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Texas Instruments TLV2621IDG4
- Part No.:
- TLV2621IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2621IDG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,178
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Product details
Overview
TLV2621IDG4 from Texas Instruments is a single-channel, rail-to-rail output CMOS operational amplifier optimized for low-power, wide-bandwidth single-supply operation. It delivers 11 MHz gain-bandwidth, 10 V/µs slew rate, and 27 nV/√Hz input voltage noise while consuming only 800 µA per channel at 2.7–5.5 V supply. Its input common-mode range includes the positive rail (up to VDD + 0.2 V), enabling direct interfacing with high-side-referenced sensors in battery-powered data acquisition systems.
For engineers reviewing the TLV2621IDG4 datasheet, TLV2621IDG4 pinout, TLV2621IDG4 application, or TLV2621IDG4 equivalent, this page provides verified technical context, exact pin functionality, real-world use cases in precision analog front-ends, and validated alternative options for industrial-grade signal conditioning designs operating from Li-ion cells or microcontroller rails.
Technical Context
The TLV2621IDG4 employs a CMOS input stage with rail-to-rail output swing and a positive-rail-inclusive input common-mode range (1 V to VDD + 0.2 V), allowing direct connection to sources referenced to VDD. Its 11 MHz unity-gain bandwidth and 10 V/µs slew rate support high-fidelity buffering of fast ADC inputs and active filter stages.
It integrates an active shutdown function (SHDN pin) that reduces supply current to 4 µA/channel while maintaining fast enable/disable timing (ton = 4.5 µs at 2.7 V; toff = 200 ns), making it suitable for duty-cycled sensor interfaces where power budgeting is critical across -40°C to +125°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–3.7 V nominal) and 3.3 V microcontroller I/O rails without level shifting |
| Gain-Bandwidth Product | 11 MHz - supports stable unity-gain buffer configurations up to ~10 MHz with 2 kΩ load and 10 pF capacitance |
| Slew Rate | 10 V/µs - enables clean 1 VPP output transitions at ≥1 MHz without slewing distortion |
| Input Noise Voltage | 27 nV/√Hz at 10 kHz - preserves SNR in 12–16-bit SAR ADC driver applications |
| Shutdown Current | 4 µA/channel - reduces system standby power by >99% vs active mode (800 µA), critical for battery longevity |
| Input Common-Mode Range | 1 V to VDD + 0.2 V - accepts signals directly tied to VDD (e.g., resistive divider outputs, DAC buffers) |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive sensors, industrial PLC analog modules, and motor control feedback paths |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body height, surface-mount, RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Rail-to-rail capable: drives loads down to 2 kΩ while maintaining full swing from GND to VDD |
| 2 (GND) | Analog ground reference | Single ground return for both input and output stages; requires low-impedance PCB connection to minimize noise coupling |
| 3 (IN+) | Non-inverting input | CMOS input: bias current < 50 pA allows high-Z sensor interfaces (e.g., thermocouples, piezoelectric elements) |
| 4 (VDD) | Positive supply | Accepts 2.7–5.5 V; decoupling capacitor (0.1 µF ceramic) required within 2 mm of pin for stability |
| 5 (IN−) | Inverting input | Differential input node; used in transimpedance, difference amplifier, and active filter topologies |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range across entire supply (GND to VDD) into 2 kΩ, preserving ADC effective resolution |
| Positive-rail-inclusive VICR | Accepts input voltages up to VDD + 0.2 V, eliminating need for external level-shifting circuitry in high-side sensing |
| Ultralow shutdown current | 4 µA/channel ensures sub-µW standby power in wake-on-event sensor nodes and portable instrumentation |
| Wide bandwidth at low power | 11 MHz GBW at only 800 µA enables high-speed signal conditioning without thermal derating in compact layouts |
| Industrial temperature grade | Specified performance over -40°C to +125°C ensures reliability in uncontrolled environments like factory floors or automotive cabins |
Applications
| High-Speed Data Acquisition Channel | Li-ion Battery Monitoring Front-End |
|---|---|
Use Scenario: Buffering and driving the input of a 1 MSPS, 12-bit SAR ADC sampling thermistor, strain gauge, or current-sense amplifier outputs. IC Role / Device Role / Timing Role: Precision voltage follower and gain stage ensuring minimal settling error (<1 LSB) and no phase lag in acquisition window. Use Value: 11 MHz bandwidth and 10 V/µs slew rate guarantee <100 ns settling to 0.01% for 1 V step, meeting tight ADC aperture timing requirements. | Use Scenario: Conditioning cell voltage and pack current signals in portable medical devices or power tools using 3.6 V nominal Li-ion batteries. IC Role / Device Role / Timing Role: High-impedance buffer for voltage dividers and low-offset amplifier for shunt-based current sensing. Use Value: Input offset voltage ≤3.5 mV (max) and rail-to-rail output ensure accurate measurement across full 0–4.2 V cell range without external biasing. |
| Low-Power Sensor Interface Node | Industrial PLC Analog Input Module |
Use Scenario: Signal conditioning for MEMS accelerometers or humidity sensors in wireless IoT edge nodes powered by coin-cell or energy harvesting. IC Role / Device Role / Timing Role: Active filter and gain stage with on-demand shutdown synchronized to MCU sleep/wake cycles. Use Value: 4 µA shutdown current extends battery life to multi-year operation; fast 4.5 µs turn-on enables responsive wake-up without latency penalty. | Use Scenario: Isolated analog input stage in programmable logic controller modules accepting 0–10 V or 4–20 mA field signals. IC Role / Device Role / Timing Role: Input buffer and level translator between field-side signal conditioning and isolated ADC interface. Use Value: -40°C to +125°C operation and ±40 mA output drive support robust performance in harsh industrial enclosures with minimal thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA320AIDBVR | Lower input offset (150 µV max vs 3500 µV), lower noise (7 nV/√Hz), but higher supply current (1.8 mA) and no shutdown | Better DC accuracy and noise for precision instrumentation; unsuitable where ultra-low standby power is required | Select OPA320AIDBVR when offset and noise dominate design constraints; avoid if shutdown functionality or sub-1 mA quiescent current is mandatory |
| TLV9001IDBVR | Lower supply current (60 µA), rail-to-rail I/O, but reduced bandwidth (1 MHz) and slower slew rate (2 V/µs) | Optimized for always-on, low-frequency sensor monitoring (e.g., temperature, pressure); insufficient for >100 kHz signal paths | Select TLV9001IDBVR for battery-operated slow-signal nodes where power efficiency outweighs speed; avoid for ADC drivers or active filters above 100 kHz |
Compared with OPA320AIDBVR and TLV9001IDBVR, TLV2621IDG4 uniquely balances 11 MHz bandwidth, 4 µA shutdown, and positive-rail-inclusive input range-making it the only option among the three that meets simultaneous requirements for high-speed, low-power, and high-side-referenced signal conditioning in industrial and portable systems.
Availability
TLV2621IDG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical device analog front-ends, and Li-ion battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2621IDG4 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, embedded processing, and connectivity solutions with deep expertise in precision analog design and industrial-grade reliability.
The TLV262x family was engineered specifically for low-voltage, high-bandwidth signal conditioning in battery-powered and microcontroller-centric systems-emphasizing rail-to-rail operation, ultralow shutdown power, and extended temperature performance without sacrificing AC response.
FAQ
What is the maximum recommended supply voltage for TLV2621IDG4?
The absolute maximum supply voltage for TLV2621IDG4 is 6 V, but the recommended operating range is strictly 2.7 V to 5.5 V. Exceeding 5.5 V risks permanent damage and violates the device's qualified specifications. This 2.7–5.5 V window aligns with single-cell Li-ion (3.0–4.2 V) and standard 3.3 V logic rails, ensuring safe, specified operation in portable and industrial applications.
Does TLV2621IDG4 support rail-to-rail input operation?
No, TLV2621IDG4 does not support rail-to-rail input. Its input common-mode voltage range is specified from 1 V to VDD + 0.2 V - meaning it includes the positive supply rail but excludes the negative rail (GND). This architecture enables direct interfacing with high-side-referenced signals (e.g., VDD-referenced DACs or resistive dividers) but requires input signals to remain ≥1 V above GND.
How does the shutdown feature of TLV2621IDG4 behave during power-up?
TLV2621IDG4 has no built-in power-on reset for the SHDN pin; its default state is undefined at power-up. To ensure predictable behavior, the SHDN pin must be actively driven high (≥2 V) via a pull-up resistor to VDD or controlled by a GPIO. If left floating, the amplifier may remain disabled or oscillate, risking system-level startup failures. TI recommends a 100 kΩ pull-up to VDD for robust initialization.
Can TLV2621IDG4 drive a 1000 pF capacitive load stably?
No, TLV2621IDG4 is not internally compensated for heavy capacitive loads. The datasheet specifies stability with ≤10 pF load capacitance (CL = 10 pF, RL = 2 kΩ). Driving 1000 pF directly will cause severe peaking and potential oscillation. For such loads, add a series isolation resistor (typically 20–100 Ω) between the OUT pin and the capacitor, or use an external compensation network per TI Application Report SLOA020.
What is the typical input offset voltage drift over temperature for TLV2621IDG4?
The TLV2621IDG4 has a typical input offset voltage temperature coefficient (αVIO) of 3 µV/°C, with a maximum of 10 µV/°C over -40°C to +125°C. This means total offset drift across the full temperature range is typically ≤360 µV (3 µV/°C × 120°C), well within the 3500 µV maximum VIO spec at 125°C. This low drift supports stable DC-coupled gain stages in unregulated thermal environments.
TLV2621IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 11 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 800µA
- Current - Output / Channel:
- 28 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2621IDG4 FAQ
1.How can I place an order for TLV2621IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2621IDG4 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 TLV2621IDG4 reliable?
The price and inventory of TLV2621IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2621IDG4 is usually 5 days.
3.What payment methods are accepted for TLV2621IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2621IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2621IDG4?
TLV2621IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2621IDG4 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 TLV2621IDG4?
For technical support, including TLV2621IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2621IDG4 requirements.
6.How does Aetrix verify that TLV2621IDG4 is sourced from the original manufacturer or authorized distributors?
All TLV2621IDG4 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 TLV2621IDG4 meets industry standards.
7.What is the process for return or replacement of TLV2621IDG4?
All TLV2621IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV2621IDG4, 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 TLV2621IDG4 part is unused and in its original packaging.
Return procedure for TLV2621IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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