My Inquiry
My Account
Texas Instruments LMV111M5X
- Part No.:
- LMV111M5X
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV111M5X.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,682
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV111M5X from Texas Instruments (formerly National Semiconductor) is a rail-to-rail output operational amplifier with integrated V+/2 bias network in a 5-pin SOT23-5 package. It delivers 1 MHz gain-bandwidth, 1 V/µs slew rate, 130 µA supply current, and guaranteed operation from 2.7 V to 5.0 V - enabling compact, low-power signal conditioning in portable microphone preamplifiers and battery-powered sensor interfaces.
For engineers reviewing the LMV111M5X datasheet, LMV111M5X pinout, LMV111M5X application, or LMV111M5X equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and two confirmed alternative op-amps with documented functional trade-offs for single-supply biasing applications.
Technical Context
The LMV111M5X integrates an LMV321-based core op amp with a precision resistor divider that generates a stable V+/2 reference internally - eliminating external bias resistors and reducing PCB area. Its input stage operates within rail-to-rail common-mode range, and its output swings to within 10 mV of either rail under 10 kΩ load at 5 V.
This device targets single-supply systems requiring mid-rail DC bias without layout sensitivity: it maintains 1% resistor ratio matching across temperature, supports −40°C to +85°C industrial operation, and achieves 60° phase margin driving 200 pF capacitive loads in unity-gain configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.0 V - enables direct use with Li-ion, 3.3 V logic, and dual-cell alkaline supplies without regulation. |
| Gain-Bandwidth Product | 1 MHz - supports audio-band filtering and sensor signal amplification up to ~100 kHz closed-loop. |
| Slew Rate | 1 V/µs - sufficient for 100 kHz full-scale sine output at 1.6 Vpp without distortion. |
| Supply Current | 130 µA typical at 5 V - allows continuous operation for >1 year on a 200 mAh coin cell in always-on sensor nodes. |
| Output Swing | V+ −0.01 V / 0.065 V min at RL = 10 kΩ - ensures >98% dynamic range utilization in 5 V systems. |
| Resistor Ratio Matching | 1% typical - guarantees accurate V+/2 bias voltage (±12.5 mV error at 5 V), critical for ADC reference stability. |
| Operating Temperature | −40°C to +85°C - qualified for industrial handhelds, automotive cabin electronics, and outdoor IoT sensors. |
Pinout & Package
LMV111M5X is housed in a 5-pin SOT23-5 package (NS Package Number MA05B), measuring 2.9 mm × 1.6 mm × 1.1 mm, with gull-wing leads and thermal pad omitted. The package supports reflow soldering per JEDEC J-STD-020C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Accepts feedback network connection; high-impedance node (10¹² Ω) for precision gain setting. |
| 2 | Non-Inverting Input (+) | Accepts signal source or V+/2 bias tap; input common-mode range extends to V− and V+ rails. |
| 3 | Output | Delivers rail-to-rail swing into ≥2 kΩ load; capable of sourcing 60 mA / sinking 160 mA short-circuit current. |
| 4 | Ground (V−) | Reference return for both op amp core and internal bias divider; must be low-impedance path to system ground plane. |
| 5 | Supply (V+) | Power input for op amp and bias network; requires local 0.1 µF ceramic bypass capacitor placed ≤2 mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated V+/2 bias network | Eliminates two external 1% resistors and associated board space; reduces BOM count and layout sensitivity to parasitic capacitance. |
| Rail-to-rail output stage | Enables full utilization of ADC input range in single-supply data acquisition systems without level-shifting circuitry. |
| Low 130 µA quiescent current | Permits inclusion in ultra-low-power wake-on-event signal chains where standby current budgets are <1 µA. |
| 1% resistor ratio matching | Ensures stable mid-supply reference across temperature, critical for DC-coupled sensor front-ends and instrumentation amplifiers. |
| SC70-5 / SOT23-5 footprint compatibility | Allows drop-in replacement between LMV111M5X (SOT23-5) and LMV111M7X (SC70-5) in space-constrained layouts with identical pinout. |
Applications
| Microphone Preamplifier | Portable ECG Front-End |
|---|---|
Use Scenario: Single-supply electret microphone biasing and AC-coupled amplification in Bluetooth headsets. IC Role / Device Role / Timing Role: Provides fixed V+/2 DC bias to microphone capsule while amplifying mV-level audio signals with rail-to-rail output swing. Use Value: Reduces component count by 2 resistors and 1 capacitor versus discrete bias + LMV321 solution; improves SNR by minimizing trace pickup via on-die bias generation. | Use Scenario: Biopotential signal amplification in wearable heart-rate monitors with 3.3 V MCU supply. IC Role / Device Role / Timing Role: Acts as first-stage instrumentation amplifier input buffer with mid-supply common-mode reference for ADC input. Use Value: Guarantees 1% bias accuracy over −40°C to +85°C, preventing baseline drift in analog front-end without calibration. |
| Battery Voltage Monitor | IoT Sensor Signal Conditioning |
Use Scenario: Resistive-divider-based battery voltage scaling for 12-bit SAR ADC in asset trackers. IC Role / Device Role / Timing Role: Buffers scaled battery voltage while providing precise V+/2 reference for ADC's internal reference or pseudo-differential input. Use Value: Internal resistor matching eliminates gain error from external resistor tolerance stack-up, improving voltage measurement accuracy to ±0.5%. | Use Scenario: Amplifying thermistor or RTD bridge outputs in wireless temperature nodes powered by CR2032 cells. IC Role / Device Role / Timing Role: Delivers low-noise, low-power gain with DC-coupled output compatible with 1.8 V–3.3 V microcontroller ADC inputs. Use Value: 130 µA supply current extends node lifetime beyond 5 years on a single coin cell when paired with duty-cycled sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail op amp with integrated bias network applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001RT-E/OT | No integrated V+/2 bias network; requires external resistors; 1 µA supply current; 1 MHz GBW. | Lacks monolithic bias function - adds 2 resistors and layout sensitivity; better for ultra-low-power sleep modes. | Select when lowest possible quiescent current dominates over BOM count and board area. |
| TLC2271CDBVR | Includes V+/2 bias but uses trimmed thin-film resistors (0.1% matching); 1.1 mA supply current; 2.2 MHz GBW. | Higher power and cost; superior DC accuracy for precision instrumentation, not portable low-power use. | Select only when <0.1% bias accuracy is required and 1.1 mA supply current is acceptable. |
Compared with MCP6001RT-E/OT and TLC2271CDBVR, the LMV111M5X uniquely balances ultra-small size, integrated bias, and sub-200 µA operation - making it optimal for space- and energy-constrained portable signal chains where external resistor placement would degrade noise immunity.
Availability
LMV111M5X is available at Aetrix Electronics and suitable for portable medical devices, battery-powered sensor nodes, and consumer audio accessories requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for LMV111M5X 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 legacy roots in National Semiconductor's precision analog portfolio.
The LMV111M5X belongs to TI's LMV low-voltage op amp family, engineered specifically for space-constrained, single-supply portable electronics where integration, power efficiency, and rail-to-rail performance are critical design requirements.
FAQ
What is the exact package type and marking for LMV111M5X?
The LMV111M5X is supplied in a 5-pin SOT23-5 package (NS Package Number MA05B) with top-side marking "A37A". It ships in 3,000-unit tape-and-reel format and is pin-compatible with the SC70-5 variant LMV111M7X, though thermal resistance differs (265°C/W vs. 478°C/W).
Does LMV111M5X require external bias resistors for V+/2 generation?
No - the LMV111M5X integrates a matched resistor divider that generates a precise V+/2 reference internally. This eliminates the need for external 1% resistors, reduces PCB area by ~2.5 mm², and avoids layout-induced errors from stray capacitance coupling into the bias node.
What is the minimum recommended supply bypass capacitance for LMV111M5X?
A 0.1 µF ceramic capacitor is mandatory and must be placed within 2 mm of the LMV111M5X V+ pin and ground. For systems with noisy power rails or fast digital switching nearby, adding a parallel 1 µF solid tantalum or 10 µF aluminum electrolytic capacitor further suppresses low-frequency ripple and prevents supply-line oscillation.
Can LMV111M5X drive capacitive loads greater than 200 pF?
The LMV111M5X is stable with up to 200 pF in unity-gain configuration. For heavier loads, a series isolation resistor (50–100 Ω) between the output and capacitive load restores phase margin. Without this, oscillation or overshoot occurs due to pole-induced phase lag from output impedance interacting with CL.
Is LMV111M5X suitable for automotive applications?
The LMV111M5X is rated for −40°C to +85°C operation and meets industrial specifications, but it is not AEC-Q200 qualified or designated for automotive use by TI. For cabin or infotainment systems requiring automotive qualification, designers should select TI's TLVx321-Q1 or similar AEC-Q200 op amps instead of LMV111M5X.
LMV111M5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- SOT-23-5
LMV111M5X FAQ
1.How can I place an order for LMV111M5X through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV111M5X 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 LMV111M5X reliable?
The price and inventory of LMV111M5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV111M5X is usually 5 days.
3.What payment methods are accepted for LMV111M5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV111M5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV111M5X?
LMV111M5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV111M5X 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 LMV111M5X?
For technical support, including LMV111M5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV111M5X requirements.
6.How does Aetrix verify that LMV111M5X is sourced from the original manufacturer or authorized distributors?
All LMV111M5X 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 LMV111M5X meets industry standards.
7.What is the process for return or replacement of LMV111M5X?
All LMV111M5X units undergo pre-shipment inspection (PSI). If there is an issue with LMV111M5X, 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 LMV111M5X part is unused and in its original packaging.
Return procedure for LMV111M5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV111M5X 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…
