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Texas Instruments LPV321IDBVRE4
- Part No.:
- LPV321IDBVRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LPV321IDBVRE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,869
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Product details
Overview
LPV321IDBVRE4 from Texas Instruments is a single-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5 V), ultra-low-power (9 μA typical supply current at 5 V) applications. It delivers 152 kHz gain-bandwidth product, −40°C to +125°C operating range, 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 front-ends.
For engineers reviewing the LPV321IDBVRE4 datasheet, LPV321IDBVRE4 pinout, LPV321IDBVRE4 application, or LPV321IDBVRE4 equivalent, this device is selected for space-constrained, low-quiescent-current designs requiring ground-sensing input common-mode range (−0.2 V to VCC+ − 0.8 V), stable operation with 1000-pF capacitive loads, and JESD 22-compliant ESD protection (2000-V HBM).
Technical Context
The LPV321IDBVRE4 implements a CMOS input stage with rail-to-rail output stage, enabling full dynamic range utilization in single-supply systems. Its input common-mode voltage range extends 0.2 V below ground, supporting true ground-referenced sensing without level-shifting circuitry.
It achieves stability with capacitive loads up to 1000 pF and exhibits no crossover distortion-critical for low-distortion audio and precision instrumentation. The device is characterized across −40°C to +125°C and specified for 2.7-V and 5-V operation, with input offset voltage ≤11 mV over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - compatible with Li-ion, coin-cell, and 3.3-V logic rails without regulation |
| Quiescent Current per Channel | 9 μA at 5 V - enables multi-year battery life in always-on sensor nodes |
| Gain-Bandwidth Product | 152 kHz - sufficient for anti-aliasing filters, sensor amplification, and slow-control loops |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100-kΩ - maximizes ADC input range and signal fidelity |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - supports direct ground-referenced input signals |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial control, and outdoor IoT |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - reduces need for external protection in compact layouts |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.15 mm body, surface-mount, RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; drives 100-kΩ loads with <100-mV headroom |
| 2 (IN−) | Inverting input | High-impedance CMOS node; supports precision feedback networks and unity-gain stable configurations |
| 3 (VCC−) | Negative supply / ground reference | Connects to system GND in single-supply operation; defines lower output limit |
| 4 (IN+) | Non-inverting input | Accepts signals down to −0.2 V; enables true ground-sensing in sensor interfaces |
| 5 (VCC+) | Positive supply | Accepts 2.7–5 V; supplies internal bias and output stage; determines output voltage range |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates switching artifacts in audio and precision DC-coupled paths |
| Stable with 1000-pF capacitive load | Enables direct driving of ADC input capacitors or long PCB traces without compensation |
| Latch-up performance >100 mA | Meets JESD78 Class II - improves robustness against transient overcurrent events |
| Low input bias current (1.7 nA typ) | Minimizes error in high-impedance sensor interfaces (e.g., pH electrodes, photodiodes) |
| 2.7-V operation capability | Supports direct connection to single-cell LiFePO₄ or alkaline batteries without LDO |
Applications
| Portable Gas Sensor Front-End | Automotive Cabin Temperature Monitor |
|---|---|
Use Scenario: Amplifying low-level output from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier with rail-to-rail output, converting nanoamp-level sensor current to measurable voltage. Use Value: 9 μA quiescent current extends battery life beyond 5 years; −0.2 V input range accommodates sensor zero-bias requirements. |
Use Scenario: Signal conditioning for NTC thermistors in HVAC control modules exposed to under-dash temperatures. IC Role / Device Role / Timing Role: Precision buffer and gain stage operating across −40°C to +125°C ambient. Use Value: Guaranteed 125°C operation eliminates derating; rail-to-rail output ensures full ADC utilization despite varying supply droop. |
| Industrial 4–20 mA Loop Receiver | Wearable Heart Rate Monitor Analog Front-End |
Use Scenario: Converting 4–20 mA loop current to voltage while maintaining low power in field transmitter modules. IC Role / Device Role / Timing Role: Low-drift, low-IQ current-to-voltage converter with ground-referenced input. Use Value: Input common-mode range includes ground, enabling simple shunt-based conversion; 11 mV max VIO limits span error to <0.055% FS. |
Use Scenario: Amplifying weak AC-coupled photoplethysmography (PPG) signals in battery-powered wearables. IC Role / Device Role / Timing Role: First-stage low-noise, low-power amplifier with rail-to-rail output feeding ADC. Use Value: 146 nV/√Hz input noise at 1 kHz preserves PPG SNR; 152 kHz GBW supports adequate bandwidth for pulse shape fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPV321DBVR | Same silicon, −40°C to +85°C temp grade, identical electrical specs and pinout | Not qualified for extended-temperature automotive or industrial environments | Select LPV321DBVR only if operating ambient stays ≤85°C and cost is primary constraint |
| MCP6001T-E/OT | Higher IQ (100 μA), wider GBW (1 MHz), same SOT-23-5 package but different pinout (OUT on Pin 6) | Requires PCB redesign; better for higher-speed filtering but increases battery drain 11× | Choose MCP6001T-E/OT only when bandwidth >1 MHz is required and layout revision is acceptable |
Compared with LPV321DBVR, the LPV321IDBVRE4 adds guaranteed 125°C operation and tighter thermal qualification-critical for engine bay or enclosed industrial enclosures-while maintaining identical footprint and quiescent power. Against MCP6001T-E/OT, it trades bandwidth for 11× lower supply current and proven stability with heavy capacitive loads.
Availability
LPV321IDBVRE4 is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin electronics, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LPV321IDBVRE4 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 design.
The LPV321IDBVRE4 belongs to TI's LPV3xx family of ultra-low-power, rail-to-rail op-amps engineered specifically for battery-operated and space-constrained applications where supply current, input/output voltage range, and temperature resilience are critical.
FAQ
What is the maximum operating temperature specification for the LPV321IDBVRE4?
The LPV321IDBVRE4 is fully characterized and guaranteed to operate from −40°C to +125°C. This extended temperature rating is explicitly defined in the datasheet's "recommended operating conditions" table and validated across all key parameters including input offset voltage, supply current, and output swing-making it suitable for under-hood automotive and industrial control applications where ambient heat exceeds 85°C.
Does the LPV321IDBVRE4 support true rail-to-rail input operation?
The LPV321IDBVRE4 features rail-to-rail *output* swing but not rail-to-rail *input*. Its input common-mode voltage range is specified as −0.2 V to VCC+ − 0.8 V, meaning it accepts signals slightly below ground and up to 0.8 V below the positive rail. This allows ground-referenced inputs but does not support full VCC+ input voltage-unlike some newer zero-drift or RRIO amplifiers.
Can the LPV321IDBVRE4 drive a 1000-pF capacitive load without oscillation?
Yes-the LPV321IDBVRE4 is explicitly designed and tested for stability with capacitive loads up to 1000 pF, as confirmed in Figures 14 and 15 of the datasheet. This capability eliminates the need for isolation resistors or external compensation when interfacing directly with ADC input capacitors, long traces, or piezoelectric sensors, simplifying layout and reducing component count.
What is the typical input offset voltage of the LPV321IDBVRE4 at 25°C and 5 V supply?
The typical input offset voltage of the LPV321IDBVRE4 at TA = 25°C and VCC = 5 V is 7 mV, with a maximum of 11 mV across the full −40°C to +125°C temperature range. This value is measured under standard test conditions (VIC = 2 V, VO = VCC+/2) and reflects the device's precision level for low-gain, DC-coupled applications such as sensor buffering.
Is the LPV321IDBVRE4 pin-compatible with other members of the LPV3xx family?
The LPV321IDBVRE4 (single-channel) uses the SOT-23-5 (DBV) package and shares identical pinout with LPV321DBVR and LPV321IDBVR. However, it is *not* pin-compatible with dual (LPV358) or quad (LPV324) variants, which use 8-pin and 14-pin packages respectively. Always verify package drawing DBV for correct footprint alignment.
LPV321IDBVRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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:
- 9µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LPV321IDBVRE4 FAQ
1.How can I place an order for LPV321IDBVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV321IDBVRE4 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 LPV321IDBVRE4 reliable?
The price and inventory of LPV321IDBVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV321IDBVRE4 is usually 5 days.
3.What payment methods are accepted for LPV321IDBVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV321IDBVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV321IDBVRE4?
LPV321IDBVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV321IDBVRE4 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 LPV321IDBVRE4?
For technical support, including LPV321IDBVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV321IDBVRE4 requirements.
6.How does Aetrix verify that LPV321IDBVRE4 is sourced from the original manufacturer or authorized distributors?
All LPV321IDBVRE4 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 LPV321IDBVRE4 meets industry standards.
7.What is the process for return or replacement of LPV321IDBVRE4?
All LPV321IDBVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LPV321IDBVRE4, 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 LPV321IDBVRE4 part is unused and in its original packaging.
Return procedure for LPV321IDBVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV321IDBVRE4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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