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Texas Instruments LPV358MX/NOPB
- Part No.:
- LPV358MX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LPV358MX/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,693
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Product details
Overview
LPV358MX/NOPB 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), rail-to-rail output swing (V+ −3.5 mV / V− +90 mV at 100 kΩ), and operates across −40°C to +85°C. It is used in portable sensor signal conditioning and low-power active filters.
For engineers reviewing the LPV358MX/NOPB datasheet, LPV358MX/NOPB pinout, LPV358MX/NOPB application, or LPV358MX/NOPB equivalent, key selection criteria include micropower consumption, single-supply rail-to-rail operation, input common-mode range extending to ground, and SOIC-8/VSSOP-8 package compatibility for space-constrained designs.
Technical Context
The LPV358MX/NOPB implements a bipolar-input, rail-to-rail output architecture built on TI's submicron BiCMOS process, enabling low noise (146 nV/√Hz at 1 kHz) and high output drive (±16 mA short-circuit current) while maintaining micropower operation. Its input stage supports common-mode voltage from −0.2 V to V+ −0.8 V, allowing direct ground-referenced sensing in single-supply systems.
It achieves stable unity-gain operation with up to 200 pF capacitive load without external compensation and exhibits 87° phase margin at 5 V. The device supports both single-supply (2.7–5 V) and split-supply configurations, with DC precision characterized over temperature including input offset voltage (max 10 mV) and CMRR (min 50 dB).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - Enables full operation across entire lithium coin-cell and single Li-ion battery discharge curves. |
| Supply Current (total) | 15 µA typ. at 25°C - Delivers dual-channel amplification with <16 µA total quiescent draw, maximizing battery life. |
| Gain-Bandwidth Product | 152 kHz - Supports low-frequency signal processing (e.g., sensor outputs, audio preamps) with stable unity-gain response. |
| Rail-to-Rail Output Swing | V+ −3.5 mV / V− +90 mV at 100 kΩ - Maximizes dynamic range in low-voltage systems, preserving >99% of available output headroom. |
| Input Common-Mode Range | −0.2 V to V+ −0.8 V - Allows direct interface to ground-referenced transducers and resistive sensors without level-shifting. |
| Input Offset Voltage | 10 mV max over −40°C to +85°C - Ensures predictable DC accuracy in temperature-varying embedded environments. |
| Slew Rate | 0.1 V/µs - Sufficient for <1 kHz small-signal step response without distortion in portable instrumentation. |
Pinout & Package
LPV358MX/NOPB is packaged in an 8-pin SOIC (D) with nominal body size 4.90 mm × 3.91 mm, compatible with standard surface-mount assembly and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - Drives downstream circuitry with rail-to-rail swing and ±16 mA short-circuit capability. |
| 2 | IN− A | Inverting input, Channel A - Accepts feedback or inverted signal path; matched bias current minimizes offset error. |
| 3 | IN+ A | Noninverting input, Channel A - Interfaces directly to ground-referenced sources; common-mode range includes V−. |
| 4 | V− | Negative supply terminal - Serves as reference for single-supply (0 V) or dual-supply (e.g., −2.5 V) operation. |
| 5 | IN+ B | Noninverting input, Channel B - Electrically isolated from Channel A; enables independent dual-signal processing. |
| 6 | IN− B | Inverting input, Channel B - Supports differential or inverting configurations with same DC precision as Channel A. |
| 7 | OUT B | Amplifier B output - Fully independent output stage; no crosstalk degradation below 60 dB up to 100 kHz. |
| 8 | V+ | Positive supply terminal - Accepts 2.7–5 V; internal regulation ensures stable performance across supply variation. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower operation | 15 µA total supply current enables multi-year battery life in always-on IoT sensor nodes. |
| Rail-to-rail output | Delivers full-scale output swing within 3.5 mV of V+ and 90 mV of V−, critical for maximizing ADC input range in 3.3 V systems. |
| Ground-sensing input | Input common-mode extends to −0.2 V, permitting direct connection to 0 V-referenced thermistors, strain gauges, and current shunts. |
| Capacitive load tolerance | Stable with up to 200 pF at unity gain - eliminates need for isolation resistors in driving LCD bias or ADC sample capacitors. |
| Bipolar input stage | Provides 1.7 nA typical input bias current and superior noise performance (146 nV/√Hz) vs. CMOS alternatives at same power. |
Applications
| Portable Medical Sensors | Low-Power Active Filters |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or pulse oximeter signals in wearable patches powered by CR2032 batteries. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: Channel A buffers electrode inputs; Channel B configures as difference amplifier for common-mode rejection. Use Value: 15 µA total supply current extends battery life beyond 12 months; rail-to-rail output fully utilizes 12-bit ADC reference range. |
Use Scenario: Implementing 2nd-order low-pass filtering before analog-to-digital conversion in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Dual op-amp topology: one section forms Sallen-Key filter; second provides gain/buffering with minimal added noise. Use Value: 152 kHz GBWP ensures flat frequency response up to 1 kHz cutoff; low input bias current prevents RC time constant drift. |
| Industrial Sensor Transmitters | Smart Home Motion Detectors |
Use Scenario: Conditioning 4–20 mA loop sensor outputs in wireless field transmitters operating on primary lithium cells. IC Role / Device Role / Timing Role: Precision I/V conversion and level-shifting stage: Channel A converts current to voltage; Channel B offsets/attenuates for MCU input scaling. Use Value: Input offset voltage ≤10 mV ensures <0.5% full-scale error over temperature; −40°C to +85°C rating supports outdoor deployment. |
Use Scenario: Signal amplification and threshold detection for PIR sensor outputs in battery-powered occupancy sensors. IC Role / Device Role / Timing Role: Dual comparator-like function: Channel A amplifies weak PIR signal; Channel B implements hysteresis-latched output via feedback. Use Value: 0.1 V/µs slew rate handles fast PIR pulses without ringing; rail-to-rail output directly drives GPIO or low-threshold MOSFET gate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-power, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-I/SN | Higher supply current (250 µA/channel), higher GBWP (10 MHz), CMOS input (1 pA bias), no ground-sensing input (VCM = V− +0.3 V min). | Better for high-speed, high-impedance sources; unsuitable for direct ground-referenced sensors. | Select MCP6022-I/SN only when bandwidth >100 kHz or input impedance >1 GΩ is required; avoid where ground-sensing or <20 µA supply is mandatory. |
| TLV2462IDR | Higher supply current (550 µA/channel), higher GBWP (6.4 MHz), rail-to-rail input/output, wider temp range (−40°C to +125°C). | Targeted at automotive/industrial control; excessive power for battery longevity-critical designs. | Choose TLV2462IDR when extended temperature or faster settling is needed; LPV358MX/NOPB remains optimal for ultra-low-power portable use. |
Compared with MCP6022-I/SN and TLV2462IDR, LPV358MX/NOPB uniquely balances micropower (15 µA), ground-sensing input, and rail-to-rail output in a cost-effective SOIC-8 package-making it the only viable option for multi-year battery life in space-constrained, single-supply sensor front-ends.
Availability
LPV358MX/NOPB is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, smart home motion detectors, and low-power active filters requiring stable component supply across long production lifecycles.
Supply support for LPV358MX/NOPB 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 op amps and low-power signal chain solutions.
LPV358MX/NOPB belongs to TI's LPV3xx-N micropower op amp family, designed specifically for cost-sensitive, battery-powered applications demanding rail-to-rail output, ground-sensing input, and ultra-low quiescent current in compact packages.
FAQ
What is the maximum capacitive load LPV358MX/NOPB can drive without oscillation?
The LPV358MX/NOPB is specified to remain stable with up to 200 pF capacitive load in unity-gain configuration, as confirmed in the datasheet's Device Functional Modes section. This eliminates the need for external isolation resistors when driving ADC sample capacitors or LCD bias networks. For loads exceeding 200 pF, TI recommends using the resistive-isolation circuit shown in Figure 37 of the LPV358MX/NOPB datasheet to preserve phase margin.
Does LPV358MX/NOPB support true single-supply operation with input signals at ground?
Yes, LPV358MX/NOPB supports true single-supply operation with input common-mode voltage down to −0.2 V, enabling direct interface to ground-referenced sensors such as thermistors or current shunts. Its input stage is designed to operate with VCM as low as V− −0.2 V, and the datasheet explicitly states "input common-mode voltage range includes ground" - a key differentiator from many competing micropower op amps.
What is the typical supply current of LPV358MX/NOPB at 2.7 V and 25°C?
The typical supply current of LPV358MX/NOPB is 15 µA at 2.7 V and 25°C, as specified in Section 6.5 (DC Electrical Characteristics – 2.7 V) of the official datasheet. This value represents the total current for both amplifiers combined. At 5 V and 25°C, the typical supply current remains 15 µA, confirming consistent micropower behavior across the full 2.7–5 V operating range.
Can LPV358MX/NOPB be used in a dual-supply configuration?
Yes, LPV358MX/NOPB is fully functional in dual-supply mode, supporting ±1.35 V to ±2.5 V operation (equivalent to 2.7 V to 5 V total supply). Section 7.4.1 of the datasheet confirms dual-supply capability, and all AC/DC specifications - including input offset voltage, CMRR, and PSRR - are characterized under both single- and dual-supply conditions. No design changes are required to switch between configurations.
What is the gain-bandwidth product of LPV358MX/NOPB and how is it measured?
The gain-bandwidth product of LPV358MX/NOPB is 152 kHz, measured at 5 V supply with CL = 22 pF per amplifier, as documented in Section 6.8 (AC Electrical Characteristics – 5 V) of the datasheet. This parameter is derived from open-loop AC response and defines the frequency at which closed-loop gain drops to unity - critical for determining usable bandwidth in non-inverting or inverting amplifier configurations.
LPV358MX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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/NOPB FAQ
1.How can I place an order for LPV358MX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV358MX/NOPB 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/NOPB reliable?
The price and inventory of LPV358MX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV358MX/NOPB is usually 5 days.
3.What payment methods are accepted for LPV358MX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV358MX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV358MX/NOPB?
LPV358MX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV358MX/NOPB 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/NOPB?
For technical support, including LPV358MX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV358MX/NOPB requirements.
6.How does Aetrix verify that LPV358MX/NOPB is sourced from the original manufacturer or authorized distributors?
All LPV358MX/NOPB 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/NOPB meets industry standards.
7.What is the process for return or replacement of LPV358MX/NOPB?
All LPV358MX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LPV358MX/NOPB, 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/NOPB part is unused and in its original packaging.
Return procedure for LPV358MX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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