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Texas Instruments LPV324DR
- Part No.:
- LPV324DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV324DR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,360
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Product details
Overview
LPV324DR 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 input common-mode range extending to −0.2 V below VCC− - used in battery-powered sensor signal conditioning and portable medical instrumentation.
For engineers reviewing the LPV324DR datasheet, LPV324DR pinout, LPV324DR application, or LPV324DR equivalent, key selection criteria include its rail-to-rail output swing (VCC+ − 3.5 mV / VCC− + 90 mV at 100 kΩ), stable operation with 1000 pF capacitive load, −40°C to 85°C temperature rating, and SOIC-14 package compatibility with legacy board layouts.
Technical Context
The LPV324DR implements a CMOS input stage with rail-to-rail output using complementary push-pull drivers, enabling full-swing operation into high-impedance loads. Its internal biasing supports stable DC-coupled configurations across the entire input common-mode range (−0.2 V to VCC+ − 0.8 V) and delivers 152 kHz unity-gain bandwidth at 5 V with only 28 μA total quiescent current.
It features no crossover distortion, achieves 71° phase margin with 22 pF capacitive load, and maintains functional stability up to 1000 pF - making it suitable for driving ADC inputs, active filter stages, and low-noise transducer interfaces without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - operates from single-cell Li-ion or two-cell alkaline supplies without regulation. |
| Quiescent Current (All Channels) | 28 μA typical at 5 V - enables multi-year battery life in always-on sensor nodes. |
| Gain-Bandwidth Product | 152 kHz - sufficient for anti-aliasing filters, DC-coupled amplification, and slow-control loops. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100 kΩ - maximizes dynamic range in low-voltage data acquisition. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - accepts signals below ground and near VCC, simplifying level-shifting. |
| Capacitive Load Drive | Stable with up to 1000 pF - directly drives ADC sample-and-hold inputs or long PCB traces. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - robust handling in manual assembly and field-replaceable modules. |
Pinout & Package
LPV324DR is housed in a 14-pin SOIC (Package Drawing D), 3.9 mm × 8.7 mm body, 1.75 mm height, RoHS-compliant, green (Pb-free, Sb/Br-free) finish, 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. |
| 2 | 1IN− | Inverting input of Amplifier A - connects to feedback network or differential reference. |
| 3 | 1IN+ | Non-inverting input of Amplifier A - accepts sensor, reference, or signal source with ground-referenced capability. |
| 4 | VCC− | Negative supply rail - tied to GND in single-supply systems; enables true zero-input operation. |
| 5 | 2IN+ | Non-inverting input of Amplifier B - independent channel for dual-path signal processing. |
| 6 | 2IN− | Inverting input of Amplifier B - supports inverting gain configuration or comparator hysteresis. |
| 7 | 2OUT | Amplifier B output - electrically isolated from Channel A; shares VCC− and VCC+ rails. |
| 8 | VCC+ | Positive supply rail - powers all four amplifiers; decoupling capacitor required at pin. |
| 9 | 3OUT | Amplifier C output - enables three-channel simultaneous buffering or filtering on one IC. |
| 10 | 3IN− | Inverting input of Amplifier C - supports cascaded gain stages or multi-pole filter topologies. |
| 11 | 3IN+ | Non-inverting input of Amplifier C - accepts independent analog input without crosstalk from other channels. |
| 12 | 4IN+ | Non-inverting input of Amplifier D - allows fourth independent signal path in space-constrained designs. |
| 13 | 4IN− | Inverting input of Amplifier D - configurable as comparator or precision integrator input. |
| 14 | 4OUT | Amplifier D output - completes quad functionality; output short-circuit current ±20 mA min. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full 0–5 V swing into 100 kΩ, preserving ADC resolution and minimizing headroom loss. |
| No crossover distortion | Ensures clean small-signal fidelity in audio preamps and precision instrumentation amplifiers. |
| Stable with 1000 pF load | Eliminates need for isolation resistors when driving SAR or sigma-delta ADC inputs. |
| −40°C to 85°C operating range | Validated performance across industrial ambient conditions without derating or thermal management. |
| Low input bias current (1.7 nA typ) | Minimizes voltage error in high-impedance pH, thermopile, or photodiode front-ends. |
| Input common-mode range includes ground | Supports direct connection of unipolar sensors (e.g., RTDs, strain gauges) without level-shifting circuitry. |
Applications
| Portable ECG Front-End | Multi-Sensor Data Logger |
|---|---|
Use Scenario: Amplifies microvolt-level biopotential signals from dry electrodes in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Quad LPV324DR provides simultaneous instrumentation amp gain, high-pass filtering, low-pass filtering, and buffer stages in one SOIC-14 footprint. Use Value: 28 μA total supply current extends coin-cell battery life beyond 3 years; rail-to-rail output ensures full utilization of 12-bit ADC input range. | Use Scenario: Conditioned analog outputs from temperature, humidity, and gas sensors in compact environmental monitoring nodes. IC Role / Device Role / Timing Role: Each amplifier independently biases, gains, filters, and buffers a distinct sensor channel before multiplexed ADC sampling. Use Value: Input common-mode range down to −0.2 V allows direct connection of NTC thermistors and I²C sensor analog outputs without external biasing. |
| Industrial Pressure Transmitter | Low-Power Active Filter Bank |
Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: LPV324DR performs zero-offset correction, span amplification, and 4–20 mA conversion drive in a single-chip solution. Use Value: Stable operation at 2.7 V enables use with low-dropout regulators in energy-harvesting variants; 1000 pF load tolerance simplifies DAC output filtering. | Use Scenario: Multi-order anti-aliasing and reconstruction filters in battery-operated data acquisition modules. IC Role / Device Role / Timing Role: Configured as Sallen-Key or multiple-feedback stages to implement 2nd- to 4th-order low-pass responses. Use Value: No crossover distortion preserves harmonic integrity below 10 kHz; 152 kHz GBW supports cutoff frequencies up to 10 kHz with <1% gain error. |
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 (120 μA vs. 28 μA), wider GBW (1 MHz), same SOIC-14 pinout. | Used where speed > power efficiency - e.g., higher-frequency active filters or faster control loops. | Select LMV324DR only if ≥1 MHz bandwidth is required; LPV324DR saves >75% quiescent power at cost of bandwidth. |
| TLV2464CDR | Lower input offset (2 mV max vs. 11 mV max), higher drive strength (30 mA), but 125 μA supply current. | Suitable for precision sensor interfaces requiring sub-mV accuracy and stronger output drive. | Choose TLV2464CDR when offset voltage or output current dominates over battery life; LPV324DR prioritizes ultra-low power. |
Compared with LMV324DR and TLV2464CDR, LPV324DR delivers the lowest quiescent power in SOIC-14 while maintaining rail-to-rail output and 1000 pF load stability - making it optimal for energy-constrained, low-bandwidth analog signal chains where precision is secondary to runtime.
Availability
LPV324DR is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and battery-powered data loggers requiring stable component supply and long-term manufacturability.
Supply support for LPV324DR 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LPV324DR belongs to TI's LPV3xx family of ultra-low-power op-amps designed specifically for space- and energy-constrained applications such as wearables, IoT endpoints, and portable instrumentation.
FAQ
What is the maximum operating temperature range for the LPV324DR?
The LPV324DR 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 LPV324IDR variant. For designs targeting automotive under-hood or industrial high-temperature environments, LPV324IDR must be selected instead of LPV324DR.
Does the LPV324DR support true single-supply operation with input signals at ground potential?
Yes, the LPV324DR supports true single-supply operation: its input common-mode voltage range extends to −0.2 V below VCC− (i.e., to −0.2 V when VCC− = 0 V), and its output swings within 90 mV of ground. This enables direct interfacing with ground-referenced sensors like thermocouples or bridge circuits without external level-shifting components.
Can the LPV324DR drive a 1000 pF capacitive load without oscillation?
Yes, the LPV324DR is explicitly specified and tested for stability with up to 1000 pF capacitive load, as confirmed in the datasheet's Figure 14 and "Stable With Capacitive Load of 1000 pF" feature bullet. No external series resistor or isolation network is required when driving ADC inputs, long traces, or piezoelectric transducers.
What is the typical supply current of the LPV324DR at 2.7 V and 25°C?
The typical supply current of the LPV324DR at 2.7 V and 25°C is 16 μA (per device, i.e., for all four amplifiers). This value is confirmed in the "2.7-V electrical characteristics" table on page 5 of the SLOS433I datasheet, under ICC for LPV324 (all four amplifiers) at TA = 25°C.
Is the LPV324DR pin-compatible with standard SOIC-14 op-amps like the LM324?
No, the LPV324DR is not pin-compatible with the LM324. While both use SOIC-14 packages, the LPV324DR uses the industry-standard quad op-amp pinout (1OUT, 1IN−, 1IN+, VCC−, 2IN+, 2IN−, 2OUT, VCC+, 3OUT, 3IN−, 3IN+, 4IN+, 4IN−, 4OUT), whereas the LM324 uses a different pin assignment (1OUT, 1IN−, 1IN+, VCC+, 2IN+, 2IN−, 2OUT, GND, 3OUT, 3IN−, 3IN+, 4IN+, 4IN−, 4OUT). Layout reuse requires verification against the LPV324DR pin diagram.
LPV324DR 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
LPV324DR FAQ
1.How can I place an order for LPV324DR through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV324DR 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 LPV324DR reliable?
The price and inventory of LPV324DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV324DR is usually 5 days.
3.What payment methods are accepted for LPV324DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV324DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV324DR?
LPV324DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV324DR 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 LPV324DR?
For technical support, including LPV324DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV324DR requirements.
6.How does Aetrix verify that LPV324DR is sourced from the original manufacturer or authorized distributors?
All LPV324DR 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 LPV324DR meets industry standards.
7.What is the process for return or replacement of LPV324DR?
All LPV324DR units undergo pre-shipment inspection (PSI). If there is an issue with LPV324DR, 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 LPV324DR part is unused and in its original packaging.
Return procedure for LPV324DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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