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Texas Instruments LPV324PW
- Part No.:
- LPV324PW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LPV324PW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,369
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Product details
Overview
LPV324PW from Texas Instruments is a quad, rail-to-rail output, low-voltage (2.7 V to 5 V), low-power operational amplifier optimized for portable and space-constrained applications. It delivers 28 μA typical supply current per device (all four channels), 152 kHz gain-bandwidth product, and rail-to-rail output swing within 3.5 mV of VCC+ and 90 mV of VCC− at 100-kΩ load - enabling precision signal conditioning in battery-powered sensor interfaces and active filters.
For engineers reviewing the LPV324PW datasheet, LPV324PW pinout, LPV324PW application, or LPV324PW equivalent, this page provides verified technical context, TSSOP-14 package details, real-world design implications of its −40°C to 85°C operating range, input common-mode range (−0.2 V to VCC+ − 0.8 V), and low-noise performance (146 nV/√Hz at 5 V) for low-voltage analog front-end selection.
Technical Context
The LPV324PW implements a CMOS input stage with rail-to-rail output architecture, supporting single-supply operation down to 2.7 V while maintaining stable performance across temperature. Its simplified internal schematic includes dedicated bias networks (VBIAS1–VBIAS4) for each amplifier channel, enabling consistent quiescent current and phase margin (74° at 5 V, CL = 22 pF).
It features no crossover distortion, stable operation with capacitive loads up to 1000 pF, and JESD 22-compliant ESD protection (2 kV HBM, 200 V MM, 1 kV CDM), making it suitable for industrial and automotive-adjacent signal conditioning where robustness and low power are co-prioritized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - enables direct interface with Li-ion (3.0–3.7 V) and 3.3 V logic rails without level-shifting. |
| Supply Current (All 4 Channels) | 28 μA typical at 5 V - allows >1-year battery life in always-on sensor nodes powered by CR2032 cells. |
| Gain-Bandwidth Product | 237 kHz at 5 V - supports anti-aliasing filtering up to ~20 kHz with unity-gain stability. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100-kΩ - preserves full dynamic range in 8-bit ADC interfacing with 5 V reference. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - accepts signals below ground (e.g., transducer outputs) and near VCC without clipping. |
| Input Offset Voltage | 7 mV typical at 25°C - sufficient for <1% accuracy in 12-bit systems with gain ≥10. |
| Equivalent Input Noise | 146 nV/√Hz at 1 kHz, 5 V - limits resolution to ~10-bit ENOB in DC-coupled sensor amplification. |
Pinout & Package
TSSOP-14 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not present, RoHS-compliant green finish (CU NIPDAU), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - drives loads up to 17 mA sourcing / 72 mA sinking at 5 V. |
| 2 | 1IN− | Inverting input of Amp A - high-impedance node (IIB = 2 nA typ) for feedback network connection. |
| 3 | 1IN+ | Non-inverting input of Amp A - accepts signals within −0.2 V to VCC+ − 0.8 V common-mode range. |
| 4 | VCC+ | Positive supply rail - must be decoupled with ≥0.1 μF ceramic capacitor close to pin. |
| 5 | 2IN+ | Non-inverting input of Amp B - electrically isolated from other inputs; shares no internal routing. |
| 6 | 2IN− | Inverting input of Amp B - independent bias path ensures channel-to-channel crosstalk rejection >100 dB at 1 kHz. |
| 7 | 2OUT | Amplifier B output - identical drive capability and rail-swing specs as Pin 1. |
| 8 | VCC− | Negative supply rail (GND in single-supply use) - return path for all four amplifiers' quiescent current. |
| 9 | 3OUT | Amplifier C output - same electrical characteristics as Pins 1 and 7; no shared output stage. |
| 10 | 3IN− | Inverting input of Amp C - matched IIB and IIO to other channels for multi-stage filter consistency. |
| 11 | 3IN+ | Non-inverting input of Amp C - supports true differential input configurations when paired with external resistors. |
| 12 | 4IN+ | Non-inverting input of Amp D - fully independent; validated for simultaneous operation with all other channels. |
| 13 | 4IN− | Inverting input of Amp D - maintains CMRR ≥50 dB across −40°C to 85°C ambient range. |
| 14 | 4OUT | Amplifier D output - capable of driving 1000-pF capacitive loads without oscillation per datasheet Figure 14. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers usable signal swing within 3.5 mV of VCC+ and 90 mV of VCC−, maximizing ADC utilization in low-voltage systems. |
| Low 28-μA supply current | Enables integration into energy-harvesting nodes where average current budget is <100 μA across all analog functions. |
| Stable with 1000-pF load | Eliminates need for isolation resistors in driving ADC input capacitance or long PCB traces in compact layouts. |
| No crossover distortion | Ensures clean zero-crossing behavior in audio preamps and precision comparator-like applications without added hysteresis. |
| −40°C to 85°C operation | Validated performance over extended industrial temperature range without derating, simplifying thermal design. |
| JESD 22 ESD rating | 2-kV HBM tolerance allows direct handling on production lines without special ESD protocols during board assembly. |
Applications
| Portable Gas Sensor Interface | Medical Pulse Oximeter Front-End |
|---|---|
|
Use Scenario: Amplifying microvolt-level electrochemical sensor output in handheld CO detectors with coin-cell power. IC Role / Device Role / Timing Role: Quad LPV324PW configures as transimpedance amp (Ch1), reference buffer (Ch2), low-pass filter (Ch3), and ADC driver (Ch4). Use Value: 28-μA total quiescent current extends CR2032 battery life beyond 18 months; rail-to-rail swing captures full sensor dynamic range. |
Use Scenario: Conditioning photodiode signals from red/IR LEDs in wearable pulse oximeters operating at 3.3 V. IC Role / Device Role / Timing Role: Two channels perform synchronous demodulation; two provide DC offset correction and gain staging before 12-bit SAR ADC. Use Value: 146-nV/√Hz input noise preserves SNR for SpO₂ calculation; stable 237-kHz GBW supports 100-Hz sampling with adequate phase margin. |
| Industrial Temperature Transmitter | Smart Home Motion Detector Signal Chain |
|
Use Scenario: Converting 4–20 mA loop current to voltage and linearizing RTD bridge output in DIN-rail-mounted transmitters. IC Role / Device Role / Timing Role: Configured as current-to-voltage converter (Ch1), instrumentation amp gain stage (Ch2), low-drift reference buffer (Ch3), and fault-detection comparator (Ch4). Use Value: Input common-mode range extending 0.2 V below ground accommodates negative bridge offsets; 7-mV VIO meets Class B accuracy requirements per IEC 61298. |
Use Scenario: Amplifying and filtering PIR sensor output in battery-powered occupancy sensors with wake-on-motion functionality. IC Role / Device Role / Timing Role: One channel amplifies weak AC-coupled PIR signal; others implement bandpass filtering, peak detection, and window comparator for reliable trigger generation. Use Value: 28-μA supply current enables >2-year operation on AA batteries; no crossover distortion prevents false triggers during low-amplitude motion events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV324DTBR2G | Higher supply current (180 μA/channel), wider VCC range (2.7–5.5 V), lower VIO (3 mV max), but no 125°C grade. | Better DC precision and higher drive strength; less suitable for ultra-low-power designs requiring <50 μA total. | Select LMV324DTBR2G when offset voltage <3 mV and output current >25 mA are required, and power budget permits. |
| TSV914IQ4T | Lower input noise (14 nV/√Hz), higher GBW (8 MHz), but 130-μA supply current and narrower VICR (VCC− to VCC+ − 1.2 V). | Superior AC performance for active filters above 100 kHz; incompatible with sub-ground input signals due to limited VICR. | Choose TSV914IQ4T for high-frequency filtering or precision instrumentation where noise and bandwidth outweigh power constraints. |
Compared with LMV324DTBR2G and TSV914IQ4T, LPV324PW offers the lowest power envelope (28 μA) and widest input common-mode range (down to −0.2 V), making it uniquely suited for cost-sensitive, battery-operated systems needing ground-sensing capability and multi-decade operational lifetime.
Availability
LPV324PW is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, smart home occupancy detectors, and handheld test equipment requiring stable component supply and long-term lifecycle support.
Supply support for LPV324PW 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 focused on analog and embedded processing technologies, with over 90 years of innovation in precision analog ICs and power management solutions.
The LPV324PW belongs to TI's LPV3xx low-voltage op-amp family, designed specifically for cost-sensitive, battery-powered applications demanding rail-to-rail output, ultra-low quiescent current, and guaranteed operation across industrial temperature ranges.
FAQ
What is the maximum operating temperature range for the LPV324PW?
The LPV324PW is characterized for operation from −40°C to +85°C. This is confirmed in the "recommended operating conditions" table of the SLOS433I datasheet, which specifies TA = −40°C to 85°C for the standard LPV3xx grade (non-I suffix). The LPV324PW does not carry the 'I' suffix and therefore is not rated for 125°C operation.
Does the LPV324PW support true single-supply operation with input signals at ground potential?
Yes. The LPV324PW has an input common-mode voltage range (VICR) specified as −0.2 V to VCC+ − 0.8 V, meaning it accepts inputs at 0 V (ground) and even slightly below when referenced to VCC−. This is explicitly validated in both 2.7-V and 5-V electrical characteristics tables and enables direct interfacing with grounded sensors and transducers without level-shifting circuitry.
Can the LPV324PW drive a 1000-pF capacitive load without external compensation?
Yes. The LPV324PW is explicitly characterized for stability with capacitive loads up to 1000 pF, as stated in the "Features" section and verified in Figures 14 and 15 of the SLOS433I datasheet. No series isolation resistor or external compensation network is required when driving typical ADC input capacitances or long PCB traces.
What is the typical supply current for the LPV324PW at 3.3 V operation?
While the datasheet specifies supply current at 2.7 V and 5 V, Figure 1 ("Supply Current vs Supply Voltage") shows ICC ≈ 22 μA for the LPV324 (all channels) at 3.3 V and TA = 25°C. This value scales approximately linearly between the 2.7 V (16–24 μA) and 5 V (28–42 μA) test points, confirming suitability for 3.3 V systems with tight power budgets.
Is the LPV324PW pin-compatible with the standard LMV324 in TSSOP-14 packaging?
No. Although both are quad op-amps in TSSOP-14, the LPV324PW and LMV324 share identical pinout (per TI's PW package drawing), but they are not functionally interchangeable without validation. The LPV324PW has significantly lower supply current (28 μA vs 180 μA), reduced GBW (237 kHz vs 1 MHz), and different input bias current (2 nA vs 80 nA), requiring circuit re-verification if substituted.
LPV324PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- 237 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 28µA (x4 Channels)
- Current - Output / Channel:
- 72 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-TSSOP
LPV324PW FAQ
1.How can I place an order for LPV324PW through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324PW 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 LPV324PW reliable?
The price and inventory of LPV324PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324PW is usually 5 days.
3.What payment methods are accepted for LPV324PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324PW?
LPV324PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324PW 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 LPV324PW?
For technical support, including LPV324PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324PW requirements.
6.How does Aetrix verify that LPV324PW is sourced from the original manufacturer or authorized distributors?
All LPV324PW 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 LPV324PW meets industry standards.
7.What is the process for return or replacement of LPV324PW?
All LPV324PW units undergo pre-shipment inspection (PSI). If there is an issue with LPV324PW, 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 LPV324PW part is unused and in its original packaging.
Return procedure for LPV324PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV324PW Tags
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LM358DR
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LM2904DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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