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Texas Instruments TLV271CDBVT
- Part No.:
- TLV271CDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV271CDBVT.pdf
- Description:
- IC CMOS 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,740
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Product details
Overview
TLV271CDBVT from Texas Instruments is a single-channel, 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 supply current per channel, 39 nV/√Hz input voltage noise, and operates from 2.7 V to 16 V - enabling use in Li-ion powered instrumentation and sensor front-ends.
For engineers reviewing the TLV271CDBVT datasheet, TLV271CDBVT pinout, TLV271CDBVT application, or TLV271CDBVT equivalent, key selection considerations include its SOT-23-5 package footprint, CMOS input stage (1 pA bias current), rail-to-rail output swing down to 150 mV from rails at 1 mA load, and guaranteed performance across 0°C to 70°C commercial temperature range.
Technical Context
The TLV271CDBVT employs a CMOS input stage with ultra-low input bias current (1 pA typical) and rail-to-rail output stage using complementary push-pull architecture, enabling full dynamic range utilization in single-supply configurations. Its 3-MHz unity-gain bandwidth is achieved with only 550 µA quiescent current, balancing speed and power efficiency.
It supports common-mode input voltage from ground to VDD − 1.35 V and delivers output swing within 150 mV of each rail under 1-mA load. The device is fully specified for 2.7 V, 5 V, and ±5 V supplies, with PSRR of 70–80 dB and CMRR of 55–70 dB across operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - compatible with single-cell Li-ion (3.0–4.2 V), dual alkaline (3 V), and industrial 12-V rails. |
| Gain-Bandwidth Product | 3 MHz - enables stable unity-gain buffer or gain-of-10 amplification up to 300 kHz without phase margin loss. |
| Slew Rate | 2.4 V/µs - supports clean 1-Vpp output at 300 kHz in unity-gain configuration with minimal distortion. |
| Input Bias Current | 1 pA - preserves signal integrity in high-impedance sensor interfaces (e.g., pH electrodes, photodiode transimpedance). |
| Input Voltage Noise | 39 nV/√Hz at 1 kHz - suitable for precision DC-coupled amplification where thermal noise dominates. |
| Output Swing | Rail-to-rail - delivers >99% of supply range (e.g., 0.15 V to 2.55 V on 2.7-V supply at 1 mA load), maximizing ADC input utilization. |
| Quiescent Current | 550 µA per channel - enables multi-channel sensing nodes with sub-1-mA total system bias current. |
Pinout & Package
TLV271CDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm × 1.15 mm, optimized for space-constrained PCB layouts in portable electronics and IoT edge nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified signal node; capable of sourcing/sinking ≥4 mA while maintaining rail-to-rail swing. |
| 2 - GND | Negative Supply / Ground | Reference return path for single-supply operation; must be low-impedance to minimize noise coupling. |
| 3 - IN+ | Noninverting Input | High-impedance CMOS node (1 pA bias); connects to sensor, reference, or feedback divider. |
| 4 - IN− | Inverting Input | High-impedance CMOS node; used for feedback network connection in inverting or transimpedance configurations. |
| 5 - VDD | Positive Supply | Power input; accepts 2.7–16 V; requires local 0.1-µF ceramic decoupling capacitor placed ≤2 mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full-scale signal capture in low-voltage microcontroller ADCs (e.g., MSP430) without level-shifting circuitry. |
| 1 pA input bias current | Minimizes voltage error in high-Z source applications (e.g., thermocouples, piezoelectric sensors) without external guarding. |
| 3-MHz bandwidth at 550 µA | Delivers audio-band and fast-sensor response (e.g., smoke detector ion chamber signals) with micropower efficiency. |
| 2.7-V minimum supply | Supports direct interface with Li-ion batteries down to 3.0 V and ultra-low-voltage MCUs without boost regulation. |
| Specified for 0°C to 70°C | Guarantees parametric performance in commercial-grade embedded systems (e.g., smart meters, portable test gear). |
Applications
| Smoke detectors | Power Banks |
|---|---|
Use Scenario: Amplifying weak ionization current (pA–nA range) from radioactive chamber during smoke ingress detection. IC Role / Device Role / Timing Role: Transimpedance amplifier converting chamber current to measurable voltage with minimal input loading. Use Value: 1-pA input bias ensures <1-mV offset error across 10-MΩ feedback resistor, improving smoke sensitivity threshold by ≥20% vs. higher-bias alternatives. | Use Scenario: Battery voltage monitoring and charge/discharge current sensing in compact USB-C power delivery modules. IC Role / Device Role / Timing Role: Precision voltage buffer and current-sense amplifier feeding MCU ADC inputs. Use Value: Rail-to-rail output ensures full 0–3.3 V ADC range utilization across 2.8–4.2 V Li-ion cell voltage, increasing measurement resolution by 12 bits effective. |
| E-Bike battery management | Building automation sensors |
Use Scenario: Monitoring pack cell voltages and motor phase currents in space-constrained e-bike BMS PCBs. IC Role / Device Role / Timing Role: High-accuracy differential amplifier for shunt-based current sensing and voltage scaling. Use Value: 39 nV/√Hz input noise and 3-MHz bandwidth enable <1% current measurement error at 20-kHz PWM switching frequencies. | Use Scenario: Signal conditioning for CO₂, humidity, and occupancy sensors in wireless HVAC control nodes. IC Role / Device Role / Timing Role: Low-power sensor front-end amplifier driving SAR ADCs in energy-harvesting nodes. Use Value: 550-µA quiescent current allows continuous 1-Hz sampling for >2 years on a single CR2032 coin cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2371IDBVT | Same 550-µA IQ and 3-MHz GBW, but adds shutdown pin (active-low); 1-pA IIB unchanged. | Required when system-level power gating is needed (e.g., periodic wake-up sensor nodes). | Select TLV2371IDBVT only if shutdown functionality is required; otherwise TLV271CDBVT offers lower cost and identical core performance. |
| OPA316IDBVR | Higher 10-MHz GBW and 6-V/µs slew rate, but 400-µA IQ; 0.2-pA IIB; same SOT-23-5 package. | Better suited for higher-frequency signal chains (e.g., active filters above 1 MHz) where speed outweighs power budget. | Choose OPA316IDBVR when bandwidth >5 MHz is required; TLV271CDBVT remains optimal for sub-500-kHz precision sensing at lowest power. |
Compared with TLV2371IDBVT and OPA316IDBVR, TLV271CDBVT provides the best balance of rail-to-rail output, 1-pA input bias, and 550-µA quiescent current in SOT-23-5 - making it the preferred choice for cost-sensitive, battery-operated instrumentation where moderate bandwidth suffices.
Availability
TLV271CDBVT is available at Aetrix Electronics and suitable for smoke detectors, power banks, and E-bike battery management systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TLV271CDBVT 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 and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV27x family was designed specifically for low-power, rail-to-rail output signal conditioning in battery-operated and industrial sensor interfaces - emphasizing micropower efficiency without sacrificing bandwidth or precision.
FAQ
What is the maximum capacitive load the TLV271CDBVT can drive without instability?
The TLV271CDBVT exhibits reduced phase margin with capacitive loads >10 pF, potentially causing ringing or oscillation. Texas Instruments recommends inserting a series resistor (RNULL ≥20 Ω) between the OUT pin and capacitive load. This isolation maintains ≥65° phase margin and stable step response, as verified in Figure 16 of the SLOS351E datasheet. For loads ≤10 pF, direct connection is safe.
Does the TLV271CDBVT support split-supply operation?
Yes, the TLV271CDBVT supports split-supply operation from ±1.35 V to ±8 V, as specified in Section 7.2 (Recommended Operating Conditions). In dual-supply mode, GND serves as the reference node, VDD connects to +V, and the negative supply connects to the GND pin - enabling bipolar signal handling in applications like audio preamplifiers or industrial process control loops.
What is the input common-mode voltage range for TLV271CDBVT at 2.7-V supply?
At VDD = 2.7 V, the input common-mode voltage range for TLV271CDBVT is 0 V to VDD − 1.35 V = 1.35 V, per Section 7.2 of the datasheet. This means both IN+ and IN− must remain within 0–1.35 V to ensure specified input bias current, offset voltage, and CMRR performance. Operation outside this range may cause increased input current or degraded accuracy.
Can TLV271CDBVT replace TLC271 in existing designs?
Yes, TLV271CDBVT is explicitly positioned as an ideal upgrade for the TLC271 family, offering rail-to-rail output (vs. limited swing in TLC271), lower supply current (550 µA vs. 675 µA), and improved input bias current (1 pA vs. 1 pA typical but higher max). Pinout is identical in SOIC-8, but TLV271CDBVT uses SOT-23-5 - requiring PCB layout change. Electrical compatibility is confirmed in TI's Device Comparison Table (Section 5).
Is TLV271CDBVT qualified for automotive applications?
No, TLV271CDBVT carries the 'C' suffix, indicating commercial temperature grade (0°C to 70°C) and non-automotive qualification. For automotive use, TI offers the TLV271IDBVT (I-suffix, –40°C to +125°C) with identical electrical specs and SOT-23-5 packaging - certified to AEC-Q100 Grade 2. TLV271CDBVT is intended for consumer, industrial, and medical portable equipment.
TLV271CDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 1
- 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:
- 625µA
- Current - Output / Channel:
- 8 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV271CDBVT FAQ
1.How can I place an order for TLV271CDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV271CDBVT 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 TLV271CDBVT reliable?
The price and inventory of TLV271CDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV271CDBVT is usually 5 days.
3.What payment methods are accepted for TLV271CDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV271CDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV271CDBVT?
TLV271CDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV271CDBVT 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 TLV271CDBVT?
For technical support, including TLV271CDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV271CDBVT requirements.
6.How does Aetrix verify that TLV271CDBVT is sourced from the original manufacturer or authorized distributors?
All TLV271CDBVT 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 TLV271CDBVT meets industry standards.
7.What is the process for return or replacement of TLV271CDBVT?
All TLV271CDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV271CDBVT, 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 TLV271CDBVT part is unused and in its original packaging.
Return procedure for TLV271CDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV271CDBVT Tags
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