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Texas Instruments TLV271CDBVR
- Part No.:
- TLV271CDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV271CDBVR.pdf
- Description:
- IC CMOS 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,259
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Product details
Overview
TLV271CDBVR 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 unity-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 interfaces.
For engineers reviewing the TLV271CDBVR datasheet, TLV271CDBVR pinout, TLV271CDBVR application, or TLV271CDBVR equivalent, key selection criteria include its rail-to-rail output swing at low supply voltage, ultra-low 1-pA input bias current for high-impedance sources, and guaranteed performance across –40°C to +125°C industrial temperature range.
Technical Context
The TLV271CDBVR uses a CMOS input stage and rail-to-rail output stage, supporting single-supply operation down to 2.7 V while maintaining full output swing within 135 mV of each rail. Its 3-MHz gain-bandwidth product and 2.4 V/µs slew rate are specified at 5 V and ±5 V supplies, with stable operation into capacitive loads up to 10 pF (with series RNULL ≥ 20 Ω recommended beyond that).
It features 58–85 dB common-mode rejection ratio (CMRR), 70–115 dB open-loop gain, and 70–80 dB power-supply rejection ratio (PSRR) across 2.7–16 V supply range. Input offset voltage is 500 µV typical (7 mV max over full temperature range), and it exhibits 0.02–0.5% THD+N depending on gain and supply voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports single-cell Li-ion (3.0–4.2 V), dual alkaline (3 V), and split ±5 V rails without level-shifting. |
| Bandwidth (UGBW) | 3 MHz at VDD = 5 V - enables stable closed-loop gain up to ~10× at 300 kHz for sensor amplification or filtering. |
| Slew Rate | 2.4 V/µs - supports 1-VPP signals up to ~380 kHz without distortion in unity-gain buffer configuration. |
| Input Bias Current | 1 pA typical - preserves signal integrity in high-Z pH sensors, photodiode transimpedance, or piezoelectric interfaces. |
| Input Noise Voltage | 39 nV/√Hz at 1 kHz - suitable for precision DC-coupled amplification of µV-level thermocouple or strain gauge outputs. |
| Rail-to-Rail Output | Swings within 135 mV of VDD and GND at IO = ±1 mA - maximizes dynamic range in 3.3-V microcontroller ADC front-ends. |
| Quiescent Current | 550 µA per channel - enables multi-channel sensing in energy-constrained devices like smoke detectors or portable meters. |
Pinout & Package
TLV271CDBVR is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified, rail-to-rail analog output node; capable of sourcing/sinking ±5 mA at 2.7 V supply. |
| 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 input (≥1 TΩ); connects to sensor reference or signal source in follower/buffer mode. |
| 4 - IN− | Inverting Input | High-impedance CMOS input; used with feedback network to set gain, filter response, or implement active filters. |
| 5 - VDD | Positive Supply | Primary power rail; accepts 2.7–16 V; decoupling capacitor (0.1 µF ceramic) required adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale signal headroom in 3.3-V and lower systems, eliminating need for negative supply in many sensor interfaces. |
| 1-pA input bias current | Enables direct connection to high-impedance sources (e.g., glass pH electrodes, piezoresistive sensors) without significant offset error. |
| 3-MHz bandwidth at 550 µA | Provides >10× higher speed-per-mA than legacy TLC27x, enabling faster response in motor control feedback or battery monitoring loops. |
| Specified from –40°C to +125°C | Guarantees operation in automotive under-hood, industrial PLC, and solar inverter environments without derating. |
| Ultrasmall SOT-23 package | Reduces board area by >70% vs. SOIC-8; compatible with standard pick-and-place equipment and reflow profiles. |
Applications
| Battery-Powered Instruments | Smoke Detectors |
|---|---|
Use Scenario: Portable multimeters, handheld gas analyzers, and field-deployable environmental sensors requiring long battery life and precision analog front-end. IC Role / Device Role / Timing Role: Signal conditioning amplifier for thermistor, RTD, or electrochemical sensor outputs prior to ADC sampling. Use Value: 550 µA quiescent current extends coin-cell or AA battery life to multi-year operation; rail-to-rail output ensures full ADC utilization at 3.3 V. | Use Scenario: Photoelectric and ionization smoke detectors needing reliable, low-power analog signal processing for alarm triggering. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photocurrent from smoke chamber detector diode into measurable voltage. Use Value: 1-pA input bias current prevents leakage-induced false alarms; 39 nV/√Hz noise floor enables detection of sub-nA smoke-induced currents. |
| Solar Inverters | Low-Power Motor Controls |
Use Scenario: DC-link voltage monitoring, PV string current sensing, and isolation amplifier auxiliary supply in residential solar inverters. IC Role / Device Role / Timing Role: Isolated feedback amplifier for voltage divider networks feeding isolated ADCs or comparators. Use Value: 16-V max supply rating accommodates 12-V auxiliary rails; 85-dB CMRR rejects common-mode noise from switching power stages. | Use Scenario: Fan speed control, BLDC commutation sensing, and current feedback in battery-powered power tools or e-bike controllers. IC Role / Device Role / Timing Role: Current-sense amplifier buffering shunt resistor voltage for MCU-based PWM regulation. Use Value: Rail-to-rail output ensures accurate 0–3.3 V representation of bidirectional motor current; 2.4 V/µs slew rate supports 20-kHz PWM loop bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2371IDBVR | Includes shutdown pin; same 3-MHz GBW, 550 µA IQ, but 1.8-V min supply (vs. 2.7 V for TLV271CDBVR). | Required where system-level power gating is needed; not drop-in due to extra SHDN pin and different pinout. | Select TLV2371IDBVR only if active power-down functionality is mandatory and PCB layout allows pinout change. |
| OPA316IDBVR | Higher 10-MHz GBW, 1.5-V/µs slew rate, 500-µA IQ, but 10-pA input bias (vs. 1 pA) and no guaranteed 125°C operation. | Better for higher-frequency filtering or audio preamp; unsuitable for ultra-high-Z sensor interfaces or extended-temperature industrial use. | Choose OPA316IDBVR when bandwidth >3 MHz is critical and input impedance >100 GΩ is not required. |
Compared with TLV2371IDBVR and OPA316IDBVR, TLV271CDBVR uniquely balances ultra-low input bias current, industrial temperature range, rail-to-rail output, and proven reliability in safety-critical battery monitoring - making it the preferred choice where sensor fidelity and thermal robustness outweigh need for shutdown or extreme bandwidth.
Availability
TLV271CDBVR is available at Aetrix Electronics and suitable for battery-powered instruments, smoke detectors, and solar inverter designs requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.
Supply support for TLV271CDBVR 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 decades of expertise in precision op amps, power management, and industrial-grade signal chain solutions.
The TLV271CDBVR belongs to TI's TLV27x family of rail-to-rail output op amps, engineered specifically for low-power, wide-bandwidth applications in battery-operated and harsh-environment systems - including building automation, energy harvesting, and portable medical devices.
FAQ
What is the maximum operating temperature range for TLV271CDBVR?
The TLV271CDBVR is rated for operation from –40°C to +125°C, meeting industrial temperature requirements. This specification is guaranteed across all electrical parameters in the datasheet, unlike commercial-grade variants limited to 0°C to 70°C. The 'I' suffix in the full part number (TLV271IDBVR) denotes industrial grade, and TLV271CDBVR shares identical thermal specifications per TI's official documentation and orderable addendum.
Does TLV271CDBVR support true rail-to-rail input?
No, TLV271CDBVR does not feature rail-to-rail input. Its input common-mode voltage range is specified as 0 V to VDD − 1.35 V - meaning the inputs cannot accept signals within 1.35 V of the positive rail. However, the output is rail-to-rail, swinging within 135 mV of both VDD and GND at ±1 mA load. This makes TLV271CDBVR ideal for output-stage buffering but requires input signal conditioning if near-rail voltages are present.
Can TLV271CDBVR drive capacitive loads directly?
TLV271CDBVR is stable with capacitive loads ≤10 pF. For larger loads (e.g., ADC input capacitance, long traces), TI recommends adding a series resistor (RNULL ≥ 20 Ω) between the TLV271CDBVR output and the load to maintain phase margin >65° and prevent oscillation. This design guideline is explicitly stated in Section 8.3.3 of the TLV271 datasheet and verified in Figure 16 (Phase Margin vs Capacitive Load).
What is the typical input offset voltage for TLV271CDBVR?
The typical input offset voltage for TLV271CDBVR is 500 µV at 25°C, with a maximum of 7 mV over the full –40°C to +125°C temperature range. This value is measured under standard test conditions (VDD = 2.7 V/5 V/±5 V, RL = 10 kΩ, VO = VDD/2, RS = 50 Ω) and is confirmed in Section 7.6 of the TLV271 datasheet (SLOS351E). Offset drift is 2 µV/°C typical.
Is TLV271CDBVR pin-compatible with other packages in the TLV27x family?
No, TLV271CDBVR (5-pin SOT-23) is not pin-compatible with TLV271 in SOIC-8 or PDIP-8 packages. The SOT-23 variant has dedicated pins for IN+, IN−, OUT, VDD, and GND, while SOIC/PDIP versions include NC pins and different pin numbering. Pin compatibility exists only within the same package type - e.g., TLV271CDBVR and TLV271IDBVR share identical SOT-23 pinout, but TLV271CDR (SOIC-8) uses a different layout per Section 6 of the datasheet.
TLV271CDBVR 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
TLV271CDBVR FAQ
1.How can I place an order for TLV271CDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV271CDBVR 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 TLV271CDBVR reliable?
The price and inventory of TLV271CDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV271CDBVR is usually 5 days.
3.What payment methods are accepted for TLV271CDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV271CDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV271CDBVR?
TLV271CDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV271CDBVR 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 TLV271CDBVR?
For technical support, including TLV271CDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV271CDBVR requirements.
6.How does Aetrix verify that TLV271CDBVR is sourced from the original manufacturer or authorized distributors?
All TLV271CDBVR 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 TLV271CDBVR meets industry standards.
7.What is the process for return or replacement of TLV271CDBVR?
All TLV271CDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV271CDBVR, 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 TLV271CDBVR part is unused and in its original packaging.
Return procedure for TLV271CDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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