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Texas Instruments LPV324PWG4
- Part No.:
- LPV324PWG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LPV324PWG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,069
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Product details
Overview
LPV324PWG4 from Texas Instruments is a quad, rail-to-rail output, low-voltage (2.7 V to 5 V), low-power operational amplifier with 28 μA typical supply current per device at 5 V, 152 kHz gain-bandwidth product, and −40°C to 85°C operating range. It delivers rail-to-rail output swing (VCC+ − 3.5 mV / VCC− + 90 mV at 100 kΩ) and supports general-purpose signal conditioning in battery-powered sensor interfaces.
For engineers reviewing the LPV324PWG4 datasheet, LPV324PWG4 pinout, LPV324PWG4 application, or LPV324PWG4 equivalent, key selection criteria include ultra-low quiescent current, input common-mode range extending to ground (−0.2 V to VCC+ − 0.8 V), stability with 1000 pF capacitive loads, and TSSOP-14 packaging for space-constrained PCB layouts.
Technical Context
The LPV324PWG4 implements a CMOS input stage with rail-to-rail output stage, enabling operation down to 2.7 V while maintaining usable output swing near both supply rails. Its simplified internal schematic includes bias networks (VBIAS1–VBIAS4) and complementary differential pairs that eliminate crossover distortion across the full output range.
It achieves stable unity-gain operation with capacitive loads up to 1000 pF without external compensation, verified via phase margin ≥71° (2.7 V) and ≥74° (5 V) at CL = 22 pF. Input offset voltage is specified at 7 mV (typ) and 10 mV (max, −40°C to 85°C), with input bias current ≤50 nA (typ) and CMRR ≥50 dB over 0–4 V common-mode range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - enables direct use with single-cell Li-ion or dual-AA battery supplies. |
| Quiescent Current (per amp) | 28 μA typical at 5 V - allows four independent amplifiers to operate continuously on <112 μA total, critical for always-on sensing nodes. |
| Gain-Bandwidth Product | 152 kHz - supports DC-coupled filtering and low-frequency signal amplification (e.g., thermistor, strain gauge outputs) without instability. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100 kΩ - maximizes dynamic range in low-voltage ADC front-ends. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - accepts signals referenced to ground in single-supply systems without level-shifting. |
| Stability | Stable with 1000 pF capacitive load - eliminates need for isolation resistors when driving ADC sample capacitors or long traces. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - meets industrial IEC 61000-4-2 system-level robustness requirements. |
Pinout & Package
TSSOP-14 (PW) package: 5.0 mm × 4.4 mm × 1.2 mm body, 0.65 mm pitch, exposed pad not present, RoHS-compliant green finish (Pb-free, no Sb/Br), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - drives external load or next-stage input with rail-to-rail swing capability. |
| 2 | 1IN− | Inverting input of Amplifier A - high-impedance CMOS node; connects to feedback network in standard configurations. |
| 3 | 1IN+ | Non-inverting input of Amplifier A - accepts sensor or reference signals within −0.2 V to VCC+ − 0.8 V range. |
| 4 | VCC− | Negative supply rail (GND in single-supply use) - must be low-impedance; decoupling capacitor required adjacent to pin. |
| 5 | 2IN+ | Non-inverting input of Amplifier B - electrically isolated from other inputs; shares same VCC− reference. |
| 6 | 2IN− | Inverting input of Amplifier B - used for differential or inverting gain configurations independent of Channel 1. |
| 7 | 2OUT | Amplifier B output - fully independent output stage; no crosstalk degradation above 100 dB at 1 kHz. |
| 8 | VCC+ | Positive supply rail (2.7–5 V) - shared power source for all four amplifiers; requires local 100 nF ceramic decoupling. |
| 9 | 3IN+ | Non-inverting input of Amplifier C - enables three-channel simultaneous signal conditioning on one IC. |
| 10 | 3IN− | Inverting input of Amplifier C - supports active filter topologies (e.g., Sallen-Key, multiple-feedback) without inter-channel coupling. |
| 11 | 3OUT | Amplifier C output - maintains specified AC performance (GBW, slew rate) even when other channels are loaded. |
| 12 | 4IN− | Inverting input of Amplifier D - allows fourth independent gain stage in compact layout. |
| 13 | 4IN+ | Non-inverting input of Amplifier D - accepts bias or reference voltages common to multiple channels. |
| 14 | 4OUT | Amplifier D output - completes quad functionality; all outputs specified for sourcing/sinking ≥2 mA at VO = 0.2 V or VCC−0.2 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of ADC input range in 3.3 V or lower systems without level-shifting circuitry. |
| Ultra-low quiescent current | 28 μA per device at 5 V allows >1-year battery life in coin-cell-powered IoT endpoints with continuous sensing. |
| Ground-sensing input | Input common-mode range includes VCC− (down to −0.2 V) - simplifies interfacing with 0–VREF transducer outputs. |
| Capacitive-load stability | Operates stably with 1000 pF loads - eliminates series resistor needed for driving SAR ADC input capacitance directly. |
| No crossover distortion | CMOS output stage ensures clean zero-crossing in AC-coupled audio or precision waveform generation applications. |
Applications
| Portable Gas Sensor Signal Conditioning | Low-Power Industrial Temperature Monitoring |
|---|---|
Use Scenario: Amplifying microamp-level current from electrochemical gas sensors powered by CR2032 batteries. IC Role / Device Role / Timing Role: LPV324PWG4 provides transimpedance gain and low-pass filtering for analog front-end, operating continuously at 2.7 V. Use Value: 28 μA quiescent current per device extends battery life beyond 2 years while maintaining 152 kHz bandwidth for transient response capture. | Use Scenario: Conditioning PT100 bridge outputs in wireless temperature nodes deployed in HVAC ducts. IC Role / Device Role / Timing Role: LPV324PWG4 performs instrumentation amplifier pre-gain, excitation buffering, and reference scaling in single-supply 3.3 V design. Use Value: Rail-to-rail output swing and −0.2 V to 4.2 V input range allow direct interface with 16-bit sigma-delta ADC without external level shifters. |
| Medical Wearable ECG Front-End | Smart Home Motion Detector Analog Processing |
Use Scenario: Amplifying and filtering sub-mV biopotential signals from dry electrodes in patch-style ECG monitors. IC Role / Device Role / Timing Role: LPV324PWG4 serves as first-stage gain, right-leg drive buffer, and lead-off detection comparator input conditioner. Use Value: 50 nA max input bias current minimizes electrode polarization error; 1000 pF load stability avoids RC snubbers on ADC input traces. | Use Scenario: Signal conditioning for PIR sensor outputs in battery-operated smart lighting controls. IC Role / Device Role / Timing Role: LPV324PWG4 provides dual-channel amplification (active/passive zones), window comparator input buffering, and LED driver bias control. Use Value: Quad integration reduces component count by 75% vs discrete op-amps; 2.7 V operation matches alkaline battery discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPV324DR | SOIC-14 package (8.65 mm × 3.91 mm), higher θJA (86°C/W), same electrical specs and pinout. | Preferred for through-hole prototyping or legacy board compatibility; less suitable for high-density portable designs. | Select LPV324DR when manual soldering or socket-based validation is required; LPV324PWG4 preferred for automated SMT production. |
| MCP6004-E/ST | Microchip quad op-amp: 1 µA lower IQ (27 µA typ), 1 MHz GBW, but only 500 pF capacitive-load stability and narrower VICR (0 to VCC−0.3 V). | Not suitable for direct replacement where 1000 pF load stability or ground-sensing input is required (e.g., direct ADC driving). | Choose MCP6004-E/ST only if higher bandwidth is prioritized and load capacitance remains <500 pF; verify input range compatibility in ground-referenced circuits. |
Compared with LPV324DR and MCP6004-E/ST, the LPV324PWG4 uniquely balances ultra-low power (28 µA), guaranteed 1000 pF stability, and true ground-sensing input in a 5.0 mm × 4.4 mm TSSOP package - making it optimal for miniaturized, battery-critical systems requiring robust analog signal integrity.
Availability
LPV324PWG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial wireless sensors, and smart home controllers requiring stable component supply with consistent parametric performance across temperature and voltage ranges.
Supply support for LPV324PWG4 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LPV324PWG4 belongs to TI's LPV3xx low-voltage op-amp family, designed specifically for cost-sensitive, space-constrained, battery-powered applications where rail-to-rail output swing and sub-100 µA quiescent current are mandatory.
FAQ
What is the maximum operating temperature range for the LPV324PWG4?
The LPV324PWG4 is characterized for operation from −40°C to +85°C. It is not rated for the extended −40°C to +125°C range - that specification applies only to the LPV324I variants (e.g., LPV324IPWG4). Always verify ambient and junction temperature limits using θJA = 113°C/W and derating curves from the official datasheet.
Does the LPV324PWG4 support rail-to-rail input as well as output?
No, the LPV324PWG4 features rail-to-rail *output* swing but has a limited input common-mode range of −0.2 V to VCC+ − 0.8 V. It does *not* support rail-to-rail input - the inputs cannot accept signals within 0.8 V of VCC+. For true rail-to-rail input capability, consider TI's TLV9004 or similar families.
Can the LPV324PWG4 drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes - the LPV324PWG4 guarantees rail-to-rail output swing into 100 kΩ loads (VCC+ − 3.5 mV / VCC− + 90 mV). Driving a 10 kΩ load is well within its sourcing/sinking capability (≥2 mA at VO = 0.2 V or VCC−0.2 V), though output swing will compress slightly (to ~VCC+ − 15 mV / VCC− + 120 mV per datasheet Figure 7).
Is the LPV324PWG4 pin-compatible with other quad op-amps in TSSOP-14 packages?
The LPV324PWG4 uses the industry-standard TSSOP-14 pinout for quad op-amps (1OUT, 1IN−, 1IN+, VCC−, 2IN+, 2IN−, 2OUT, VCC+, 3IN+, 3IN−, 3OUT, 4IN−, 4IN+, 4OUT), matching LM324, TLC274, and MCP6004 pinouts. However, electrical behavior (e.g., input bias, GBW, supply current) differs significantly - verify functional compatibility before drop-in replacement.
What decoupling is recommended for the LPV324PWG4 VCC+ and VCC− pins?
A minimum of 100 nF X7R ceramic capacitor placed ≤2 mm from each VCC+ and VCC− pin is required. For systems with noisy power rails or fast digital switching nearby, add a 1 µF tantalum or polymer capacitor in parallel. Avoid shared vias between VCC+ and VCC− return paths to prevent ground bounce coupling into sensitive analog inputs.
LPV324PWG4 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
LPV324PWG4 FAQ
1.How can I place an order for LPV324PWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324PWG4 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 LPV324PWG4 reliable?
The price and inventory of LPV324PWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324PWG4 is usually 5 days.
3.What payment methods are accepted for LPV324PWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324PWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324PWG4?
LPV324PWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324PWG4 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 LPV324PWG4?
For technical support, including LPV324PWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324PWG4 requirements.
6.How does Aetrix verify that LPV324PWG4 is sourced from the original manufacturer or authorized distributors?
All LPV324PWG4 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 LPV324PWG4 meets industry standards.
7.What is the process for return or replacement of LPV324PWG4?
All LPV324PWG4 units undergo pre-shipment inspection (PSI). If there is an issue with LPV324PWG4, 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 LPV324PWG4 part is unused and in its original packaging.
Return procedure for LPV324PWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV324PWG4 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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LM324DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902DR
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LM358P
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