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Texas Instruments LPV324DRE4
- Part No.:
- LPV324DRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV324DRE4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,819
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Product details
Overview
LPV324DRE4 from Texas Instruments is a quad, low-voltage (2.7 V to 5 V), rail-to-rail output operational amplifier optimized for ultra-low-power operation (28 μA total supply current at 5 V), wide temperature range (−40°C to 85°C), and general-purpose signal conditioning in space-constrained portable systems. It delivers 152 kHz gain-bandwidth product, 7 mV typical input offset voltage, and rail-to-rail output swing within 3.5 mV of VCC+ and 90 mV of VCC− at 100-kΩ load.
For engineers reviewing the LPV324DRE4 datasheet, LPV324DRE4 pinout, LPV324DRE4 application, or LPV324DRE4 equivalent, this page provides verified electrical specifications, SOIC-14 package details, real-world use cases in battery-powered sensor interfaces and active filters, and validated alternative parts with documented functional trade-offs.
Technical Context
The LPV324DRE4 implements a CMOS input stage with rail-to-rail output stage, enabling operation down to 2.7 V while maintaining input common-mode range from −0.2 V to VCC+ − 0.8 V. Its internal biasing supports stable operation with capacitive loads up to 1000 pF without external compensation.
It belongs to the LPV3xx family - low-power derivatives of the LMV3xx series - characterized by no crossover distortion, JESD 78 Class II latch-up immunity (>100 mA), and ESD robustness per JESD 22 (2 kV HBM, 200 V MM, 1 kV CDM). The device is specified across −40°C to 85°C for standard-grade variants like LPV324DRE4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - enables direct integration into single-cell Li-ion or dual-cell alkaline systems without LDO pre-regulation. |
| Quiescent Current (Total) | 28 μA at 5 V - allows four independent amplifiers to operate continuously for years on coin-cell batteries. |
| Gain-Bandwidth Product | 152 kHz - sufficient for DC-coupled sensor buffering, low-frequency active filtering, and precision comparator hysteresis circuits. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100-kΩ - maximizes dynamic range in low-voltage ADC front-ends and DAC output buffers. |
| Input Offset Voltage | 7 mV typical (25°C), 11 mV max (−40°C to 125°C) - suitable for non-critical analog signal conditioning where sub-mV precision is not required. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - supports ground-referenced inputs and single-supply transducer interfacing without level-shifting. |
| Stable Capacitive Load | Up to 1000 pF - eliminates need for isolation resistors when driving long traces or ADC sample-and-hold inputs. |
Pinout & Package
LPV324DRE4 is packaged in a 14-pin SOIC (D package), 3.90 mm × 8.65 mm body, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. RoHS-compliant, green (Pb-free, Sb/Br-free) finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of amplifier channel 1 - drives external load directly; rail-to-rail capable. |
| 2 | 1IN− | Inverting input of channel 1 - high-impedance CMOS node; accepts signals within VICR. |
| 3 | 1IN+ | Non-inverting input of channel 1 - same high-impedance, ground-inclusive common-mode range as IN−. |
| 4 | VCC− | Negative supply rail (typically GND) - shared return path for all four amplifiers. |
| 5 | 2IN+ | Non-inverting input of channel 2 - electrically isolated but internally biased identically to other inputs. |
| 6 | 2IN− | Inverting input of channel 2 - identical electrical characteristics to pin 2. |
| 7 | 2OUT | Output of amplifier channel 2 - fully independent output stage; no crosstalk degradation below 100 dB at 1 kHz. |
| 8 | VCC+ | Positive supply rail (2.7–5 V) - powers all four channels; decoupling recommended at pin. |
| 9 | 3OUT | Output of amplifier channel 3 - matches performance of pins 1 and 7 under identical conditions. |
| 10 | 3IN− | Inverting input of channel 3 - shares same input bias current (1.7–50 nA) and offset specs as other inputs. |
| 11 | 3IN+ | Non-inverting input of channel 3 - symmetric input structure ensures matched AC/DC behavior across all channels. |
| 12 | 4IN+ | Non-inverting input of channel 4 - fourth independent high-impedance node; usable for multi-channel sensing. |
| 13 | 4IN− | Inverting input of channel 4 - full 14-pin symmetry confirmed per TI SLOS433I Figure 1 (top view). |
| 14 | 4OUT | Output of amplifier channel 4 - completes quad functionality; all outputs rated for ±17 mA sourcing/sinking. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 28 μA total for four op-amps - reduces system standby power by >90% vs. standard LM324-class devices. |
| Rail-to-rail output | Swings to within 3.5 mV of VCC+ and 90 mV of VCC− - preserves >98% of available voltage headroom at 5 V supply. |
| No crossover distortion | CMOS output stage eliminates dead-zone nonlinearities - critical for accurate low-amplitude AC signal amplification. |
| Wide input common-mode range | Extends 0.2 V below ground and 0.8 V below VCC+ - enables direct connection of unipolar sensors (e.g., thermistors, RTDs) without external biasing. |
| Capacitive load drive | Stable with up to 1000 pF - eliminates need for output series resistors when interfacing with SAR or sigma-delta ADCs. |
| High ESD robustness | 2 kV HBM, 200 V MM, 1 kV CDM - improves manufacturing yield and field reliability in handheld and industrial environments. |
Applications
| Portable Gas Sensor Interface | Low-Power Active Filter |
|---|---|
|
Use Scenario: Amplifying microamp-level current from electrochemical gas sensors powered by CR2032 coin cells. IC Role / Device Role / Timing Role: LPV324DRE4 operates as transimpedance amplifier (TIA) and buffer in a 4-channel sensor array, running continuously at 2.7 V. Use Value: 28 μA total supply current extends battery life beyond 5 years; rail-to-rail output ensures full utilization of 12-bit ADC reference range. |
Use Scenario: Implementing 2nd-order low-pass filtering for biomedical ECG front-end before digitization. IC Role / Device Role / Timing Role: LPV324DRE4 configures two channels as Sallen-Key filter sections, one as reference buffer, one as level shifter. Use Value: 152 kHz GBW supports cutoff frequencies up to 10 kHz with <1% passband ripple; low noise (146 nV/√Hz) preserves SNR. |
| Industrial Temperature Monitoring Node | Smart Home Motion Detector Signal Chain |
|
Use Scenario: Conditioning PT100 bridge outputs in battery-operated wireless temperature nodes deployed in HVAC ducts. IC Role / Device Role / Timing Role: LPV324DRE4 serves as instrumentation amplifier front-end (with external resistors), excitation buffer, and ADC driver. Use Value: −40°C to 85°C rating ensures operation in unconditioned environments; input VICR includes ground, eliminating need for negative bias. |
Use Scenario: Amplifying weak pyroelectric sensor outputs in motion-triggered lighting controls powered by energy-harvesting circuits. IC Role / Device Role / Timing Role: LPV324DRE4 functions as AC-coupled preamplifier, window comparator, and wake-up signal generator. Use Value: No crossover distortion prevents false triggers on low-amplitude IR pulses; 1000-pF load stability simplifies PCB layout near MCU GPIOs. |
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 |
|---|---|---|---|
| LMV324DR | Higher supply current (125 μA total at 5 V), wider GBW (1 MHz), no guaranteed 125°C operation. | Better for higher-speed signal paths (e.g., audio preamps); less suitable for multi-year battery life requirements. | Select LMV324DR only if bandwidth >200 kHz is required and power budget permits >4× higher ICC. |
| TLV2464CDR | Lower input offset (2 mV typ), higher drive strength (30 mA), but 125 μA supply current and narrower VICR (to VCC− + 0.3 V). | Preferred for precision sensor bridges requiring sub-5-mV offset; unsuitable for ground-sensing configurations. | Choose TLV2464CDR when offset voltage dominates error budget and ground-referenced inputs are not used. |
Compared with LMV324DR and TLV2464CDR, LPV324DRE4 uniquely balances ultra-low ICC, rail-to-rail output, ground-inclusive input range, and cost-effectiveness for long-life, low-voltage embedded sensing - making it optimal where power efficiency and design simplicity outweigh raw speed or precision.
Availability
LPV324DRE4 is available at Aetrix Electronics and suitable for portable medical monitors, wireless industrial sensor nodes, and smart home environmental controllers requiring stable component supply over extended production lifecycles.
Supply support for LPV324DRE4 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 amplifiers and low-power signal chain solutions.
The LPV324DRE4 belongs to TI's LPV3xx low-voltage op-amp product line, designed specifically for battery-powered and energy-constrained applications where minimizing quiescent current without sacrificing rail-to-rail functionality is essential.
FAQ
What is the maximum operating temperature range for LPV324DRE4?
The LPV324DRE4 is rated for operation from −40°C to +85°C. This standard-grade temperature specification is explicitly defined in the TI SLOS433I datasheet and applies to all SOIC-packaged LPV324 variants including LPV324DRE4. For extended-range applications up to 125°C, the LPV324IDR variant must be selected.
Does LPV324DRE4 support true rail-to-rail input operation?
No, LPV324DRE4 does not support rail-to-rail input. Its input common-mode voltage range (VICR) is specified as −0.2 V to VCC+ − 0.8 V, meaning it accepts inputs slightly below ground but cannot swing fully to VCC+. However, its output is rail-to-rail, reaching within 3.5 mV of VCC+ and 90 mV of VCC− at 100-kΩ load.
Can LPV324DRE4 drive a 1000-pF capacitive load without oscillation?
Yes, LPV324DRE4 is explicitly characterized for stability with capacitive loads up to 1000 pF, as confirmed in the "Stable With Capacitive Load of 1000 pF" feature statement and Figure 14–15 of the SLOS433I datasheet. No external isolation resistor is required when driving typical ADC input capacitances.
What is the typical supply current of LPV324DRE4 at 2.7 V?
At 2.7 V supply and 25°C, the typical supply current for LPV324DRE4 is 16 μA (per the 2.7-V electrical characteristics table on page 5 of SLOS433I). This represents the total current for all four amplifier channels combined, confirming its suitability for ultra-low-power designs.
Is LPV324DRE4 pin-compatible with standard LM324 or LMV324 packages?
LPV324DRE4 uses the same SOIC-14 (D) package footprint and pinout as LM324 and LMV324, enabling drop-in replacement in existing layouts. However, due to differences in input stage architecture (CMOS vs. bipolar), designers must verify that the wider VICR and lower ICC do not affect biasing or loop stability in legacy circuits.
LPV324DRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-SOIC
LPV324DRE4 FAQ
1.How can I place an order for LPV324DRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324DRE4 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 LPV324DRE4 reliable?
The price and inventory of LPV324DRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324DRE4 is usually 5 days.
3.What payment methods are accepted for LPV324DRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324DRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324DRE4?
LPV324DRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324DRE4 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 LPV324DRE4?
For technical support, including LPV324DRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324DRE4 requirements.
6.How does Aetrix verify that LPV324DRE4 is sourced from the original manufacturer or authorized distributors?
All LPV324DRE4 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 LPV324DRE4 meets industry standards.
7.What is the process for return or replacement of LPV324DRE4?
All LPV324DRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LPV324DRE4, 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 LPV324DRE4 part is unused and in its original packaging.
Return procedure for LPV324DRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV324DRE4 Tags
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