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Texas Instruments LPV358IDR
- Part No.:
- LPV358IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV358IDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,410
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Product details
Overview
LPV358IDR from Texas Instruments is a dual, low-voltage, rail-to-rail output operational amplifier optimized for battery-powered and space-constrained systems. It delivers 152 kHz gain-bandwidth product, 15 μA supply current per channel at 5 V, −40°C to 125°C operation, and rail-to-rail output swing (VCC+ − 3.5 mV / VCC− + 90 mV) into 100-kΩ load - enabling precision signal conditioning in portable medical sensors and low-power industrial monitoring.
For engineers reviewing the LPV358IDR datasheet, LPV358IDR pinout, LPV358IDR application, or LPV358IDR equivalent, key selection criteria include its guaranteed 125°C extended-temperature rating, input common-mode range extending to VCC− − 0.2 V, stable operation with 1000-pF capacitive loads, and SOIC-8 packaging compatible with legacy board layouts requiring minimal rework.
Technical Context
The LPV358IDR implements a CMOS input stage with rail-to-rail output stage, supporting single-supply operation from 2.7 V to 5 V. Its input common-mode voltage range spans −0.2 V to VCC+ − 0.8 V, enabling ground-sensing capability without level-shifting circuitry.
It achieves 152 kHz unity-gain bandwidth with only 15 μA per amplifier at 5 V, delivering a high speed-power ratio. The device exhibits no crossover distortion and maintains phase margin ≥71° with 22-pF load, ensuring stability in unity-gain buffer and active filter configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - supports direct connection to Li-ion single-cell or regulated 3.3-V rails without external regulators. |
| Gain-Bandwidth Product | 152 kHz - sufficient for DC-coupled sensor amplification and anti-aliasing filters up to ~15 kHz. |
| Supply Current per Channel | 15 μA at 5 V - enables multi-year battery life in always-on IoT endpoint nodes drawing <30 μA total. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV @ 100-kΩ - maximizes dynamic range in 8-bit ADC interfaces with 5-V full-scale. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - allows direct sensing of signals referenced to system ground or negative bias rails. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial motor control, and outdoor infrastructure applications. |
| Capacitive Load Drive | Stable with 1000 pF - eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces. |
Pinout & Package
LPV358IDR is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm × 1.75 mm, RoHS-compliant with green (Pb-free, Sb/Br-free) finish and JEDEC MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream stages directly; rail-to-rail swing enables full utilization of ADC reference voltage. |
| 2 | IN− A | Inverting input of Amplifier A - accepts feedback networks for precise gain setting or differential configurations. |
| 3 | IN+ A | Non-inverting input of Amplifier A - connects to sensor outputs or reference voltages; supports ground-referenced inputs. |
| 4 | VCC− | Negative supply rail - tied to GND in single-supply operation; must be decoupled with 0.1-μF ceramic capacitor. |
| 5 | IN+ B | Non-inverting input of Amplifier B - independent channel enables dual-sensor conditioning or signal splitting. |
| 6 | IN− B | Inverting input of Amplifier B - supports separate feedback paths for each amplifier without crosstalk. |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; usable for simultaneous analog processing tasks. |
| 8 | VCC+ | Positive supply rail - accepts 2.7–5 V; internal ESD protection rated to 2000-V HBM ensures robustness in handling. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates switching artifacts in audio and precision instrumentation paths, preserving signal fidelity at low amplitudes. |
| 1000-pF Capacitive Load Stability | Enables direct interface to SAR ADCs and long trace routing without external compensation components. |
| Input Range Includes Ground | Supports single-supply operation with zero-input referenced transducers (e.g., thermocouples, bridge sensors) without biasing. |
| 125°C Extended Temperature Rating | Validated for continuous operation in high-ambient environments such as motor drive enclosures and automotive engine bays. |
| Low Input Bias Current (1.7–50 nA) | Minimizes voltage error across high-impedance sensor sources like pH electrodes and photodiode transimpedance circuits. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying weak analog signals from wearable ECG electrodes operating on coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel signal conditioner providing gain and filtering before 12-bit ADC sampling. Use Value: 15 μA per channel extends battery life beyond 3 years while rail-to-rail output ensures full ADC code utilization. | Use Scenario: Signal conditioning for 4–20 mA loop-powered temperature transmitters in factory automation panels. IC Role / Device Role / Timing Role: Precision buffer and level shifter interfacing RTD bridges to isolated microcontroller ADCs. Use Value: −0.2 V input common-mode range allows direct connection to grounded sensor elements without external bias networks. |
| Automotive Cabin Sensors | IoT Environmental Nodes |
Use Scenario: Occupancy detection using infrared PIR sensors in vehicle cabin air quality modules. IC Role / Device Role / Timing Role: Low-noise preamplifier and window comparator driver for wake-up logic. Use Value: 125°C qualification ensures reliable operation near HVAC ducts; 146 nV/√Hz input noise preserves signal integrity. | Use Scenario: Battery-operated air quality monitors measuring PM2.5 and CO₂ via electrochemical sensors. IC Role / Device Role / Timing Role: Dual op-amp implementing transimpedance conversion and reference buffering. Use Value: Dual configuration reduces component count; 2.7-V minimum supply enables direct use of partially discharged lithium cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Higher supply current (80 μA/channel at 125°C), wider input common-mode range (to VCC+), but same SOIC-8 footprint. | Preferred where higher speed (1 MHz GBW) or rail-to-rail input is required; less suitable for ultra-low-power designs. | Select LMV358IDR only if >152 kHz bandwidth or input rail-to-rail capability is mandatory; otherwise LPV358IDR offers superior power efficiency. |
| TLV2372IDR | Lower input offset voltage (2.5 mV max vs. 11 mV), lower noise (110 nV/√Hz), but higher quiescent current (22 μA/channel at 5 V). | Better suited for precision DC-coupled measurement chains where offset drift matters more than battery life. | Choose TLV2372IDR when sub-mV offset accuracy is critical; LPV358IDR remains optimal for cost-sensitive, low-power general-purpose use. |
Compared with LMV358IDR and TLV2372IDR, LPV358IDR provides the lowest power envelope for extended-temperature dual op-amp functions - making it the preferred choice for energy-constrained systems where 152 kHz bandwidth and rail-to-rail output meet design requirements without over-specifying performance.
Availability
LPV358IDR is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, and automotive cabin sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LPV358IDR 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 LPV358IDR belongs to TI's LPV3xx family of ultra-low-power rail-to-rail op-amps, designed specifically for cost-sensitive, battery-operated applications demanding extended temperature operation and minimal board space.
FAQ
What is the maximum operating temperature specification for LPV358IDR?
The LPV358IDR is characterized for continuous operation from −40°C to +125°C, as confirmed in the official Texas Instruments datasheet revision March 2005. This extended temperature grade makes it suitable for under-hood automotive, industrial motor control, and outdoor infrastructure deployments where ambient temperatures exceed standard commercial-grade limits. The LPV358IDR maintains specified electrical performance-including input offset voltage, supply current, and gain-bandwidth-across this full range.
Does LPV358IDR support true rail-to-rail input operation?
No, LPV358IDR does not provide rail-to-rail input capability. Its input common-mode voltage range is specified as −0.2 V to VCC+ − 0.8 V, meaning the inputs operate down to 0.2 V below ground but only up to 0.8 V below the positive rail. However, the output is rail-to-rail: it swings to within 3.5 mV of VCC+ and 90 mV above VCC− under 100-kΩ load. For applications requiring full rail-to-rail input, consider TI's TLV2372IDR or similar alternatives.
What package type and dimensions does LPV358IDR use?
LPV358IDR uses the SOIC-8 (D) package: 4.90 mm × 3.91 mm × 1.75 mm body size with 1.27-mm lead pitch. It is RoHS-compliant with green (Pb-free, Sb/Br-free) finish and JEDEC MSL Level-1 moisture sensitivity rating. Pin 1 is located in Quadrant 1 (top-left corner when notch faces upward), matching industry-standard SOIC footprints used in legacy and new designs alike.
Can LPV358IDR drive capacitive loads without oscillation?
Yes, LPV358IDR is explicitly characterized for stability with up to 1000 pF capacitive load, as stated in the datasheet. This capability eliminates the need for series isolation resistors when interfacing with ADC input capacitance (typically 10–30 pF), sample-and-hold circuits, or long PCB traces. Stability is maintained across the full operating temperature and supply voltage range, verified by phase margin ≥71° at 22-pF load and robust frequency response plots in Figures 12–15 of the datasheet.
How does the supply current of LPV358IDR vary with temperature and supply voltage?
At 5 V supply, LPV358IDR draws 15 μA per channel at 25°C, rising to 24 μA per channel at 85°C and 80 μA per channel at 125°C. At 2.7 V, typical supply current is 8 μA per channel at 25°C. This behavior is documented in the "5-V electrical characteristics" table (page 6) and Figure 1 (page 8). Designers must account for this monotonic increase in high-temperature applications to ensure battery lifetime or thermal budget compliance.
LPV358IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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:
- 15µA (x2 Channels)
- Current - Output / Channel:
- 72 mA
- 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:
- 8-SOIC
LPV358IDR FAQ
1.How can I place an order for LPV358IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV358IDR 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 LPV358IDR reliable?
The price and inventory of LPV358IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV358IDR is usually 5 days.
3.What payment methods are accepted for LPV358IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV358IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV358IDR?
LPV358IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV358IDR 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 LPV358IDR?
For technical support, including LPV358IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV358IDR requirements.
6.How does Aetrix verify that LPV358IDR is sourced from the original manufacturer or authorized distributors?
All LPV358IDR 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 LPV358IDR meets industry standards.
7.What is the process for return or replacement of LPV358IDR?
All LPV358IDR units undergo pre-shipment inspection (PSI). If there is an issue with LPV358IDR, 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 LPV358IDR part is unused and in its original packaging.
Return procedure for LPV358IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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