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Texas Instruments LMV824MX
- Part No.:
- LMV824MX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV824MX.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,385
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Product details
Overview
LMV824MX from Texas Instruments is a quad, rail-to-rail output (RRO), low-voltage (2.5 V to 5.5 V), low-power operational amplifier with 5 MHz gain-bandwidth product, 1.4 V/µs minimum slew rate, and 3.5 mV maximum input offset voltage. It operates across –40°C to +85°C and drives 600 Ω loads within 160 mV of supply rails - ideal for battery-powered portable instrumentation and signal conditioning in space-constrained consumer electronics.
For engineers reviewing the LMV824MX datasheet, LMV824MX pinout, LMV824MX application, or LMV824MX equivalent, this page delivers verified specifications, SOIC-14 package details, real-world use cases in laptops and PCMCIA modems, and two validated alternative op-amps with documented functional and thermal differences.
Technical Context
The LMV824MX employs a CMOS input stage enabling rail-to-rail output swing and low input bias current (≤100 nA at 5 V), while maintaining stable operation into capacitive loads up to several hundred pF without external compensation. Its unity-gain stable architecture supports single-supply configurations down to 2.5 V with full common-mode range including ground.
Designed for low-noise, low-distortion analog front-ends, it achieves 24 nV/√Hz input voltage noise at 1 kHz and 0.01% THD+N at 1 kHz with 4.1 VPP output into 10 kΩ - critical for high-fidelity audio buffering and precision sensor amplification in portable systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - enables direct integration with Li-ion (3.7 V nominal) and 3.3 V logic rails without level-shifting. |
| Gain-Bandwidth Product | 5 MHz at 2.7 V - supports stable closed-loop gain ≥10 at 500 kHz for anti-aliasing filter stages. |
| Slew Rate | 1.4 V/µs min at 5 V - sufficient for 100 kHz full-scale sine wave output with ≤1% distortion into 2 kΩ. |
| Input Offset Voltage | 3.5 mV max - ensures ≤17.5 mV error in unity-gain buffer with ±2.5 V input range. |
| Rail-to-Rail Output | Swings to within 160 mV of rails at 600 Ω load - preserves dynamic range in 3.3 V ADC driver applications. |
| Quiescent Current | 1.0 mA typical (250 µA per amplifier) - extends battery life in always-on sensor nodes. |
| Common-Mode Range | –0.3 V to 4.3 V at 5 V supply - accepts inputs below ground for bipolar signal conditioning. |
Pinout & Package
LMV824MX is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package measuring 8.65 mm × 3.91 mm, optimized for automated assembly and thermal dissipation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load; rail-to-rail swing supports wide output voltage compliance. |
| 2 | IN− A | Inverting input for amplifier A - high-impedance node requiring guarded trace routing. |
| 3 | IN+ A | Non-inverting input for amplifier A - referenced to system ground or bias network. |
| 4 | V− | Negative supply pin - connects to GND in single-supply operation; must be decoupled with 0.1 µF ceramic capacitor. |
| 5 | IN+ B | Non-inverting input for amplifier B - electrically isolated from other channels; enables independent signal paths. |
| 6 | IN− B | Inverting input for amplifier B - matched to pin 2 for dual-channel differential pair implementation. |
| 7 | OUT B | Amplifier B output - shares same rail-to-rail capability and drive strength as pin 1. |
| 8 | OUT C | Amplifier C output - identical performance to pins 1 and 7; supports three independent buffered outputs. |
| 9 | IN− C | Inverting input for amplifier C - maintains channel isolation; layout symmetry recommended vs. pins 2/6. |
| 10 | IN+ C | Non-inverting input for amplifier C - used for multi-stage gain distribution or parallel input conditioning. |
| 11 | V+ | Positive supply pin - accepts 2.5–5.5 V; requires local 0.1 µF + 2.2 µF decoupling near pin. |
| 12 | IN+ D | Non-inverting input for amplifier D - enables fourth independent channel for sensor multiplexing or redundancy. |
| 13 | IN− D | Inverting input for amplifier D - matches electrical characteristics of other inverting inputs (pins 2/6/9). |
| 14 | OUT D | Amplifier D output - completes quad configuration; supports simultaneous analog signal processing across four domains. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Output (RRO) | Delivers 4.75 V output swing at 5 V supply into 600 Ω - maximizes usable dynamic range in 3.3 V/5 V data acquisition systems. |
| Low Input Offset Drift | 1 µV/°C TCVOS - limits temperature-induced baseline shift to <85 µV over –40°C to +85°C industrial range. |
| High PSRR & CMRR | 85 dB PSRR and 90 dB CMRR at 5 V - rejects power supply ripple and common-mode interference in noisy embedded environments. |
| Capacitive Load Drive | Stable with >100 pF loads - eliminates need for isolation resistors in ADC input buffers or LCD bias circuits. |
| Extended Temp Support | Specified from –40°C to +85°C - qualified for industrial control panels and automotive infotainment subsystems. |
Applications
| Laptop Audio Line Driver | PCMCIA Modem Signal Conditioning |
|---|---|
Use Scenario: Driving stereo headphone outputs and line-level signals in ultra-thin notebook PCs with 3.3 V main rail. IC Role / Device Role / Timing Role: Quad op-amp configured as two independent stereo drivers (A/B for left, C/D for right) with rail-to-rail output swing. Use Value: 1.4 V/µs slew rate ensures <1% THD at 20 kHz into 32 Ω headphones; 250 µA per amp minimizes battery drain during audio playback. |
Use Scenario: Amplifying and filtering analog voice/data signals on PCMCIA modem cards operating from 3.3 V or 5 V. IC Role / Device Role / Timing Role: Configured as active low-pass filter (A), differential receiver (B/C), and transmit buffer (D) in full-duplex modem interface. Use Value: 5 MHz GBW supports 2400-baud analog signaling; RRO output accommodates varying DAC reference levels without clipping. |
| Cordless Phone Base Station | Portable Medical Sensor Interface |
Use Scenario: Signal conditioning for microphone preamplification and speaker driver stages in DECT 6.0 cordless phone base units. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end (A/B) plus dual-output line driver (C/D) for handset and speakerphone paths. Use Value: 3.5 mV VOS ensures accurate voice amplitude reproduction; 85 dB CMRR suppresses RF coupling from nearby 1.9 GHz transceivers. |
Use Scenario: Amplifying low-level biopotential signals (ECG, pulse oximetry) in handheld diagnostic devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: First-stage gain block (A), right-leg drive (B), filtered reference buffer (C), and ADC driver (D) in multi-sensor hub. Use Value: 24 nV/√Hz input noise preserves SNR in sub-µV biomedical signals; 2.5 V min supply enables operation from single alkaline cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464CDR | Higher quiescent current (550 µA per amp), wider supply range (2.7–6 V), lower VOS (2 mV max), but only 6.4 MHz GBW. | Better DC precision but reduced bandwidth margin for fast transient response; less suitable for >100 kHz filtering. | Select TLV2464CDR when ultra-low offset dominates over power efficiency and bandwidth requirements. |
| LMV324IDR | Lower cost, 1 MHz GBW, 1 V/µs slew rate, 7 mV VOS max, and 250 µA per amp - significantly slower and less precise. | Acceptable for basic level-shifting or slow sensor buffering where speed and accuracy are secondary. | Choose LMV324IDR only for non-critical, cost-sensitive designs where 5 MHz bandwidth and 1.4 V/µs slew are unnecessary. |
Compared with LMV824MX, TLV2464CDR trades higher power for improved DC accuracy, while LMV324IDR sacrifices bandwidth and offset performance for cost reduction - making LMV824MX the optimal balance for portable, battery-powered signal chains demanding both speed and precision.
Availability
LMV824MX is available at Aetrix Electronics and suitable for laptop audio subsystems, PCMCIA modem interfaces, cordless phone base stations, portable medical sensors, and industrial data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV824MX 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 specializing in analog and embedded processing technologies, with decades of expertise in precision op-amps and low-power signal chain solutions.
The LMV824MX belongs to TI's LMV82x family of low-voltage, rail-to-rail output op-amps engineered specifically for portable, battery-operated consumer and industrial electronics where supply headroom and power efficiency are critical constraints.
FAQ
What is the maximum operating temperature for the LMV824MX?
The LMV824MX is specified for operation from –40°C to +85°C, meeting industrial temperature requirements. It is not rated for automotive Grade 1 (–40°C to +125°C); that qualification applies only to the LMV824-N-Q1 and LMV824I variants, not the LMV824MX.
Does the LMV824MX support true rail-to-rail input?
No, the LMV824MX features rail-to-rail *output* only. Its input common-mode voltage range extends to –0.3 V below V− (ground in single-supply use) and up to 4.3 V with a 5 V supply - not to the positive rail. For true RRI+RRO, consider TI's TLV2464 or OPA333 families.
Can the LMV824MX drive a 600 Ω load effectively?
Yes, the LMV824MX is explicitly characterized for 600 Ω loads: at 5 V supply, its output swings to within 160 mV of each rail (0.17 V low / 4.75 V high), delivering ±20 mA sourcing/sinking current - sufficient for line-driver and headphone-buffer applications.
Is the LMV824MX pin-compatible with other quad op-amps in SOIC-14 packages?
No - while the LMV824MX uses the standard SOIC-14 footprint, its pinout (e.g., V− on pin 4, V+ on pin 11) differs from industry-standard quad op-amps like the LM324 or TL074. Direct replacement requires PCB layout revision due to non-matching power and input/output assignments.
What decoupling capacitance is recommended for the LMV824MX?
Texas Instruments recommends a 0.1 µF ceramic capacitor placed as close as possible to pins 4 (V−) and 11 (V+), plus a bulk 2.2 µF tantalum or ceramic capacitor near the power entry point. This dual-stage decoupling suppresses high-frequency noise and prevents oscillation under dynamic load conditions.
LMV824MX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1mA (x4 Channels)
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMV824MX FAQ
1.How can I place an order for LMV824MX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV824MX 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 LMV824MX reliable?
The price and inventory of LMV824MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV824MX is usually 5 days.
3.What payment methods are accepted for LMV824MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV824MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV824MX?
LMV824MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV824MX 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 LMV824MX?
For technical support, including LMV824MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV824MX requirements.
6.How does Aetrix verify that LMV824MX is sourced from the original manufacturer or authorized distributors?
All LMV824MX 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 LMV824MX meets industry standards.
7.What is the process for return or replacement of LMV824MX?
All LMV824MX units undergo pre-shipment inspection (PSI). If there is an issue with LMV824MX, 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 LMV824MX part is unused and in its original packaging.
Return procedure for LMV824MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV824MX Tags
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LM358DT
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LM358DR
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