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Texas Instruments TLV272IDGKG4
- Part No.:
- TLV272IDGKG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV272IDGKG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,969
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Product details
Overview
TLV272IDGKG4 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 unity-gain bandwidth, 2.4 V/µs slew rate, 550 µA per channel supply current, and 39 nV/√Hz input voltage noise across a 2.7 V to 16 V supply range - enabling precision sensing and analog front-end design in E-bikes, smoke detectors, and solar inverters.
For engineers reviewing the TLV272IDGKG4 datasheet, TLV272IDGKG4 pinout, TLV272IDGKG4 application, or TLV272IDGKG4 equivalent, key selection criteria include rail-to-rail output swing down to 100 mV from rails at 1 mA load, ultra-low 1 pA input bias current for high-impedance sensor interfaces, and guaranteed operation from –40°C to +125°C in the VSSOP-8 package.
Technical Context
The TLV272IDGKG4 uses CMOS input stage architecture to achieve 1 pA typical input bias current and 39 nV/√Hz input voltage noise at 1 kHz, supporting high-accuracy DC-coupled sensor amplification. Its rail-to-rail output stage employs complementary push-pull circuitry capable of sourcing/sinking ≥4 mA while maintaining <200 mV saturation voltage near supply rails under 1 mA load.
It operates with stable unity-gain compensation across 2.7 V–16 V supplies, delivering 65° phase margin into 10 pF capacitive loads and 3 MHz bandwidth at 5 V. The device requires no shutdown control and functions exclusively in active mode across its full specified temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports single Li-ion (3.0–4.2 V), dual alkaline (3.0 V), or ±8 V split supplies without level-shifting. |
| Bandwidth (UGBW) | 3 MHz at VDD = 5 V - enables accurate amplification of signals up to ~200 kHz with ≤1% gain error in closed-loop configurations. |
| Slew Rate | 2.4 V/µs at VDD = 5 V - supports 1-Vpp output transitions in <0.42 µs, suitable for fast-settling instrumentation and filter stages. |
| Input Bias Current | 1 pA max at 25°C - minimizes voltage error in high-Z source applications like photodiode or pH electrode interfaces. |
| Input Noise Voltage | 39 nV/√Hz at 1 kHz - contributes <1.2 µV RMS noise in 10-kHz bandwidth, critical for low-level signal integrity. |
| Rail-to-Rail Output | Swings within 100 mV of VDD and GND at 1 mA load - maximizes dynamic range in low-voltage ADC driver and comparator reference circuits. |
| Quiescent Current | 550 µA per channel - enables dual opamp operation on <1.1 mA total, ideal for multi-sensor nodes with tight power budgets. |
Pinout & Package
The TLV272IDGKG4 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm with 0.5-mm lead pitch, optimized for space-constrained PCB layouts in portable and industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplified output of Channel 1 - drives downstream ADC inputs, filters, or comparators with rail-to-rail swing capability. |
| 2 | 1IN− | Inverting input of Channel 1 - forms feedback node in inverting configurations; high-impedance CMOS input minimizes loading. |
| 3 | 1IN+ | Noninverting input of Channel 1 - accepts high-Z sensor signals (e.g., thermistor dividers, bridge outputs) with negligible current draw. |
| 4 | GND | Reference node for single-supply operation - must be low-impedance connection to minimize noise coupling into both channels. |
| 5 | 2IN+ | Noninverting input of Channel 2 - electrically isolated from Channel 1 inputs; supports independent dual-signal conditioning paths. |
| 6 | 2IN− | Inverting input of Channel 2 - used for differential amplification or active filtering without crosstalk-induced errors. |
| 7 | 2OUT | Amplified output of Channel 2 - provides matched AC/DC performance to Channel 1 for stereo or redundant signal chains. |
| 8 | VDD | Positive supply terminal - accepts 2.7–16 V; decoupling capacitor (0.1 µF) required within 2 mm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >98% of full-scale voltage range at 1 mA load, preserving SNR in low-voltage data acquisition systems. |
| Ultra-low input bias current | 1 pA maximum enables direct interfacing with megohm-range sensors (e.g., gas detectors, medical electrodes) without offset drift. |
| 3-MHz bandwidth at 550 µA | Provides 5.5× higher speed-per-mA than legacy TLC272, reducing component count in multi-stage filters and active RC networks. |
| –40°C to +125°C operation | Qualified for industrial environments including motor control enclosures and outdoor energy monitoring units without derating. |
| CMOS input stage | Eliminates thermal EMF errors common in bipolar-input opamps, improving DC stability in precision thermocouple amplifiers. |
Applications
| E-Bike Battery Monitoring | Smoke Detector Sensor Amplifier |
|---|---|
Use Scenario: Amplifying voltage drops across shunt resistors during regenerative braking and motor startup in 24–48 V e-bike battery packs. IC Role / Device Role / Timing Role: Dual-channel current sense amplifier with one channel for bidirectional current measurement and second for cell voltage scaling. Use Value: Rail-to-rail output ensures full utilization of 12-bit ADC input range even at 3.3 V MCU supply, while 1 pA bias current prevents shunt resistor self-heating errors. | Use Scenario: Conditioning weak ionization chamber currents (sub-pA to nA) in photoelectric smoke alarms operating on 9 V alkaline batteries. IC Role / Device Role / Timing Role: Transimpedance amplifier converting chamber current to measurable voltage, followed by low-pass filtering to reject EMI. Use Value: 39 nV/√Hz input noise and 1 pA bias current enable reliable detection of 10 fA–100 pA signals over 10-year battery life without calibration drift. |
| Solar Inverter MPPT Reference | Low-Power Motor Control Feedback |
Use Scenario: Generating precise voltage references for maximum power point tracking (MPPT) algorithms in microinverters powered by 12–24 V auxiliary rails. IC Role / Device Role / Timing Role: Precision buffer and reference divider for ADC sampling of panel voltage/current, rejecting supply ripple via 80 dB PSRR. Use Value: 80 dB PSRR at DC and 70 dB at 10 kHz suppresses switching noise from nearby gate drivers, ensuring stable MPPT convergence. | Use Scenario: Closed-loop speed and current feedback in BLDC fan controllers using 3.3 V or 5 V logic supplies. IC Role / Device Role / Timing Role: Dual opamp implementing PI controller and current-sense amplifier in compact motor driver ICs. Use Value: 2.4 V/µs slew rate supports 20 kHz PWM frequency with <1% phase lag, while 550 µA/channel enables always-on motor protection without standby power penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV272IDR | VSSOP-8 (DGK) vs SOIC-8 (D); identical electrical specs, 3.0 × 3.0 mm vs 4.98 × 3.91 mm footprint. | SOIC-8 variant better suited for manual assembly or legacy board rework; VSSOP-8 preferred for high-density motor control PCBs. | Select TLV272IDR only if SOIC-8 land pattern exists and board area permits larger package. |
| TLV2372IDGKR | Includes shutdown pin (active-low); otherwise matches TLV272IDGKG4 in bandwidth, noise, and supply current. | Required where system-level power gating is mandated (e.g., battery cutoff during deep sleep), adding complexity for non-shutdown designs. | Choose TLV2372IDGKR only when explicit shutdown control is needed; otherwise TLV272IDGKG4 reduces BOM count and layout risk. |
Compared with TLV272IDR and TLV2372IDGKR, the TLV272IDGKG4 offers optimal trade-off between miniaturization (VSSOP-8), zero-external-control simplicity, and guaranteed industrial temperature operation - making it the default choice for space- and reliability-critical embedded analog signal chains.
Availability
TLV272IDGKG4 is available at Aetrix Electronics and suitable for E-bike battery management, smoke detector sensor interfaces, and solar inverter reference circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV272IDGKG4 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.
The TLV27x product line was engineered specifically for low-power, rail-to-rail signal conditioning in battery-operated and industrial equipment - emphasizing ultra-low bias current, wide supply flexibility, and robust thermal performance from –40°C to +125°C.
FAQ
What is the maximum supply voltage for TLV272IDGKG4?
The absolute maximum supply voltage for TLV272IDGKG4 is 16.5 V, but the recommended operating range is 2.7 V to 16 V. Operation above 16 V risks permanent damage, while below 2.7 V may cause undefined behavior or failure to meet rail-to-rail output specifications. TI specifies full performance across this range at temperatures from –40°C to +125°C.
Does TLV272IDGKG4 support true rail-to-rail input?
No, TLV272IDGKG4 features rail-to-rail *output* only. Its input common-mode voltage range extends from 0 V to VDD − 1.35 V, meaning it cannot accept signals within 1.35 V of the positive rail. This limitation is explicitly documented in Section 7.2 of the datasheet and must be considered when designing sensor interfaces near VDD.
What is the thermal resistance (RθJA) of TLV272IDGKG4 in its VSSOP-8 package?
The junction-to-ambient thermal resistance (RθJA) for TLV272IDGKG4 in the DGK (VSSOP-8) package is 186.6°C/W, as measured per JEDEC JESD51-7 standards on a 2S2P test board. This value assumes standard copper pour and via placement; actual board-level RθJA will improve with enhanced thermal vias and ground plane area beneath the exposed pad region.
Can TLV272IDGKG4 drive capacitive loads directly?
TLV272IDGKG4 can drive ≤10 pF capacitive loads stably without external compensation. For loads exceeding 10 pF - such as ADC input capacitance or long PCB traces - TI recommends adding a series resistor (RNULL ≥20 Ω) between the output pin and the load to maintain ≥65° phase margin and prevent ringing or oscillation, as detailed in Section 8.3.3 of the datasheet.
Is TLV272IDGKG4 pin-compatible with other dual opamps in the TLV27x family?
Yes, TLV272IDGKG4 shares identical pinout with all TLV272 variants (e.g., TLV272IDR, TLV272IP) in the same VSSOP-8 (DGK) or SOIC-8 (D) packages. Pin functions - including 1IN+, 1IN−, 1OUT, GND, 2IN+, 2IN−, 2OUT, and VDD - are standardized across the TLV272 product group, enabling drop-in replacement within the same package footprint.
TLV272IDGKG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
TLV272IDGKG4 FAQ
1.How can I place an order for TLV272IDGKG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV272IDGKG4 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 TLV272IDGKG4 reliable?
The price and inventory of TLV272IDGKG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV272IDGKG4 is usually 5 days.
3.What payment methods are accepted for TLV272IDGKG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV272IDGKG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV272IDGKG4?
TLV272IDGKG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV272IDGKG4 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 TLV272IDGKG4?
For technical support, including TLV272IDGKG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV272IDGKG4 requirements.
6.How does Aetrix verify that TLV272IDGKG4 is sourced from the original manufacturer or authorized distributors?
All TLV272IDGKG4 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 TLV272IDGKG4 meets industry standards.
7.What is the process for return or replacement of TLV272IDGKG4?
All TLV272IDGKG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV272IDGKG4, 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 TLV272IDGKG4 part is unused and in its original packaging.
Return procedure for TLV272IDGKG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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