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Texas Instruments TLV272IDGKR
- Part No.:
- TLV272IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV272IDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:13,135
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Product details
Overview
TLV272IDGKR from Texas Instruments is a dual rail-to-rail output operational amplifier optimized for low-power, wide-bandwidth signal conditioning in battery-powered and industrial systems. It delivers 3-MHz gain-bandwidth, 2.4 V/µs slew rate, 550 µA/channel supply current, 39 nV/√Hz input noise, and operates from 2.7 V to 16 V across –40°C to +125°C. It is used in smoke detectors and solar inverters where precision, low quiescent power, and rail-to-rail swing are critical.
For engineers reviewing the TLV272IDGKR datasheet, TLV272IDGKR pinout, TLV272IDGKR application, or TLV272IDGKR equivalent, key selection considerations include its VSSOP-8 package footprint, dual-channel configuration, CMOS input stage (1 pA bias current), rail-to-rail output compliance under load, and compatibility with Li-ion and MSP430-based systems.
Technical Context
The TLV272IDGKR uses a CMOS input stage enabling ultra-low input bias current (1 pA typical) and high input impedance, making it suitable for high-impedance sensor interfaces. Its rail-to-rail output stage supports full dynamic range down to 2.7-V single-supply operation, with guaranteed output swing within 135 mV of each rail at 1 mA load.
It achieves 3-MHz unity-gain bandwidth with only 550 µA per channel, maintaining stability with capacitive loads up to 10 pF; for larger loads, a series nulling resistor (≥20 Ω) is recommended to preserve phase margin (>65°).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports single-supply Li-ion (3.0–4.2 V), dual-supply ±1.35 V to ±8 V, and legacy 5 V/±5 V rails. |
| Gain-Bandwidth Product | 3 MHz - enables stable closed-loop operation up to ~200 kHz at gain = 10 without excessive phase lag. |
| Slew Rate | 2.4 V/µs - supports clean 50-kHz sine-wave output at 1-Vpp without distortion in unity-gain buffer configurations. |
| Input Bias Current | 1 pA - minimizes voltage error in high-impedance transducer interfaces (e.g., pH electrodes, photodiode TIA feedback networks). |
| Input Noise Voltage | 39 nV/√Hz - ensures <1 µV RMS integrated noise in 10-kHz bandwidth, suitable for precision analog front-ends. |
| Output Swing | Rail-to-rail - delivers >99% of supply range at 1 mA load, maximizing ADC input utilization in 3.3-V microcontroller systems. |
| Quiescent Current | 550 µA per channel - enables dual-opamp signal chain operation below 1.2 mW at 5 V, critical for E-bike battery monitoring. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm pitch, exposed thermal pad (not electrically connected), moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplified output of Channel 1 - drives downstream circuitry; capable of sourcing/sinking ≥4 mA while maintaining rail-to-rail swing. |
| 2 | 1IN− | Inverting input of Channel 1 - high-impedance CMOS node; requires matched trace impedance for optimal common-mode rejection. |
| 3 | 1IN+ | Noninverting input of Channel 1 - referenced to GND or bias network; sensitive to PCB leakage due to 1-pA bias current. |
| 4 | GND | Lowest potential reference - must be low-impedance star point; separates analog and digital return paths in mixed-signal layouts. |
| 5 | 2IN+ | Noninverting input of Channel 2 - independent of Channel 1; enables dual-sensor buffering without crosstalk (typical −80 dB @ 100 kHz). |
| 6 | 2IN− | Inverting input of Channel 2 - identical electrical characteristics to Pin 2; supports differential input configurations with matched external resistors. |
| 7 | 2OUT | Amplified output of Channel 2 - fully independent output stage; shares VDD/GND but no internal coupling to Channel 1. |
| 8 | VDD | Positive supply rail - requires local 100-nF ceramic decoupling placed ≤2 mm from pin; supports up to 16 V absolute max. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers usable signal swing within 135 mV of VDD and GND at 1-mA load, preserving dynamic range in 3.3-V systems interfacing to 12-bit ADCs. |
| Ultra-low input bias current | 1 pA typical enables direct connection to high-Z sources (e.g., piezoelectric sensors, ion-selective electrodes) without significant offset drift. |
| Wide supply range | 2.7 V to 16 V operation allows use across portable (Li-ion), industrial (±5 V), and legacy (12 V) power domains without redesign. |
| Low-noise performance | 39 nV/√Hz input voltage noise ensures minimal contribution to system noise floor in battery-powered instrumentation amplifiers. |
| Industrial temperature grade | Specified from –40°C to +125°C (I-suffix) - qualified for under-hood automotive sensing and solar inverter control loop applications. |
Applications
| Smoke Detector Signal Conditioning | Solar Inverter DC-Link Monitoring |
|---|---|
Use Scenario: Amplifying weak current pulses from photoelectric smoke chamber into clean voltage signals for MCU ADC sampling. IC Role / Device Role / Timing Role: Dual-channel transimpedance amplifier and buffer - Channel 1 converts photocurrent, Channel 2 buffers reference voltage for ratiometric measurement. Use Value: 1-pA input bias prevents baseline drift during long-term standby; rail-to-rail output maximizes 3.3-V ADC resolution; 550-µA quiescent current extends battery life beyond 10 years. | Use Scenario: Monitoring high-voltage DC bus (up to 600 V) via resistive divider, then scaling and conditioning for isolation amplifier input. IC Role / Device Role / Timing Role: Precision voltage follower and level-shifter - isolates MCU-side circuitry from high-voltage domain while maintaining accuracy and bandwidth. Use Value: 3-MHz bandwidth preserves fast transient response during MPPT events; 39-nV/√Hz noise avoids corruption of millivolt-level ripple measurements; 125°C rating survives inverter enclosure heat. |
| Low-Power Motor Control Feedback | Building Automation Sensor Hub |
Use Scenario: Closed-loop current sensing in BLDC motor gate driver ICs using shunt resistor and opamp-based amplification. IC Role / Device Role / Timing Role: High-side current sense amplifier - configured as difference amplifier with matched external resistors to reject common-mode voltage up to 48 V. Use Value: Rail-to-rail output ensures full-scale reporting of 0–5-A range into 3.3-V ADC; 2.4-V/µs slew rate supports PWM switching frequencies up to 20 kHz without distortion. | Use Scenario: Aggregating analog outputs from multiple environmental sensors (CO₂, humidity, occupancy) onto shared MCU analog inputs. IC Role / Device Role / Timing Role: Multi-channel signal conditioner - each TLV272IDGKR handles two sensors, providing gain, filtering, and drive capability for long PCB traces. Use Value: Dual-channel integration reduces BOM count vs discrete singles; VSSOP-8 footprint saves space on compact HVAC controller PCBs; 125°C rating accommodates attic-mounted units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2372IDGKR | Includes shutdown pin; same GBW, slew rate, and supply range; 1-pA bias current; rail-to-rail input/output. | Required when system-level power gating is needed (e.g., periodic wake-up sensor nodes); adds control logic overhead. | Select TLV2372IDGKR only if active power-down functionality is mandatory; otherwise TLV272IDGKR offers simpler layout and lower cost. |
| LMV722MMX/NOPB | Lower supply current (320 µA/ch), narrower GBW (1.5 MHz), higher input bias current (100 pA), same VSSOP-8 package. | Better suited for ultra-low-power, low-bandwidth applications (e.g., slow thermistor readout); insufficient for 50-kHz filter designs. | Choose LMV722MMX/NOPB only when sub-500-µA total quiescent budget is critical and bandwidth <1 MHz suffices. |
Compared with TLV2372IDGKR and LMV722MMX/NOPB, TLV272IDGKR provides the optimal balance of 3-MHz bandwidth, rail-to-rail output, and 550-µA quiescent current in VSSOP-8 - making it preferred for smoke detector analog front-ends and solar inverter voltage monitoring where both speed and precision are required.
Availability
TLV272IDGKR is available at Aetrix Electronics and suitable for smoke detectors, solar inverters, low-power motor controls, and building automation systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV272IDGKR 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer markets.
The TLV27x product line was designed specifically for low-power, rail-to-rail output operational amplifier applications in battery-powered and industrial environments - emphasizing precision, efficiency, and robustness across –40°C to +125°C.
FAQ
What is the maximum operating junction temperature for TLV272IDGKR?
The absolute maximum junction temperature for TLV272IDGKR is 150°C. Its rated operating free-air temperature range is –40°C to +125°C (I-suffix grade), and thermal design must ensure junction temperature remains below 150°C under worst-case power dissipation and ambient conditions. The VSSOP-8 package has RθJA = 186.6°C/W, so at 1.1 mW dissipation (550 µA × 2 V), ΔT ≈ 0.2°C - well within safe margins.
Does TLV272IDGKR support rail-to-rail input?
No, TLV272IDGKR does not support rail-to-rail input. Its common-mode input voltage range is specified as 0 V to VDD − 1.35 V. For example, at VDD = 5 V, valid input voltages span 0 V to 3.65 V. This limitation arises from its CMOS input stage architecture; rail-to-rail input capability is found in later TI families like TLV237x, not TLV27x.
Can TLV272IDGKR drive a 100-pF capacitive load directly?
No, TLV272IDGKR should not drive >10-pF capacitive loads directly. Driving 100-pF loads without compensation causes phase margin degradation (<45°), leading to overshoot and ringing. TI recommends adding a series nulling resistor (RNULL ≥ 20 Ω) between the output pin and the capacitive load to restore stability - verified in Figure 26 of the SLOS351E datasheet.
Is TLV272IDGKR pin-compatible with other dual opamps in VSSOP-8?
TLV272IDGKR is not universally pin-compatible with all VSSOP-8 dual opamps. While it follows standard VSSOP-8 pinout (1OUT, 1IN−, 1IN+, GND, 2IN+, 2IN−, 2OUT, VDD), functional compatibility depends on internal architecture. For example, it lacks shutdown pins present in TLV2372IDGKR, so direct substitution may cause unintended behavior if the host board expects control logic.
What is the typical input offset voltage for TLV272IDGKR at 25°C?
The typical input offset voltage for TLV272IDGKR at 25°C is 5 mV, with a maximum of 7 mV across the full –40°C to +125°C temperature range. This value is measured under standard conditions: VDD = 2.7 V/5 V/±5 V, RL = 10 kΩ, VO = VDD/2, and RS = 50 Ω. Offset voltage drift is 2 µV/°C, contributing <0.25 mV error over a 125°C span.
TLV272IDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.6V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 550µA (x2 Channels)
- Current - Output / Channel:
- 8 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TLV272IDGKR FAQ
1.How can I place an order for TLV272IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV272IDGKR 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 TLV272IDGKR reliable?
The price and inventory of TLV272IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV272IDGKR is usually 5 days.
3.What payment methods are accepted for TLV272IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV272IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV272IDGKR?
TLV272IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV272IDGKR 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 TLV272IDGKR?
For technical support, including TLV272IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV272IDGKR requirements.
6.How does Aetrix verify that TLV272IDGKR is sourced from the original manufacturer or authorized distributors?
All TLV272IDGKR 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 TLV272IDGKR meets industry standards.
7.What is the process for return or replacement of TLV272IDGKR?
All TLV272IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV272IDGKR, 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 TLV272IDGKR part is unused and in its original packaging.
Return procedure for TLV272IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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