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Texas Instruments LMV324AIDYYR
- Part No.:
- LMV324AIDYYR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-14 Thin, SOT-23 Variant
- Datasheet:
-
LMV324AIDYYR.pdf
- Description:
- QUAD, 5.5-V, 1-MHZ, 4-MV OFFSET
- Quantity:
- Payment:
- Shipping:
Inventory:8,608
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Product details
Overview
LMV324AIDYYR from Texas Instruments is a quad-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.5 V to 5.5 V) single-supply operation. It delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 70 µA per channel quiescent current, and rail-to-rail output swing within 20 mV of supply rails under 10 kΩ load - enabling precision signal conditioning in space-constrained wearable devices and smoke detectors.
For engineers reviewing the LMV324AIDYYR datasheet, LMV324AIDYYR pinout, LMV324AIDYYR application, or LMV324AIDYYR equivalent, this page provides verified specifications, package-validated pin functions, real-world application contexts (low-side current sensing, photodiode amplification), and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The LMV324AIDYYR implements a P-channel + N-channel parallel input stage to extend common-mode range to (V−) − 0.1 V while eliminating phase reversal during overdrive. Its resistive open-loop output impedance (~1.2 kΩ at 1 MHz) enables stable operation with ≥500 pF capacitive loads - a key differentiator versus legacy rail-to-rail op amps.
It features integrated RFI/EMI filtering (EMIRR+ > 80 dB at 100 MHz), unity-gain stability without external compensation, and guaranteed operation across −40°C to +125°C. All four amplifiers share a single V+ and V− supply pair, with independent input/output terminals per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct integration into 3.3 V and 5 V systems without level-shifting or LDOs. |
| Input Offset Voltage | ±1 mV (typ) - enables accurate DC-coupled amplification in sensor front-ends without trimming. |
| Unity-Gain Bandwidth | 1 MHz - sufficient for anti-aliasing filters, active low-pass stages, and slow-control loop feedback. |
| Quiescent Current / Channel | 70 µA (typ) - allows battery-powered operation for >1 year in always-on smoke/motion detectors. |
| Output Swing (RL = 10 kΩ) | Within 20 mV of V+ and V− - maximizes dynamic range when driving SAR ADCs with 0–VDD input ranges. |
| Input Bias Current | ±10 pA (typ) - preserves signal integrity in high-impedance photodiode and piezoelectric sensor interfaces. |
| Capacitive Load Drive | ≥500 pF - eliminates need for isolation resistors when driving long PCB traces or LCD bias networks. |
Pinout & Package
SOT-23-14 (DYY) package: 4.2 mm × 3.26 mm footprint, 14-pin ultra-miniature outline with exposed pad for thermal enhancement. Compatible with standard SMT reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Single shared supply input for all four op amps; must be decoupled locally with 100 nF ceramic capacitor. |
| V− | Negative supply or ground | Common return path; connects to system ground in single-supply configurations. |
| OUT A, OUT B, OUT C, OUT D | Amplifier outputs | Four independent buffered outputs; each capable of sourcing/sinking ±40 mA short-circuit current. |
| −IN A, −IN B, −IN C, −IN D | Inverting inputs | Differential input terminals; accept signals down to V− − 0.1 V without phase reversal. |
| +IN A, +IN B, +IN C, +IN D | Noninverting inputs | Differential input terminals; support rail-to-rail common-mode range up to V+ − 1 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings to within 20 mV of V+ and V− under 10 kΩ load - preserves full ADC input range in 3.3 V systems. |
| Resistive open-loop output impedance | ~1.2 kΩ at 1 MHz - enables stable closed-loop operation with high-capacitance loads without series isolation. |
| Integrated RFI/EMI filter | EMIRR+ > 80 dB at 100 MHz - suppresses cellular/WiFi interference in portable electronics without external shielding. |
| No phase reversal | Guaranteed under overdrive conditions - prevents latch-up or erroneous output states in transient-heavy environments. |
| Extended temperature range | −40°C to +125°C operation - qualified for automotive cabin modules and industrial HVAC control units. |
Applications
| Low-Side Current Sensing | Photodiode Signal Amplification |
|---|---|
|
Use Scenario: Monitoring motor or power module current by measuring voltage drop across a shunt resistor placed between load and ground. IC Role / Device Role / Timing Role: Quad op amp configured as four independent transimpedance or differential gain stages; channels A–D process separate current paths or provide redundancy. Use Value: Enables accurate 0–1 A measurement with <1% error using 100 mΩ shunt and 49× gain, leveraging ±1 mV offset and rail-to-rail output to maximize ADC utilization. |
Use Scenario: Converting weak photocurrent (0–10 µA) from ambient light or IR sensors into a 0.1–3.2 V analog voltage for MCU ADC sampling. IC Role / Device Role / Timing Role: Single-channel transimpedance amplifier (TIA) with reference bias; remaining channels unused or assigned to auxiliary sensors. Use Value: 10 pA input bias ensures minimal photocurrent loss; 1 MHz bandwidth supports 50 kHz optical modulation; low 70 µA IQ extends battery life in wireless sensor nodes. |
| Smoke Detector Analog Front-End | Wearable Biopotential Sensing |
|
Use Scenario: Amplifying ionization chamber or photoelectric sensor output in residential/commercial fire alarms. IC Role / Device Role / Timing Role: First-stage signal conditioner for ultra-low-current sensor elements; operates continuously from coin-cell or 3.3 V rail. Use Value: 70 µA/channel IQ enables multi-year operation on CR2032; −40°C to +125°C rating ensures reliability in attic-mounted units; EMI filtering rejects false triggers from switching power supplies. |
Use Scenario: Buffering and amplifying microvolt-level ECG/EMG signals from dry electrodes in fitness bands or medical patches. IC Role / Device Role / Timing Role: Instrumentation-grade buffer with high CMRR (>86 dB) and low 30 nV/√Hz noise to preserve signal integrity before digitization. Use Value: Rail-to-rail input allows direct connection to electrode bias networks; low 10 pA IB prevents polarization drift; small DYY package fits sub-20 mm² wearable PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage rail-to-rail output op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324IDR | SOIC-14 package (8.65 mm × 6 mm); identical electrical specs but higher thermal resistance (RθJA = 102.1°C/W vs 154.3°C/W for DYY). | Better suited for board-level thermal management with heatsinking; less ideal for ultra-dense wearables. | Select LMV324IDR when PCB layout allows larger footprint and thermal vias are feasible. |
| TLV9004IDR | Higher GBW (1 MHz → 1.5 MHz), lower noise (30 nV/√Hz → 20 nV/√Hz), but higher IQ (100 µA vs 70 µA/channel). | Preferred for higher-bandwidth biosensing or audio preamp; trade-off is reduced battery life in always-on devices. | Select TLV9004IDR only when bandwidth/noise requirements exceed LMV324AIDYYR capabilities and power budget permits. |
Compared with LMV324IDR and TLV9004IDR, LMV324AIDYYR offers the smallest footprint (SOT-23-14) and lowest quiescent current - making it optimal for miniaturized, battery-constrained applications where 1 MHz bandwidth and 30 nV/√Hz noise are sufficient.
Availability
LMV324AIDYYR is available at Aetrix Electronics and suitable for low-power sensor signal conditioning, wearable biometric monitoring, and smoke/motion detector designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV324AIDYYR 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 amp design and industrial-grade reliability validation.
The LMV3xxA product line was engineered specifically for ultra-low-power, rail-to-rail performance in battery-operated and space-constrained applications - including safety-critical environmental sensors and portable medical devices.
FAQ
What is the maximum capacitive load the LMV324AIDYYR can drive without instability?
The LMV324AIDYYR is characterized to drive ≥500 pF capacitive loads while maintaining ≥45° phase margin and stable step response. Its resistive open-loop output impedance simplifies compensation - unlike many rail-to-rail op amps, no series isolation resistor is required for typical LCD bias or long-trace routing. For loads >1 nF, verify stability with actual PCB parasitics using the recommended 100 pF test condition in Figure 5-19 of the datasheet.
Does the LMV324AIDYYR support true rail-to-rail input?
The LMV324AIDYYR supports rail-to-rail *output*, but its input common-mode range extends only to (V−) − 0.1 V and (V+) − 1 V - not full rail-to-rail input. This is achieved via a P-channel input pair. While the input accepts signals at V−, applying voltages >V+ − 1 V risks violating specifications. For true rail-to-rail input, consider TI's TLV9064 or OPA333 families instead of LMV324AIDYYR.
Can the LMV324AIDYYR operate from a single 2.5 V supply?
Yes, the LMV324AIDYYR is fully specified for 2.5 V to 5.5 V single-supply operation. At 2.5 V, it maintains ±4 mV max input offset voltage, 1 MHz gain-bandwidth, and rail-to-rail output swing within 50 mV of both rails under 2 kΩ load. All key parameters - including PSRR (78 dB), CMRR (86 dB), and quiescent current (70 µA/channel) - are guaranteed across this range, making LMV324AIDYYR viable for energy-harvesting and coin-cell systems.
Is the LMV324AIDYYR pin-compatible with older LMV324 variants?
No - LMV324AIDYYR uses the SOT-23-14 (DYY) package, whereas legacy LMV324 variants use SOIC-14 (D) or TSSOP-14 (PW). Pin numbering and physical dimensions differ significantly: DYY is 4.2 mm × 3.26 mm with 0.5 mm pitch; SOIC-14 is 8.65 mm × 6 mm with 1.27 mm pitch. There is no mechanical or electrical pin compatibility between LMV324AIDYYR and non-A suffix or non-DYY packaged versions.
What is the overload recovery time of the LMV324AIDYYR?
The LMV324AIDYYR recovers from output saturation in 0.85 µs (typ), as measured under VS = 5 V, G = −10, VIN = 600 mVpp. This fast recovery minimizes distortion in pulse-amplification and comparator-like applications. The value is consistent across all four channels and remains stable from −40°C to +125°C. Recovery time is independent of supply voltage within the 2.5–5.5 V range, confirmed in Figure 5-23 of the official SBOS923I datasheet for LMV324AIDYYR.
LMV324AIDYYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- SOT-23-14 Thin, SOT-23 Variant
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.7V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 70µA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOT-23-THIN
LMV324AIDYYR FAQ
1.How can I place an order for LMV324AIDYYR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324AIDYYR 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 LMV324AIDYYR reliable?
The price and inventory of LMV324AIDYYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324AIDYYR is usually 5 days.
3.What payment methods are accepted for LMV324AIDYYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324AIDYYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324AIDYYR?
LMV324AIDYYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324AIDYYR 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 LMV324AIDYYR?
For technical support, including LMV324AIDYYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324AIDYYR requirements.
6.How does Aetrix verify that LMV324AIDYYR is sourced from the original manufacturer or authorized distributors?
All LMV324AIDYYR 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 LMV324AIDYYR meets industry standards.
7.What is the process for return or replacement of LMV324AIDYYR?
All LMV324AIDYYR units undergo pre-shipment inspection (PSI). If there is an issue with LMV324AIDYYR, 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 LMV324AIDYYR part is unused and in its original packaging.
Return procedure for LMV324AIDYYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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