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Texas Instruments TLV2721CDBVT
- Part No.:
- TLV2721CDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2721CDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:401
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Product details
Overview
TLV2721CDBVT 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 swing (to within 12mV of negative rail and 2.97V from 3V positive rail). It is optimized for battery-powered signal conditioning in high-impedance sensor interfaces such as piezoelectric transducers.
For engineers reviewing the TLV2721CDBVT datasheet, TLV2721CDBVT pinout, TLV2721CDBVT application, or TLV2721CDBVT equivalent, key selection criteria include micropower operation (<150µA max), rail-to-rail output drive into 2kΩ loads, low-input-bias-current (1pA typ) compatibility with high-Z sources, and guaranteed performance across 2.7V–10V supply range.
Technical Context
The TLV2721CDBVT employs an advanced CMOS process enabling both high input impedance (>10¹² Ω common-mode) and rail-to-rail output stage capable of sourcing 1mA and sinking 500µA at 5V. Its gain-bandwidth product is 480kHz at 3V and 510kHz at 5V, with 0.25V/ms slew rate and 53° phase margin into 100pF capacitive load.
It features fully specified operation from 0°C to 70°C (C-grade), input common-mode range extending to the negative rail, and PSRR of 70dB (min) at 3V. The device supports stable operation driving >100pF loads using optional series nulling resistors, and exhibits ±0.5mV input offset voltage (max) over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - enables direct use in 3V and 5V systems without level-shifting |
| Quiescent Current | 100–150µA (typ/max) - supports multi-year battery life in remote sensing nodes |
| Input Bias Current | 1pA (typ) - preserves signal integrity when amplifying from >1MΩ piezoelectric or pH sensors |
| Input Voltage Noise | 38nV/√Hz @ 1kHz - suitable for low-level analog front-end conditioning before ADCs |
| Output Swing | To within 12mV of V− and 2.97V of V+ (at 3V) - maximizes dynamic range in single-supply data acquisition |
| Gain-Bandwidth Product | 480kHz @ 3V - sufficient for anti-aliasing and sensor signal filtering up to ~50kHz |
| Input Offset Voltage | ±0.5mV (max, 0°C–70°C) - reduces DC error in precision DC-coupled measurement paths |
Pinout & Package
SOT-23-5 (DBV) package: 2.9mm × 2.8mm footprint, 5.6mm² total area - occupies one-third the board space of SOIC-8 and enables placement adjacent to high-impedance sensors to minimize trace-induced noise pickup.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Capable of rail-to-rail swing; drives 2kΩ loads with <1% THD+N at 20kHz |
| 2 (V+) | Positive supply | Accepts 2.7V–10V; PSRR ≥70dB ensures immunity to supply ripple |
| 3 (+IN) | Noninverting input | High-impedance node (10¹² Ω); accepts common-mode voltages down to V− |
| 4 (−IN) | Inverting input | Differential input with ±0.5mV offset; supports unity-gain stable configurations |
| 5 (V−) | Negative supply | Reference for single-supply operation; common-mode range includes this rail |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of ADC input range in 3V systems without external level-shifting circuitry |
| 1pA typical input bias current | Minimizes voltage error across high-value feedback networks and preserves signal fidelity from piezoresistive elements |
| 38nV/√Hz input voltage noise | Supports accurate amplification of microvolt-level signals from thermocouples or strain gauges |
| 110µA typical supply current | Permits continuous operation in coin-cell–powered IoT endpoints with >5-year battery lifetime |
| Stable into 100pF capacitive loads | Eliminates need for external isolation resistors when driving ADC sample-and-hold inputs directly |
Applications
| PC Power Supply Monitoring | Flow Transmitter Signal Conditioning |
|---|---|
Use Scenario: Real-time monitoring of +3.3V and +5V rails in desktop PC power supplies using resistor-divider feedback networks. IC Role / Device Role / Timing Role: Precision buffer and level-shifter for voltage sense signals feeding into microcontroller ADCs. Use Value: Rail-to-rail output ensures full-scale ADC utilization; 1pA input bias prevents loading of high-ratio dividers. | Use Scenario: Amplifying low-amplitude AC signals from turbine-based flow sensors in industrial metering equipment. IC Role / Device Role / Timing Role: Low-noise, high-Z preamplifier stage preceding bandpass filtering and envelope detection. Use Value: 38nV/√Hz noise floor preserves signal-to-noise ratio; 2.7V–10V supply range accommodates wide input bus variations. |
| Pressure Transmitter Front-End | Electricity Meter Sensor Interface |
Use Scenario: Conditioning mV-level bridge outputs from MEMS pressure sensors in HVAC control modules. IC Role / Device Role / Timing Role: Instrumentation-grade gain stage with matched input impedance and low drift. Use Value: ±0.5mV max offset and ±1µV/°C drift ensure stable calibration over 0°C–70°C operating range. | Use Scenario: Isolating and scaling shunt-resistor voltage drops in Class 0.5 electricity meters with optical isolation barriers. IC Role / Device Role / Timing Role: Low-power, high-accuracy current-sense amplifier feeding isolated sigma-delta ADCs. Use Value: 110µA quiescent current minimizes self-heating error in sealed meter enclosures; rail-to-rail output matches ADC reference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2711CDBVT | Micropower variant (85µA typ), lower GBW (170kHz), same SOT-23-5 package and pinout | Better suited for ultra-low-power wake-on-event sensor nodes where bandwidth <20kHz suffices | Select TLV2711CDBVT only if supply current is primary constraint and 480kHz GBW is unnecessary |
| OPA316IDBVR | Higher performance: 10MHz GBW, 6V/µs slew rate, 11nV/√Hz noise; SOT-23-5 but different pin mapping (V− on Pin 2, V+ on Pin 4) | Required for active filters, higher-speed sensor interfaces, or precision DAC output buffers | OPA316IDBVR demands PCB redesign due to non-compatible pinout; not drop-in despite same package outline |
Compared with TLV2721CDBVT, TLV2711CDBVT trades bandwidth and drive strength for lower current draw, while OPA316IDBVR offers superior speed and noise at the cost of power and pin compatibility-making TLV2721CDBVT the optimal balance for general-purpose, battery-aware signal conditioning.
Availability
TLV2721CDBVT is available at Aetrix Electronics and suitable for PC power supply monitoring, flow transmitter signal conditioning, and electricity meter sensor interface applications requiring stable component supply and long-term production continuity.
Supply support for TLV2721CDBVT 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, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV2721CDBVT belongs to TI's low-power precision op-amp portfolio, designed specifically for energy-constrained, high-impedance sensor signal chains in battery-operated and single-supply instrumentation systems.
FAQ
What is the maximum capacitive load the TLV2721CDBVT can drive without external compensation?
The TLV2721CDBVT is characterized to remain stable driving ≥100pF capacitive loads with adequate phase margin (53°) when configured with unity gain and 2kΩ load. For loads exceeding 100pF, a small series resistor (e.g., 100Ω–500Ω) at the output improves stability by introducing a zero that counteracts the pole formed by the load capacitance. This behavior is documented in Figure 5-27 and Figure 5-28 of the TLV2721CDBVT datasheet.
Does the TLV2721CDBVT support true rail-to-rail input common-mode range?
No-the TLV2721CDBVT supports rail-to-rail *output* swing and includes the *negative rail* in its input common-mode range (VIC = V− to V+ − 1.3V), but does not accept voltages within 1.3V of the positive rail. At 3V supply, the usable input common-mode range is –0.3V to +1.7V; at 5V, it extends to –0.3V to +3.5V. This limitation is explicitly defined in Section 5.2 Recommended Operating Conditions of the TLV2721CDBVT datasheet.
What is the guaranteed input offset voltage specification for TLV2721CDBVT over temperature?
The TLV2721CDBVT (C-grade) guarantees input offset voltage of ±0.5mV maximum over the full operating temperature range of 0°C to 70°C. This value is specified in Table 5.4 Electrical Characteristics at VS = 3V and Table 5.5 at VS = 5V. The typical offset is ±3mV, and drift is ±1µV/°C-both confirmed across production lots per note (1) in the electrical characteristics tables.
Can TLV2721CDBVT operate from a 2.7V single supply while maintaining rail-to-rail output?
Yes-TLV2721CDBVT is fully specified for 2.7V single-supply operation. At 2.7V, it delivers rail-to-rail output swing: to within 15mV of V− and to at least 2.6V from V+ (per Table 5.4, VO specifications under "To negative rail" and "To positive rail"). This capability is validated across temperature and load conditions and forms the basis of its suitability for coin-cell and Li-ion–powered applications.
Is TLV2721CDBVT pin-compatible with other SOT-23-5 op-amps like MCP6001 or LMV321?
No-TLV2721CDBVT uses TI's standard SOT-23-5 pinout (Pin 1=OUT, Pin 2=V+, Pin 3=+IN, Pin 4=−IN, Pin 5=V−), which differs from Microchip's MCP6001 (Pin 1=OUT, Pin 2=−IN, Pin 3=+IN, Pin 4=GND, Pin 5=V+) and TI's own LMV321 (same pinout as TLV2721CDBVT but different internal architecture and specs). While LMV321 shares the pinout, TLV2721CDBVT offers lower input bias current (1pA vs 100nA) and lower noise-making direct substitution invalid without circuit revalidation.
TLV2721CDBVT 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV2721CDBVT FAQ
1.How can I place an order for TLV2721CDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2721CDBVT 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 TLV2721CDBVT reliable?
The price and inventory of TLV2721CDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2721CDBVT is usually 5 days.
3.What payment methods are accepted for TLV2721CDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2721CDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2721CDBVT?
TLV2721CDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2721CDBVT 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 TLV2721CDBVT?
For technical support, including TLV2721CDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2721CDBVT requirements.
6.How does Aetrix verify that TLV2721CDBVT is sourced from the original manufacturer or authorized distributors?
All TLV2721CDBVT 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 TLV2721CDBVT meets industry standards.
7.What is the process for return or replacement of TLV2721CDBVT?
All TLV2721CDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV2721CDBVT, 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 TLV2721CDBVT part is unused and in its original packaging.
Return procedure for TLV2721CDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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