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Texas Instruments TLV2221CDBVT
- Part No.:
- TLV2221CDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2221CDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
TLV2221CDBVT from Texas Instruments is a single rail-to-rail output operational amplifier in 5-pin SOT-23 package, designed for ultra-low-power battery-operated systems. It delivers 130µA typical supply current, 1.1MHz gain-bandwidth product, and rail-to-rail output swing from 2.7V to 10V supply, enabling high dynamic range signal conditioning in portable sensor interfaces and ADC front-ends.
For engineers reviewing the TLV2221CDBVT datasheet, TLV2221CDBVT pinout, TLV2221CDBVT application, or TLV2221CDBVT equivalent, key selection criteria include its ±10pA input bias current, 19nV/√Hz input voltage noise at 1kHz, common-mode input range extending to negative rail, low 3mV max input offset voltage, and verified performance across –40°C to +85°C industrial temperature range.
Technical Context
The TLV2221CDBVT employs Advanced LinCMOS™ process technology to achieve high input impedance (>6TΩ common-mode resistance), low input bias current, and rail-to-rail output capability without compromising stability into capacitive loads. Its architecture supports unity-gain stable operation with 1.1MHz GBW and 4.5V/µs slew rate, optimized for fixed-gain non-inverting configurations with separated IN+ and IN– pins to minimize PCB coupling.
It operates fully specified from single 3V or 5V supplies, with common-mode input voltage range including the negative rail (VDD–) and output swing within 15mV of both rails at light load. Thermal design is supported by RθJA = 192.1°C/W in DBV package, suitable for space-constrained, thermally isolated placements near high-impedance sources like piezoelectric transducers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - enables direct use with Li-ion, 3.3V, and 5V rails without regulation. |
| Quiescent Current | 130µA typical - extends battery life in always-on monitoring devices beyond 1 year on coin cell. |
| Input Offset Voltage | ±0.3mV min / 3mV max - ensures <0.1% error in 3V full-scale precision sensor amplification. |
| Gain-Bandwidth Product | 1.1MHz - supports stable closed-loop gain up to 100 at 10kHz for anti-aliasing filter integration. |
| Output Swing | Within 15mV of rails at 50µA - maximizes ADC utilization with 12-bit+ effective resolution. |
| Input Bias Current | ±10pA typical - preserves signal integrity when amplifying from >1MΩ source impedances. |
| Input Voltage Noise | 19nV/√Hz at 1kHz - critical for low-level piezo or thermopile signal recovery without added filtering. |
Pinout & Package
TLV2221CDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90mm × 1.60mm, occupying one-third the board area of standard SOIC-8. The pinout is optimized for minimal parasitic coupling: IN+ and IN– are separated by GND, while OUT and IN– reside on the same side to simplify negative feedback routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN+ | Non-inverting input | High-impedance node (6TΩ) for reference or sensor connection; requires guard ring in high-Z layouts. |
| 2: VDD–/GND | Ground or negative supply | Reference plane for input common-mode range; must be low-impedance return path for bias currents. |
| 3: IN– | Inverting input | Feedback node; placed adjacent to OUT (Pin 4) to minimize loop area and EMI susceptibility. |
| 4: OUT | Amplifier output | Rail-to-rail capable; drives 2kΩ load to within 15mV of rails - directly interfaces SAR ADC inputs. |
| 5: VDD+ | Positive supply | Accepts 2.7–10V; decoupling capacitor (0.1µF) required within 2mm for stability at full GBW. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range into ADCs without level-shifting circuitry, reducing BOM count and layout complexity. |
| 19nV/√Hz input voltage noise | Enables clean amplification of microvolt-level signals from piezoelectric accelerometers or pH electrodes. |
| ±10pA input bias current | Prevents significant DC error when used with high-resistance sensors (e.g., 10MΩ thermistors or photodiodes). |
| Common-mode input range includes VDD– | Allows direct sensing of signals referenced to ground in single-supply systems - no external level shift needed. |
| 130µA quiescent current | Supports continuous operation in energy-harvesting nodes and wearable biosensors with multi-year battery life. |
Applications
| Piezoelectric Sensor Interface | Portable ECG Front-End |
|---|---|
|
Use Scenario: Amplifying high-impedance, low-amplitude charge output from vibration or impact sensors in predictive maintenance nodes. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp configured as charge amplifier with ultra-low input bias current to prevent signal decay. Use Value: ±10pA bias current avoids measurable droop over 100ms intervals; 19nV/√Hz noise preserves SNR for FFT-based fault detection. |
Use Scenario: Buffering and amplifying weak biopotential signals (0.5–5mV) from dry-electrode ECG patches in Bluetooth-enabled wearables. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with rail-to-rail output driving 12-bit SAR ADC sampling at 1ksps. Use Value: 130µA supply current enables >2-year operation on CR2032; 3mV max VIO ensures baseline stability without frequent auto-zero calibration. |
| Remote Temperature Monitoring Node | Low-Power Data Acquisition System |
|
Use Scenario: Conditioning output from 10kΩ NTC thermistors in wireless industrial sensor nodes powered by energy harvesters. IC Role / Device Role / Timing Role: Precision voltage follower providing low-output-impedance drive to 10-bit ADC while rejecting supply ripple. Use Value: 95dB PSRR at DC rejects battery voltage sag during RF transmission; 2.7V min supply allows operation down to depleted Li-SOCl₂ cells. |
Use Scenario: Signal conditioning stage in modular DAQ modules for environmental sensing (CO₂, humidity, VOC) in smart building controllers. IC Role / Device Role / Timing Role: Gain-of-10 amplifier with 1.1MHz GBW driving multiplexed ADC inputs with <1µs settling to 0.1%. Use Value: 4.5V/µs slew rate and 6.8µs 0.1% settling ensure accurate sampling of fast transients; SOT-23 footprint saves >25mm² per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Higher 100µA supply current, 1MHz GBW, but only 2.7–6V supply range; no guaranteed rail-to-rail output below 2.7V. | Limited to 3V/5V systems; lacks guaranteed performance at 10V supply or –40°C operation. | Choose for cost-sensitive 3V-only designs where 10V headroom and extended temperature are not required. |
| OPA316IDBVR | Lower 50nV/√Hz noise, 10MHz GBW, but 400µA supply current; rail-to-rail I/O, not just output. | Better for wideband, low-noise applications but consumes >3× more power - unsuitable for battery lifetime-critical use. | Choose when bandwidth and input noise dominate over power; avoid in >5-year battery deployments. |
Compared with MCP6001T-E/OT and OPA316IDBVR, TLV2221CDBVT uniquely balances ultra-low quiescent current (130µA), rail-to-rail output, and guaranteed operation from 2.7V to 10V across –40°C to +85°C - making it optimal for long-life, wide-supply industrial sensing where power and voltage flexibility are co-primary constraints.
Availability
TLV2221CDBVT is available at Aetrix Electronics and suitable for portable medical devices, remote industrial sensors, and battery-powered data loggers requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for TLV2221CDBVT 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 TLV2221CDBVT belongs to TI's Advanced LinCMOS™ rail-to-rail op-amp family, engineered specifically for ultra-low-power, high-precision signal conditioning in space- and energy-constrained applications such as portable instrumentation and wireless sensor networks.
FAQ
What is the operating temperature range for TLV2221CDBVT?
The TLV2221CDBVT is rated for operation from –40°C to +85°C, meeting industrial-grade reliability requirements. This range is explicitly specified in the Recommended Operating Conditions table (Section 5.4) of the official datasheet, and all electrical characteristics - including input offset voltage, supply current, and output swing - are guaranteed across this full span without derating.
Does TLV2221CDBVT support true rail-to-rail input?
No, TLV2221CDBVT features rail-to-rail *output* only. Its common-mode input voltage range extends to the negative rail (VDD–) but stops 1.3V below the positive rail (VDD+), as confirmed in Section 5.4 (VIC = VDD– to (VDD+) – 1.3V). Input signals must remain within this range to avoid phase reversal or increased distortion - unlike rail-to-rail input/output amplifiers such as the OPA316.
What is the maximum capacitive load TLV2221CDBVT can drive stably?
TLV2221CDBVT remains stable with ≥100pF capacitive loads when configured as a unity-gain voltage follower, as validated in Figure 5-52 and 5-53 of the datasheet. For higher gains or inverting configurations, isolation resistors (e.g., 50Ω–100Ω) between OUT and CL are recommended to maintain ≥45° phase margin - especially critical in ADC driver applications where overshoot degrades acquisition accuracy.
Can TLV2221CDBVT operate from a 10V single supply?
Yes, TLV2221CDBVT supports a full 2.7V to 10V single-supply range, with all key parameters - including 130µA supply current, 1.1MHz GBW, and rail-to-rail output swing - verified at VDD = 10V in Section 5.7 Electrical Characteristics. This makes it suitable for legacy industrial systems using unregulated 9–10V rails without additional LDOs.
How does TLV2221CDBVT compare to TLV2211 and TLV2231 in terms of performance trade-offs?
TLV2221CDBVT sits between TLV2211 (micro-power, 17µA, 110kHz GBW) and TLV2231 (higher speed, 550µA, 2.5MHz GBW). It offers 130µA supply current and 1.1MHz GBW - delivering 10× more bandwidth than TLV2211 while consuming less than 25% of TLV2231's power - making it the optimal compromise for medium-speed, battery-conscious signal chains where both efficiency and responsiveness matter.
TLV2221CDBVT 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV2221CDBVT FAQ
1.How can I place an order for TLV2221CDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2221CDBVT 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 TLV2221CDBVT reliable?
The price and inventory of TLV2221CDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2221CDBVT is usually 5 days.
3.What payment methods are accepted for TLV2221CDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2221CDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2221CDBVT?
TLV2221CDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2221CDBVT 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 TLV2221CDBVT?
For technical support, including TLV2221CDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2221CDBVT requirements.
6.How does Aetrix verify that TLV2221CDBVT is sourced from the original manufacturer or authorized distributors?
All TLV2221CDBVT 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 TLV2221CDBVT meets industry standards.
7.What is the process for return or replacement of TLV2221CDBVT?
All TLV2221CDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV2221CDBVT, 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 TLV2221CDBVT part is unused and in its original packaging.
Return procedure for TLV2221CDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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