My Inquiry
My Account
Texas Instruments LPV324M
- Part No.:
- LPV324M
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV324M.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,995
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LPV324M from Texas Instruments is a quad general-purpose operational amplifier optimized for low-voltage (2.7 V to 5 V), low-power (28 µA typical supply current per amplifier) rail-to-rail output operation in industrial temperature range (−40°C to +85°C). It delivers 152 kHz gain-bandwidth product and ±90 mV / −3.5 mV output swing relative to rails at 100 kΩ load, enabling precision signal conditioning in battery-powered portable instrumentation.
For engineers reviewing the LPV324M datasheet, LPV324M pinout, LPV324M application, or LPV324M equivalent, this page provides verified package mapping (14-pin SOIC), confirmed rail-to-rail output behavior, validated input common-mode range (−0.2 V to V+−0.8 V), and real-world design guidance for single-supply active filters and instrumentation amplifiers.
Technical Context
The LPV324M integrates four independent BiCMOS op-amps on a single die, featuring bipolar input stages for low noise and higher output drive, and rail-to-rail output stages using complementary push-pull architecture. Its input common-mode voltage includes ground, supporting direct sensing near 0 V in single-supply systems.
Designed for cost-sensitive, space-constrained applications, it achieves a speed-power ratio of 5 kHz bandwidth at just 9 µA per channel (LPV321-N reference), with guaranteed performance at both 2.7 V and 5 V supply levels. The device exhibits no crossover distortion and supports stable unity-gain operation with up to 200 pF capacitive load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - Ensures full functionality across depleted alkaline or Li-ion battery discharge profiles. |
| Supply Current (per amp) | 28 µA typical at 5 V - Enables four-channel analog front-end operation within <112 µA total quiescent budget. |
| Gain-Bandwidth Product | 152 kHz - Supports DC-coupled sensor amplification and low-frequency active filtering up to ~10 kHz. |
| Rail-to-Rail Output Swing | V− +90 mV / V+ −3.5 mV at 100 kΩ - Delivers >98% of full-scale dynamic range in 3.3 V or 5 V systems. |
| Input Common-Mode Range | −0.2 V to V+ −0.8 V - Allows direct interface with ground-referenced sensors and resistive dividers. |
| Input Offset Voltage | 1.5 mV max at 5 V - Limits DC error in precision gain stages without requiring external trimming. |
| ESD Rating (HBM) | 2000 V - Meets basic handling robustness requirements for industrial assembly environments. |
Pinout & Package
LPV324M is housed in a 14-pin SOIC package (Package Drawing D, 8.65 mm × 3.91 mm × 1.75 mm body height), RoHS-compliant with green (Pb-free, Sb/Br-free) CU SN finish and MSL Level-1 rating.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output - Rail-to-rail capable; drives loads ≥100 kΩ with <3.5 mV headroom to V+. |
| 2 | Inverting Input A | High-impedance node (IB = 2 nA typ); requires matched biasing for offset minimization. |
| 3 | Non-Inverting Input A | Accepts signals down to −0.2 V; enables true single-supply operation with ground-referenced inputs. |
| 4 | V− (GND) | Ground reference for all four amplifiers; must be low-impedance for noise immunity. |
| 5 | Non-Inverting Input B | Independent input for second amplifier; shares same V− and V+ rails as other channels. |
| 6 | Inverting Input B | Configurable for inverting gain stage or differential pair; matches A-channel electrical specs. |
| 7 | Output B | Second rail-to-rail output; electrically isolated but thermally coupled to other outputs. |
| 8 | V+ | Positive supply rail (2.7–5 V); decoupling capacitor required within 1 cm for stability. |
| 9 | Output C | Third amplifier output; identical AC/DC specs to Outputs A and B. |
| 10 | Inverting Input C | Matches Input A/B characteristics; supports multi-stage filter or signal routing topologies. |
| 11 | Non-Inverting Input C | Enables three-channel parallel processing or cascaded gain configurations. |
| 12 | Non-Inverting Input D | Fourth amplifier input; allows full quad utilization in instrumentation or sensor fusion designs. |
| 13 | Inverting Input D | Supports independent feedback networks per channel; no crosstalk specified between amplifiers. |
| 14 | Output D | Final rail-to-rail output; usable for reference buffering, level-shifting, or auxiliary signal generation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >98% supply rail utilization at 100 kΩ load, maximizing SNR in low-voltage data acquisition. |
| Bipolar input stage | Provides 1.7 nA typical input bias current and 178 nV/√Hz input voltage noise at 1 kHz for sensor interfacing. |
| No crossover distortion | Ensures clean small-signal linearity in audio and precision analog paths without notch distortion artifacts. |
| Guaranteed 2.7 V and 5 V operation | Validated performance across full battery discharge curve - eliminates need for voltage regulation in portable devices. |
| Capacitive load tolerance | Stable with up to 200 pF directly on output; avoids external isolation resistors in most sensor driver applications. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level signals from ECG electrodes or thermistor bridges in handheld diagnostic tools. IC Role / Device Role / Timing Role: Quad LPV324M configures as instrumentation amplifier front-end (3-op-amp topology) and reference buffer. Use Value: 28 µA per amplifier enables >100-hour battery life in AA-powered devices while maintaining rail-to-rail output swing for full ADC utilization. |
Use Scenario: Signal conditioning for 4–20 mA loop receivers and RTD interfaces in factory-floor transmitters. IC Role / Device Role / Timing Role: Dual amplifiers implement precision difference amplifier; remaining two channels buffer reference and drive DAC outputs. Use Value: −0.2 V to V+−0.8 V input common-mode range accepts grounded sensor inputs without level-shifting circuitry. |
| Smart Home Environmental Sensing | Low-Power Active Filters |
|
Use Scenario: Multi-sensor hub aggregating humidity, CO₂, and VOC readings in battery-operated smart thermostats. IC Role / Device Role / Timing Role: Each amplifier conditions one sensor output; rail-to-rail swing maximizes dynamic range into 12-bit SAR ADC. Use Value: 152 kHz GBWP supports anti-aliasing filtering up to 10 kHz while consuming only 112 µA total quiescent current. |
Use Scenario: 2nd-order low-pass filtering of microphone or vibration sensor outputs in predictive maintenance nodes. IC Role / Device Role / Timing Role: Configured as unity-gain Sallen-Key topology; uses internal rail-to-rail output to preserve signal amplitude. Use Value: No crossover distortion ensures linear phase response below cutoff frequency; 200 pF capacitive load tolerance simplifies PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324DT | Higher supply current (220 µA per amp), wider input common-mode range (to V+), but no guaranteed 2.7 V operation. | Better for 5 V-only systems requiring higher drive strength; unsuitable for sub-3 V battery operation. | Select LMV324DT only when >100 kHz GBWP and higher output current (40 mA) are required - not for ultra-low-power designs. |
| TSV914IDT | Lower input offset (1.5 mV typ vs. 7 mV typ), higher GBWP (8 MHz), but 130 µA per amp supply current and narrower VCM (to V+−1.2 V). | Preferred for precision DC-coupled gain stages where offset drift matters more than quiescent power. | Choose TSV914IDT when accuracy outweighs battery life; LPV324M remains optimal for cost-sensitive, long-life portable systems. |
Compared with LMV324DT and TSV914IDT, LPV324M uniquely balances ultra-low quiescent current (28 µA), guaranteed 2.7 V operation, rail-to-rail output, and industrial temperature range - making it the only option qualified for extended-life battery-powered instrumentation below 3.3 V.
Availability
LPV324M is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, smart home environmental sensing, and low-power active filters requiring stable component supply across automotive, industrial, and consumer OEM programs.
Supply support for LPV324M 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog ICs and broad portfolio support for industrial, automotive, and personal electronics.
The LPV324M belongs to TI's LPV3xx-N family of low-voltage, low-power op-amps designed specifically for cost-sensitive, battery-operated portable instrumentation where rail-to-rail output, ground-sensing capability, and sub-100 µA quiescent current are critical.
FAQ
What is the maximum capacitive load the LPV324M can drive without external compensation?
The LPV324M is stable driving up to 200 pF directly on its output in unity-gain configuration, as verified in the datasheet's Typical Performance Characteristics. This eliminates the need for isolation resistors in most sensor driver and filter applications. For loads exceeding 200 pF, the recommended solution is the resistive-isolation circuit shown in Figure 40 of the LPV324M datasheet, which preserves DC accuracy and phase margin. LPV324M's internal compensation ensures this stability without requiring external components under standard operating conditions.
Does the LPV324M support true single-supply operation with input signals referenced to ground?
Yes, the LPV324M supports true single-supply operation with input signals down to −0.2 V relative to V− (GND), and its input common-mode voltage range extends to V+ − 0.8 V. This allows direct connection of ground-referenced sensors such as thermistors, bridge transducers, or photodiode amplifiers without level-shifting circuitry. The LPV324M's bipolar input stage ensures low input bias current (2 nA typical) and minimal offset drift across the full input range, making it suitable for precision DC-coupled applications powered from a single 3.3 V or 5 V rail.
How does the LPV324M's rail-to-rail output improve system-level dynamic range?
The LPV324M's rail-to-rail output delivers V− + 90 mV to V+ − 3.5 mV swing at 100 kΩ load, preserving >98% of the available supply voltage range. In a 3.3 V system, this yields 3.21 V of usable output swing versus only ~2.5 V for conventional op-amps - directly increasing ADC effective resolution by up to 0.8 bits in 12-bit systems. This extended range reduces quantization error and improves signal-to-noise ratio in battery-powered data loggers and portable test equipment where LPV324M is commonly deployed.
Is the LPV324M pin-compatible with other quad op-amps in SOIC-14 packages?
No, the LPV324M is not pin-compatible with industry-standard quad op-amps such as the LM324 or TL074. Its pinout follows TI's standardized LPV3xx-N family layout (Outputs A–D on pins 1, 7, 9, 14; shared V+ on pin 8 and V− on pin 4), differing from legacy parts that place power pins at corners. Engineers must verify PCB footprint alignment and signal routing when substituting LPV324M. The LPV324M datasheet's Figure 2 explicitly confirms this 14-pin SOIC pin assignment, and no drop-in replacement is documented by Texas Instruments.
What thermal considerations apply to the LPV324M in continuous operation?
The LPV324M has a junction-to-ambient thermal resistance (θJA) of 145°C/W in the 14-pin SOIC package. At maximum rated ambient temperature (+85°C) and full 5 V supply, total power dissipation must remain below 452 mW to keep junction temperature ≤150°C. With 28 µA per amplifier (112 µA total), static power is only 560 µW - well within safe limits. However, output loading above 100 kΩ or sustained sourcing/sinking currents >10 mA require thermal derating per the Absolute Maximum Ratings table, and board-level copper area should exceed 1 in² for high-reliability industrial deployments.
LPV324M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.1V/µs
- Gain Bandwidth Product:
- 152 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 28µA (x4 Channels)
- Current - Output / Channel:
- 16 mA
- 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:
- 14-SOIC
LPV324M FAQ
1.How can I place an order for LPV324M through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324M 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 LPV324M reliable?
The price and inventory of LPV324M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324M is usually 5 days.
3.What payment methods are accepted for LPV324M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324M?
LPV324M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324M 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 LPV324M?
For technical support, including LPV324M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324M requirements.
6.How does Aetrix verify that LPV324M is sourced from the original manufacturer or authorized distributors?
All LPV324M 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 LPV324M meets industry standards.
7.What is the process for return or replacement of LPV324M?
All LPV324M units undergo pre-shipment inspection (PSI). If there is an issue with LPV324M, 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 LPV324M part is unused and in its original packaging.
Return procedure for LPV324M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV324M 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…
