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Texas Instruments LPV324DG4
- Part No.:
- LPV324DG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV324DG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,473
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Product details
Overview
LPV324DG4 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 (all four channels), 152 kHz gain-bandwidth product, and −40°C to 85°C operating temperature range. It delivers rail-to-rail output swing (VCC+ − 3.5 mV / VCC− + 90 mV at 100-kΩ load) and supports general-purpose signal conditioning in battery-powered sensor interfaces.
For engineers reviewing the LPV324DG4 datasheet, LPV324DG4 pinout, LPV324DG4 application, or LPV324DG4 equivalent, this page provides verified electrical specifications, SOIC-14 package details, real-world use cases in portable instrumentation and active filtering, and two validated alternative parts with documented functional trade-offs.
Technical Context
The LPV324DG4 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 simplified internal schematic includes bias networks (VBIAS1–VBIAS4) for stable quiescent current across temperature.
It achieves stability with capacitive loads up to 1000 pF and exhibits no crossover distortion. Electrical characteristics are fully specified at both 2.7 V and 5 V supply, with input offset voltage ≤11 mV over −40°C to 125°C for the I-grade variant-though LPV324DG4 itself is rated for −40°C to 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad amplifier - enables multi-stage filtering or simultaneous signal conditioning of four analog inputs without board area penalty. |
| Supply Voltage Range | 2.7 V to 5 V - compatible with single-cell Li-ion, 3.3 V logic rails, and legacy 5 V systems. |
| Supply Current (typ) | 28 μA (all four channels) at 5 V - enables years of operation on coin-cell batteries in always-on monitoring nodes. |
| Gain-Bandwidth Product | 152 kHz - sufficient for anti-aliasing, sensor amplification, and DC-coupled control loops below 10 kHz. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100-kΩ load - maximizes dynamic range in low-voltage ADC front-ends. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - supports ground-referenced inputs and single-supply transducer interfacing. |
| ESD Protection | 2 kV HBM, 200 V MM, 1 kV CDM - meets industrial handling requirements without external protection. |
Pinout & Package
LPV324DG4 is housed in a 14-pin SOIC (D) package with standard 1.27 mm pitch, 8.65 mm × 3.91 mm body, and RoHS-compliant CU NIPDAU lead finish (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of Channel 1 - drives loads up to 100 kΩ with rail-to-rail swing. |
| 2 | 1IN− | Inverting input of Channel 1 - high-impedance CMOS node (IIB ≤ 50 nA). |
| 3 | 1IN+ | Non-inverting input of Channel 1 - accepts signals within −0.2 V to VCC+ − 0.8 V. |
| 4 | VCC− | Negative supply rail (typically GND) - shared return for all four amplifiers. |
| 5 | 2IN+ | Non-inverting input of Channel 2 - electrically isolated but thermally coupled to other channels. |
| 6 | 2IN− | Inverting input of Channel 2 - matched bias and offset characteristics with Channel 1. |
| 7 | 2OUT | Output of Channel 2 - identical AC/DC performance to Pin 1. |
| 8 | VCC+ | Positive supply rail (2.7 V to 5 V) - powers all four amplifiers from single source. |
| 9 | 3OUT | Output of Channel 3 - enables independent gain stages without inter-channel crosstalk >100 dB @ 1 kHz. |
| 10 | 3IN− | Inverting input of Channel 3 - same input structure and noise profile as Pins 2 and 6. |
| 11 | 3IN+ | Non-inverting input of Channel 3 - supports DC-coupled sensor excitation and feedback. |
| 12 | 4IN+ | Non-inverting input of Channel 4 - allows simultaneous processing of four differential or single-ended signals. |
| 13 | 4IN− | Inverting input of Channel 4 - full channel matching confirmed per production test data. |
| 14 | 4OUT | Output of Channel 4 - delivers same slew rate (0.1 V/μs) and noise (146 nV/√Hz @ 5 V) as other outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of ADC reference voltage in 3.3 V systems, increasing effective resolution by up to 1 LSB. |
| Low 28 μA supply current | Reduces thermal drift and PCB self-heating in dense layouts, critical for precision multi-channel measurement. |
| Stable with 1000 pF capacitive load | Eliminates need for isolation resistors when driving ADC input capacitors or long traces, simplifying layout. |
| No crossover distortion | Preserves signal fidelity in audio and sensor signal paths where THD < 0.01% is required near zero-crossings. |
| −40°C to 85°C operation | Validated performance across automotive cabin, industrial control, and outdoor IoT environments without derating. |
Applications
| Portable Gas Sensor Interface | Multi-Channel Thermistor Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from electrochemical gas sensors powered by CR2032 coin cells. IC Role / Device Role / Timing Role: LPV324DG4 serves as quad transimpedance and buffer stage, converting current to voltage and driving 12-bit SAR ADC inputs. Use Value: 28 μA total quiescent current extends battery life beyond 5 years; rail-to-rail output ensures full 0–3.3 V ADC range usage. |
Use Scenario: Simultaneous linearization and amplification of four NTC thermistors in HVAC control panels. IC Role / Device Role / Timing Role: LPV324DG4 configures as precision voltage followers and difference amplifiers for ratiometric resistance measurement. Use Value: Matched channel offset (<11 mV) and drift (<4 μV/°C) minimize calibration burden; SOIC-14 footprint eases hand-soldering during prototyping. |
| Low-Power Active Anti-Aliasing Filter | Industrial 4–20 mA Loop Receiver |
|
Use Scenario: 2nd-order Sallen-Key low-pass filter preceding a microcontroller's ADC in battery-operated data loggers. IC Role / Device Role / Timing Role: LPV324DG4 implements dual-filter sections (two channels per filter) with unity-gain stable architecture. Use Value: 152 kHz GBW supports cutoff frequencies up to 10 kHz; 1000 pF load tolerance eliminates output RC snubbing components. |
Use Scenario: Converting 4–20 mA loop current to 0.5–2.5 V for isolation amplifier input in PLC analog input modules. IC Role / Device Role / Timing Role: LPV324DG4 operates as precision I-to-V converter (R = 125 Ω) and level-shifting buffer for isolated domain. Use Value: Input bias current ≤50 nA prevents significant error in high-precision shunt-based conversion; −0.2 V input range accommodates negative compliance margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPV324DR | Same silicon die and SOIC-14 package; differs only in reel packaging (2500 pcs vs. tube of 50) and top-side marking (LPV324 vs. LPV324). | No functional difference; suitable for high-volume automated assembly where tape-and-reel feed is required. | Select LPV324DR for SMT production lines; LPV324DG4 remains optimal for manual prototyping and low-volume qualification. |
| MCP6004-E/SL | Higher supply current (100 μA/channel), wider supply range (1.8–6.0 V), but lower GBW (1 MHz) and no guaranteed 125°C operation. | Better for 1.8 V MCU interfaces; less suitable for ultra-low-power >5-year deployments due to 4× higher ICC. | Choose MCP6004-E/SL only if 1.8 V operation or higher speed is mandatory; LPV324DG4 remains superior for sub-30 μA, 3.3 V–5 V systems. |
Compared with LPV324DR, LPV324DG4 offers identical electrical performance in a tube-packaged form ideal for engineering validation; versus MCP6004-E/SL, it delivers 3.6× lower supply current at the cost of bandwidth, making it the preferred choice for energy-constrained, medium-bandwidth analog signal chains.
Availability
LPV324DG4 is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor nodes, and battery-powered medical devices requiring stable component supply and long-term manufacturability.
Supply support for LPV324DG4 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-amps and low-power signal chain solutions.
The LPV324DG4 belongs to TI's LPV3xx family of ultra-low-power rail-to-rail op-amps, designed specifically for cost-sensitive, space-constrained, and battery-operated applications where supply current below 30 μA per channel is critical.
FAQ
What is the maximum operating temperature range for LPV324DG4?
The LPV324DG4 is characterized for operation from −40°C to +85°C. While the LPV324I variants extend to 125°C, LPV324DG4 is not tested or guaranteed beyond 85°C. Designers targeting extended temperature environments should verify thermal derating of parameters like input offset voltage and supply current using the datasheet's temperature curves.
Does LPV324DG4 support true rail-to-rail input?
No, LPV324DG4 does not support rail-to-rail input. Its input common-mode voltage range is specified as −0.2 V to VCC+ − 0.8 V. This means the inputs can go 0.2 V below ground but cannot reach VCC+ - limiting direct sensing of signals near the positive rail without level shifting. The rail-to-rail capability applies only to the output stage.
Can LPV324DG4 drive a 1000-pF capacitive load without oscillation?
Yes, LPV324DG4 is explicitly characterized for stability with up to 1000 pF capacitive load, as confirmed in Figure 14 and 15 of the datasheet. This eliminates the need for series isolation resistors when interfacing directly with ADC input capacitors or long PCB traces, simplifying design and improving transient response.
What is the typical input offset voltage for LPV324DG4 at 25°C and 5 V supply?
The typical input offset voltage for LPV324DG4 is 7 mV at TA = 25°C and VCC = 5 V, with a maximum of 10 mV over the full −40°C to +85°C operating range. This value is confirmed in the "5-V electrical characteristics" table on page 6 of the SLOS433I datasheet.
Is LPV324DG4 pin-compatible with other quad op-amps like LM324 or TLC274?
No, LPV324DG4 is not pin-compatible with LM324 or TLC274. While all three use SOIC-14 packages, their pinouts differ: LPV324DG4 follows TI's modern quad op-amp assignment (1OUT, 1IN−, 1IN+, VCC−, 2IN+, 2IN−, 2OUT, VCC+, 3OUT, 3IN−, 3IN+, 4IN+, 4IN−, 4OUT), whereas LM324 uses a different sequence. Board redesign is required for substitution.
LPV324DG4 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:
- 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
LPV324DG4 FAQ
1.How can I place an order for LPV324DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324DG4 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 LPV324DG4 reliable?
The price and inventory of LPV324DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324DG4 is usually 5 days.
3.What payment methods are accepted for LPV324DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324DG4?
LPV324DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324DG4 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 LPV324DG4?
For technical support, including LPV324DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324DG4 requirements.
6.How does Aetrix verify that LPV324DG4 is sourced from the original manufacturer or authorized distributors?
All LPV324DG4 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 LPV324DG4 meets industry standards.
7.What is the process for return or replacement of LPV324DG4?
All LPV324DG4 units undergo pre-shipment inspection (PSI). If there is an issue with LPV324DG4, 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 LPV324DG4 part is unused and in its original packaging.
Return procedure for LPV324DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV324DG4 Tags
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LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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