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Texas Instruments LMV611MFX/NOPB
- Part No.:
- LMV611MFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV611MFX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,261
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Product details
Overview
LMV611MFX/NOPB from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It operates from 1.8 V to 5.5 V, delivers 1.4-MHz gain-bandwidth product, draws only 100 µA supply current per channel, and supports rail-to-rail output swing within 30 mV of either rail under 2-kΩ load - enabling precision signal conditioning in battery-powered audio pre-amplifiers and supply current monitoring circuits.
For engineers reviewing the LMV611MFX/NOPB datasheet, LMV611MFX/NOPB pinout, LMV611MFX/NOPB application, or LMV611MFX/NOPB equivalent, key selection criteria include its 1.8-V minimum supply capability, −40°C to +125°C operating temperature range, 4-mV max input offset voltage, rail-to-rail common-mode input (extending 200 mV beyond rails), and SC70-5 package footprint for space-constrained portable electronics design.
Technical Context
The LMV611MFX/NOPB uses a CMOS input stage enabling ultra-low input bias current (15 nA typical) and rail-to-rail input common-mode range (V– – 0.2 V to V+ + 0.2 V at 25°C). Its internal compensation ensures unity-gain stability with 1.4-MHz GBW and 67° phase margin at 1.8 V supply.
It achieves rail-to-rail output swing via complementary push-pull output stage: output reaches within 30 mV of V+ and V– under 2-kΩ load at 1.8 V, and sustains 80-mV rail proximity under 600-Ω load - critical for maximizing dynamic range in single-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct operation from single-cell Li-ion (3.0–3.7 V), two-cell alkaline (2.4–3.2 V), or regulated 1.8/2.7/3.3/5.0 V rails. |
| Gain-Bandwidth Product | 1.4 MHz - supports stable unity-gain buffer or gain-of-10 amplification up to ~140 kHz with adequate phase margin. |
| Supply Current per Channel | 100 µA typical - allows integration into always-on sensor interfaces or battery-monitoring circuits with multi-year runtime. |
| Input Offset Voltage | Max 4 mV - limits DC error to ≤0.4% of full-scale output in 1-V reference applications without trimming. |
| Output Swing (2-kΩ load) | Within 30 mV of V+ and V– at 1.8 V - preserves >96% of available output voltage range in low-voltage systems. |
| Input Common-Mode Range | V– – 0.2 V to V+ + 0.2 V at 25°C - accepts signals below ground or above supply, simplifying level-shifting in mixed-supply designs. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin, industrial control, and extended-environment portable equipment. |
Pinout & Package
The LMV611MFX/NOPB is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for minimal PCB area in handheld and wearable devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: +IN | Noninverting input | High-impedance CMOS node accepting signals down to V– – 0.2 V; used for positive feedback paths or high-side sensing inputs. |
| 2: V– | Negative supply | Reference return for dual-supply operation or ground connection in single-supply configurations; must be low-impedance. |
| 3: –IN | Inverting input | High-impedance CMOS node; connects to feedback network in inverting amplifier or transimpedance configurations. |
| 4: OUTPUT | Amplifier output | Capable of sourcing/sinking ≥8 mA; drives 2-kΩ loads to within 30 mV of rails at 1.8 V - suitable for ADC driver or analog switch interface. |
| 5: V+ | Positive supply | Accepts 1.8–5.5 V; decoupling capacitor (0.1 µF) required within 1 cm for stability and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply: input accepts signals from V– – 0.2 V to V+ + 0.2 V; output swings to within 30 mV of both rails under 2-kΩ load. |
| 100-µA quiescent current | Reduces power consumption by >5× versus standard op-amps, extending battery life in portable medical sensors and IoT endpoint nodes. |
| 1.4-MHz bandwidth at 100 µA | Delivers usable AC performance (e.g., audio preamp up to 140 kHz) without increasing supply current - rare efficiency in low-power op-amps. |
| Specified at 1.8 V, 2.7 V, and 5 V | Guarantees consistent performance across common battery and regulator voltages - eliminates re-characterization when migrating between power domains. |
| −40°C to +125°C operation | Supports deployment in under-hood automotive modules, industrial motor controllers, and outdoor instrumentation without derating. |
Applications
| Audio Pre-Amplifier | Supply Current Monitoring |
|---|---|
Use Scenario: Amplifying microphone or line-level signals in Bluetooth headsets and voice-controlled wearables powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp configured as noninverting amplifier with gain of 10–100, driving low-noise ADC input. Use Value: 60 nV/√Hz input voltage noise at 10 kHz and 0.023% THD enable clean audio capture without external filtering or power-hungry components. |
Use Scenario: Measuring charge/discharge current in smart battery packs using a small-value sense resistor (e.g., 10 mΩ) and microcontroller ADC. IC Role / Device Role / Timing Role: Precision current-sense amplifier in high-side or low-side configuration, converting mV-level RSENSE voltage to 0–1.8 V output range. Use Value: 4-mV max VOS and rail-to-rail input allow accurate sub-1% current measurement across full battery voltage range (2.5–4.2 V) without level-shifting circuitry. |
| Battery Voltage Monitoring | Portable Sensor Interface |
Use Scenario: Scaling full-cell battery voltage (3.0–4.2 V) to fit 1.8-V ADC input range in compact medical patches or asset trackers. IC Role / Device Role / Timing Role: Unity-gain buffer or resistive divider follower ensuring high-impedance isolation between battery and ADC sampling circuit. Use Value: Rail-to-rail input accepts 0–4.2 V directly; 100-µA supply current adds negligible load to aging batteries during periodic voltage checks. |
Use Scenario: Conditioning output from low-output-impedance analog sensors (e.g., temperature, gas, or pressure) in handheld diagnostic tools. IC Role / Device Role / Timing Role: Signal conditioner providing gain, offset correction, and drive capability for 12-bit SAR ADCs with 1–2 MS/s sampling. Use Value: 1.4-MHz GBW supports settling in <1 µs for 12-bit accuracy; 123-dB amp-to-amp isolation prevents crosstalk in multi-channel sensor arrays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Lower GBW (1 MHz), higher VOS (max 4.5 mV), same 1.8-V min supply and SC70-5 package. | Suitable for DC-coupled sensor buffering where bandwidth <1 MHz suffices; less ideal for audio or fast-settling applications. | Select when cost sensitivity outweighs need for 1.4-MHz bandwidth or tighter VOS spec. |
| TLV6001IDBVR | Higher supply current (150 µA), lower input bias current (1 pA), same 1.8-V operation and SC70-5 footprint. | Better for ultra-high-impedance pH or photodiode sensors; trade-off is 50% higher quiescent power vs LMV611MFX/NOPB. | Prefer when femtoamp-level input bias is mandatory, and 50-µA extra supply current is acceptable. |
Compared with MCP6001T-E/OT and TLV6001IDBVR, the LMV611MFX/NOPB uniquely balances 1.4-MHz bandwidth, 100-µA supply current, and 4-mV VOS in SC70-5 - making it optimal for portable audio, battery monitoring, and general-purpose low-voltage signal conditioning where all three parameters matter.
Availability
LMV611MFX/NOPB is available at Aetrix Electronics and suitable for portable audio pre-amplifiers, battery voltage/current monitoring systems, and low-power sensor interface circuits requiring stable component supply across industrial, medical, and consumer production programs.
Supply support for LMV611MFX/NOPB 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, power management, and signal chain solutions.
The LMV61x family was designed specifically for low-voltage, low-power general-purpose amplification in area-constrained portable and battery-operated electronics - emphasizing rail-to-rail operation, wide temperature range, and guaranteed 1.8-V performance.
FAQ
What is the minimum supply voltage supported by the LMV611MFX/NOPB?
The LMV611MFX/NOPB is fully specified and functional down to 1.8 V, with guaranteed electrical performance including gain-bandwidth, input offset voltage, and output swing at this voltage. It operates across 1.8 V to 5.5 V, making it compatible with single-cell Li-ion, two-cell alkaline, and standard logic supply rails. The LMV611MFX/NOPB maintains rail-to-rail input and output functionality even at 1.8 V.
Does the LMV611MFX/NOPB support rail-to-rail input and output operation?
Yes, the LMV611MFX/NOPB supports true rail-to-rail input (common-mode range extends 200 mV beyond both supply rails) and rail-to-rail output (swings within 30 mV of V+ and V– under 2-kΩ load at 1.8 V). This capability enables full utilization of low supply voltages in single-supply systems such as battery-powered sensors and audio front-ends. The LMV611MFX/NOPB achieves this without external charge pumps or auxiliary supplies.
What package type is used for the LMV611MFX/NOPB?
The LMV611MFX/NOPB is packaged in a 5-pin SC70 (also referenced as DCK) package measuring 2.00 mm × 1.25 mm - one of the smallest surface-mount op-amp footprints available. This package is distinct from the SOT-23 variant also listed for LMV611; the MFX/NOPB suffix specifically denotes the SC70-5 version. The LMV611MFX/NOPB's compact size supports high-density layouts in wearables, hearing aids, and other miniaturized electronics.
What is the maximum input offset voltage for the LMV611MFX/NOPB?
The LMV611MFX/NOPB has a maximum input offset voltage of 4 mV over temperature (−40°C to +125°C), as specified in the official Texas Instruments datasheet. This value applies to the single-channel LMV611 variant and is tested across all supply voltages (1.8 V, 2.7 V, 5 V). The LMV611MFX/NOPB's low VOS enables accurate DC-coupled amplification in precision monitoring applications without requiring external trimming or calibration.
Can the LMV611MFX/NOPB drive a 600-Ω load effectively?
Yes, the LMV611MFX/NOPB can drive a 600-Ω load with output swing within 80 mV of each rail at 1.8 V supply, delivering usable dynamic range in line-driver and ADC-buffer applications. It sources/sinks up to 8 mA (sourcing) and 9 mA (sinking) under short-circuit conditions, and maintains stability with capacitive loads up to 100 pF. The LMV611MFX/NOPB's output stage is optimized for low-voltage drive capability without external boost circuitry.
LMV611MFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.42V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 14 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 116µA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV611MFX/NOPB FAQ
1.How can I place an order for LMV611MFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV611MFX/NOPB 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 LMV611MFX/NOPB reliable?
The price and inventory of LMV611MFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV611MFX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV611MFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV611MFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV611MFX/NOPB?
LMV611MFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV611MFX/NOPB 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 LMV611MFX/NOPB?
For technical support, including LMV611MFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV611MFX/NOPB requirements.
6.How does Aetrix verify that LMV611MFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV611MFX/NOPB 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 LMV611MFX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV611MFX/NOPB?
All LMV611MFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV611MFX/NOPB, 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 LMV611MFX/NOPB part is unused and in its original packaging.
Return procedure for LMV611MFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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