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Texas Instruments LPV358MX
- Part No.:
- LPV358MX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV358MX.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,704
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Product details
Overview
LPV358MX from Texas Instruments is a dual-channel, micropower, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5 V), battery-powered applications. It delivers 152 kHz gain-bandwidth product, 15 µA total supply current (7.5 µA per channel), and rail-to-rail output swing (V+ −3.5 mV / V− +90 mV at 100 kΩ load) in an 8-pin SOIC package. It is used in portable sensor signal conditioning and low-power active filters.
For engineers reviewing the LPV358MX datasheet, LPV358MX pinout, LPV358MX application, or LPV358MX equivalent, this page provides verified electrical parameters, SOIC-8 terminal mapping, real-world use cases in portable instrumentation, and two validated alternative op amps with documented functional trade-offs.
Technical Context
The LPV358MX employs a bipolar input stage and BiCMOS process to achieve low input bias current (2–60 nA over temperature) and high output drive capability (sourcing up to 16 mA, sinking up to 20 mA). Its input common-mode range extends to −0.2 V (below ground) and up to V+ −0.8 V, enabling true single-supply operation with ground-referenced inputs.
It features unity-gain stable operation with capacitive load tolerance up to 200 pF and exhibits no crossover distortion. The device supports industrial temperature range (−40°C to +85°C) and is specified for both 2.7-V and 5-V operation, with PSRR ≥50 dB and CMRR ≥50 dB across its full common-mode range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual - enables compact dual-signal path design without stacking discrete amplifiers |
| Supply Voltage Range | 2.7 V to 5 V - ensures reliable operation across full lithium-ion battery discharge curve (3.0 V–4.2 V) |
| Supply Current (total) | 15–24 µA at 25°C - extends battery life in always-on wearable sensors and IoT endpoints |
| Gain-Bandwidth Product | 152 kHz at 5 V - supports audio-band filtering and DC-coupled sensor amplification up to ~10 kHz |
| Rail-to-Rail Output Swing | V+ −3.5 mV / V− +90 mV @ 100 kΩ - maximizes dynamic range in 3.3-V systems, preserving >99% of available voltage headroom |
| Input Offset Voltage | 1.5–10 mV (max) - suitable for medium-precision signal conditioning where <1% error budget is acceptable |
| Input Common-Mode Range | −0.2 V to V+ −0.8 V - allows direct interfacing with grounded transducers and single-ended ADC drivers |
Pinout & Package
LPV358MX is housed in an 8-pin SOIC (D package), body size 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or feedback network; rail-to-rail capable |
| 2 | IN− A | Inverting input, Channel A - connects to feedback resistor or inverting configuration node |
| 3 | IN+ A | Noninverting input, Channel A - accepts sensor, reference, or signal source; includes ground |
| 4 | V− | Negative supply rail - tied to GND in single-supply mode; must be decoupled with 0.1 µF ceramic |
| 5 | IN+ B | Noninverting input, Channel B - independent input for second signal path or reference buffer |
| 6 | IN− B | Inverting input, Channel B - supports differential or inverting gain stages for second channel |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; shares same supply rails |
| 8 | V+ | Positive supply rail - accepts 2.7–5 V; requires local 0.1 µF bypass capacitor to minimize noise |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 15 µA total supply current enables multi-year battery life in coin-cell–powered devices |
| Rail-to-rail output | Delivers full-scale output swing within 3.5 mV of V+ and 90 mV of V−, critical for low-voltage ADC interfacing |
| Ground-sensing input | Input common-mode range includes −0.2 V, allowing direct connection to 0-V referenced sensors |
| Capacitive load tolerance | Stable with ≤200 pF directly on output - eliminates need for isolation resistors in most sensor buffering |
| Industrial temperature range | Specified from −40°C to +85°C - qualified for deployment in outdoor environmental monitors and industrial handhelds |
Applications
| Portable ECG Front-End | Low-Power Gas Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-operated wearable ECG patches. IC Role / Device Role / Timing Role: Dual-channel LPV358MX serves as first-stage instrumentation amplifier input buffer and baseline correction integrator. Use Value: Micropower consumption (15 µA) and rail-to-rail output enable direct interface with 3.3-V SAR ADC while maintaining >98% signal fidelity at 100 Hz. |
Use Scenario: Conditioning analog output from electrochemical CO sensors in portable air quality meters. IC Role / Device Role / Timing Role: LPV358MX configures as transimpedance amplifier (TIA) for current-mode sensor and low-pass filter for noise suppression. Use Value: Input bias current ≤60 nA minimizes offset error in high-impedance TIA feedback paths; 152-kHz GBW supports 10-Hz cutoff filtering without phase lag. |
| Smart Thermostat Ambient Light Sensing | Wireless Temperature Transmitter |
|
Use Scenario: Converting photodiode current to voltage and scaling output for 12-bit MCU ADC in energy-harvesting thermostats. IC Role / Device Role / Timing Role: LPV358MX operates as precision TIA (Channel A) and reference buffer (Channel B) for ratiometric measurement. Use Value: Rail-to-rail output ensures full 0–3.3 V range utilization; −0.2 V input capability accommodates photodiode reverse bias without level-shifting. |
Use Scenario: Amplifying and filtering RTD bridge outputs in LoRaWAN-enabled temperature nodes powered by primary lithium cells. IC Role / Device Role / Timing Role: LPV358MX implements 3-op-amp instrumentation amplifier topology using both channels plus external resistors. Use Value: Low 2–60 nA input bias current prevents significant error in high-Z bridge arms; 15 µA quiescent current extends 10-year battery life target. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-power, rail-to-rail output op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-I/SN | Higher supply current (250 µA/channel), higher GBW (10 MHz), lower VOS (250 µV typ) | Better for precision, higher-speed applications; unsuitable for multi-year battery life | Select when accuracy and bandwidth outweigh power constraints |
| TLV2462IDR | Lower supply current (550 µA/channel), wider supply range (2.7–6 V), rail-to-rail I/O | Higher power than LPV358MX but better drive strength and noise performance | Choose when driving heavier loads (>10 kΩ) or requiring lower noise (22 nV/√Hz) |
Compared with MCP6022-I/SN and TLV2462IDR, LPV358MX offers the lowest quiescent power (15 µA total) and best fit for ultra-low-power, cost-sensitive portable instrumentation-though it trades off bandwidth and precision for micropower efficiency.
Availability
LPV358MX is available at Aetrix Electronics and suitable for portable medical devices, environmental sensor modules, and battery-powered industrial telemetry requiring stable component supply and long-lifecycle support.
Supply support for LPV358MX 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, power management, and signal chain solutions.
The LPV358MX belongs to TI's LPV3xx-N micropower op amp family, designed specifically for space-constrained, battery-operated systems where low voltage, minimal power draw, and rail-to-rail output performance are essential.
FAQ
What is the maximum operating temperature range for the LPV358MX?
The LPV358MX is specified for continuous operation from −40°C to +85°C ambient temperature. This industrial-grade rating is confirmed in Section 6.3 (Recommended Operating Conditions) of the SNOS413E datasheet and applies to all package variants including the SOIC-8 (D) package used for LPV358MX. Thermal derating is not required within this range.
Does the LPV358MX support true single-supply operation with input signals at ground potential?
Yes, the LPV358MX supports true single-supply operation with input common-mode voltage down to −0.2 V, explicitly enabling direct connection to grounded sensors or transducers. This is documented in Section 6.5 and 6.7 (DC Electrical Characteristics) and reinforced in Section 7.3.7 ("Input Includes Ground") of the SNOS413E datasheet.
What is the typical supply current of the LPV358MX at 5 V and 25°C?
The typical supply current for the LPV358MX is 15 µA at 5 V and 25°C, as stated in the "Features" section and Table 6.7 (DC Electrical Characteristics – 5 V) of the SNOS413E datasheet. Maximum supply current under these conditions is 20 µA, and it rises to 24 µA across the full −40°C to +85°C range.
Can the LPV358MX drive a 100-pF capacitive load without external compensation?
Yes, the LPV358MX is unity-gain stable and can directly drive up to 200 pF without oscillation, as confirmed in Section 7.4.1 ("Capacitive Load Tolerance") of the SNOS413E datasheet. For a 100-pF load, no isolation resistor or external compensation is required in standard unity-gain follower or inverting configurations.
Is the LPV358MX pin-compatible with other dual op amps in SOIC-8 packages like the LM358 or TLV2372?
No, the LPV358MX is not pin-compatible with LM358 or TLV2372. Its pinout follows the industry-standard dual op amp configuration (V+, OUT B, IN− B, IN+ B, IN+ A, IN− A, OUT A, V−), whereas LM358 uses V−, OUT A, IN− A, IN+ A, IN+ B, IN− B, OUT B, V+. Substitution requires PCB layout revision.
LPV358MX 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:
- 152 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 15µA (x2 Channels)
- Current - Output / Channel:
- 16 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:
- 8-SOIC
LPV358MX FAQ
1.How can I place an order for LPV358MX through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV358MX 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 LPV358MX reliable?
The price and inventory of LPV358MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV358MX is usually 5 days.
3.What payment methods are accepted for LPV358MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV358MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV358MX?
LPV358MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV358MX 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 LPV358MX?
For technical support, including LPV358MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV358MX requirements.
6.How does Aetrix verify that LPV358MX is sourced from the original manufacturer or authorized distributors?
All LPV358MX 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 LPV358MX meets industry standards.
7.What is the process for return or replacement of LPV358MX?
All LPV358MX units undergo pre-shipment inspection (PSI). If there is an issue with LPV358MX, 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 LPV358MX part is unused and in its original packaging.
Return procedure for LPV358MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPV358MX Tags
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LM358DT
STMicroelectronics
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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
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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