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STMicroelectronics LMV324IPT
- Part No.:
- LMV324IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV324IPT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:11,297
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Product details
Overview
LMV324IPT from STMicroelectronics is a quad rail-to-rail input/output operational amplifier in TSSOP-14 package, designed for low-voltage portable systems. It operates from 2.7 V to 6 V, draws only 145 µA per amplifier, delivers 1 MHz gain bandwidth, and supports extended common-mode input range (VDD − 0.2 V to VCC + 0.2 V) at 25 °C.
For engineers reviewing the LMV324IPT datasheet, LMV324IPT pinout, LMV324IPT application, or LMV324IPT equivalent, key selection criteria include supply current budgeting in battery-powered medical devices, rail-to-rail output swing for single-supply signal conditioning, input offset voltage stability across temperature, and TSSOP-14 thermal performance in space-constrained PCB layouts.
Technical Context
The LMV324IPT integrates four independent amplifiers sharing a common supply, each featuring complementary input stage architecture enabling rail-to-rail input common-mode range beyond supply rails. Its unity-gain stable design uses internal compensation to achieve 1 MHz GBP with 0.45 V/µs slew rate at 5 V supply.
It employs ESD-protected CMOS input transistors delivering 1–9 nA input offset current and 16–63 nA input bias current (typ. 50 nA at 5 V), while maintaining 65–95 dB CMRR and 70–90 dB SVRR over full operating temperature (−40 °C to +125 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 6 V - enables direct use with single-cell Li-ion (3.0–3.7 V) or two-cell alkaline (3.0–3.2 V) batteries |
| Supply Current per Amp | 145 µA typ. at 2.7 V - allows four-channel operation under 600 µA total, critical for multi-sensor battery life extension |
| Gain Bandwidth Product | 1.3 MHz at 5 V - supports anti-aliasing filtering up to ~100 kHz and sensor signal amplification without phase loss |
| Input Offset Voltage | 0.1–3 mV at 25 °C - ensures ≤10 mV error in 3.3 V full-scale glucose meter analog front-end |
| Output Drive | ±48 mA short-circuit current - drives 10 kΩ loads to rail with <100 mV dropout, sufficient for driving ADC reference buffers |
| Common-Mode Range | VDD − 0.2 V to VCC + 0.2 V at 25 °C - accepts inputs down to ground and up to VCC+200 mV for level-shifting flexibility |
| ESD Rating | 2 kV HBM - meets IEC 61000-4-2 Level 2 for handheld medical device handling robustness |
Pinout & Package
TSSOP-14 (Thin Shrink Small Outline Package, 4.9 mm × 6.4 mm × 1.05 mm height) with 0.65 mm lead pitch, ECOPACK® compliant, thermal resistance RthJA = 100 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp A) | Accepts differential signal input referenced to non-inverting input; supports rail-to-rail common-mode range |
| 2 | Non-inverting Input (Amp A) | Reference node for Amp A; high-impedance CMOS input draws ≤63 nA bias current |
| 3 | Output (Amp A) | Rail-to-rail output capable of sourcing/sinking ±48 mA into 2 kΩ load |
| 4 | VDD (Ground) | Power return path; must be low-impedance with local 100 nF decoupling near pin |
| 5 | Non-inverting Input (Amp B) | Independent input for second amplifier; electrically isolated from Amp A |
| 6 | Inverting Input (Amp B) | Differential pair input for Amp B; matched to Pin 5 for common-mode rejection |
| 7 | Output (Amp B) | Second independent output; shares VDD/VCC rails but no internal crosstalk |
| 8 | VCC (Supply) | Positive supply rail; accepts 2.7–6 V; internal regulation not required |
| 9 | Output (Amp C) | Third output channel; identical electrical specs to Pins 3 and 7 |
| 10 | Inverting Input (Amp C) | Input for third amplifier; pinout symmetry enables consistent layout routing |
| 11 | Non-inverting Input (Amp C) | Reference input for Amp C; matches Pin 5/6 electrical behavior |
| 12 | Non-inverting Input (Amp D) | Fourth amplifier input; supports independent sensor channel interfacing |
| 13 | Inverting Input (Amp D) | Differential input for Amp D; fully isolated from other channels |
| 14 | Output (Amp D) | Final output; completes quad configuration; all outputs drive same load specs |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full 0–VCC dynamic range signal amplification on single supply, eliminating level-shifter ICs in portable designs |
| 145 µA per amplifier | Reduces total quiescent current to <600 µA for four-channel sensing, extending CR2032 battery life to >1 year in intermittent-use glucose meters |
| Extended Vicm (VDD − 0.2 V) | Allows direct connection of grounded sensors (e.g., thermistor bridges) without external bias resistors or charge pumps |
| 1.3 MHz GBP at 5 V | Supports closed-loop bandwidth up to 100 kHz for active filters in ECG front-ends while maintaining phase margin >48° |
| −40 °C to +125 °C operation | Validated for automotive cabin ambient monitoring and industrial handheld test equipment without derating |
Applications
| Glucose Meter Signal Conditioning | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying low-level amperometric current from glucose oxidase enzyme reaction (1–100 nA) into measurable voltage for 12-bit ADC. IC Role / Device Role / Timing Role: Quad op-amp used as transimpedance amplifier (Ch1), reference buffer (Ch2), filter stage (Ch3), and level shifter (Ch4) in single-chip analog subsystem. Use Value: Rail-to-rail output swing ensures full ADC utilization; 145 µA per amp minimizes battery drain during 5-second measurement cycles. | Use Scenario: Conditioning biopotential signals from dry electrodes in handheld 3-lead ECG, rejecting motion artifact and 50/60 Hz interference. IC Role / Device Role / Timing Role: First-stage instrumentation-grade amplifier (Ch1–Ch2), high-pass filter (Ch3), and ADC driver (Ch4) with DC coupling. Use Value: 95 dB CMRR suppresses common-mode noise; 1.3 MHz GBP enables 150 Hz cutoff for AC-coupled high-pass without gain peaking. |
| Laptop Battery Fuel Gauge | Industrial Temperature Sensor Interface |
Use Scenario: Measuring cell voltage and sense resistor voltage drop in smart battery packs to compute state-of-charge via coulomb counting. IC Role / Device Role / Timing Role: Precision difference amplifier (Ch1), reference voltage buffer (Ch2), temperature-compensated offset correction (Ch3), and alert comparator driver (Ch4). Use Value: 3 mV max input offset ensures <0.5% voltage measurement error across 0–4.2 V Li-ion range; 2 µV/°C drift limits thermal drift to <0.15 mV over 0–60 °C. | Use Scenario: Linearizing and amplifying output from PT100 RTD bridge in handheld thermal calibrators requiring ±0.1 °C accuracy. IC Role / Device Role / Timing Role: Bridge excitation buffer (Ch1), differential instrumentation amplifier (Ch2), cold-junction compensation (Ch3), and DAC output buffer (Ch4). Use Value: Extended Vicm allows direct RTD bridge connection to ground-referenced supply; 40 nV/√Hz input noise contributes <0.5 µV RMS noise in 10 Hz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324IDT | SO-14 package (RthJA = 103 °C/W vs. 100 °C/W); identical electrical specs; same marking "LMV324" | Preferred for through-hole prototyping or higher-power dissipation scenarios where TSSOP thermal limits are approached | Select when board assembly uses SO-14 footprint or requires slightly better thermal margin at cost of larger PCB area |
| TSV854IDT | Higher GBP (1.8 MHz), lower input offset (1.5 mV max), higher supply current (220 µA/amp), same rail-to-rail I/O | Better suited for higher-bandwidth sensor interfaces (e.g., ultrasonic time-of-flight) where speed outweighs battery life | Choose when system requires >100 kHz closed-loop bandwidth and can tolerate +50% supply current increase |
Compared with LMV324IDT, LMV324IPT offers identical analog performance in a 30% smaller footprint and 3% lower thermal resistance; versus TSV854IDT, it trades 0.5 MHz bandwidth and 1.2 mV offset reduction for 53% lower quiescent power-critical for coin-cell-powered diagnostics.
Availability
LMV324IPT is available at Aetrix Electronics and suitable for battery-powered medical devices, portable ECG monitors, laptop fuel gauges, and industrial temperature sensor interfaces requiring stable component supply across long production lifecycles.
Supply support for LMV324IPT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, analog ICs, power management, and MEMS sensors for industrial, automotive, and consumer markets.
The LMV324 series belongs to ST's general-purpose low-voltage op-amp product line, engineered specifically for cost-sensitive, battery-operated applications demanding rail-to-rail performance, ultra-low quiescent current, and extended temperature reliability.
FAQ
What is the maximum output current capability of LMV324IPT per channel?
Each amplifier in the LMV324IPT can source or sink up to 48 mA continuously (measured at VCC = 5 V, Vid = ±100 mV). This is sufficient to drive 10 kΩ loads to within 100 mV of either rail and supports direct interface with SAR ADC reference buffers or LED indicators without external transistors.
Does LMV324IPT support true rail-to-rail input when powered from 3.3 V?
Yes - at 25 °C and VCC = 3.3 V, the common-mode input range extends from VDD − 0.2 V (−0.2 V) to VCC + 0.2 V (3.5 V), allowing inputs below ground and above supply. Over full temperature (−40 °C to +125 °C), the guaranteed rail-to-rail input range holds for VCC ≤ 5.5 V, confirmed in Table 2 of DS4539 Rev 10.
Can LMV324IPT operate stably with capacitive loads?
LMV324IPT is unity-gain stable but exhibits reduced phase margin with capacitive loads >100 pF. For 1 nF loads, external series resistance (≥100 Ω) at the output is recommended to maintain >45° phase margin. The datasheet specifies stability testing with CL = 100 pF and RL = 600 Ω, yielding 48° phase margin at 5 V.
Is LMV324IPT qualified for automotive applications?
No - LMV324IPT is an industrial-grade part rated for −40 °C to +125 °C operation but lacks AEC-Q100 qualification. For automotive use, ST offers the pin-compatible LMV324IYPT (TSSOP-14, AEC-Q100 Grade 2), marked "V324IY" and specified with enhanced screening per AEC-Q001/Q002.
LMV324IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.45V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 16 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 162µA
- Current - Output / Channel:
- 160 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV324IPT FAQ
1.How can I place an order for LMV324IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324IPT 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 LMV324IPT reliable?
The price and inventory of LMV324IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324IPT is usually 5 days.
3.What payment methods are accepted for LMV324IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324IPT?
LMV324IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324IPT 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 LMV324IPT?
For technical support, including LMV324IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324IPT requirements.
6.How does Aetrix verify that LMV324IPT is sourced from the original manufacturer or authorized distributors?
All LMV324IPT 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 LMV324IPT meets industry standards.
7.What is the process for return or replacement of LMV324IPT?
All LMV324IPT units undergo pre-shipment inspection (PSI). If there is an issue with LMV324IPT, 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 LMV324IPT part is unused and in its original packaging.
Return procedure for LMV324IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324IPT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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