My Inquiry
My Account
Texas Instruments TLV271CDBVTG4
- Part No.:
- TLV271CDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV271CDBVTG4.pdf
- Description:
- IC CMOS 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,859
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV271CDBVTG4 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 supply - enabling use in Li-ion powered instrumentation and sensor interfaces.
For engineers reviewing the TLV271CDBVTG4 datasheet, TLV271CDBVTG4 pinout, TLV271CDBVTG4 application, or TLV271CDBVTG4 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 sources, and guaranteed operation across 0°C to 70°C (C-suffix) in the 5-pin SOT-23 package.
Technical Context
The TLV271CDBVTG4 employs a CMOS input stage enabling femtoampere-level input bias current and high input impedance, paired with a rail-to-rail output stage using complementary push-pull transistors to achieve full dynamic range near supply rails. Its 3-MHz gain-bandwidth product and 2.4 V/µs slew rate support stable closed-loop operation up to ~50 kHz in unity-gain buffer configurations with 10 pF capacitive loads.
It is fully specified for single-supply (2.7 V–16 V) and split-supply (±1.35 V–±8 V) operation, with common-mode input range extending from ground to VDD −1.35 V. Input offset voltage is 500 µV max (typical 5 mV), and PSRR is 70 dB min over frequency - supporting robust performance in noisy power environments typical of motor control and building automation nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports direct interface with Li-ion cells (3.0–4.2 V), 5 V microcontrollers, and industrial 12 V rails without level-shifting. |
| Bandwidth (UGBW) | 3 MHz - enables accurate amplification of signals up to ~50 kHz in unity-gain configuration with minimal phase lag. |
| Slew Rate | 2.4 V/µs - ensures <2 µs settling to 0.1% for 1 V step inputs, critical for fast-settling sensor buffers and active filters. |
| Supply Current | 550 µA per channel - allows continuous operation for >1 year on a 200 mAh coin cell in always-on smoke detector front-ends. |
| Input Bias Current | 1 pA - preserves signal integrity when interfacing with high-impedance pH sensors, photodiodes, or piezoelectric elements. |
| Output Swing | Rail-to-rail - delivers >2.55 V output at 2.7 V supply with 1 mA load, maximizing ADC dynamic range in low-voltage data acquisition. |
| Input Noise | 39 nV/√Hz at 1 kHz - maintains SNR >70 dB for 100 mVpp biomedical sensor signals digitized by 12-bit ADCs. |
Pinout & Package
TLV271CDBVTG4 is packaged in a 5-pin SOT-23 (DBV) surface-mount package measuring 2.90 mm × 1.60 mm × 1.15 mm, optimized for space-constrained portable electronics and PCB area-sensitive industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified signal node; capable of sourcing/sinking ±5 mA while maintaining rail-to-rail swing under 2.7–16 V supply. |
| 2 - GND | Negative Supply / Ground | Reference return path for single-supply operation; must be low-impedance to minimize noise coupling into CMOS input stage. |
| 3 - IN+ | Noninverting Input | High-impedance (1 TΩ) node accepting sensor or reference signals; sensitive to layout-induced leakage above 100 fA. |
| 4 - IN− | Inverting Input | Feedback node for closed-loop configurations; matched to IN+ for optimal CMRR and offset rejection. |
| 5 - VDD | Positive Supply | Power input; requires local 100 nF ceramic decoupling within 2 mm to sustain 3 MHz stability and PSRR performance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers usable output within 100 mV of VDD and GND at 1 mA load - maximizes dynamic range for 8–12 bit ADCs in 2.7–5 V systems. |
| Ultra-low input bias current (1 pA) | Enables direct connection to megohm-range sensors (e.g., thermistors, gas sensors) without significant DC error or drift. |
| 3-MHz bandwidth at 550 µA | Provides 6× higher speed-per-microwatt than legacy TLC27x, reducing power budget overhead in multi-channel signal chains. |
| Specified for 2.7 V operation | Guarantees functionality down to depleted Li-ion cell voltage (2.7 V), eliminating need for brown-out reset circuitry in portable devices. |
| CMOS input architecture | Supports high-impedance source matching and eliminates thermal EMF errors common in bipolar-input opamps used with thermocouples. |
Applications
| Smoke Detectors | Power Banks |
|---|---|
Use Scenario: Amplifying weak ionization chamber current (pA–nA) into measurable voltage for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with ultra-low input bias current and rail-to-rail output to maximize signal headroom at 3.3 V MCU supply. Use Value: Enables reliable detection of sub-100 fA smoke-induced currents while consuming <600 µA - extending battery life beyond 10 years in standby mode. | Use Scenario: Monitoring cell voltage and charge/discharge current in multi-cell lithium polymer packs with integrated fuel gauging. IC Role / Device Role / Timing Role: Low-drift, low-power buffer for battery voltage sense lines feeding into precision ADCs and protection ICs. Use Value: Maintains <1 mV offset error across 0–4.2 V range and temperature (0–70°C), improving state-of-charge accuracy to ±1.5% over lifetime. |
| E-Bike Motor Controllers | Building Automation Sensors |
Use Scenario: Conditioning hall-effect current sensor outputs for real-time motor phase current feedback in 24–48 V drive inverters. IC Role / Device Role / Timing Role: High-speed, rail-to-rail output amplifier driving isolated sigma-delta modulators with 3 MHz bandwidth and 2.4 V/µs slew rate. Use Value: Supports 20 kHz PWM switching harmonics suppression and <500 ns loop delay - critical for field-oriented control stability. | Use Scenario: Signal conditioning for CO₂, humidity, and occupancy sensors in smart thermostats and HVAC controllers. IC Role / Device Role / Timing Role: Low-noise, low-power amplifier for resistive and capacitive sensing elements operating from 3.3 V coin-cell or energy-harvesting sources. Use Value: 39 nV/√Hz input noise and 1 pA bias current preserve resolution of ±0.1% RH and ±5 ppm CO₂ measurements without active heating. |
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; identical 3 MHz GBW, 550 µA IQ, but 1.2 V/µs slew rate and 100 pA IIB. | Required where system-level power gating is needed; unsuitable for always-on sensor nodes due to higher bias current. | Select TLV2371IDBVR only if shutdown functionality is mandatory and input impedance >10 GΩ is not required. |
| OPA316IDBVR | Higher 10 MHz GBW, 6.5 V/µs slew rate, 0.15 mV VIO, but 400 µA IQ and 0.2 pA IIB - no rail-to-rail output (150 mV from rail). | Better for high-precision, higher-speed filtering; incompatible where full rail-to-rail swing is needed at low supply voltages. | Choose OPA316IDBVR for applications demanding <100 µV offset and >100 kHz closed-loop bandwidth, accepting reduced output swing margin. |
Compared with TLV271CDBVTG4, TLV2371IDBVR adds power control at the cost of input bias current and slew rate, while OPA316IDBVR trades rail-to-rail output and ultra-low bias for higher speed and lower offset - making TLV271CDBVTG4 optimal for battery-powered, high-impedance, rail-limited signal chains.
Availability
TLV271CDBVTG4 is available at Aetrix Electronics and suitable for smoke detectors, power banks, E-bike motor controllers, and building automation sensors requiring stable component supply, long-term manufacturability, and guaranteed C-grade (0°C to 70°C) performance.
Supply support for TLV271CDBVTG4 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, embedded processing, and connectivity 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 equipment - emphasizing quiescent current efficiency, wide supply range, and high-impedance input compatibility.
FAQ
What is the maximum capacitive load the TLV271CDBVTG4 can drive without external compensation?
The TLV271CDBVTG4 is stable with capacitive loads ≤10 pF when configured as a unity-gain buffer. For loads >10 pF, TI recommends adding a series resistor (RNULL ≥20 Ω) between the output and load capacitance to maintain ≥65° phase margin and prevent ringing. This requirement applies directly to TLV271CDBVTG4 in all standard configurations per Figure 26 of the SLOS351E datasheet.
Does the TLV271CDBVTG4 support split-supply operation, and what are the limits?
Yes, TLV271CDBVTG4 supports split-supply operation from ±1.35 V to ±8 V, as specified in Section 7.2 of the datasheet. The device maintains rail-to-rail output swing and full AC/DC performance across this range. Common-mode input voltage extends from –VS to (+VS –1.35 V), allowing use with grounded sensors in dual-rail systems. TLV271CDBVTG4 does not require dedicated dual-supply variants - the same part number functions identically in single- and split-supply topologies.
What is the input offset voltage specification for TLV271CDBVTG4 over temperature?
The TLV271CDBVTG4 has a maximum input offset voltage of 7 mV across its full operating temperature range (0°C to 70°C), with typical value of 5 mV at 25°C. Offset voltage drift is 2 µV/°C maximum, resulting in worst-case drift of <140 µV over the full range. These values are measured per Section 7.6 of the SLOS351E datasheet and apply specifically to the C-suffix commercial grade version TLV271CDBVTG4.
Can TLV271CDBVTG4 be used in a photodiode transimpedance amplifier (TIA) configuration?
Yes, TLV271CDBVTG4 is well-suited for photodiode TIA applications due to its 1 pA input bias current, 39 nV/√Hz input voltage noise, and rail-to-rail output. Its low input current minimizes dark-current error, while the 3-MHz bandwidth supports response times <1 µs for moderate-gain configurations (e.g., 1 MΩ feedback). Layout best practices - including guard rings and low-leakage PCB materials - are essential to preserve TLV271CDBVTG4's pA-level performance in such circuits.
Is TLV271CDBVTG4 pin-compatible with other members of the TLV27x family?
No - TLV271CDBVTG4 (single-channel, 5-pin SOT-23) is not pin-compatible with TLV272 (dual, 8-pin) or TLV274 (quad, 14-pin). Within the TLV271 variant, the DBV (SOT-23) package has unique pinout: Pin 1 = OUT, Pin 2 = GND, Pin 3 = IN+, Pin 4 = IN−, Pin 5 = VDD. This differs from SOIC (D) and PDIP (P) packages of TLV271, which use 8-pin layouts with NC pins. TLV271CDBVTG4 pinout is defined exclusively for the DBV package per Section 6 of SLOS351E.
TLV271CDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
TLV271CDBVTG4 FAQ
1.How can I place an order for TLV271CDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV271CDBVTG4 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 TLV271CDBVTG4 reliable?
The price and inventory of TLV271CDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV271CDBVTG4 is usually 5 days.
3.What payment methods are accepted for TLV271CDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV271CDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV271CDBVTG4?
TLV271CDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV271CDBVTG4 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 TLV271CDBVTG4?
For technical support, including TLV271CDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV271CDBVTG4 requirements.
6.How does Aetrix verify that TLV271CDBVTG4 is sourced from the original manufacturer or authorized distributors?
All TLV271CDBVTG4 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 TLV271CDBVTG4 meets industry standards.
7.What is the process for return or replacement of TLV271CDBVTG4?
All TLV271CDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV271CDBVTG4, 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 TLV271CDBVTG4 part is unused and in its original packaging.
Return procedure for TLV271CDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV271CDBVTG4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
