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Texas Instruments LM324LVIDYYR
- Part No.:
- LM324LVIDYYR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-14 Thin, SOT-23 Variant
- Datasheet:
-
LM324LVIDYYR.pdf
- Description:
- QUAD, 5.5-V, 1-MHZ, 3-MV OFFSET
- Quantity:
- Payment:
- Shipping:
Inventory:4,160
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Product details
Overview
LM324LVIDYYR from Texas Instruments is a quad-channel, low-voltage operational amplifier designed for cost-sensitive, single-supply signal conditioning in battery-powered and industrial systems. It operates from 2.7 V to 5.5 V, delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 90 µA per channel quiescent current, and features rail-to-rail input common-mode range including ground - enabling use in low-side current sensing and environmental sensor interfaces.
For engineers reviewing the LM324LVIDYYR datasheet, LM324LVIDYYR pinout, LM324LVIDYYR application, or LM324LVIDYYR equivalent, this page provides verified specifications, SOT-23-14 package details, real-world implementation context for low-voltage analog front-ends, and validated alternative options for design continuity and sourcing flexibility.
Technical Context
The LM324LVIDYYR implements a P-channel input stage with parallel N-channel pair to eliminate phase reversal during overdrive, supporting robust operation in single-supply configurations where input signals reach ground. Its unity-gain stable architecture enables direct use in buffers, active filters, and transimpedance amplifiers without external compensation.
Designed for extended temperature operation (–40°C to 125°C) and low-power embedded systems, it achieves 40 nV/√Hz input voltage noise density and 80 dB PSRR at DC while maintaining 75° phase margin at 5.5 V supply - critical for precision measurement and motor control feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, and 5 V rails without regulation. |
| Input Offset Voltage | ±1 mV (typ) - enables accurate DC-coupled amplification of mV-level sensor outputs without trimming. |
| Unity-Gain Bandwidth | 1 MHz - sufficient for anti-aliasing filtering, audio preamps, and closed-loop motor control up to ~10 kHz. |
| Quiescent Current / Ch | 90 µA (typ) - allows 4-channel operation under 360 µA total, ideal for always-on battery monitoring. |
| Common-Mode Input Range | Includes V– (ground) and extends to within 1 V of V+ - simplifies single-supply design with no level-shifting needed. |
| Output Swing (V–) | 40–75 mV above ground (RL ≤ 10 kΩ) - ensures reliable logic-level interfacing with ADCs and comparators. |
| ESD Rating (HBM) | ±2 kV - meets IEC 61000-4-2 Level 2 for board-level handling and end-equipment robustness. |
Pinout & Package
SOT-23-14 (DYY) package: 4.20 mm × 2.00 mm body, 0.65 mm pitch, surface-mount, thermally enhanced layout compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads ≥2 kΩ; swing limited to 40–75 mV above V–. |
| 2 | IN1– | Inverting input, channel 1 - accepts signals down to V–; high CMRR (84 dB min) rejects supply noise. |
| 3 | IN1+ | Noninverting input, channel 1 - rail-to-rail input stage enables ground-referenced sensor biasing. |
| 4 | V+ | Positive supply - connects to main system rail (2.7–5.5 V); decoupling capacitor required at pin. |
| 5 | IN2+ | Noninverting input, channel 2 - electrically isolated from other channels; supports independent gain settings. |
| 6 | IN2– | Inverting input, channel 2 - matched offset and bias current to IN1± for dual-sensor differential pairs. |
| 7 | OUT2 | Amplifier 2 output - identical performance to OUT1; usable for cascaded gain stages or dual-path processing. |
| 8 | OUT3 | Amplifier 3 output - enables three independent analog functions (e.g., sensor + reference + comparator buffer). |
| 9 | IN3– | Inverting input, channel 3 - supports multi-channel signal conditioning on single footprint. |
| 10 | IN3+ | Noninverting input, channel 3 - same input structure as IN1+/IN2+, ensuring consistent DC accuracy across all four amps. |
| 11 | V– | Negative supply / ground - referenced for all inputs and outputs; must be low-impedance return path. |
| 12 | IN4+ | Noninverting input, channel 4 - completes quad functionality; suitable for fault-detection or redundancy circuits. |
| 13 | IN4– | Inverting input, channel 4 - matched to other inputs; enables fourth differential pair without added IC area. |
| 14 | OUT4 | Amplifier 4 output - full rail-to-rail output capability; usable for driving LED indicators or reference buffers. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input including ground | Enables direct interface with 0 V-referenced sensors (e.g., thermistors, RTDs, current shunts) without level shifters. |
| No phase reversal under overdrive | Eliminates output latch-up during transient overload - critical for motor control feedback and protection circuits. |
| 1 µs overload recovery time | Ensures fast return to linear operation after saturation, preserving timing integrity in pulse-width modulated systems. |
| 40 nV/√Hz input voltage noise | Supports high-resolution signal acquisition from low-output sensors (e.g., piezoelectric, MEMS accelerometers). |
| Extended –40°C to 125°C operation | Validated for automotive cabin modules, industrial PLC I/O, and outdoor environmental monitoring hardware. |
| 2-kV HBM ESD rating | Reduces need for external protection components in consumer and portable equipment designs. |
Applications
| Low-Side Current Sensing | Environmental Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Monitoring battery pack discharge current in cordless power tools using a 100 mΩ shunt resistor. IC Role / Device Role / Timing Role: Quad amplifier configured as four independent current-to-voltage converters, each feeding separate ADC channels for cell balancing. Use Value: ±1 mV offset enables <1% error at 1 A load; 90 µA/channel quiescent current extends runtime in sleep mode. |
Use Scenario: Amplifying mV-level outputs from temperature, humidity, and CO₂ sensors in HVAC control units. IC Role / Device Role / Timing Role: Single-supply instrumentation amplifier front-end with programmable gain and offset correction per sensor type. Use Value: Rail-to-rail input accommodates 0–100 mV sensor spans; 125°C rating ensures reliability inside heated enclosures. |
| Uninterruptible Power Supply (UPS) Monitoring | DC Motor Control Feedback |
|
Use Scenario: Real-time voltage and current monitoring across battery banks and AC/DC conversion stages in rack-mount UPS systems. IC Role / Device Role / Timing Role: Four-channel signal conditioner acquiring bus voltage, battery voltage, charge current, and temperature simultaneously. Use Value: 1 MHz bandwidth captures ripple harmonics up to 100 kHz; 80 dB PSRR rejects switching noise from SMPS stages. |
Use Scenario: Closed-loop speed and torque control in 24 V brushed DC motors used in automated gate operators. IC Role / Device Role / Timing Role: Quad op amp implementing PID controller (3 amps), current sense amplifier (1 amp), and fault comparator. Use Value: No phase reversal prevents runaway during stall conditions; 75° phase margin ensures stable loop response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324LVDR | SOIC-14 package (8.65 mm × 3.91 mm); higher RθJA (102.1°C/W vs 154.6°C/W); identical electrical specs. | Better thermal dissipation in forced-air environments; unsuitable for ultra-compact PCB layouts. | Select when board space permits larger footprint and higher power dissipation is expected. |
| TLV9004IDR | Lower input offset (±0.3 mV), higher GBW (1 MHz vs 1 MHz same), but higher IQ (130 µA/ch vs 90 µA/ch); rail-to-rail output. | Superior DC accuracy for precision measurement; less optimal for battery life-critical applications. | Select when offset drift and output swing near V+ are more critical than quiescent power. |
Compared with LM324LVIDYYR, LM324LVDR offers better thermal performance in SOIC packaging but occupies 3× more board area, while TLV9004IDR improves DC precision at the cost of 44% higher supply current - making LM324LVIDYYR the optimal balance of size, power, and cost for high-volume industrial sensing.
Availability
LM324LVIDYYR is available at Aetrix Electronics and suitable for low-voltage sensor interfaces, battery management systems, and industrial control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM324LVIDYYR 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 amplifiers and power management ICs.
The LM3xxLV family was engineered to replace legacy LM324 variants in cost-sensitive, low-voltage applications - delivering improved performance at 2.7–5.5 V while maintaining pin compatibility and ease of adoption in existing designs.
FAQ
What is the maximum operating temperature for LM324LVIDYYR?
The LM324LVIDYYR is specified for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated per TI's thermal characterization data (RθJA = 154.6°C/W for DYY package) and supports deployment in automotive under-hood modules, industrial motor drives, and outdoor environmental sensors without derating.
Does LM324LVIDYYR support true rail-to-rail output?
No - LM324LVIDYYR features rail-to-rail *input* (including ground), but its output swings to within 40–75 mV of V– and typically 1 V below V+. For example, with V+ = 5 V and V– = 0 V, the output can reach ~0.04–0.075 V minimum and ~4 V maximum. This is sufficient for driving most 10-bit+ ADCs and comparator inputs directly.
Can LM324LVIDYYR be used in single-supply configurations?
Yes - LM324LVIDYYR is explicitly designed for single-supply operation. Its input common-mode range includes the negative rail (V–, typically ground), and its internal architecture eliminates phase reversal when inputs approach or exceed supply rails - making it ideal for 3.3 V or 5 V-only systems like portable medical devices and smart home sensors.
What is the typical slew rate of LM324LVIDYYR?
The typical slew rate of LM324LVIDYYR is 1.5 V/µs at VS = 5 V, as confirmed in Section 6.7 of the SBOS944E datasheet. This enables clean amplification of signals up to ~100 kHz with minimal distortion and supports fast settling in closed-loop control applications such as PWM-based motor drivers and active filter stages.
Is LM324LVIDYYR pin-compatible with legacy LM324 variants?
No - LM324LVIDYYR uses the SOT-23-14 (DYY) package, which has a different pinout and footprint than the traditional PDIP-14 or SOIC-14 packages used by standard LM324. While functional behavior is aligned with the LM324LV family, mechanical replacement requires PCB redesign. Always verify pin mapping against Figure 5-3 and Table 5-3 in the official datasheet.
LM324LVIDYYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- -
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 90µA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.7 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
LM324LVIDYYR FAQ
1.How can I place an order for LM324LVIDYYR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM324LVIDYYR 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 LM324LVIDYYR reliable?
The price and inventory of LM324LVIDYYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM324LVIDYYR is usually 5 days.
3.What payment methods are accepted for LM324LVIDYYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM324LVIDYYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM324LVIDYYR?
LM324LVIDYYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM324LVIDYYR 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 LM324LVIDYYR?
For technical support, including LM324LVIDYYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM324LVIDYYR requirements.
6.How does Aetrix verify that LM324LVIDYYR is sourced from the original manufacturer or authorized distributors?
All LM324LVIDYYR 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 LM324LVIDYYR meets industry standards.
7.What is the process for return or replacement of LM324LVIDYYR?
All LM324LVIDYYR units undergo pre-shipment inspection (PSI). If there is an issue with LM324LVIDYYR, 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 LM324LVIDYYR part is unused and in its original packaging.
Return procedure for LM324LVIDYYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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