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Texas Instruments LMV358AIPWR
- Part No.:
- LMV358AIPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV358AIPWR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,557
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Product details
Overview
LMV358AIPWR from Texas Instruments is a dual-channel, low-voltage (2.5 V to 5.5 V), rail-to-rail output operational amplifier optimized for space-constrained, battery-powered systems. It delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 70 µA per channel quiescent current, and stable operation with up to 500 pF capacitive load - enabling precision signal conditioning in smoke detectors and wearable sensor front-ends.
For engineers reviewing the LMV358AIPWR datasheet, LMV358AIPWR pinout, LMV358AIPWR application, or LMV358AIPWR equivalent, key selection criteria include its resistive open-loop output impedance (1.2 kΩ at 1 MHz), –40°C to 125°C extended temperature range, integrated RFI/EMI filtering, and verified low-side current sensing performance with 100 mV shunt compliance.
Technical Context
The LMV358AIPWR implements a P-channel/N-channel parallel input stage to eliminate phase reversal during overdrive while maintaining rail-to-rail input common-mode range (V– – 0.1 V to V+ – 1 V). Its class-AB output stage achieves 20 mV rail-to-rail swing into 10 kΩ loads across full supply and temperature range.
Designed for single-supply operation, it features unity-gain stability without external compensation and exhibits 850 ns overload recovery time. The device's 30 nV/√Hz input voltage noise density and 10 pA input bias current support high-impedance sensor interfaces such as photodiode transimpedance amplifiers operating at 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - enables direct integration into Li-ion, coin-cell, and 3.3 V/5 V embedded systems without level-shifting. |
| Input Offset Voltage | ±1 mV (typ) - ensures ≤100 µV error in 100 mV shunt-based current sensing at room temperature. |
| Unity-Gain Bandwidth | 1 MHz - supports stable closed-loop gain ≥1 configurations for active filters and sensor amplification up to ~100 kHz. |
| Quiescent Current | 70 µA per channel - allows dual-opamp operation on <150 µA total supply current, critical for multi-year battery life. |
| Capacitive Load Drive | 500 pF - eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces. |
| Output Swing | Within 20 mV of rails (RL = 10 kΩ) - maximizes dynamic range for 12-bit+ ADC interfacing in low-voltage systems. |
| Operating Temperature | –40°C to 125°C - qualified for automotive cabin modules, HVAC controllers, and industrial motor drives. |
Pinout & Package
Packaged in TSSOP-8 (PW), the LMV358AIPWR measures 3 mm × 6.4 mm with exposed pad thermal enhancement. Pin numbering follows standard JEDEC TSSOP top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - directly drives ADC inputs, reference buffers, or low-power comparators. |
| 2 | –IN A | Inverting input, channel A - connects to feedback network in inverting configurations or shunt resistor in current sensing. |
| 3 | +IN A | Noninverting input, channel A - accepts sensor signals, reference voltages, or photodiode anodes in transimpedance mode. |
| 4 | V– | Negative supply or ground - shared return path for both amplifiers; must be low-impedance for noise immunity. |
| 5 | +IN B | Noninverting input, channel B - enables dual-sensor conditioning (e.g., differential thermistor pair) without cross-talk. |
| 6 | –IN B | Inverting input, channel B - used for second current sense path or active filter feedback loop. |
| 7 | OUT B | Amplifier B output - independent output for auxiliary functions like power-good monitoring or bias generation. |
| 8 | V+ | Positive supply - decoupling capacitor (0.1 µF ceramic + 10 µF tantalum) required within 5 mm for EMI suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of 3.3 V ADC reference range without level-shifting circuitry or supply headroom loss. |
| Resistive open-loop output impedance | 1.2 kΩ at 1 MHz - simplifies stability with high-capacitance loads (e.g., >100 pF PCB traces or ADC sampling capacitors). |
| Integrated RFI/EMI filter | Rejects >60 dB of 100 MHz–1 GHz interference - critical for motion detectors and barcode scanners in noisy EPOS environments. |
| No phase reversal under overdrive | Prevents latch-up or erroneous output states during transient overvoltage events in smoke detector ionization chamber interfaces. |
| Low input bias current (10 pA) | Minimizes voltage error in high-impedance photodiode or thermocouple circuits where source impedance exceeds 1 MΩ. |
Applications
| Smoke Detectors | Motion Detectors |
|---|---|
Use Scenario: Amplifying weak ionization current (pA–nA range) from radioactive chamber during smoke ingress. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with ultra-low input bias current and no phase reversal during rapid current transients. Use Value: Enables reliable detection of sub-1% obscuration levels while maintaining >10-year battery life via 70 µA/channel quiescent current. | Use Scenario: Conditioning pyroelectric sensor output in PIR-based occupancy sensors for smart lighting and HVAC control. IC Role / Device Role / Timing Role: Dual-channel AC-coupled amplifier: one channel for signal amplification, second for ambient offset cancellation. Use Value: Achieves <50 µV RMS noise floor and 125°C operation for outdoor-rated enclosures without thermal drift compensation. |
| Wearable Devices | Low-Side Current Sensing |
Use Scenario: Biopotential signal acquisition (ECG/EMG) using dry electrodes with high source impedance (>100 kΩ). IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with rail-to-rail input/output and 30 nV/√Hz noise density. Use Value: Delivers >80 dB SNR at 1 kHz with 2.5 V supply, eliminating need for higher-voltage opamps and associated DC-DC converters. | Use Scenario: Monitoring battery discharge current in portable medical devices using 100 mΩ shunt resistor. IC Role / Device Role / Timing Role: Dual-opamp configuration: one as difference amplifier for shunt voltage, second as output buffer/filter. Use Value: Provides ±1% full-scale accuracy over –20°C to 70°C with <100 µV offset drift, meeting IEC 62304 Class C requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | SOIC-8 package; 147.4°C/W junction-to-ambient thermal resistance vs. 205.8°C/W for LMV358AIPWR (TSSOP-8); identical electrical specs. | Better thermal performance in high-density layouts; larger footprint limits use in wearables or compact smoke detectors. | Select LMV358IDR for industrial control boards with ample board area and airflow; choose LMV358AIPWR for volume-sensitive consumer designs. |
| TLV9002IDSGR | Lower 0.65 mV max offset (vs. ±4 mV for LMV358AIPWR); 1.5 MHz GBW; 170 µA/ch quiescent current; same TSSOP-8 footprint. | Higher precision and speed at cost of 2.4× higher supply current - unsuitable for multi-year battery operation. | Choose TLV9002IDSGR only when offset-critical sensor calibration is required and power budget allows ≥340 µA total. |
Compared with LMV358IDR and TLV9002IDSGR, the LMV358AIPWR uniquely balances ultra-low quiescent current (70 µA/ch), robust capacitive-load drive (500 pF), and industry-standard TSSOP-8 packaging - making it optimal for cost-sensitive, space-constrained, and battery-operated applications where precision is secondary to longevity and layout simplicity.
Availability
LMV358AIPWR is available at Aetrix Electronics and suitable for smoke detectors, motion detectors, wearable devices, low-side current sensing, and HVAC control requiring stable component supply across automotive, industrial, and consumer production programs.
Supply support for LMV358AIPWR 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 op amp design heritage and broad automotive qualification expertise.
The LMV3xxA product line targets ultra-low-power, rail-to-rail output signal conditioning in battery-operated and space-constrained systems - emphasizing quiescent current optimization, capacitive-load stability, and extended temperature reliability.
FAQ
What is the maximum capacitive load the LMV358AIPWR can drive without external compensation?
The LMV358AIPWR is characterized to drive up to 500 pF capacitive load while maintaining stability and specified phase margin. This capability stems from its resistive open-loop output impedance (1.2 kΩ), which avoids peaking seen in conventional op amps. For loads exceeding 500 pF, TI recommends adding a small series resistor (10–50 Ω) between the output and capacitive node - a technique validated in the LMV358AIPWR datasheet Figure 5-19 and Figure 5-21.
Does the LMV358AIPWR support true rail-to-rail input common-mode range?
The LMV358AIPWR provides rail-to-rail output swing but not full rail-to-rail input. Its input common-mode range extends from V– – 0.1 V to V+ – 1 V across 2.5 V to 5.5 V supply. This means the positive input cannot accept signals within 1 V of V+, limiting use in certain high-side sensing topologies. However, the inclusion of parallel P/N-channel input stages eliminates phase reversal - a critical advantage over legacy rail-to-rail input op amps.
Can the LMV358AIPWR operate from a single 2.5 V supply in sensor signal conditioning?
Yes, the LMV358AIPWR is fully specified for 2.5 V single-supply operation, including all key parameters: input offset voltage (±1 mV typ), quiescent current (70 µA/ch), and output swing (within 20 mV of rails into 10 kΩ). Its input common-mode range includes the negative rail (V– – 0.1 V), enabling direct connection of grounded sensors like thermistors or bridge elements - confirmed in Section 5.7 Electrical Characteristics and Figure 5-11 of the LMV358AIPWR datasheet.
How does the LMV358AIPWR's EMI rejection compare to standard op amps?
The LMV358AIPWR integrates an on-die RFI and EMI rejection filter, delivering >60 dB attenuation of 100 MHz–1 GHz interference - significantly exceeding typical op amps lacking this feature. This is measured as Electromagnetic Interference Rejection Ratio (EMIRR+) in Figure 5-30 of the datasheet. In practice, this enables reliable operation in EPOS terminals and barcode scanners near switching power supplies or wireless transceivers without additional shielding or ferrite beads.
Is the LMV358AIPWR pin-compatible with other dual op amps in TSSOP-8 packages?
The LMV358AIPWR uses standard TSSOP-8 pinout (per Table 4-2 of SBOS923I), matching industry conventions for dual op amps: pins 1/7 = outputs, 2/3/5/6 = inputs, 4 = V–, 8 = V+. It is functionally and physically compatible with LMV358IDR (SOIC-8), LMV358QDR (AEC-Q100), and TLV2372IDGKR - though electrical differences (e.g., quiescent current, offset) require validation per application. No PCB changes are needed when substituting within the same package variant.
LMV358AIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.7V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 70µA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
LMV358AIPWR FAQ
1.How can I place an order for LMV358AIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV358AIPWR 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 LMV358AIPWR reliable?
The price and inventory of LMV358AIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV358AIPWR is usually 5 days.
3.What payment methods are accepted for LMV358AIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV358AIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV358AIPWR?
LMV358AIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV358AIPWR 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 LMV358AIPWR?
For technical support, including LMV358AIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV358AIPWR requirements.
6.How does Aetrix verify that LMV358AIPWR is sourced from the original manufacturer or authorized distributors?
All LMV358AIPWR 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 LMV358AIPWR meets industry standards.
7.What is the process for return or replacement of LMV358AIPWR?
All LMV358AIPWR units undergo pre-shipment inspection (PSI). If there is an issue with LMV358AIPWR, 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 LMV358AIPWR part is unused and in its original packaging.
Return procedure for LMV358AIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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