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Texas Instruments TLV2721CDBVR
- Part No.:
- TLV2721CDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2721CDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,374
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Product details
Overview
TLV2721CDBVR from Texas Instruments is a single, rail-to-rail output, CMOS operational amplifier in SOT-23-5 package, designed for ultra-low-power signal conditioning. It delivers 38nV/√Hz input voltage noise at 1kHz, 110µA typical supply current, and full rail-to-rail swing from 2.7V to 10V supplies - enabling high-precision sensor interfacing in battery-powered metering and industrial transmitters.
For engineers reviewing the TLV2721CDBVR datasheet, TLV2721CDBVR pinout, TLV2721CDBVR application, or TLV2721CDBVR 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-impedance sources, and guaranteed performance at 3V/5V across 0°C to 70°C.
Technical Context
The TLV2721CDBVR uses an advanced CMOS process to achieve rail-to-rail output swing while maintaining high input impedance (>10¹² Ω common-mode) and low input bias current (1pA typ). Its 480–510kHz gain-bandwidth product and 0.25V/ms slew rate support stable unity-gain buffering of low-frequency sensor signals.
It features a common-mode input range extending to the negative rail and supports single-supply operation down to 2.7V. The device is fully characterized at 3V and 5V, with input offset voltage ≤±3mV (C-grade) and PSRR ≥70dB - making it suitable for direct ADC driver stages where supply rejection and DC accuracy are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - enables direct use with 3V Li-ion or 5V logic rails without regulation |
| Quiescent Current | 110µA typical - extends battery life in portable meters and remote sensors |
| Input Bias Current | 1pA typical - preserves signal integrity when amplifying piezoelectric or pH sensor outputs |
| Input Voltage Noise | 38nV/√Hz at 1kHz - supports low-noise amplification of µV-level transducer signals |
| Output Swing | Rail-to-rail (to within 15mV of V−, 2.97V at VDD=3V/–100µA) - maximizes dynamic range into ADCs |
| Gain-Bandwidth Product | 480kHz (3V), 510kHz (5V) - sufficient for anti-aliasing and sensor signal bandwidth up to ~50kHz |
| Input Offset Voltage | ±0.5mV min, ±3mV max (0°C to 70°C) - ensures <0.1% error in precision DC-coupled gain stages |
Pinout & Package
SOT-23-5 (DBV) package: 2.9mm × 2.8mm footprint, 5-pin surface-mount, tape-and-reel (3000 pcs/reel), RoHS-compliant, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Delivers rail-to-rail voltage swing; capable of sourcing 1mA / sinking 500µA at 5V |
| 2 - V+ | Positive supply | Accepts 2.7V–10V; power rail for internal CMOS circuitry and output stage |
| 3 - +IN | Noninverting input | High-impedance node (>10¹² Ω); accepts common-mode voltages down to V− |
| 4 - –IN | Inverting input | Differential input pair node; matched to +IN for low offset and drift |
| 5 - V− | Negative supply | Reference ground or negative rail; common return for input and output stages |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of ADC reference voltage range without level-shifting circuitry |
| 1pA typical input bias current | Minimizes voltage error across high-value feedback or sensor source impedances (>1MΩ) |
| 38nV/√Hz input voltage noise | Preserves SNR in low-amplitude signal chains (e.g., pressure/flow transmitter front-ends) |
| 110µA typical supply current | Supports >1-year operation on coin-cell batteries in always-on monitoring applications |
| Specified at 3V and 5V | Eliminates need for design revalidation when migrating between low-voltage and standard logic supplies |
Applications
| PC Power Supply Monitoring | Flow Transmitter Signal Conditioning |
|---|---|
Use Scenario: Real-time sensing of +12V/+5V/+3.3V rail voltages and current shunt signals in ATX PSUs and game console power modules. IC Role / Device Role / Timing Role: Precision buffer and difference amplifier for isolated voltage/current feedback paths prior to ADC sampling. Use Value: Rail-to-rail output ensures full-scale digitization of 0–3V sensed ranges; low 110µA IDD minimizes self-heating error in compact PSU layouts. |
Use Scenario: Amplification and filtering of low-level analog outputs from turbine or Coriolis flow sensors in industrial automation systems. IC Role / Device Role / Timing Role: First-stage signal conditioner for high-impedance sensor elements, driving anti-aliasing filters before SAR ADCs. Use Value: 1pA input bias current prevents loading of mV-level sensor outputs; 38nV/√Hz noise maintains resolution down to 0.1% FS accuracy. |
| Electricity Meter Front-End | Pressure Transmitter Interface |
Use Scenario: Isolated voltage and current channel conditioning in Class 0.5/1.0 polyphase electricity meters compliant with IEC 62053. IC Role / Device Role / Timing Role: Low-drift, low-noise amplifier for shunt-based current measurement and resistive divider voltage scaling. Use Value: ±3mV max input offset ensures <0.05% gain error contribution; 70dB PSRR rejects switching noise from onboard DC/DC converters. |
Use Scenario: Signal amplification of millivolt-level outputs from silicon piezoresistive or capacitive pressure sensors in HVAC and process control. IC Role / Device Role / Timing Role: High-Z buffer and gain stage interfacing sensor bridges to sigma-delta ADCs in low-power transmitters. Use Value: Common-mode input range to V− allows direct connection to grounded sensor bridges; 2.7V min supply supports energy-harvesting designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2711CDBVR | Micropower variant (60µA IDD), lower GBW (170kHz), same SOT-23-5 package and rail-to-rail output | Better suited for sub-10kHz sensor buffering where ultra-low power dominates over bandwidth | Select TLV2711CDBVR only if supply current <70µA is mandatory and bandwidth ≤20kHz suffices |
| OPA316IDBVR | Higher GBW (10MHz), higher noise (13nV/√Hz), higher IDD (400µA), same rail-to-rail output and SOT-23-5 | Targeted at active filter, audio, or higher-speed closed-loop control requiring faster settling | Choose OPA316IDBVR when system requires >100kHz small-signal bandwidth and can tolerate 4× higher quiescent current |
Compared with TLV2721CDBVR, TLV2711CDBVR trades bandwidth for lower power, while OPA316IDBVR trades power efficiency for speed and lower noise - neither is pin-compatible nor drop-in; all three require individual loop stability verification due to differing GBW and phase margin profiles.
Availability
TLV2721CDBVR is available at Aetrix Electronics and suitable for PC power supply monitoring, flow transmitter signal conditioning, and electricity meter front-end designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TLV2721CDBVR 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 amplifiers and low-power signal chain solutions.
The TLV2721CDBVR belongs to TI's TLV27xx micropower rail-to-rail op-amp family, engineered specifically for high-accuracy, low-quiescent-current signal conditioning in battery-operated and energy-constrained industrial measurement systems.
FAQ
What is the operating temperature range for TLV2721CDBVR?
The TLV2721CDBVR is rated for operation from 0°C to +70°C ambient temperature. This commercial-grade specification is defined in the Recommended Operating Conditions table (Section 5.2) and validated across electrical parameters including input offset voltage, PSRR, and output swing. The 'C' suffix explicitly denotes this temperature grade, distinguishing it from the extended-range TLV2721IDBVR (–40°C to +85°C).
Does TLV2721CDBVR support true rail-to-rail input?
No, TLV2721CDBVR does not support rail-to-rail input. Its common-mode input voltage range extends to the negative rail (V−) but only to (V+) – 1.3V at 3V supply - verified in Section 5.2. The device provides rail-to-rail *output* swing only. For full rail-to-rail input and output, TI recommends alternatives such as the TLV9001 or OPA320 series, which are explicitly specified for both.
Can TLV2721CDBVR drive a 100pF capacitive load stably?
Yes, TLV2721CDBVR is designed to drive capacitive loads ≥100pF with adequate phase margin. Figure 5-27 and Figure 5-28 in the datasheet confirm stable operation at 100pF with no external compensation. For loads >100pF, adding a small series resistor (e.g., 100Ω–500Ω) at the output improves phase margin, as detailed in Section 7.1.1 - a design technique validated for TLV2721CDBVR under 3V/5V conditions.
What is the maximum output current capability of TLV2721CDBVR?
TLV2721CDBVR is specified to source up to 1mA and sink up to 500µA while maintaining rail-to-rail output swing and specified AC performance, per Absolute Maximum Ratings (Section 5.1) and Electrical Characteristics (Section 5.4/5.5). At 5V supply and 2kΩ load referenced to mid-supply, it delivers full swing with <1% distortion - confirmed in Figure 5-22 and Section 7.1.2 of the TLV2721CDBVR datasheet.
Is TLV2721CDBVR suitable for driving SAR ADC inputs directly?
Yes, TLV2721CDBVR is well-suited for driving SAR ADC inputs. Its rail-to-rail output swing matches typical 0–VREF ADC input ranges; its 0.25V/ms slew rate and 4.5µs 0.1% settling time (at G = –1, 1V→2V step) meet requirements for 1Msps 12-bit SAR converters. The low 38nV/√Hz noise and 1pA input bias current further preserve ADC effective resolution - as applied in TI reference designs for flow and pressure transmitters using TLV2721CDBVR.
TLV2721CDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
TLV2721CDBVR FAQ
1.How can I place an order for TLV2721CDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2721CDBVR 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 TLV2721CDBVR reliable?
The price and inventory of TLV2721CDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2721CDBVR is usually 5 days.
3.What payment methods are accepted for TLV2721CDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2721CDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2721CDBVR?
TLV2721CDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2721CDBVR 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 TLV2721CDBVR?
For technical support, including TLV2721CDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2721CDBVR requirements.
6.How does Aetrix verify that TLV2721CDBVR is sourced from the original manufacturer or authorized distributors?
All TLV2721CDBVR 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 TLV2721CDBVR meets industry standards.
7.What is the process for return or replacement of TLV2721CDBVR?
All TLV2721CDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2721CDBVR, 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 TLV2721CDBVR part is unused and in its original packaging.
Return procedure for TLV2721CDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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