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Texas Instruments LPV511MGX/NOPB
- Part No.:
- LPV511MGX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LPV511MGX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,821
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Product details
Overview
LPV511MGX/NOPB from Texas Instruments is a micropower rail-to-rail input and output operational amplifier designed for ultra-low-power signal conditioning in battery- and energy-harvesting systems. It operates from 2.7 V to 12 V, draws only 880 nA supply current at 3 V, delivers 27 kHz gain bandwidth, and swings within 100 mV of both rails - enabling high dynamic range in 3 V sensor front-ends and portable instrumentation.
For engineers reviewing the LPV511MGX/NOPB datasheet, LPV511MGX/NOPB pinout, LPV511MGX/NOPB application, or LPV511MGX/NOPB equivalent, key selection criteria include its verified 880 nA quiescent current, rail-to-rail I/O performance across –40°C to 85°C, 27 kHz GBW at 50 pF load, ±0.2 mV typical input offset voltage, and SC70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The LPV511MGX/NOPB uses a dual-differential-input architecture (parallel PNP/NPN pairs) to achieve true rail-to-rail input operation, with automatic transition logic between input stages across the full common-mode range. Its internal unity-gain compensation ensures stability with 1 MΩ load and up to 50 pF capacitive load without external compensation.
Output stage design enables 100 mV rail-to-rail swing at 3 V supply while sourcing/sinking up to 650 µA (sourcing) and 1.35 mA (sinking) under defined conditions. Input bias current varies with common-mode voltage - from –1000 pA at low VCM to +800 pA near V+ - requiring careful signal placement to avoid the VOS crossover region near V+ – 1 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - supports single-cell Li-ion, 3.3 V logic, and 12 V industrial rails without level-shifting. |
| Supply Current | 880 nA at 3 V - enables >10-year battery life in always-on sensor nodes drawing <1 µA total system current. |
| Gain Bandwidth Product | 27 kHz at CL = 50 pF, RL = 1 MΩ - sufficient for DC–20 kHz sensor amplification with stable unity-gain configuration. |
| Input Offset Voltage | ±0.2 mV (typ) at 25°C - allows accurate amplification of sub-mV signals (e.g., thermistor or bridge outputs) without trimming. |
| Rail-to-Rail Output Swing | Within 100 mV of V+ and V− at 3 V - maximizes usable ADC input range in low-voltage systems. |
| Input Common-Mode Range | –0.1 V to V+ + 0.1 V - supports direct high-side and ground-sensing configurations in battery monitoring. |
| Input-Referred Voltage Noise | 320 nV/√Hz at 100 Hz - suitable for precision DC-coupled applications where 1/f noise dominates. |
Pinout & Package
The LPV511MGX/NOPB is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for area-constrained portable electronics and wearable sensors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Amplifier output | Delivers rail-to-rail voltage swing; requires isolation resistor (>10 Ω) when driving >100 pF capacitive loads to maintain phase margin. |
| 2 - V− | Negative supply | Ground reference for single-supply operation; must be connected directly to PCB ground plane for noise immunity. |
| 3 - VIN+ | Noninverting input | High-impedance node (IB ≈ –1000 pA at low VCM); sensitive to layout-induced leakage in high-impedance sensor interfaces. |
| 4 - VIN− | Inverting input | Accepts feedback network; differential input voltage limited to ±2.1 V - not suitable for comparator use. |
| 5 - V+ | Positive supply | Supports up to 12 V; supplies internal bias circuitry - decoupling capacitor (100 nF) required within 2 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Enables direct sensing of signals from ground to V+ without external level shifters - critical for high-side current monitoring. |
| Ultra-low 880 nA supply current | Reduces self-heating and extends battery life in always-on IoT endpoints; validated across –40°C to 85°C. |
| 27 kHz unity-gain bandwidth | Provides adequate speed for DC–20 kHz sensor signal chains while maintaining stability with minimal external components. |
| 100 mV rail-to-rail output swing at 3 V | Preserves >93% of full-scale ADC range in 3 V systems - avoids signal clipping in low-voltage data acquisition. |
| Input offset voltage drift ≤15 µV/°C | Ensures stable DC accuracy over temperature in thermostats and environmental sensors without recalibration. |
Applications
| Battery Current Monitoring | Remote Temperature Sensing |
|---|---|
Use Scenario: High-side current sensing in lithium coin-cell–powered asset trackers using a 10 mΩ shunt resistor. IC Role / Device Role / Timing Role: Precision DC amplifier conditioning microvolt-level shunt voltage with rail-to-rail input to capture full battery discharge curve. Use Value: 880 nA quiescent current minimizes measurement burden on 220 mAh battery; 100 mV output headroom preserves resolution for 12-bit ADC digitization. | Use Scenario: Amplifying output of a 10 kΩ NTC thermistor in a solar-powered weather station node. IC Role / Device Role / Timing Role: Low-drift, low-power buffer and gain stage operating from harvested energy, interfacing to SAR ADC. Use Value: ±0.2 mV input offset and ≤15 µV/°C drift enable ±0.5°C accuracy over –20°C to 60°C without calibration; SC70 footprint saves board space. |
| Micropower Thermostat Control | Portable Instrumentation Front-End |
Use Scenario: Signal conditioning for a bimetallic switch replacement in a battery-operated HVAC controller. IC Role / Device Role / Timing Role: Rail-to-rail input op amp comparing thermistor voltage against reference in a hysteresis comparator topology. Use Value: Input common-mode range extending to V+ allows direct connection to ratiometric thermistor divider; 27 kHz GBW ensures fast response to temperature transients. | Use Scenario: Front-end amplifier for a handheld multimeter measuring µA-level leakage currents. IC Role / Device Role / Timing Role: Ultra-low IB (–1000 pA at low VCM) minimizes error in high-impedance current-to-voltage conversion. Use Value: Input bias current polarity reversal across VCM is avoided by biasing VIN+ at mid-supply - ensuring stable 0.1% measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV8512IDR | Higher supply current (360 nA vs 880 nA), lower GBW (12.5 kHz), same SC70-5 package | Optimized for lower-noise (150 nV/√Hz) but less suitable for multi-year battery life | Select TLV8512IDR only if noise performance outweighs quiescent current requirements. |
| MAX4477ASA+ | Higher supply current (1.1 µA), wider supply range (2.7 V–36 V), SO-8 package | Supports higher-voltage industrial sensors but requires PCB redesign due to different footprint | Choose MAX4477ASA+ only when >12 V operation or higher output drive is mandatory. |
Compared with TLV8512IDR and MAX4477ASA+, the LPV511MGX/NOPB uniquely balances sub-µA quiescent current, rail-to-rail I/O, and SC70-5 packaging - making it the only option among the three qualified for 10+ year battery-powered sensor nodes with strict PCB area constraints.
Availability
LPV511MGX/NOPB is available at Aetrix Electronics and suitable for battery-powered systems, remote sensor amplifiers, and micropower thermostats requiring stable component supply across long production lifecycles.
Supply support for LPV511MGX/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 company specializing in analog and embedded processing technologies, with leadership in low-power design and precision signal chain solutions.
The LPV511MGX/NOPB belongs to TI's micropower operational amplifier product line, engineered specifically for ultra-long-life battery and energy-harvesting applications where nanowatt-level quiescent current and rail-to-rail functionality are non-negotiable.
FAQ
What is the maximum capacitive load the LPV511MGX/NOPB can drive without instability?
The LPV511MGX/NOPB is unity-gain stable with up to 50 pF capacitive load when driving a 1 MΩ resistive load. For loads exceeding 100 pF, a series isolation resistor (≥10 Ω) must be placed between VOUT and the capacitor to restore phase margin. This is documented in Figure 27 of the datasheet and confirmed across all supply voltages (3 V, 5 V, 12 V).
Does the LPV511MGX/NOPB support true rail-to-rail input at 12 V supply?
Yes - the LPV511MGX/NOPB guarantees rail-to-rail input operation from –0.1 V to 12.1 V at 25°C and from 0 V to 12 V across –40°C to 85°C, as specified in the CMVR parameter under Electrical Characteristics: 12 V. This enables direct high-side sensing in 12 V automotive or industrial subsystems.
Can the LPV511MGX/NOPB be used as a comparator?
No - the LPV511MGX/NOPB is not designed or characterized for comparator operation. Its absolute maximum differential input voltage is ±2.1 V, and internal input stage architecture (dual PNP/NPN pairs with transition logic) causes unpredictable behavior and potential damage when driven into saturation. Use dedicated comparators like TLV3691 for such functions.
What is the output short-circuit current capability of the LPV511MGX/NOPB?
At 12 V supply, the LPV511MGX/NOPB sinks up to 1.35 mA and sources up to 650 µA under short-circuit conditions (per Absolute Maximum Ratings Note 3). At 3 V, sinking capability drops to 225 µA and sourcing to –225 µA. Continuous short-circuit operation is only safe below 6 V supply; above that, duration must be limited to 1.5 ms.
Is the LPV511MGX/NOPB pin-compatible with other SC70-5 op amps like the LPV821?
No - the LPV511MGX/NOPB has standard op amp pinout (V+, VIN−, VIN+, V−, VOUT), but the LPV821 uses a different pin assignment (V+, VOUT, VIN−, VIN+, V−). Swapping them without PCB modification will cause functional failure. Always verify pin functions using the "Pin Configuration and Functions" section of each device's datasheet.
LPV511MGX/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:
- Rail-to-Rail
- Slew Rate:
- 0.0077V/µs
- Gain Bandwidth Product:
- 25 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 320 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 1.2µA
- Current - Output / Channel:
- 1.3 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LPV511MGX/NOPB FAQ
1.How can I place an order for LPV511MGX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV511MGX/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 LPV511MGX/NOPB reliable?
The price and inventory of LPV511MGX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV511MGX/NOPB is usually 5 days.
3.What payment methods are accepted for LPV511MGX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV511MGX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV511MGX/NOPB?
LPV511MGX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV511MGX/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 LPV511MGX/NOPB?
For technical support, including LPV511MGX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV511MGX/NOPB requirements.
6.How does Aetrix verify that LPV511MGX/NOPB is sourced from the original manufacturer or authorized distributors?
All LPV511MGX/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 LPV511MGX/NOPB meets industry standards.
7.What is the process for return or replacement of LPV511MGX/NOPB?
All LPV511MGX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LPV511MGX/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 LPV511MGX/NOPB part is unused and in its original packaging.
Return procedure for LPV511MGX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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