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Texas Instruments LMV111M7X
- Part No.:
- LMV111M7X
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV111M7X.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,906
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Product details
Overview
LMV111M7X from Texas Instruments (formerly National Semiconductor) is a rail-to-rail output operational amplifier with integrated V+/2 bias network in SC70-5 package, delivering 1 MHz gain-bandwidth product, 1 V/µs slew rate, and 130 µA supply current at 5 V. It enables compact microphone preamplifiers and portable active filters by eliminating external bias resistors.
For engineers reviewing the LMV111M7X datasheet, LMV111M7X pinout, LMV111M7X application, or LMV111M7X equivalent, this page provides verified package mapping, confirmed resistor ratio matching (1% typ), thermal resistance (478°C/W), guaranteed 2.7 V–5.0 V operation, and real-world design implications for low-noise signal conditioning near source.
Technical Context
The LMV111M7X integrates an LMV321-based op amp core with a precision-resistor-divider bias network generating V+/2 reference internally. Its architecture supports single-supply operation without external resistive dividers, reducing PCB area and parasitic capacitance.
It operates across −40°C to +85°C with rail-to-rail output swing (e.g., 0.065 V min / V+−0.01 V max at RL = 10 kΩ, 5 V), 60° phase margin, and stable unity-gain performance into 200 pF capacitive load-enabling direct drive of ADC inputs or analog switches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 1 MHz - sets usable small-signal bandwidth for audio and sensor signal conditioning up to ~100 kHz closed-loop. |
| Slew Rate | 1 V/µs - supports clean 100 kHz sine-wave output at 10 Vpp without distortion in unity-gain buffer configurations. |
| Supply Current | 130 µA (typ @ 5 V) - enables >10-year battery life in coin-cell-powered IoT sensors when biased continuously. |
| Input Voltage Range | 0 V to V+ - allows direct interfacing with single-ended CMOS logic or resistive divider outputs without level-shifting. |
| Resistor Ratio Matching | 1% (typ) - ensures accurate V+/2 bias point stability across temperature, critical for DC-coupled instrumentation front-ends. |
| Thermal Resistance θJA | 478°C/W (SC70-5) - limits continuous power dissipation to ~21 mW at TA = 85°C, constraining high-current output use. |
Pinout & Package
LMV111M7X is housed in a 5-pin SC70-5 package (NSC drawing MAA05A), measuring 2.0 mm × 1.25 mm × 0.95 mm, optimized for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Accepts feedback network input; high-impedance node requiring guard ring layout for <100 nA bias current error. |
| 2 | Non-Inverting Input (+) | Connects to V+/2 bias node internally; externally accessible only as input for non-inverting configurations. |
| 3 | Output | Rail-to-rail capable (0.065 V to V+−0.01 V @ 10 kΩ); drives 2 kΩ loads directly but requires isolation resistor for >200 pF. |
| 4 | GND | Ground reference for both op amp core and internal bias network; must connect to low-impedance analog ground plane. |
| 5 | V+ | Positive supply rail (2.7 V–5.0 V); requires 0.1 µF ceramic bypass capacitor placed ≤2 mm from pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated V+/2 bias network | Eliminates two external 1% resistors and associated board area, reducing component count and layout sensitivity to trace parasitics. |
| Rail-to-rail output swing | Enables full dynamic range utilization in 3.3 V or lower systems-e.g., preserves 12-bit ADC resolution without level-shifting circuitry. |
| Low 130 µA quiescent current | Permits always-on signal monitoring in battery-powered wearables without compromising runtime budget. |
| Stable into 200 pF capacitive load | Supports direct connection to sampling capacitors in SAR ADCs or RF switch control lines without added series resistance. |
| Guaranteed operation at 2.7 V | Allows interoperability with Li-ion battery discharge profiles down to 2.8 V while maintaining 1 MHz bandwidth and 1 V/µs slew rate. |
Applications
| Microphone Preamplifier | Portable Active Filter |
|---|---|
|
Use Scenario: Low-noise amplification of electret microphone output in Bluetooth earbuds with 3.3 V supply. IC Role / Device Role / Timing Role: Single-supply non-inverting amplifier with internal V+/2 bias enabling AC-coupled input and rail-to-rail output swing. Use Value: Reduces BOM by removing dual-resistor bias network and improves SNR by minimizing trace length between mic capsule and LMV111M7X input. |
Use Scenario: 2nd-order low-pass filtering of sensor signals in handheld medical glucose meters. IC Role / Device Role / Timing Role: Dual-function device acting as both filter op amp and bias reference generator for downstream comparator thresholds. Use Value: Enables compact 2-layer PCB design with <15 mm² total footprint for filter stage, meeting IEC 60601 leakage current limits via low IS. |
| Battery-Powered Data Logger | Mobile Communication Front-End |
|
Use Scenario: Signal conditioning for thermistor and photodiode inputs in solar-powered environmental monitors. IC Role / Device Role / Timing Role: Rail-to-rail input/output op amp configured as transimpedance amplifier and buffer, powered from 3.6 V Li-SOCl₂ cell. Use Value: Maintains 1 MHz GBWP and 1 V/µs slew rate across full battery voltage range (3.6 V → 2.8 V), ensuring consistent acquisition timing. |
Use Scenario: Biasing and buffering of RF power detector outputs in GSM/GPRS module baseband sections. IC Role / Device Role / Timing Role: Provides stable V+/2 reference for detector diode bias while buffering its analog output to ADC input. Use Value: Minimizes inter-stage coupling noise via integrated bias, improving RSSI measurement accuracy by ≥3 dB over discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier with integrated bias network applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV112M7X | Dual-channel version in same SC70-5 package; 130 µA/channel, identical GBWP and bias network specs. | Required when two independent biased amplifiers are needed on same board area-e.g., stereo microphone preamp. | Select LMV112M7X only if dual-channel functionality is required; LMV111M7X remains optimal for single-channel cost-sensitive designs. |
| TLV9001IDBVR | Single-channel rail-to-rail op amp (1 MHz GBWP, 2 V/µs SR) with no integrated bias network; 50 µA supply current. | Lacks internal V+/2 generator-requires external 1% resistor pair, increasing layout complexity and thermal drift error. | Choose TLV9001IDBVR only when ultra-low quiescent current (<60 µA) outweighs board space and bias accuracy requirements. |
Compared with LMV111M7X, LMV112M7X offers channel doubling without footprint penalty but doubles supply current, while TLV9001IDBVR saves 80 µA at the cost of added external components and reduced bias stability-making LMV111M7X the optimal balance for space-constrained, single-channel, precision-biased applications.
Availability
LMV111M7X is available at Aetrix Electronics and suitable for microphone preamplifiers, portable active filters, and battery-powered data loggers requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for LMV111M7X 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 (TI) is a global semiconductor leader delivering analog and embedded processing solutions, with heritage from National Semiconductor's precision analog portfolio.
The LMV111M7X belongs to TI's low-power, space-optimized op amp family designed specifically for portable and battery-powered signal conditioning where integration, size, and supply efficiency are critical.
FAQ
What is the package type and marking for LMV111M7X?
The LMV111M7X is supplied in a 5-pin SC70-5 package (NSC drawing MAA05A) with top-side marking "A42". It ships in 3,000-unit tape-and-reel format, distinct from the 1,000-unit LMV111M7 variant. The SC70-5 footprint measures 2.0 mm × 1.25 mm and requires reflow-compatible solder paste and controlled thermal profile per TI's SMT guidelines.
Does LMV111M7X require external bypass capacitors, and what value is recommended?
Yes, LMV111M7X requires a 0.1 µF ceramic bypass capacitor placed within 2 mm of the V+ pin and connected to a solid analog ground plane. This is mandatory to prevent low-frequency oscillation and high-frequency instability, as confirmed in the DS101262 datasheet Section 1.0. Larger bulk capacitance (e.g., 10 µF tantalum) may be added in parallel for systems with noisy power rails.
Can LMV111M7X drive capacitive loads greater than 200 pF?
LMV111M7X is characterized for stable unity-gain operation into 200 pF. For heavier loads (e.g., >300 pF), TI recommends adding a 50 Ω–100 Ω isolation resistor between the output and load, as shown in Figure 1 of DS101262. Without this resistor, phase margin degrades below 60°, risking overshoot or oscillation in pulse responses.
What is the guaranteed operating supply voltage range for LMV111M7X?
LMV111M7X is fully specified and guaranteed over 2.7 V to 5.0 V supply voltage, with all key parameters-including gain-bandwidth product, slew rate, and output swing-validated at both endpoints. Operation below 2.7 V is not characterized and may result in degraded bandwidth or increased input offset voltage.
How does the internal V+/2 bias network function in LMV111M7X?
The LMV111M7X integrates a laser-trimmed resistor divider that generates a precise V+/2 reference internally, connected to the non-inverting input. This eliminates external bias resistors while maintaining 1% resistor ratio matching across temperature. The node is not user-accessible as a standalone reference-it functions solely to set the op amp's DC operating point for single-supply AC-coupled applications.
LMV111M7X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- -
- Current - Supply:
- 130µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LMV111M7X FAQ
1.How can I place an order for LMV111M7X through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV111M7X 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 LMV111M7X reliable?
The price and inventory of LMV111M7X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV111M7X is usually 5 days.
3.What payment methods are accepted for LMV111M7X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV111M7X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV111M7X?
LMV111M7X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV111M7X 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 LMV111M7X?
For technical support, including LMV111M7X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV111M7X requirements.
6.How does Aetrix verify that LMV111M7X is sourced from the original manufacturer or authorized distributors?
All LMV111M7X 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 LMV111M7X meets industry standards.
7.What is the process for return or replacement of LMV111M7X?
All LMV111M7X units undergo pre-shipment inspection (PSI). If there is an issue with LMV111M7X, 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 LMV111M7X part is unused and in its original packaging.
Return procedure for LMV111M7X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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