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Texas Instruments TLV2221IDBVT
- Part No.:
- TLV2221IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2221IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,100
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Product details
Overview
TLV2221IDBVT from Texas Instruments is a single rail-to-rail output, very low-power operational amplifier in a 5-pin SOT-23 package. It delivers 130µA typical supply current, 1.1MHz gain-bandwidth product, and rail-to-rail output swing (±0.015V from rails at 3V) for high dynamic range in battery-powered signal conditioning. It is used in piezoelectric transducer interfaces and handheld sensor front-ends.
For engineers reviewing the TLV2221IDBVT datasheet, TLV2221IDBVT pinout, TLV2221IDBVT application, or TLV2221IDBVT equivalent, key selection criteria include ultra-low quiescent current (130µA), rail-to-rail output capability, ±10pA input bias current, 3–10V supply range, and SOT-23 footprint compatibility with space-constrained analog signal chains.
Technical Context
The TLV2221IDBVT uses Advanced LinCMOS™ process technology to achieve high input impedance (>6TΩ common-mode resistance) and low noise (30nV/√Hz at 1kHz) while maintaining rail-to-rail output swing across 3V and 5V operation. Its input stage includes negative rail–inclusive common-mode range (down to VDD−), enabling direct sensing of ground-referenced signals.
It features a unity-gain stable architecture with 4.5V/µs slew rate and 1.1MHz gain-bandwidth product, optimized for low-distortion (<0.15% THD+N at AV=1, 20kHz) small-signal amplification in single-supply configurations interfacing with 12-bit ADCs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - supports direct operation from single Li-ion (3.0–4.2V) or dual AA (3V) batteries without regulation. |
| Quiescent Current | 130µA typical - enables >1-year battery life in always-on remote sensors drawing <10µA average system current. |
| Input Bias Current | ±10pA typical - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors (>1MΩ source Z). |
| Output Swing | Rail-to-rail (to within 15mV of rails at 3V/50µA) - maximizes ADC input voltage range and SNR in 3V systems. |
| Gain-Bandwidth Product | 1.1MHz - sufficient for anti-aliasing filters, sensor gain stages, and buffered reference outputs up to ~100kHz. |
| Input Offset Voltage | ±0.3mV max - ensures ≤0.01% gain error in precision 12-bit measurement paths with 1V full-scale. |
| Common-Mode Input Range | Includes negative rail (VDD−) - allows direct amplification of 0V-referenced transducer outputs without level-shifting circuitry. |
Pinout & Package
The TLV2221IDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90mm × 1.60mm, occupying one-third the PCB area of an SOIC-8. Its pinout is optimized for minimal trace coupling: IN+ and IN− are separated by GND; OUT and IN− share the same package end to simplify feedback routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN+ | Non-inverting input | High-impedance node (6TΩ) for connecting to high-Z sources; referenced to GND or negative rail. |
| 2 - VDD−/GND | Ground or negative supply | Reference plane for input common-mode range and output swing; must be low-impedance for noise immunity. |
| 3 - IN− | Inverting input | Feedback node; placed adjacent to OUT (pin 4) to minimize parasitic inductance in closed-loop configurations. |
| 4 - OUT | Amplifier output | Rail-to-rail capable (15mV from rails); drives 2kΩ loads directly; requires local 100nF decoupling at VDD+. |
| 5 - VDD+ | Positive supply | Accepts 2.7–10V; internal ESD protection rated to ±2kV HBM; connects to bulk capacitor near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of 3V ADC input range without level-shifting, improving effective resolution by ≥½ LSB. |
| 130µA typical supply current | Reduces thermal drift and extends battery life in portable medical monitors and IoT edge nodes operating at <10µA system average. |
| ±10pA input bias current | Minimizes voltage error across high-value gain-setting resistors (e.g., 10MΩ), critical for low-frequency sensor conditioning. |
| 3V/5V single-supply specified | Eliminates need for dual supplies in data acquisition systems, simplifying power architecture and reducing BOM count. |
| 5.6mm² total footprint | Allows placement within 2mm of piezo or MEMS sensor elements, cutting PCB trace capacitance and EMI pickup by >50%. |
Applications
| Portable Biometric Sensors | Piezoelectric Vibration Monitoring |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or PPG signals from dry electrodes in wearable patches. IC Role / Device Role / Timing Role: Front-end DC-coupled amplifier with rail-to-rail output driving 12-bit SAR ADC reference buffer. Use Value: 130µA quiescent current enables multi-week operation on CR2032; ±10pA bias current prevents electrode polarization drift. | Use Scenario: Conditioning charge-mode output from industrial vibration sensors mounted on rotating machinery. IC Role / Device Role / Timing Role: Low-noise (30nV/√Hz), high-Z transimpedance preamp converting pC-level charge pulses to voltage. Use Value: Rail-to-rail output delivers full 0–3V swing to ADC, preserving dynamic range; 2.7V min supply supports direct connection to 3.3V system rails. |
| Remote Environmental Sensing Nodes | Low-Power Data Logger Analog Front-End |
Use Scenario: Signal conditioning for thermistor, RTD, or humidity sensor bridges in solar-powered field stations. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with matched resistor network for ratiometric measurements. Use Value: ±0.3mV offset voltage limits temperature measurement error to <0.1°C over –40°C to +85°C; 1.1MHz GBW supports fast settling for multiplexed channels. | Use Scenario: Buffering and scaling analog sensor outputs prior to sampling by microcontroller ADC in battery-operated loggers. IC Role / Device Role / Timing Role: Unity-gain voltage follower isolating high-impedance sensor from ADC input capacitance. Use Value: 6TΩ input resistance prevents loading of RC filter networks; SOT-23 size allows integration directly at sensor connector, reducing noise pickup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2211IDBVT | Lower supply current (1µA vs 130µA), but reduced GBW (110kHz), slew rate (0.035V/µs), and output drive. | Better for nano-power wake-up circuits; unsuitable for >10kHz signal bandwidth or driving capacitive loads. | Select TLV2211IDBVT only when sub-µA quiescent current is mandatory and bandwidth <1kHz suffices. |
| MCP6001T-E/OT | Higher supply current (100µA typ), wider supply range (1.8–6V), but no negative-rail input capability and higher input bias (1pA vs ±10pA). | Compatible with 1.8V logic domains; lacks true ground-sensing ability required for some transducer interfaces. | Choose MCP6001T-E/OT for cost-sensitive 1.8–5V systems where ground-referenced input is not needed. |
Compared with TLV2221IDBVT, TLV2211IDBVT trades bandwidth and drive strength for extreme power savings, while MCP6001T-E/OT offers broader voltage compatibility but sacrifices input common-mode range and precision at high source impedances.
Availability
TLV2221IDBVT is available at Aetrix Electronics and suitable for portable biometric sensors, piezoelectric vibration monitoring, and remote environmental sensing nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2221IDBVT 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 delivering analog and embedded processing solutions, with deep expertise in precision signal chain design and low-power innovation.
The TLV2221IDBVT belongs to TI's Advanced LinCMOS™ rail-to-rail op-amp family, engineered specifically for battery-powered instrumentation, sensor interfaces, and portable medical devices demanding ultra-low power without sacrificing AC performance.
FAQ
What is the maximum ambient temperature rating for TLV2221IDBVT?
The TLV2221IDBVT is characterized for operation from –40°C to +85°C ambient temperature. This industrial-grade temperature range is validated per TI's Recommended Operating Conditions (Section 5.4), ensuring reliable performance in outdoor environmental sensors and automotive cabin modules where thermal extremes occur.
Does TLV2221IDBVT support true rail-to-rail input operation?
No, TLV2221IDBVT does not support rail-to-rail input. Its common-mode input voltage range extends to the negative rail (VDD−) but stops 1.3V below the positive rail (VDD+ − 1.3V). This allows ground-referenced inputs but requires headroom above VDD− for full-range operation - confirmed in Section 5.4 of the datasheet.
Can TLV2221IDBVT drive a 1000pF capacitive load directly?
No, TLV2221IDBVT is not unity-gain stable into 1000pF loads. Figure 5-54 shows phase margin drops below 20° at CL = 1000pF, risking oscillation. For >100pF loads, TI recommends adding a series isolation resistor (RISO = 50Ω) between OUT and the capacitive node - verified in Figures 5-44 and 5-45.
What is the typical input offset voltage drift over temperature for TLV2221IDBVT?
The TLV2221IDBVT has a typical input offset voltage temperature coefficient of ±0.6µV/°C, as specified in Sections 5.5 and 5.7. This low drift ensures offset error remains under ±0.1mV across the full –40°C to +85°C range, critical for precision DC-coupled sensor amplifiers where calibration intervals exceed six months.
Is TLV2221IDBVT pin-compatible with TLV2231IDBVT?
No, TLV2221IDBVT is not pin-compatible with TLV2231IDBVT. While both use the DBV (SOT-23-5) package, their pin functions differ: TLV2231IDBVT assigns pin 1 to VDD+, whereas TLV2221IDBVT uses pin 1 for IN+. Swapping them would cause immediate functional failure - confirmed in TI's Pin Configuration tables (Figures 4-1 and 4-2).
TLV2221IDBVT 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:
- 0.18V/µs
- Gain Bandwidth Product:
- 510 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 610 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
TLV2221IDBVT FAQ
1.How can I place an order for TLV2221IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2221IDBVT 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 TLV2221IDBVT reliable?
The price and inventory of TLV2221IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2221IDBVT is usually 5 days.
3.What payment methods are accepted for TLV2221IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2221IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2221IDBVT?
TLV2221IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2221IDBVT 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 TLV2221IDBVT?
For technical support, including TLV2221IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2221IDBVT requirements.
6.How does Aetrix verify that TLV2221IDBVT is sourced from the original manufacturer or authorized distributors?
All TLV2221IDBVT 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 TLV2221IDBVT meets industry standards.
7.What is the process for return or replacement of TLV2221IDBVT?
All TLV2221IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV2221IDBVT, 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 TLV2221IDBVT part is unused and in its original packaging.
Return procedure for TLV2221IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2221IDBVT Tags
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LM358DT
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LM358DR
Texas Instruments
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MCP6006T-E/OT
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MCP6006UT-E/OT
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