My Inquiry
My Account
Texas Instruments TLV2221CDBVR
- Part No.:
- TLV2221CDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV2221CDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,700
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2221CDBVR from Texas Instruments is a single rail-to-rail output, very low-power operational amplifier in 5-pin SOT-23 package, featuring 130µA typical supply current, 1.1MHz gain-bandwidth product, and ±10pA input bias current. It operates from 2.7V to 10V supply, delivers rail-to-rail output swing, and targets battery-powered signal conditioning of high-impedance sources such as piezoelectric transducers.
For engineers reviewing the TLV2221CDBVR datasheet, TLV2221CDBVR pinout, TLV2221CDBVR application, or TLV2221CDBVR equivalent, key selection considerations include its micro-power consumption at 3V/5V operation, low-noise (30nV/√Hz at 1kHz), wide common-mode input range including negative rail, and optimized SOT-23 layout for minimal PCB trace noise pickup.
Technical Context
The TLV2221CDBVR uses Advanced LinCMOS™ process to achieve high input impedance (>6TΩ common-mode resistance) and ultra-low input bias current (±10pA typical), enabling accurate amplification of weak signals from high-impedance sensors. Its rail-to-rail output stage supports full dynamic range utilization in single-supply systems down to 2.7V.
It exhibits stable unity-gain operation with 4.5V/µs slew rate and 1.1MHz gain-bandwidth product, while maintaining low THD+N (0.076% at AV=1, f=20kHz, RL=2kΩ referenced to 0V). Input offset voltage is ±0.3mV (max), with ±0.6µV/°C drift, supporting precision DC-coupled applications across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 10V - enables direct use in 3V and 5V battery-powered systems without regulation. |
| Quiescent Current | 130µA typical - extends battery life in portable monitoring and remote-sensing devices. |
| Gain-Bandwidth Product | 1.1MHz - supports stable amplification of audio-band and low-speed sensor signals. |
| Input Bias Current | ±10pA typical - preserves signal integrity when interfacing with >1MΩ source impedances. |
| Output Swing | Rail-to-rail - maximizes ADC input dynamic range in single-supply data acquisition systems. |
| Input Offset Voltage | ±0.3mV max - ensures <1 LSB error in 12-bit ADC interfaces with 3V reference. |
| Common-Mode Input Range | Includes negative rail (VDD–) - allows direct sensing of ground-referenced or bipolar signals. |
Pinout & Package
TLV2221CDBVR 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 low-noise layout: IN+ and IN− are separated by GND to minimize coupling, while OUT and IN− reside on the same side to simplify feedback routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN+ | Non-inverting input | High-impedance node (6TΩ) for connecting high-Z sources like piezo elements or pH electrodes. |
| 2: VDD−/GND | Ground or negative supply | Reference plane for single-supply operation; separates IN+ and IN− to suppress leakage paths. |
| 3: IN− | Inverting input | Feedback node location aligned with OUT (Pin 4) to minimize parasitic loop area in non-inverting configurations. |
| 4: OUT | Amplifier output | Rail-to-rail capable output driving ADC inputs, filters, or low-power analog stages directly. |
| 5: VDD+ | Positive power supply | Accepts 2.7V–10V; decoupling capacitor placement adjacent to this pin is critical for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply voltage range at output-enables maximum SNR when driving 12-bit+ SAR ADCs. |
| Low input bias current (±10pA) | Minimizes voltage error across high-value gain-setting resistors (>100kΩ), preserving accuracy in transducer interfaces. |
| Low noise (30nV/√Hz @1kHz) | Supports clean amplification of µV-level signals from thermocouples or strain gauges without added filtering. |
| Wide supply range (2.7V–10V) | Eliminates need for LDO in multi-cell battery systems (e.g., 2×Li-ion or 3×Alkaline). |
| Optimized SOT-23 pinout | GND between inputs and OUT/IN− adjacency reduce layout-induced errors-verified in TI's fixed-gain non-inverting layout guide. |
Applications
| Piezoelectric Sensor Signal Conditioning | Portable ECG Front-End Amplifier |
|---|---|
Use Scenario: Amplifying high-impedance, low-amplitude charge outputs from vibration or impact sensors. IC Role / Device Role / Timing Role: Primary signal conditioner with unity-gain buffer configuration to preserve signal fidelity before ADC sampling. Use Value: ±10pA input bias current prevents signal droop across >10MΩ sensor impedance; rail-to-rail output matches 3V ADC reference. |
Use Scenario: Low-noise, battery-operated amplification of mV-level biopotential signals in handheld medical monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with DC-coupled input and 3V single-supply operation. Use Value: 30nV/√Hz input voltage noise ensures <5µV RMS integrated noise over 0.05–100Hz bandwidth; 130µA IDD extends operating time on coin-cell batteries. |
| Remote Temperature Sensor Interface | Low-Power Data Acquisition Channel |
Use Scenario: Interfacing with RTD or thermistor bridges in wireless sensor nodes powered by energy harvesting. IC Role / Device Role / Timing Role: Precision differential amplifier in constant-current excitation circuit with ratiometric output scaling. Use Value: ±0.3mV max VIO contributes <0.1°C error in 100Ω Pt100 interface; 2.7V minimum supply supports buck-boost converter output. |
Use Scenario: General-purpose analog input channel in industrial IoT edge controllers requiring long-term stability. IC Role / Device Role / Timing Role: Configurable gain stage preceding sigma-delta ADC, supporting both single-ended and pseudo-differential modes. Use Value: Common-mode input range extending to VDD− allows direct connection to grounded sensor outputs; 1.1MHz GBW supports 10ksps sampling with adequate phase margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Higher quiescent current (100µA vs 130µA typ), lower GBW (1MHz), no guaranteed rail-to-rail output at light loads. | Less suitable for 3V battery systems requiring full output swing near supply rails. | Prefer TLV2221CDBVR when rail-to-rail output and sub-150µA current are mandatory. |
| OPA316IDBVR | Lower noise (11nV/√Hz), higher GBW (10MHz), but 400µA IDD - 3× higher power consumption. | Better for higher-speed or lower-noise applications where power budget allows. | Choose TLV2221CDBVR for strict micro-power constraints; OPA316 for performance-first designs. |
Compared with MCP6001T-E/OT and OPA316IDBVR, the TLV2221CDBVR uniquely balances rail-to-rail output, 130µA quiescent current, and 30nV/√Hz noise in a 5-pin SOT-23 - making it optimal for space-constrained, battery-powered sensor front-ends where output swing and power efficiency are co-critical.
Availability
TLV2221CDBVR is available at Aetrix Electronics and suitable for portable medical devices, wireless sensor networks, and industrial condition monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2221CDBVR 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 op-amps and low-power signal chain solutions.
The TLV2221CDBVR belongs to TI's LinCMOS™ rail-to-rail op-amp family, designed specifically for ultra-low-power, high-accuracy signal conditioning in battery-operated and space-constrained applications.
FAQ
What is the operating temperature range for TLV2221CDBVR?
The TLV2221CDBVR is specified for commercial temperature range: 0°C to +70°C. This differs from the TLV2221IDBV variant, which supports –40°C to +85°C. Designers selecting TLV2221CDBVR must ensure ambient conditions remain within the 0°C–70°C window for guaranteed electrical performance per datasheet specifications.
Does TLV2221CDBVR support true rail-to-rail input?
No, TLV2221CDBVR does not feature 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). However, its rail-to-rail output capability remains fully functional across the entire supply range (2.7V–10V), enabling full-scale signal delivery to downstream ADCs.
Can TLV2221CDBVR drive capacitive loads directly?
TLV2221CDBVR can drive up to 100pF capacitive load stably in unity-gain configuration, as verified in Figure 5-52 of the datasheet. For loads exceeding 100pF, external isolation resistor (RISO ≥ 50Ω) is recommended to maintain phase margin above 45° and prevent overshoot - confirmed in Figures 5-44 and 5-45.
What is the maximum output current capability of TLV2221CDBVR?
The TLV2221CDBVR provides ±50mA short-circuit output current per Absolute Maximum Ratings. Under normal linear operation, it delivers ±100µA to ±500µA with low distortion - e.g., VOL = 15mV at IOL = 50µA (VDD = 3V), confirming robust sourcing/sinking for light analog loads like ADC reference buffers or filter stages.
How does TLV2221CDBVR compare to TLV2211 in power consumption?
TLV2221CDBVR consumes 130µA typical supply current - higher than TLV2211's ~1µA, but significantly lower than TLV2231's ~600µA. It represents a deliberate trade-off: better AC performance (1.1MHz GBW, 4.5V/µs SR) and stronger output drive than TLV2211, while retaining micro-power suitability for 3V/5V battery systems.
TLV2221CDBVR 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
TLV2221CDBVR FAQ
1.How can I place an order for TLV2221CDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2221CDBVR 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 TLV2221CDBVR reliable?
The price and inventory of TLV2221CDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2221CDBVR is usually 5 days.
3.What payment methods are accepted for TLV2221CDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2221CDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2221CDBVR?
TLV2221CDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2221CDBVR 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 TLV2221CDBVR?
For technical support, including TLV2221CDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2221CDBVR requirements.
6.How does Aetrix verify that TLV2221CDBVR is sourced from the original manufacturer or authorized distributors?
All TLV2221CDBVR 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 TLV2221CDBVR meets industry standards.
7.What is the process for return or replacement of TLV2221CDBVR?
All TLV2221CDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2221CDBVR, 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 TLV2221CDBVR part is unused and in its original packaging.
Return procedure for TLV2221CDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2221CDBVR 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
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
