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Texas Instruments TLV272CDGKR
- Part No.:
- TLV272CDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TLV272CDGKR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,278
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Product details
Overview
TLV272CDGKR 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, and 39 nV/√Hz input voltage noise across 2.7 V to 16 V supply operation - enabling precision sensing in smoke detectors and solar inverter monitoring circuits.
For engineers reviewing the TLV272CDGKR datasheet, TLV272CDGKR pinout, TLV272CDGKR application, or TLV272CDGKR equivalent, this page provides verified package mapping (VSSOP-8), confirmed dual-channel functional behavior, temperature-rated performance (–40°C to +125°C), and real-world design context for Li-ion-compatible sensor front-ends and motor control feedback loops.
Technical Context
The TLV272CDGKR uses CMOS input stage architecture with 1 pA typical input bias current, supporting high-impedance sensor interfaces without loading effects. Its rail-to-rail output stage achieves <100 mV from each supply rail at 1 mA load, enabling full dynamic range utilization in single-supply 3.3 V or 5 V microcontroller systems.
It operates stably under recommended conditions: common-mode input range of 0 V to VDD – 1.35 V, unity-gain stable configuration, and capacitive load drive up to 10 pF without external compensation - with optional series RNULL ≥20 Ω recommended for >10 pF loads per TI's application guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports direct interface with Li-ion cells (2.7–4.2 V), 5 V logic rails, and ±5 V split supplies. |
| Gain-Bandwidth Product | 3 MHz at VDD = 5 V - enables stable closed-loop gain up to ~10× at 300 kHz for anti-aliasing or sensor amplification. |
| Slew Rate | 2.4 V/µs at VDD = 5 V - supports clean 100-kHz sine wave output at 2-VPP without distortion. |
| Input Bias Current | 1 pA typical - preserves accuracy in high-Z pH sensors, photodiode transimpedance stages, and thermocouple buffers. |
| Input Noise Voltage | 39 nV/√Hz at 1 kHz - contributes <1.2 µVRMS integrated noise in 10-kHz bandwidth, suitable for 12-bit ADC front-ends. |
| Output Voltage Swing | Rail-to-rail - delivers 0.1 V to VDD – 0.1 V at 1 mA load, maximizing signal headroom in 3.3 V MCU systems. |
| Quiescent Current | 550 µA per channel - allows dual opamp use in sub-1-mA total system standby power budgets. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.5-mm lead 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 ADC reference buffer or comparator input with rail-to-rail swing. |
| 2 | 1IN– | Inverting input of Channel 1 - connects to feedback network in inverting amplifier or summing junction. |
| 3 | 1IN+ | Noninverting input of Channel 1 - accepts high-impedance sensor signals (e.g., thermistor divider) with minimal loading. |
| 4 | GND | Lowest potential reference - must be low-impedance plane for noise immunity; shared return for both channels. |
| 5 | 2IN+ | Noninverting input of Channel 2 - used independently for second sensor path or differential pair input stage. |
| 6 | 2IN– | Inverting input of Channel 2 - configured for transimpedance, instrumentation, or active filter topology. |
| 7 | 2OUT | Amplified output of Channel 2 - isolated from Channel 1 output to prevent crosstalk in dual-signal paths. |
| 8 | VDD | Positive supply - decoupled with 100-nF ceramic capacitor placed ≤2 mm from pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full-scale signal utilization in 3.3 V systems without level-shifting circuitry or supply headroom loss. |
| 1 pA input bias current | Permits direct connection to >100-MΩ source impedances (e.g., glass pH electrodes) without offset drift. |
| 3-MHz bandwidth at 550 µA | Delivers 10× higher speed-per-power than legacy TLC272, reducing active filter component count. |
| –40°C to +125°C operation | Qualified for industrial motor control enclosures and outdoor solar inverter ambient conditions. |
| CMOS input stage | Eliminates input protection diodes, preventing latch-up when inputs exceed supply rails by <0.3 V. |
Applications
| Smoke Detector Signal Conditioning | Solar Inverter DC-Link Monitoring |
|---|---|
Use Scenario: Amplifying weak ionization chamber current (pA–nA) into measurable voltage for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and rail-to-rail output to maximize dynamic range on 3.3 V supply. Use Value: 1 pA IIB prevents baseline shift during long-term smoke accumulation detection; 39 nV/√Hz noise ensures reliable threshold discrimination. | Use Scenario: Scaling high-voltage DC-link (up to 600 V) via resistive divider for isolation amplifier input in grid-tied inverters. IC Role / Device Role / Timing Role: Precision buffer and level-shift stage isolating divider output from isolation amplifier input impedance. Use Value: Rail-to-rail output maintains full 0–3.3 V ADC range despite divider ratio; 3-MHz GBW supports fast transient response during fault events. |
| Low-Power Motor Control Feedback | Building Automation Sensor Hub |
Use Scenario: Amplifying current-sense resistor voltage in BLDC motor phase-leg drivers operating from 12 V battery. IC Role / Device Role / Timing Role: High-side current sense amplifier with gain-setting resistors and rail-to-rail output for 0–5 V PWM controller interface. Use Value: 550 µA/channel quiescent current minimizes idle power in always-on motor controllers; 2.4 V/µs slew rate captures 20-kHz PWM edge transitions. | Use Scenario: Multiplexed analog front-end for CO₂, humidity, and occupancy sensors in smart HVAC nodes powered by energy harvesting. IC Role / Device Role / Timing Role: Dual-channel signal conditioner - one channel for NDIR CO₂ detector, second for capacitive humidity sensor. Use Value: Dual configuration reduces BOM count vs two singles; 2.7 V minimum supply enables operation directly from supercapacitor backup. |
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 |
|---|---|---|---|
| TLV2372IDGKR | Includes shutdown mode (active-low); identical GBW, slew rate, and supply current; same VSSOP-8 package. | Required where system-level power gating is needed during sleep cycles - e.g., wireless sensor nodes with duty-cycled operation. | Select TLV2372IDGKR only if shutdown functionality is mandatory; otherwise TLV272CDGKR offers simpler enable sequencing and lower cost. |
| LMV722MMX/NOPB | Lower 10 MHz GBW but higher 5.5 V/µs slew rate; 600 µA/channel; specified only to 125°C (not 125°C industrial grade). | Better suited for higher-speed filtering (e.g., audio preamps) but lacks extended temperature validation for harsh industrial environments. | Choose LMV722MMX/NOPB for bandwidth-critical designs below 125°C ambient; TLV272CDGKR remains preferred for guaranteed –40°C to +125°C operation. |
Compared with TLV2372IDGKR, TLV272CDGKR eliminates shutdown complexity and reduces bill-of-materials risk in always-on systems; versus LMV722MMX/NOPB, it provides validated industrial temperature performance essential for solar and motor control deployments.
Availability
TLV272CDGKR is available at Aetrix Electronics and suitable for smoke detectors, solar inverters, low-power motor controls, battery-powered instruments, and building automation systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLV272CDGKR 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 TLV27x product line was designed specifically for low-power, rail-to-rail signal conditioning in portable and industrial equipment - targeting applications where battery life, supply voltage flexibility, and sensor interface fidelity are critical.
FAQ
What is the maximum operating temperature range for TLV272CDGKR?
The TLV272CDGKR is rated for operation from –40°C to +125°C, meeting industrial-grade requirements. This specification is validated per TI's SLOS351E datasheet Section 7.2 and applies across the full 2.7 V to 16 V supply range, making it suitable for deployment in solar inverter enclosures and motor drive cabinets where ambient temperatures exceed 85°C.
Does TLV272CDGKR support true rail-to-rail input capability?
No, TLV272CDGKR features rail-to-rail *output* only. Its input common-mode voltage range is specified as 0 V to VDD – 1.35 V (Section 7.2), meaning the inputs cannot accept signals within 1.35 V of the positive rail. For rail-to-rail input + output, consider TI's TLV2462 or OPA333 families - but TLV272CDGKR's 1 pA input bias current remains superior for high-Z sensor buffering.
Can TLV272CDGKR drive capacitive loads without oscillation?
TLV272CDGKR is stable with capacitive loads ≤10 pF in unity-gain configuration (Section 8.3.3). For loads >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 preserve phase margin and prevent ringing, as documented in Figure 26 of the SLOS351E datasheet.
Is TLV272CDGKR pin-compatible with older TLC272 variants?
Yes, TLV272CDGKR shares identical pinout and footprint with TLC272 in SOIC-8 and PDIP-8 packages, but the VSSOP-8 (DGK) variant of TLV272CDGKR is not mechanically compatible with TLC272's SOIC-8 due to different body dimensions and lead pitch. Electrical compatibility is maintained, including supply voltage, input/output ranges, and AC performance improvements.
What is the typical input offset voltage for TLV272CDGKR?
The typical input offset voltage for TLV272CDGKR is 500 µV at 25°C (Section 7.6), with a maximum of 5 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 - confirming suitability for precision DC-coupled sensor amplification where offset drift must remain below 2 µV/°C.
TLV272CDGKR 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TLV272CDGKR FAQ
1.How can I place an order for TLV272CDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV272CDGKR 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 TLV272CDGKR reliable?
The price and inventory of TLV272CDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV272CDGKR is usually 5 days.
3.What payment methods are accepted for TLV272CDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV272CDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV272CDGKR?
TLV272CDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV272CDGKR 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 TLV272CDGKR?
For technical support, including TLV272CDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV272CDGKR requirements.
6.How does Aetrix verify that TLV272CDGKR is sourced from the original manufacturer or authorized distributors?
All TLV272CDGKR 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 TLV272CDGKR meets industry standards.
7.What is the process for return or replacement of TLV272CDGKR?
All TLV272CDGKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV272CDGKR, 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 TLV272CDGKR part is unused and in its original packaging.
Return procedure for TLV272CDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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