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Texas Instruments LMV118MFX
- Part No.:
- LMV118MFX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
LMV118MFX.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,394
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Product details
Overview
LMV118MFX from Texas Instruments is a low-voltage, rail-to-rail output operational amplifier with shutdown capability, designed for high-speed signal conditioning in portable and multiplexed systems. It delivers 45 MHz bandwidth, 40 V/μs slew rate, ±20 mA linear output current, and operates from 2.7 V to 12 V supply - enabling use as a 2.7-V clock buffer or active filter stage in battery-powered instrumentation.
For engineers reviewing the LMV118MFX datasheet, LMV118MFX pinout, LMV118MFX application, or LMV118MFX equivalent, this page provides verified specifications, SOT-23-6 pin mapping, real-world multiplexing implementation details, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The LMV118MFX uses TI's VIP10 dielectrically isolated bipolar process to maintain stable 45 MHz bandwidth and 40 V/μs slew rate across 2.7–12 V supply range. Its complementary bipolar input stage achieves 40 nV/√Hz input voltage noise and 0.75 pA/√Hz current noise at 100 kHz.
Shutdown mode (active-high SD pin) reduces supply current to 15 μA while placing the output in high-impedance state; turnon/turnoff times are 210 ns and 500 ns respectively at 5 V. Input common-mode range extends to −0.3 V, supporting single-supply operation down to 2.7 V with 20 mV rail-to-rail output swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3-dB Bandwidth | 45 MHz - supports clean amplification of signals up to ~28 MHz fundamental in unity-gain buffer configuration |
| Slew Rate | 40 V/μs - enables <10 ns rise/fall times for 1-V step signals, critical for clock buffering and fast transient response |
| Supply Voltage Range | 2.7 V to 12 V - allows direct integration into 3.3-V, 5-V, and dual ±5-V systems without level-shifting |
| Output Current | ±20 mA - drives 1-kΩ loads to rails or sustains 2.7-V 2:1 MUX switching with minimal droop |
| Shutdown Current | 15 μA - reduces system standby power by >97% vs. 600 μA active mode, essential for battery life extension |
| Input Offset Drift | ±5 μV/°C - ensures <0.5-mV total offset shift over −40°C to +85°C, suitable for precision transducer interfaces |
| PSRR @ 100 kHz | 85 dB - rejects high-frequency supply noise in noisy DC-DC converter environments |
Pinout & Package
SOT-23-6 (DBV) package, 2.90 mm × 1.60 mm body size, 0.95 mm max height, thermal resistance RθJA = 182.7°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUTPUT | Amplifier output | Rail-to-rail capable (20 mV from rails), ±20 mA drive, high-Z during shutdown |
| 2: V− | Negative supply | Reference for single-supply (0 V) or dual-supply (−5 V) operation; ties to ground or negative rail |
| 3: +IN | Non-inverting input | Differential input node with −0.3 V to 4 V common-mode range (at 5 V); 3 MΩ input resistance |
| 4: −IN | Inverting input | Differential input node; matched to +IN for CMRR ≥77 dB; accepts feedback network connections |
| 5: SD | Shutdown control | Active-high logic input; <20 μA leakage; requires ≤20 kΩ pull-down to V− for normal operation |
| 6: V+ | Positive supply | Highest potential supply pin; supports 2.7–12 V; decoupling capacitor required adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | 20 mV from either supply rail at 1-kΩ load - maximizes dynamic range in 2.7-V systems |
| Micro-power shutdown | 15 μA quiescent current with Hi-Z output - enables power-gating in multiplexed signal paths |
| Stable high-speed performance | 45 MHz BW and 40 V/μs SR maintained across 2.7–12 V supply - eliminates gain/speed recalibration |
| Low-noise input stage | 40 nV/√Hz voltage noise + 0.75 pA/√Hz current noise at 100 kHz - preserves SNR in sensor front-ends |
| Robust input protection | Internal clamping diodes and ±2-kV HBM ESD rating - withstands board handling and I/O stress |
Applications
| High-Speed Clock Buffer/Driver | Multiplexing Applications (LMV118) |
|---|---|
Use Scenario: Driving 15.36 MHz sine-wave clock from crystal oscillator to multiple downstream logic blocks in portable medical device. IC Role / Device Role / Timing Role: Low-jitter buffer with rail-to-rail swing and 45 MHz bandwidth ensures clean edge integrity and minimal duty-cycle distortion. Use Value: 20 mV rail margin and 40 V/μs slew rate prevent pulse rounding at 15.36 MHz, maintaining setup/hold timing margins. |
Use Scenario: Implementing 2:1 analog MUX on 2.7-V supply using dual LMV118MFX units controlled by inverted select lines. IC Role / Device Role / Timing Role: One amplifier active while other in shutdown (Hi-Z), enabling glitch-free channel switching with <500 ns transition. Use Value: 210 ns turnon time and controlled output impedance during transition eliminate crosstalk and switching spikes. |
| Current Sense Amplifier | High-Speed Transducer Amplifier |
Use Scenario: Amplifying mV-level shunt voltage in 3.3-V motor controller with bidirectional current detection. IC Role / Device Role / Timing Role: Precision gain stage with ±20 mA output drives ADC input while rejecting supply ripple via 85 dB PSRR. Use Value: −0.3 V to 1.7 V input common-mode range accommodates low-side sensing below ground reference. |
Use Scenario: Conditioning piezoelectric sensor output in ultrasonic flow meter operating from 5-V supply. IC Role / Device Role / Timing Role: Wideband transimpedance or voltage amplifier preserving signal fidelity up to 20 MHz. Use Value: 40 nV/√Hz input noise and 45 MHz bandwidth retain weak high-frequency transducer signals above noise floor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-voltage op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2782IDR | 25 MHz BW, 10 V/μs SR, no shutdown, 1.8–5.5 V supply | Lacks shutdown; lower speed limits use in >10 MHz clock paths | Choose when shutdown is unnecessary and supply is constrained to ≤5.5 V |
| OPA356AIDBVR | 200 MHz BW, 360 V/μs SR, no shutdown, 2.5–5.5 V supply | Higher speed/noise (20 nV/√Hz), but 2.5-mA supply current vs. 600 μA | Choose when bandwidth >100 MHz is required and power budget allows 4× higher quiescent current |
Compared with TLV2782IDR and OPA356AIDBVR, the LMV118MFX uniquely balances 45 MHz bandwidth, rail-to-rail output, 15 μA shutdown, and 2.7-V operation - making it optimal for battery-powered multiplexed signal chains where speed, power, and supply flexibility intersect.
Availability
LMV118MFX is available at Aetrix Electronics and suitable for high-speed clock buffering, analog multiplexing, current sensing, and transducer interfacing requiring stable component supply across industrial, medical, and portable electronics programs.
Supply support for LMV118MFX 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, data converters, and power management ICs.
The LMV118MFX belongs to TI's LMV11x family of low-voltage, high-speed op-amps engineered for rail-to-rail output performance and micro-power shutdown in space-constrained, battery-operated systems.
FAQ
What is the shutdown threshold voltage for LMV118MFX?
The LMV118MFX shutdown pin (SD) activates when voltage exceeds 1.95 V at 2.7 V supply or 4.25 V at 5 V supply, with typical threshold of 2.3 V (2.7 V) or 4.6 V (5 V). Below this threshold - specifically ≤0.4 V from V+ - the device remains active. This ensures reliable disable under brown-out conditions while allowing standard logic-level control.
Does LMV118MFX support dual-supply operation?
Yes, LMV118MFX supports dual-supply operation from ±1.35 V to ±6 V (i.e., total supply up to 12 V), with full specification compliance across −40°C to +85°C. Input common-mode range extends to −5.3 V at ±5 V supply, and output swings to within 20 mV of both rails - enabling true bipolar signal handling without level-shifting circuitry.
What is the maximum output current capability of LMV118MFX?
The LMV118MFX delivers ±20 mA linear output current when output voltage is within 0.5 V of either supply rail, per Electrical Characteristics tables. Short-circuit current reaches 32 mA sinking and 35 mA sourcing at 5 V supply. These values remain stable across temperature and supply voltage, enabling direct driving of moderate-impedance loads like ADC inputs or small relays.
Can LMV118MFX be used in unity-gain stable configurations?
Yes, LMV118MFX is unity-gain stable per its datasheet specifications and typical application circuits. The 45 MHz −3-dB bandwidth and 40 V/μs slew rate are characterized under AV = +1 condition with 200 mVPP output, confirming stability without external compensation. Layout best practices (short traces, local decoupling) are recommended to preserve phase margin.
What package type is used for LMV118MFX?
LMV118MFX is supplied in the SOT-23-6 (DBV) package: 2.90 mm × 1.60 mm body size, 0.95 mm maximum height, with gull-wing leads. Pin 1 is marked by a dot; pinout matches TI's standard DBV pin configuration - OUTPUT, V−, +IN, −IN, SD, V+ - confirmed in the "Pin Configuration and Functions" section of SNOSA87C.
LMV118MFX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 35V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 45 MHz
- Current - Input Bias:
- 400 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
LMV118MFX FAQ
1.How can I place an order for LMV118MFX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV118MFX 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 LMV118MFX reliable?
The price and inventory of LMV118MFX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV118MFX is usually 5 days.
3.What payment methods are accepted for LMV118MFX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV118MFX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV118MFX?
LMV118MFX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV118MFX 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 LMV118MFX?
For technical support, including LMV118MFX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV118MFX requirements.
6.How does Aetrix verify that LMV118MFX is sourced from the original manufacturer or authorized distributors?
All LMV118MFX 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 LMV118MFX meets industry standards.
7.What is the process for return or replacement of LMV118MFX?
All LMV118MFX units undergo pre-shipment inspection (PSI). If there is an issue with LMV118MFX, 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 LMV118MFX part is unused and in its original packaging.
Return procedure for LMV118MFX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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