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Texas Instruments LPV521MGX/NOPB
- Part No.:
- LPV521MGX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LPV521MGX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:10,350
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Product details
Overview
LPV521MGX/NOPB from Texas Instruments is a single-channel nanopower CMOS operational amplifier optimized for ultra-low-power sensor signal conditioning in battery-powered systems. It delivers 400nA max supply current at 1.8V, 1mV max input offset voltage, 3.5µV/°C max TCVOS, and rail-to-rail input/output operation across 1.6V–5.5V supply range - enabling precision measurement in wireless environmental sensors and grid asset monitors.
For engineers reviewing the LPV521MGX/NOPB datasheet, LPV521MGX/NOPB pinout, LPV521MGX/NOPB application, or LPV521MGX/NOPB equivalent, key selection criteria include its 40fA typical input bias current for high-impedance photodiode interfaces, EMI rejection ratio exceeding 121dB up to 2.4GHz, and guaranteed performance over −40°C to +125°C for industrial field transmitters.
Technical Context
The LPV521MGX/NOPB employs a dual-input-stage architecture (parallel PMOS/NMOS differential pairs) to achieve rail-to-rail input common-mode range extending 0.1V beyond both supply rails, with VOS crossover behavior near V+ − 1.0V requiring careful signal placement in high-accuracy designs. Its VIP50 process enables ultra-low quiescent current without sacrificing DC precision.
Output stage delivers 3mV from rail swing at 3.3V supply (100kΩ load) and 50mV from rail at 5V, supporting maximum dynamic range in low-voltage systems. EMI immunity is hardened via integrated RF rejection circuitry, verified at 400MHz–2.4GHz with EMIRR ≥121dB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 400nA max at VCM = V− + 0.3V; enables >10-year battery life in coin-cell–powered IoT sensors |
| Input Offset Voltage | 1mV max over −40°C to +125°C; ensures ≤0.1% error in 1V full-scale current-sense applications |
| TCVOS | 3.5µV/°C max; limits drift to <0.42mV across 120°C industrial temperature range |
| Input Bias Current | 40fA typical; reduces error to <40µV across 1GΩ source impedance at 25°C |
| Gain Bandwidth Product | 6.2kHz at 5V; supports stable DC-coupled amplification of sub-1kHz sensor outputs |
| EMI Rejection Ratio | 142dB at 2.4GHz; suppresses cellular/WiFi interference in compact PCB layouts |
| Common-Mode Range | V− − 0.1V to V+ + 0.1V; allows direct sensing of signals straddling supply rails |
Pinout & Package
The LPV521MGX/NOPB is supplied in the 5-pin SC70 (DCK) package, measuring 2.0mm × 2.1mm, with exposed pad omitted - suitable for space-constrained portable electronics and field transmitter modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | RRIO-capable stage delivering 3mV from rail at 3.3V; drives 100kΩ loads directly |
| 2 - V− | Negative power supply | Ground reference for single-supply operation; accepts 0V minimum |
| 3 - IN+ | Noninverting input | High-impedance CMOS node; 40fA bias current enables megohm-level sensor interfacing |
| 4 - IN− | Inverting input | Differential partner to IN+; matched input characteristics enable low IOS error |
| 5 - V+ | Positive power supply | Supports 1.6V–5.5V operation; internal regulation maintains stability across voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input & output | Enables full utilization of 1.8V supply headroom in battery-operated smoke detectors |
| 40fA input bias current | Minimizes voltage error in high-Z photodiode and charge-sense circuits used in gas detectors |
| EMI-hardened input stage | Rejects 900MHz/2.4GHz RF noise from nearby radios without external filtering in field transmitters |
| Specified TCVOS & VOS | Guarantees stable offset performance across −40°C to +125°C for electricity meter calibration |
| PowerWise® nanopower design | Delivers 552nW total power at 1.8V - lowest dissipation in TI's precision op-amp portfolio |
Applications
| Wireless Environmental Sensors | Grid Asset Monitoring |
|---|---|
Use Scenario: Battery-powered soil moisture and temperature nodes transmitting via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Front-end signal conditioner for resistive humidity and thermistor bridges. Use Value: 400nA supply current extends CR2032 battery life beyond 7 years; 1mV VOS ensures ±0.5°C accuracy without calibration. | Use Scenario: Clamp-on current sensors mounted on distribution transformers for predictive maintenance. IC Role / Device Role / Timing Role: Low-drift amplifier in shunt-based current measurement front end. Use Value: 3.5µV/°C TCVOS prevents thermal drift-induced false alarms during summer/winter cycling. |
| Electricity Meter | Smoke and Heat Detector |
Use Scenario: Revenue-grade polyphase energy meters with anti-tampering features and 10-year battery backup. IC Role / Device Role / Timing Role: Precision gain stage for Rogowski coil or current transformer outputs. Use Value: Guaranteed 1mV VOS and rail-to-rail input allow direct interface to ±0.5V CT signals without level-shifting. | Use Scenario: UL-listed residential smoke alarms using electrochemical CO and optical smoke chambers. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier for photodiode smoke chamber detection. Use Value: 40fA IBIAS eliminates dark-current error in photodiode circuits, improving sensitivity to low-smoke-density events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV8801DBVR | Higher 600nA supply current; 1.5mV VOS; no specified EMI rejection | Lacks 2.4GHz EMIRR rating; less suitable for RF-dense environments like smart meters | Acceptable where EMI immunity is not required and 200nA extra current is tolerable |
| MAX40007AXT+T | Lower 300nA supply current but only 1.8V–5.5V range; 1.25mV VOS; no TCVOS spec | No guaranteed TCVOS makes it unsuitable for wide-temperature industrial monitoring | Preferred only for room-temperature portable electronics where offset drift is noncritical |
Compared with TLV8801DBVR and MAX40007AXT+T, the LPV521MGX/NOPB uniquely combines guaranteed 3.5µV/°C TCVOS, 142dB 2.4GHz EMIRR, and 40fA IBIAS - making it the only choice for calibrated, RF-immune, high-impedance sensing in extended-temperature industrial deployments.
Availability
LPV521MGX/NOPB is available at Aetrix Electronics and suitable for wireless environmental sensors, grid asset monitoring, and electricity meter applications requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.
Supply support for LPV521MGX/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 amplifiers and low-power signal chains.
The LPV521MGX/NOPB belongs to TI's PowerWise® nanopower op-amp family, engineered specifically for ultra-long-life battery-powered instrumentation, environmental sensing, and industrial field devices demanding sub-1µA quiescent current and guaranteed DC accuracy.
FAQ
What is the maximum supply voltage for LPV521MGX/NOPB?
The LPV521MGX/NOPB supports a maximum supply voltage of 5.5V across the V+ to V− terminals, with absolute maximum ratings specifying −0.3V to +6V on any pin relative to V−. Operation above 5.5V violates recommended conditions and risks reliability degradation, even if within absolute limits.
Does LPV521MGX/NOPB support rail-to-rail input at 1.8V supply?
Yes, the LPV521MGX/NOPB provides true rail-to-rail input operation down to 1.8V supply, with common-mode range extending from V− − 0.1V to V+ + 0.1V. At 1.8V, this yields −0.1V to +1.9V input range, verified across −40°C to +125°C per datasheet Figure 5-9.
What is the output drive capability of LPV521MGX/NOPB at 5V supply?
At 5V supply and 25°C, the LPV521MGX/NOPB delivers ±15mA sourcing/sinking current into loads referenced to V+ or V−, with output swing limited to 50mV from each rail when driving 100kΩ. Output voltage compliance degrades linearly under heavier loads per Figures 5-27 and 5-28.
How does EMI rejection work in LPV521MGX/NOPB?
The LPV521MGX/NOPB integrates proprietary EMI-hardened input circuitry that attenuates RF interference before it modulates the input offset voltage. Its EMIRR is measured at 142dB at 2.4GHz (VRF_PEAK = 100mVP), meaning a 100mV peak RF signal induces only 0.5µV of VOS shift - critical for reliable operation near WiFi/Bluetooth antennas.
Is LPV521MGX/NOPB qualified for automotive applications?
No, the LPV521MGX/NOPB is not AEC-Q200 qualified. While it operates across −40°C to +125°C and meets industrial reliability standards, it lacks automotive-specific qualification testing (e.g., HTOL, ESD, vibration). For automotive use, TI recommends the AEC-Q200–qualified LPV821 series as functional alternatives.
LPV521MGX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.0027V/µs
- Gain Bandwidth Product:
- 6.2 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.04 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 475nA
- Current - Output / Channel:
- 23 mA
- Voltage - Supply Span (Min):
- 1.6 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LPV521MGX/NOPB FAQ
1.How can I place an order for LPV521MGX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV521MGX/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 LPV521MGX/NOPB reliable?
The price and inventory of LPV521MGX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV521MGX/NOPB is usually 5 days.
3.What payment methods are accepted for LPV521MGX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV521MGX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV521MGX/NOPB?
LPV521MGX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV521MGX/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 LPV521MGX/NOPB?
For technical support, including LPV521MGX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV521MGX/NOPB requirements.
6.How does Aetrix verify that LPV521MGX/NOPB is sourced from the original manufacturer or authorized distributors?
All LPV521MGX/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 LPV521MGX/NOPB meets industry standards.
7.What is the process for return or replacement of LPV521MGX/NOPB?
All LPV521MGX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LPV521MGX/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 LPV521MGX/NOPB part is unused and in its original packaging.
Return procedure for LPV521MGX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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