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Texas Instruments TLV2221CDBVRG4
- Part No.:
- TLV2221CDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2221CDBVRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,003
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Product details
Overview
TLV2221CDBVRG4 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 500µA load) for high dynamic range in 3V/5V battery-powered signal conditioning. It is used in piezoelectric transducer interfaces and handheld sensor front-ends.
For engineers reviewing the TLV2221CDBVRG4 datasheet, TLV2221CDBVRG4 pinout, TLV2221CDBVRG4 application, or TLV2221CDBVRG4 equivalent, key selection criteria include input bias current (±10pA), common-mode input range extending to negative rail, low noise (30nV/√Hz at 1kHz), thermal performance (RθJA = 192.1°C/W), and guaranteed operation from –40°C to +85°C.
Technical Context
The TLV2221CDBVRG4 employs Advanced LinCMOS™ process technology to achieve ultra-low input bias current and high input impedance (6TΩ common-mode resistance), enabling accurate amplification of high-impedance sources like piezoelectric sensors. Its rail-to-rail output stage uses complementary PMOS/NMOS drivers to deliver full swing across 2.7V–10V supply range without external level-shifting.
It features internal compensation for unity-gain stability with capacitive loads up to 100pF, supports fixed-gain non-inverting configurations via optimized SOT-23 pinout (IN+ and IN− separated by GND), and maintains 60dB minimum open-loop gain over full temperature range with 1.1MHz GBW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - supports direct connection to single-cell Li-ion (3.0–3.7V), 3.3V logic, and 5V systems without regulation. |
| Quiescent Current | 130µA typical - enables >1-year battery life in continuous-sensing applications powered by CR2032 coin cell. |
| Input Bias Current | ±10pA typical - preserves signal integrity when amplifying outputs from >100MΩ sources (e.g., pH electrodes, photodiodes). |
| Output Swing | Within 15mV of rails at 500µA load - maximizes ADC input range in 3V/5V single-supply data acquisition. |
| Gain-Bandwidth Product | 1.1MHz - sufficient for anti-aliasing filters, sensor signal conditioning, and audio pre-amplification up to ~100kHz. |
| Input Offset Voltage | ±0.3mV max - ensures <0.01% gain error in precision DC-coupled amplifiers without trimming. |
| Common-Mode Input Range | Includes negative rail (VDD–) - allows direct interfacing to ground-referenced transducers without level-shifting circuitry. |
Pinout & Package
TLV2221CDBVRG4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.90mm × 1.60mm, occupying one-third the PCB area of standard SOIC-8. The pinout is optimized for low-noise layout: IN+ (Pin 1) and IN− (Pin 3) are separated by GND (Pin 2), while OUT (Pin 4) and VDD+ (Pin 5) reside on the same end to simplify feedback routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1: IN+ | Non-inverting input | High-impedance node (6TΩ) for reference or signal source connection; minimal leakage ensures accuracy with high-Z sensors. |
| Pin 2: VDD−/GND | Ground or negative supply | Reference plane for input common-mode range and output swing; must be low-impedance to minimize noise coupling. |
| Pin 3: IN− | Inverting input | Differential input node; paired with Pin 1 for closed-loop gain setting; separation from IN+ prevents parasitic coupling. |
| Pin 4: OUT | Amplifier output | Rail-to-rail capable driver; sinks/sours ±50mA; requires local 100nF decoupling near Pin 5 for stability. |
| Pin 5: VDD+ | Positive power supply | Accepts 2.7–10V; connects to bulk capacitor and local 100nF ceramic cap; shared with adjacent ICs only if trace inductance <1nH. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full dynamic range into ADCs and analog comparators without external level-shifting components. |
| 19nV/√Hz input voltage noise | Enables clean amplification of µV-level signals from piezoelectric accelerometers and strain gauges. |
| ±10pA input bias current | Minimizes offset drift in high-impedance transducer circuits, eliminating need for guard rings or active cancellation. |
| 3V/5V single-supply operation | Eliminates dual-rail generation in portable medical monitors, IoT nodes, and handheld test equipment. |
| SOT-23 footprint (2.9×1.6mm) | Permits placement within 2mm of sensor pads, reducing EMI pickup and parasitic capacitance on sensitive inputs. |
Applications
| Piezoelectric Sensor Interface | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying charge output from vibration sensors in predictive maintenance modules. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance buffer and gain stage before 16-bit SAR ADC sampling at 10kSPS. Use Value: 19nV/√Hz noise floor preserves SNR of sub-mV mechanical signals; rail-to-rail output fully utilizes 3V ADC reference. |
Use Scenario: Conditioning biopotential signals from dry-electrode chest straps in wearable heart-rate monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with 100dB CMRR and DC-coupled baseline stabilization. Use Value: ±10pA input bias current prevents electrode polarization drift; 130µA quiescent current extends battery life beyond 7 days. |
| Remote Temperature Sensing Node | Low-Power Data Logger |
Use Scenario: Signal conditioning for thermistor bridges in wireless environmental sensors deployed for >5 years. IC Role / Device Role / Timing Role: Precision voltage follower driving RC anti-aliasing filter into microcontroller ADC. Use Value: 0.3mV max input offset ensures <0.1°C measurement error across –40°C to +85°C operating range. |
Use Scenario: Analog front-end for multi-channel soil moisture and light intensity logging in solar-powered agriculture nodes. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier converting photodiode current to voltage for 12-bit ADC digitization. Use Value: 6TΩ input resistance minimizes loading of high-impedance photodiode; 2.7V min supply enables direct LDO-less operation from supercapacitor. |
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 |
|---|---|---|---|
| TLV2211IDBVR | Lower supply current (10µA vs 130µA), reduced bandwidth (110kHz vs 1.1MHz), higher input offset (3mV vs 0.3mV). | Better for ultra-long-life battery applications where speed is secondary; unsuitable for >10kHz sensor signals. | Select TLV2211IDBVR only when quiescent current is primary constraint and bandwidth <200kHz suffices. |
| MCP6001T-E/OT | Higher input bias current (1pA vs ±10pA), wider supply range (1.8–6.0V), identical SOT-23-5 package and pinout. | Compatible drop-in replacement for 3.3V systems; less suitable for high-Z piezo sources due to lower input impedance. | Choose MCP6001T-E/OT when migrating to Microchip ecosystem or requiring 1.8V operation; verify input bias impact on sensor accuracy. |
Compared with TLV2221CDBVRG4, TLV2211IDBVR trades bandwidth and precision for micro-power operation, while MCP6001T-E/OT offers broader low-voltage compatibility but sacrifices input impedance critical for piezoelectric interfaces.
Availability
TLV2221CDBVRG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial predictive maintenance sensors, and battery-powered environmental monitoring systems requiring stable component supply across extended product lifecycles.
Supply support for TLV2221CDBVRG4 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 over 90 years of innovation in precision analog ICs and power management solutions.
The TLV2221CDBVRG4 belongs to TI's Advanced LinCMOS™ op-amp family, designed specifically for ultra-low-power, high-precision signal conditioning in space-constrained, battery-operated applications such as wearables and remote sensors.
FAQ
What is the maximum operating temperature range for TLV2221CDBVRG4?
The TLV2221CDBVRG4 is rated for operation from –40°C to +85°C, matching the industrial temperature grade (TLV2221I). This range is validated per TI's production testing and supports deployment in outdoor environmental sensors, automotive cabin modules, and factory-floor instrumentation without derating.
Does TLV2221CDBVRG4 support true rail-to-rail input?
No, TLV2221CDBVRG4 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 design enables robust operation with high open-loop gain while maintaining low input bias current and noise performance.
Can TLV2221CDBVRG4 drive capacitive loads directly?
Yes, TLV2221CDBVRG4 is unity-gain stable with capacitive loads up to 100pF when configured as a voltage follower. For loads >100pF, a series isolation resistor (e.g., 50Ω) between OUT and the capacitor is recommended to maintain phase margin above 45° and prevent peaking or oscillation.
What is the typical input offset voltage drift over temperature for TLV2221CDBVRG4?
The TLV2221CDBVRG4 exhibits a typical input offset voltage temperature coefficient of ±0.6µV/°C. Over a –40°C to +85°C range, this results in ≤75µV total drift, ensuring stable DC accuracy in uncalibrated sensor front-ends without periodic nulling circuitry.
Is TLV2221CDBVRG4 pin-compatible with other SOT-23 op-amps?
TLV2221CDBVRG4 uses the industry-standard 5-pin SOT-23 pinout (IN+, GND, IN−, OUT, VDD+), making it mechanically compatible with many single op-amps. However, functional compatibility depends on electrical specs: verify supply current, bandwidth, and input bias requirements before substitution, as pinout alone does not guarantee drop-in replacement.
TLV2221CDBVRG4 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
TLV2221CDBVRG4 FAQ
1.How can I place an order for TLV2221CDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2221CDBVRG4 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 TLV2221CDBVRG4 reliable?
The price and inventory of TLV2221CDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2221CDBVRG4 is usually 5 days.
3.What payment methods are accepted for TLV2221CDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2221CDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2221CDBVRG4?
TLV2221CDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2221CDBVRG4 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 TLV2221CDBVRG4?
For technical support, including TLV2221CDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2221CDBVRG4 requirements.
6.How does Aetrix verify that TLV2221CDBVRG4 is sourced from the original manufacturer or authorized distributors?
All TLV2221CDBVRG4 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 TLV2221CDBVRG4 meets industry standards.
7.What is the process for return or replacement of TLV2221CDBVRG4?
All TLV2221CDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2221CDBVRG4, 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 TLV2221CDBVRG4 part is unused and in its original packaging.
Return procedure for TLV2221CDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2221CDBVRG4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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