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Texas Instruments LPV358IDG4
- Part No.:
- LPV358IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV358IDG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,623
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Product details
Overview
LPV358IDG4 from Texas Instruments is a dual, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5 V), low-power (15 μA per channel at 5 V) applications. It delivers 152 kHz gain-bandwidth product, input common-mode range extending to −0.2 V below VCC− and up to VCC+ − 0.8 V, 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 interfaces and portable instrumentation.
For engineers reviewing the LPV358IDG4 datasheet, LPV358IDG4 pinout, LPV358IDG4 application, or LPV358IDG4 equivalent, this device is selected for ultra-low quiescent current, wide temperature operation (−40°C to 125°C), stable performance with 1000-pF capacitive loads, and compatibility with single-supply systems requiring ground-sensing inputs and near-rail outputs.
Technical Context
The LPV358IDG4 implements a CMOS input stage with rail-to-rail output stage, supporting true single-supply operation down to 2.7 V while maintaining low input bias current (2 nA typical at 25°C) and no crossover distortion. Its internal biasing enables full input common-mode range including ground and output swing to within millivolts of both supply rails.
It achieves stability with capacitive loads up to 1000 pF without external compensation and exhibits 74° phase margin at 5 V with 100-kΩ load and 22-pF capacitive load - confirming robust small-signal transient response and suitability for driving ADC input buffers and active filter stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - supports direct integration into 3.3-V and 5-V microcontroller-based systems without level-shifting. |
| Quiescent Current (per channel) | 15 μA at 5 V - enables multi-channel amplification in energy-constrained designs such as wearable health monitors. |
| Gain-Bandwidth Product | 237 kHz at 5 V - sufficient for DC-coupled sensor signal conditioning and low-frequency active filtering (e.g., anti-aliasing up to ~20 kHz). |
| Input Offset Voltage | 7 mV typical (25°C), 11 mV max (−40°C to 125°C) - defines baseline DC error in precision DC gain stages and offset-sensitive transducer interfaces. |
| Rail-to-Rail Output Swing | VCC+ − 3.5 mV / VCC− + 90 mV at 100-kΩ - maximizes dynamic range in single-supply data acquisition front-ends. |
| Input Common-Mode Range | −0.2 V to VCC+ − 0.8 V - allows direct sensing of signals referenced to ground or negative offsets in low-voltage systems. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - ensures robustness during board handling and end-equipment assembly. |
Pinout & Package
LPV358IDG4 is housed in an 8-pin SOIC (D) package with standard industry footprint (5.3 mm × 6.2 mm, 1.75 mm height). The package is RoHS-compliant, green (no Sb/Br), and moisture sensitivity level (MSL) 1 rated for unlimited floor life at ≤30°C/60% RH.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream circuitry; rail-to-rail capable with 17 mA sourcing / 72 mA sinking capability at 5 V. |
| 2 | IN− A | Inverting input of Amplifier A - high-impedance CMOS node (2 nA typical bias current); accepts signals from −0.2 V to VCC+ − 0.8 V. |
| 3 | IN+ A | Non-inverting input of Amplifier A - identical voltage range and impedance as IN− A; used for unity-gain buffers or non-inverting configurations. |
| 4 | VCC− | Negative supply pin - typically connected to GND in single-supply operation; serves as reference for output swing and input common-mode range. |
| 5 | IN+ B | Non-inverting input of Amplifier B - electrically isolated from Channel A; enables independent dual-channel signal paths on one die. |
| 6 | IN− B | Inverting input of Amplifier B - matches Channel A specifications; supports differential or single-ended configurations per channel. |
| 7 | OUT B | Amplifier B output - fully independent output stage; same drive strength and rail-to-rail behavior as OUT A. |
| 8 | VCC+ | Positive supply pin - accepts 2.7 V to 5 V; supplies both amplifiers; thermal resistance θJA = 97°C/W in SOIC-8 package. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 15 μA per channel at 5 V - reduces system-level power budget by >50% vs. standard LMV358 (150 μA), critical for coin-cell or energy-harvesting systems. |
| Rail-to-rail output stage | Swings to within 3.5 mV of VCC+ and 90 mV of VCC− at 100-kΩ load - preserves >98% of available voltage headroom for analog-to-digital conversion. |
| Ground-sensing input range | Common-mode extends to −0.2 V below VCC− - enables direct interfacing with 0-V-referenced sensors (e.g., thermistors, bridge transducers) without level-shifting. |
| Stable with heavy capacitive loads | Remains stable driving up to 1000 pF - eliminates need for isolation resistors when buffering SAR ADC inputs or long PCB traces. |
| Extended temperature grade | Specified from −40°C to +125°C - qualified for under-hood automotive, industrial motor control, and outdoor IoT edge nodes. |
Applications
| Portable ECG Front-End | Industrial 4–20 mA Loop Receiver |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable ECG monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end: Channel A configures as high-gain non-inverting amplifier for signal gain; Channel B configures as reference buffer for right-leg drive (RLD) circuit. Use Value: 15 μA per channel minimizes battery drain over weeks of continuous monitoring; rail-to-rail output ensures full utilization of 12-bit ADC input range despite 3.3-V supply. |
Use Scenario: Converting 4–20 mA loop current to 0–5 V analog voltage for PLC analog input modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Precision I-to-V converter (Channel A) and output buffer (Channel B) - first stage converts loop current across 250-Ω shunt; second stage isolates and drives ADC input. Use Value: −40°C to 125°C rating ensures reliability in uncooled control cabinets; 11 mV max input offset limits span error to <0.5% of full scale at 20 mA. |
| Low-Power Gas Sensor Signal Chain | Smart Thermostat Ambient Sensing |
|
Use Scenario: Conditioning output from electrochemical CO sensors with low output impedance and sub-mV signal levels in battery-operated air quality detectors. IC Role / Device Role / Timing Role: Low-noise preamplifier (Channel A) and active low-pass filter (Channel B) - first stage provides 100× gain; second stage implements 10-Hz cutoff to suppress RF interference. Use Value: 146 nV/√Hz input voltage noise at 1 kHz preserves signal integrity; 237 kHz GBW supports clean filter roll-off without phase lag in feedback path. |
Use Scenario: Amplifying output from NTC thermistors and humidity sensors in Wi-Fi–enabled thermostats powered by AA batteries. IC Role / Device Role / Timing Role: Dual-sensor interface: Channel A conditions thermistor voltage divider; Channel B buffers capacitive humidity sensor output for ADC sampling. Use Value: Single 3.3-V supply simplifies power architecture; rail-to-rail input/output eliminates need for external bias networks, reducing BOM count and PCB area. |
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 quiescent current (150 μA per channel), wider input offset (7 mV typical → 2.5 mV typical), same SOIC-8 package and pinout. | Not suitable for multi-year battery life; better for cost-sensitive industrial controls where power is not constrained. | Select LMV358IDR only when higher speed (1 MHz GBW) or lower offset is required and supply current >10× higher is acceptable. |
| TLV2372IDR | Lower supply current (20 μA per channel), higher GBW (2.4 MHz), but narrower input common-mode range (VCC− to VCC+ − 1.5 V) and no guaranteed 125°C operation. | Preferred for higher-speed sensor interfaces (e.g., ultrasonic distance sensing) but unsuitable for ground-referenced inputs or extended-temperature deployments. | Choose TLV2372IDR only when bandwidth >200 kHz is mandatory and ambient temperature remains ≤85°C. |
Compared with LMV358IDR and TLV2372IDR, LPV358IDG4 uniquely balances ultra-low power (15 μA), rail-to-rail input/output, −40°C to 125°C qualification, and SOIC-8 compatibility - making it the optimal choice for long-life, ground-sensing, high-reliability analog front-ends.
Availability
LPV358IDG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial process transmitters, and smart building environmental sensors requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LPV358IDG4 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 LPV3xx family was designed specifically for cost-sensitive, battery-powered applications demanding rail-to-rail operation, minimal supply current, and extended temperature resilience - targeting portable instrumentation, sensor modules, and industrial IoT endpoints.
FAQ
What is the maximum operating temperature specification for LPV358IDG4?
The LPV358IDG4 is characterized and specified for continuous operation from −40°C to +125°C. This extended temperature grade is confirmed in the official Texas Instruments datasheet (SLOS433I, March 2005 revision) and applies across the full 2.7-V to 5-V supply range. The "I" suffix in LPV358IDG4 explicitly denotes the 125°C-rated variant, distinguishing it from the standard −40°C to 85°C LPV358DG4.
Does LPV358IDG4 support true rail-to-rail input operation?
LPV358IDG4 supports rail-to-rail *output* swing but has a limited rail-to-rail *input* common-mode range: −0.2 V to VCC+ − 0.8 V. This means the input can accept signals down to 0.2 V below ground (enabling ground-referenced sensing) but cannot reach within 0.8 V of VCC+. It does not support full VCC−-to-VCC+ input voltage range - unlike some newer TI amplifiers such as the TLV9002.
Can LPV358IDG4 drive a 1000-pF capacitive load without oscillation?
Yes - the LPV358IDG4 is explicitly characterized for stability with capacitive loads up to 1000 pF, as stated in the datasheet's "Features" section and verified in Figure 14 (frequency response vs. CL). No external series resistor or isolation network is required when driving ADC inputs, long traces, or piezoelectric sensors with high capacitance.
What is the typical input bias current of LPV358IDG4 at room temperature?
The typical input bias current of LPV358IDG4 is 2 nA at 25°C and 5 V supply, as specified in the "5-V electrical characteristics" table (page 6 of SLOS433I). This value increases to 65 nA maximum over the full −40°C to 125°C operating range, reflecting its CMOS input architecture optimized for low power rather than ultra-high impedance.
Is LPV358IDG4 pin-compatible with other dual op-amps in SOIC-8 packages?
LPV358IDG4 uses the industry-standard SOIC-8 pinout (pin 1 = OUT A, pin 2 = IN− A, pin 3 = IN+ A, pin 4 = VCC−, pin 5 = IN+ B, pin 6 = IN− B, pin 7 = OUT B, pin 8 = VCC+), matching LMV358, TLV2372, and MCP6022. However, functional compatibility depends on supply voltage, quiescent current, and input/output range - direct replacement requires verification of these parameters in the target application.
LPV358IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
LPV358IDG4 FAQ
1.How can I place an order for LPV358IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV358IDG4 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 LPV358IDG4 reliable?
The price and inventory of LPV358IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV358IDG4 is usually 5 days.
3.What payment methods are accepted for LPV358IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV358IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV358IDG4?
LPV358IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV358IDG4 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 LPV358IDG4?
For technical support, including LPV358IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV358IDG4 requirements.
6.How does Aetrix verify that LPV358IDG4 is sourced from the original manufacturer or authorized distributors?
All LPV358IDG4 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 LPV358IDG4 meets industry standards.
7.What is the process for return or replacement of LPV358IDG4?
All LPV358IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with LPV358IDG4, 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 LPV358IDG4 part is unused and in its original packaging.
Return procedure for LPV358IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV358IDG4 Tags
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LM358DT
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