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Texas Instruments LPV324MX/NOPB
- Part No.:
- LPV324MX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV324MX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,674
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Product details
Overview
LPV324MX/NOPB from Texas Instruments is a quad-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5 V), micropower (28 µA total supply current at 5 V) applications requiring high input common-mode range (−0.2 V to V+ − 0.8 V), 152 kHz gain-bandwidth product, and industrial temperature operation (−40°C to +85°C). It serves as a signal-conditioning front-end in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the LPV324MX/NOPB datasheet, LPV324MX/NOPB pinout, LPV324MX/NOPB application, or LPV324MX/NOPB equivalent, key selection considerations include its quad-channel integration in TSSOP-14 or SOIC-14 packages, rail-to-rail output swing (V+ − 3.5 mV / V− + 90 mV at 100 kΩ), 7 mV max input offset voltage, and bipolar input stage enabling improved noise performance and 16 mA output sink capability.
Technical Context
The LPV324MX/NOPB implements a bipolar-input, rail-to-rail output architecture with no crossover distortion, enabling clean signal amplification near supply rails. Its input common-mode range extends to ground (−0.2 V), supporting single-supply sensing of near-zero-voltage signals without level-shifting circuitry.
It achieves a 152 kHz gain-bandwidth product and 0.1 V/µs slew rate while drawing only 28 µA total supply current at 5 V - delivering an industry-leading speed-power ratio for micropower op amps. The device is stable driving up to 200 pF capacitive loads in unity-gain configuration without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - enables compact multi-signal conditioning on a single die, reducing board area vs discrete single/dual op amps. |
| Supply Voltage Range | 2.7 V to 5 V - supports direct operation from Li-ion, alkaline, or regulated 3.3 V rails across full battery discharge cycle. |
| Supply Current (Total) | 28 µA typical at 5 V - extends battery life in always-on sensor nodes and portable medical devices. |
| Gain-Bandwidth Product | 152 kHz - sufficient for DC-coupled sensor amplification, active filtering below 10 kHz, and low-frequency instrumentation. |
| Rail-to-Rail Output Swing | V+ − 3.5 mV / V− + 90 mV at 100 kΩ - maximizes dynamic range in low-voltage systems, preserving >99% of available output headroom. |
| Input Offset Voltage | 7 mV max at 25°C - enables accurate DC-coupled amplification of mV-level transducer outputs without trimming. |
| Input Common-Mode Range | −0.2 V to V+ − 0.8 V - allows direct interface to ground-referenced sensors (e.g., thermistors, bridge elements) in single-supply designs. |
| ESD Rating (HBM) | ±2000 V - meets industrial handling requirements and improves robustness in production and field environments. |
Pinout & Package
LPV324MX/NOPB is available in 14-pin TSSOP (PW) and SOIC (D) packages. Both share identical pinout and electrical characteristics; TSSOP offers 5.00 mm × 4.40 mm footprint, SOIC measures 8.65 mm × 3.91 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Output of channel A - drives downstream ADC input or analog filter stage with rail-to-rail swing. |
| 2 | IN− A | Inverting input of channel A - connects to feedback network in inverting amplifier or summing junction. |
| 3 | IN+ A | Noninverting input of channel A - accepts sensor signal or reference voltage with ground-inclusive common-mode range. |
| 4 | V− | Negative supply rail - tied to system ground in single-supply configurations; enables true ground-sensing operation. |
| 5 | IN+ B | Noninverting input of channel B - used for differential pair input or independent signal path in multi-channel systems. |
| 6 | IN− B | Inverting input of channel B - matches channel A for balanced layout and matched thermal drift in dual-path designs. |
| 7 | OUT B | Output of channel B - provides second independent amplified output without additional IC footprint. |
| 8 | OUT C | Output of channel C - supports three-signal processing (e.g., XYZ-axis sensor conditioning) within one package. |
| 9 | IN− C | Inverting input of channel C - maintains consistent routing symmetry across all four channels for EMI resilience. |
| 10 | IN+ C | Noninverting input of channel C - enables simultaneous acquisition of multiple analog inputs with shared supply and reference. |
| 11 | V+ | Positive supply rail - accepts 2.7–5 V input; internal regulation ensures stable biasing across voltage range. |
| 12 | IN+ D | Noninverting input of channel D - completes quad-channel set for full analog front-end integration (e.g., 4-channel data acquisition). |
| 13 | IN− D | Inverting input of channel D - supports fourth independent gain stage or precision reference buffer function. |
| 14 | OUT D | Output of channel D - delivers final conditioned signal with same rail-to-rail performance and 16 mA sink capability as other channels. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower consumption | 28 µA total supply current at 5 V - enables multi-year battery life in wireless sensor nodes and wearable health monitors. |
| Rail-to-rail output stage | V+ − 3.5 mV / V− + 90 mV swing at 100 kΩ - preserves full ADC input range when interfacing to 12-bit+ converters powered from same low-voltage rail. |
| Bipolar input architecture | 1.7 nA typical input bias current - reduces voltage error in high-impedance sensor interfaces (e.g., pH electrodes, photodiode transimpedance stages). |
| Ground-sensing input range | −0.2 V to V+ − 0.8 V common-mode - eliminates need for negative supply or level-shifting circuits when measuring signals referenced to system ground. |
| Capacitive load tolerance | Stable with ≤200 pF in unity-gain - simplifies PCB layout by allowing direct connection to ADC input capacitors or long traces without isolation resistors. |
| Industrial temperature range | −40°C to +85°C operation - ensures reliable performance in automotive cabin modules, industrial controllers, and outdoor IoT gateways. |
Applications
| Portable Medical Sensors | Low-Power Active Filters |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG or EEG signals from dry electrodes in battery-powered wearables. IC Role / Device Role / Timing Role: Quad-channel LPV324MX/NOPB provides simultaneous instrumentation-grade amplification, baseline correction, and anti-alias filtering for multi-lead biosignal acquisition. Use Value: Micropower operation extends battery life beyond 7 days; rail-to-rail output ensures full utilization of 3.3 V ADC reference; ground-sensing input enables direct electrode connection without bias circuitry. |
Use Scenario: Implementing 2nd-order low-pass filters for noise suppression in environmental sensor outputs (e.g., temperature, humidity, gas). IC Role / Device Role / Timing Role: Each channel configures as Sallen-Key or multiple-feedback stage, leveraging LPV324MX/NOPB's 152 kHz GBW and low distortion for precise cutoff control below 5 kHz. Use Value: Single-package quad integration reduces component count by 75% vs discrete op amp solutions; low supply current minimizes thermal drift in sealed sensor enclosures. |
| Multi-Channel Data Acquisition | Industrial Process Monitoring |
|
Use Scenario: Conditioning analog outputs from four independent pressure or flow transducers in compact PLC I/O modules. IC Role / Device Role / Timing Role: LPV324MX/NOPB acts as programmable-gain amplifier (PGA) front-end, with each channel scaled via external resistor networks for matched gain accuracy. Use Value: Matched channel parameters (offset, drift, bandwidth) ensure <±0.1% inter-channel gain error; SOIC/TSSOP packages support automated assembly and thermal management in dense layouts. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in factory automation, where space and power are constrained. IC Role / Device Role / Timing Role: LPV324MX/NOPB buffers and level-shifts sensor outputs to drive current-loop DACs or microcontroller ADCs operating from isolated 3.3 V supplies. Use Value: ±2000 V HBM ESD rating withstands industrial ESD events; −40°C to +85°C operation ensures reliability in uncontrolled cabinet environments; low quiescent current reduces loop power burden. |
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 |
|---|---|---|---|
| LMV324IDR | Higher supply current (250 µA/channel), wider GBW (1 MHz), no rail-to-rail output (V+ − 1.5 V min swing) | Better for higher-speed signal chains (>100 kHz), but unsuitable for ultra-low-power or true rail-to-rail output needs | Select LMV324IDR only if bandwidth >100 kHz is required and power budget allows ≥1 mA total supply current. |
| TLV2464CDR | Lower supply current (23 µA/channel), rail-to-rail I/O, higher VOS (3 mV typ), lower GBW (6.4 MHz) | Superior for ultra-low-power, rail-to-rail input/output, but less suitable for precision DC applications due to higher offset drift | Choose TLV2464CDR when both input and output rail-to-rail operation are mandatory and offset drift <10 µV/°C is acceptable. |
Compared with LMV324IDR and TLV2464CDR, LPV324MX/NOPB uniquely balances micropower (28 µA), rail-to-rail output, and 152 kHz bandwidth - making it optimal for cost-sensitive, battery-constrained applications where moderate speed and maximum output swing are prioritized over ultra-low offset or high-frequency response.
Availability
LPV324MX/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, low-power active filters, and multi-channel data acquisition requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LPV324MX/NOPB 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 manufacturing.
The LPV324MX/NOPB belongs to TI's LPV3xx-N micropower op amp family, engineered specifically for battery-powered, space-constrained applications demanding rail-to-rail output, ground-sensing inputs, and sub-100 µA total supply current.
FAQ
What is the maximum capacitive load the LPV324MX/NOPB can drive stably in unity-gain configuration?
The LPV324MX/NOPB is specified to drive up to 200 pF capacitively loaded in unity-gain follower configuration without oscillation or excessive peaking. This stability is achieved without external compensation components, simplifying PCB layout for ADC input buffering or cable driving. For loads exceeding 200 pF, TI recommends adding a series isolation resistor (e.g., 100 Ω) between the LPV324MX/NOPB output and the capacitive load to restore phase margin.
Does the LPV324MX/NOPB support true single-supply operation with input signals at ground potential?
Yes, the LPV324MX/NOPB supports true single-supply operation with input common-mode voltage down to −0.2 V, enabling direct connection of ground-referenced sensors (e.g., thermistors, strain gauges) without level-shifting circuitry. Its bipolar input stage maintains low input bias current (1.7 nA typ) at ground, minimizing offset errors in precision DC-coupled applications.
What is the typical supply current of the LPV324MX/NOPB at 2.7 V and 5 V operation?
At 2.7 V supply, the LPV324MX/NOPB draws 16 µA typical total supply current (4 µA per channel); at 5 V, it draws 28 µA typical (7 µA per channel). These values reflect its micropower design optimized for battery longevity - critical for portable instrumentation and always-on sensor nodes where average current directly determines operational lifetime.
How does the LPV324MX/NOPB's rail-to-rail output improve dynamic range in low-voltage systems?
The LPV324MX/NOPB delivers rail-to-rail output swing of V+ − 3.5 mV and V− + 90 mV at 100 kΩ load, preserving >99% of available output voltage range in 3.3 V or 5 V systems. This maximizes signal-to-noise ratio when driving ADCs, eliminates clipping of near-rail signals, and avoids the need for external level-shifting - directly improving measurement resolution and accuracy in low-voltage applications.
Is the LPV324MX/NOPB pin-compatible with standard quad op amp packages like SOIC-14 and TSSOP-14?
Yes, the LPV324MX/NOPB is offered in both SOIC-14 (D package) and TSSOP-14 (PW package) variants with identical pinout and electrical specifications. Engineers can select either package based on board density requirements without modifying schematic or layout - SOIC-14 provides legacy compatibility and thermal mass, while TSSOP-14 reduces footprint by ~42% for space-constrained portable designs.
LPV324MX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
LPV324MX/NOPB FAQ
1.How can I place an order for LPV324MX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324MX/NOPB 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 LPV324MX/NOPB reliable?
The price and inventory of LPV324MX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324MX/NOPB is usually 5 days.
3.What payment methods are accepted for LPV324MX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324MX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324MX/NOPB?
LPV324MX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324MX/NOPB 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 LPV324MX/NOPB?
For technical support, including LPV324MX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324MX/NOPB requirements.
6.How does Aetrix verify that LPV324MX/NOPB is sourced from the original manufacturer or authorized distributors?
All LPV324MX/NOPB 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 LPV324MX/NOPB meets industry standards.
7.What is the process for return or replacement of LPV324MX/NOPB?
All LPV324MX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LPV324MX/NOPB, 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 LPV324MX/NOPB part is unused and in its original packaging.
Return procedure for LPV324MX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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