode rejection before sigma-delta ADC. Use Value: Common-mode input range extending to VDD– allows direct connection to grounded bridge midpoints; rail-to-rail output drives ADC reference without headroom loss. | Use Scenario: Isolated current/voltage sensing in Class 0.5 and 1.0 polyphase electricity meters compliant with IEC 62053. IC Role / Device Role / Timing Role: Anti-aliasing filter driver and programmable gain amplifier in metrology ASIC interface path. Use Value: 77dB CMRR rejects supply ripple and EMI in noisy meter environments; 2.7V–10V supply range accommodates auxiliary 3.3V and 5V meter rails; -40°C to +85°C rating meets industrial metering requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2711IDBVT | Micropower variant (65µA IDD), lower GBW (170kHz), higher input offset (±5mV), no rail-to-rail output - limited dynamic range. | Better suited for ultra-low-power wake-up circuits where bandwidth <10kHz suffices; not recommended for ADC driving or fast-signal buffering. | Select TLV2711IDBVT only when supply current is primary constraint and output swing beyond 80% of rail is unnecessary. |
| OPA316IDBVT | Higher performance: 10MHz GBW, 1.5V/ms slew rate, 11nV/√Hz noise, but 400µA IDD - 3.6× higher quiescent current. | Targeted at higher-speed applications (e.g., active filters, audio line drivers); unsuitable for multi-year battery life requirements. | Choose OPA316IDBVT when bandwidth >1MHz or noise <15nV/√Hz is mandatory; avoid if system budget restricts average current to <200µA. |
Compared with TLV2721IDBVT, TLV2711IDBVT trades bandwidth and rail-to-rail output for lower power, while OPA316IDBVT sacrifices efficiency for speed and noise performance - making TLV2721IDBVT the optimal balance for 3V/5V industrial sensor interfaces requiring both precision and longevity.
Availability
TLV2721IDBVT is available at Aetrix Electronics and suitable for electricity metering, flow transmitter design, and PC power supply monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2721IDBVT 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 company headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and consumer markets.
The TLV2721IDBVT belongs to TI's low-power precision op-amp portfolio, engineered specifically for battery-operated and energy-conscious industrial measurement systems where rail-to-rail output, micropower consumption, and low-noise signal integrity are jointly critical.
FAQ
What is the maximum operating temperature range for TLV2721IDBVT?
The TLV2721IDBVT is rated for operation from –40°C to +85°C, meeting industrial temperature requirements. This specification is confirmed in Section 5.2 (Recommended Operating Conditions) of the official TI datasheet SLOS197B, and applies to the 'I' grade version denoted by the 'I' in the part number. The device maintains specified electrical performance-including input offset voltage, CMRR, and output swing-across this full range.
Does TLV2721IDBVT support true rail-to-rail input common-mode range?
No, TLV2721IDBVT does not support rail-to-rail input common-mode range. Its common-mode input voltage range extends to the negative rail (VDD–) but only up to (VDD+ – 1.3V) at 25°C - meaning it cannot accept inputs within 1.3V of the positive supply. However, its output is fully rail-to-rail, swinging within 12mV of VDD– and 120mV of VDD+ at 500µA load. This asymmetry is explicitly documented in Sections 5.2 and 5.4 of the TLV2721IDBVT datasheet.
Can TLV2721IDBVT drive a 100pF capacitive load stably?
Yes, TLV2721IDBVT is designed to drive capacitive loads ≥100pF while maintaining stability. Figure 5-27 and Figure 5-28 in the TI datasheet SLOS197B demonstrate stable step response with 100pF, 500pF, and 1nF loads. For optimal phase margin, TI recommends adding a small series resistor (Rnull) between the output and load - e.g., 100Ω for 100pF - which introduces a zero to counteract the pole formed by the load capacitance and output impedance.
What is the typical input offset voltage of TLV2721IDBVT at 25°C and 5V supply?
The typical input offset voltage of TLV2721IDBVT at 25°C and 5V supply is ±3mV, with a maximum of ±3mV over the full –40°C to +85°C temperature range for the 'I' grade. This value is specified in Section 5.5 (Electrical Characteristics at VS = 5V) of the TI datasheet SLOS197B. The offset voltage drift is ±1µV/°C, ensuring predictable DC error accumulation across temperature gradients in precision measurement applications.
Is TLV2721IDBVT pin-compatible with other SOT-23 op-amps like TLV2371 or OPA316?
No, TLV2721IDBVT is not pin-compatible with TLV2371 or OPA316. While all three use 5-pin SOT-23 packages, their pinouts differ: TLV2721IDBVT uses Pin 1=OUT, Pin 2=V+, Pin 3=+IN, Pin 4=–IN, Pin 5=V–; TLV2371 uses Pin 1=OUT, Pin 2=–IN, Pin 3=+IN, Pin 4=GND, Pin 5=V+; OPA316 uses Pin 1=NC, Pin 2=–IN, Pin 3=+IN, Pin 4=GND, Pin 5=V+. Swapping these parts requires PCB layout revision - confirmed by TI's official package drawings and pin function tables.
TLV2721IDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.25V/µs
- Gain Bandwidth Product:
- 510 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 110µA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV2721IDBVT FAQ
1.How can I place an order for TLV2721IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2721IDBVT 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 TLV2721IDBVT reliable?
The price and inventory of TLV2721IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2721IDBVT is usually 5 days.
3.What payment methods are accepted for TLV2721IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2721IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2721IDBVT?
TLV2721IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2721IDBVT 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 TLV2721IDBVT?
For technical support, including TLV2721IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2721IDBVT requirements.
6.How does Aetrix verify that TLV2721IDBVT is sourced from the original manufacturer or authorized distributors?
All TLV2721IDBVT 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 TLV2721IDBVT meets industry standards.
7.What is the process for return or replacement of TLV2721IDBVT?
All TLV2721IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV2721IDBVT, 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 TLV2721IDBVT part is unused and in its original packaging.
Return procedure for TLV2721IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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