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Texas Instruments LPV511MG/NOPB
- Part No.:
- LPV511MG/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LPV511MG/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,136
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Product details
Overview
LPV511MG/NOPB from Texas Instruments is a micropower rail-to-rail input and output operational amplifier designed for ultra-low-power signal conditioning in battery-constrained systems. It operates from 2.7 V to 12 V, draws only 880 nA supply current at 3 V, delivers 27 kHz gain bandwidth (CL = 50 pF), 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 LPV511MG/NOPB datasheet, LPV511MG/NOPB pinout, LPV511MG/NOPB application, or LPV511MG/NOPB equivalent, key selection criteria include its verified 880 nA quiescent current, rail-to-rail I/O capability across –40°C to 85°C, 27 kHz bandwidth at unity gain, ±0.2 mV typical input offset voltage, and SC70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The LPV511MG/NOPB uses a dual-differential-input architecture (parallel PNP and NPN pairs) to achieve true rail-to-rail input operation, with automatic transition logic ensuring stable performance across the full common-mode range (–0.1 V to 12.1 V at 12 V supply). Its input offset voltage exhibits a known crossover point ~1 V below V+, requiring careful signal placement in precision DC-coupled designs.
The output stage supports rail-to-rail swing (e.g., 2.85 V high / 100 mV low at 3 V) and delivers ±1.35 mA short-circuit current. Internally compensated for unity-gain stability, it maintains ≥52° phase margin with 50 pF capacitive load but benefits from series isolation resistance (>10 Ω) when driving >100 pF loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - supports single-cell Li-ion (3.0–4.2 V), 5 V USB-powered, and 9–12 V industrial rails without level-shifting. |
| Supply Current | 0.88 µA typical at 3 V - enables >10-year battery life in coin-cell–powered thermostats and remote sensors. |
| Gain Bandwidth Product | 27 kHz at CL = 50 pF - sufficient for DC–20 kHz sensor amplification (e.g., thermistor, RTD, photodiode) with unity-gain stability. |
| Input Offset Voltage | ±0.2 mV typical at 25°C - allows sub-100 µV measurement resolution in 12-bit ADC interfaces with minimal calibration. |
| Output Swing | Within 100 mV of rails at 3 V - maximizes usable signal headroom in low-voltage systems, preserving SNR in 3.3 V ADCs. |
| Input Common-Mode Range | –0.1 V to 12.1 V at 12 V supply - enables direct high-side and ground-referenced current sensing without external biasing. |
| Slew Rate | 7.7 V/ms at 3 V - adequate for step responses <1 µs in slow-control loops and filtered sensor outputs. |
Pinout & Package
LPV511MG/NOPB is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for area-constrained portable PCBs and automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Amplifier output | Delivers rail-to-rail voltage with 100 mV headroom; requires series resistor for >100 pF capacitive loads to maintain stability. |
| 2 - V− | Negative supply | Ground reference (0 V) in single-supply configurations; must be decoupled locally to minimize noise coupling. |
| 3 - VIN+ | Noninverting input | Accepts signals from –0.1 V to V+ + 0.3 V; exhibits input bias current polarity reversal near V+ transition region. |
| 4 - VIN− | Inverting input | Supports feedback networks up to 10 MΩ; differential input voltage limited to ±2.1 V to prevent internal diode conduction. |
| 5 - V+ | Positive supply | Accepts 2.7–12 V; PSRR >72 dB ensures immunity to supply ripple in noisy battery/DC-DC environments. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Enables direct interface to sensors operating at ground or near-V+ - eliminates level-shifting in high-side current monitors. |
| Rail-to-rail output | Provides full 2.8 Vpp dynamic range at 3 V supply - critical for maximizing resolution in low-voltage 12-bit ADC systems. |
| 880 nA supply current | Reduces average power to <2.7 µW at 3 V - extends shelf life of sealed environmental sensors and IoT edge nodes. |
| 27 kHz GBW, unity-gain stable | Guarantees stable closed-loop operation without external compensation - simplifies design of anti-aliasing and sensor filters. |
| –40°C to 85°C operating range | Validated performance across industrial temperature extremes - suitable for outdoor security systems and automotive cabin sensors. |
Applications
| Battery Current Sensing | Remote Temperature Monitoring |
|---|---|
Use Scenario: High-side current sensing in lithium coin-cell–powered smoke detectors with 10-year battery life requirement. IC Role / Device Role / Timing Role: Precision amplifier for milliohm shunt voltage amplification, operating continuously at 880 nA quiescent current. Use Value: Enables detection of 10 µA leakage currents while consuming <2.7 µW - directly extending battery service life beyond 10 years. |
Use Scenario: Thermistor signal conditioning in wireless HVAC thermostats deployed in unconditioned attics (-40°C to 85°C). IC Role / Device Role / Timing Role: Low-drift, rail-to-rail buffer for NTC voltage divider output, interfacing to 12-bit SAR ADC. Use Value: Delivers ±0.2 mV offset and 77 dB CMRR over temperature - achieves ±0.1°C measurement accuracy without software calibration. |
| Solar-Powered Environmental Sensor | Portable Gas Detector Front-End |
Use Scenario: Photodiode transimpedance amplifier in solar-charged air quality node with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Micropower TIA with rail-to-rail output, active only during 100-ms sampling bursts every 5 minutes. Use Value: Draws 0.88 µA between samples and settles in <50 µs - minimizes energy per measurement, enabling >5-year field deployment. |
Use Scenario: Electrochemical sensor amplifier in handheld CO detector powered by two AA alkaline cells (3 V nominal). IC Role / Device Role / Timing Role: Ultra-low-noise (320 nV/√Hz) signal conditioner for picoamp-level sensor current, referenced to battery ground. Use Value: Achieves 100 mV output swing headroom at 3 V - preserves full-scale range for 0–1000 ppm CO detection with 12-bit digitization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40007AUT+T | Higher supply current (600 nA vs 880 nA), lower GBW (10 kHz), same SC70-5 package. | Better ESD rating (±4 kV HBM), but reduced bandwidth limits use in faster sensor sampling. | Select when ESD robustness outweighs bandwidth needs and supply current budget allows margin. |
| TLV8511DBVR | Lower supply current (450 nA), same rail-to-rail I/O, but narrower supply range (1.8–6 V). | Not rated for 12 V operation; unsuitable for industrial 9–12 V rails or wide-input solar chargers. | Prefer for sub-6 V battery systems where ultra-low IQ is primary constraint and 12 V compatibility is unnecessary. |
Compared with MAX40007AUT+T and TLV8511DBVR, LPV511MG/NOPB uniquely balances 27 kHz bandwidth, 2.7–12 V operation, and verified rail-to-rail I/O in SC70 - making it the only option supporting high-accuracy, long-life sensing across single-cell Li-ion, 5 V USB, and 12 V industrial supplies without redesign.
Availability
LPV511MG/NOPB is available at Aetrix Electronics and suitable for battery-powered systems, remote sensor amplifiers, and micropower thermostats requiring stable component supply across extended production lifecycles.
Supply support for LPV511MG/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 low-power op amp design and process innovation.
The LPV511MG/NOPB belongs to TI's micropower operational amplifier product line, engineered specifically for ultra-long-life, battery-operated sensing applications where nanoscale supply current and rail-to-rail signal fidelity are non-negotiable.
FAQ
What is the maximum operating supply voltage for LPV511MG/NOPB?
The LPV511MG/NOPB supports a maximum supply voltage of 12 V, with fully characterized electrical specifications at 3 V, 5 V, and 12 V. Absolute maximum ratings specify 13.2 V (V+ − V−), but sustained operation above 12 V risks parametric degradation and is not recommended. All guaranteed performance data - including bandwidth, offset, and output swing - applies strictly within the 2.7 V to 12 V recommended range.
Does LPV511MG/NOPB support true rail-to-rail input at 12 V supply?
Yes, LPV511MG/NOPB supports rail-to-rail input with a common-mode range of –0.1 V to 12.1 V at 12 V supply, verified per TI's Electrical Characteristics table. This enables direct connection to sensors referenced to ground or to V+ (e.g., high-side current sense), without external bias resistors. However, input offset voltage exhibits a known crossover near V+ − 1 V, so signal placement should avoid this transition region in precision DC applications.
Can LPV511MG/NOPB drive a 1000 pF capacitive load directly?
No, LPV511MG/NOPB is not optimized for direct 1000 pF loads. While unity-gain stable with ≤50 pF, driving >100 pF requires a series isolation resistor (RISO) at the output to restore phase margin. TI's Application Report recommends RISO ≥ 20 Ω for 1000 pF, trading minor DC gain error (<0.5%) for stability. Without RISO, oscillation or overshoot occurs due to reduced phase margin below 52°.
What is the typical input bias current polarity behavior of LPV511MG/NOPB?
LPV511MG/NOPB exhibits polarity reversal of input bias current (IB) across its rail-to-rail input range: IB is negative (sinking) near V− and positive (sourcing) near V+, with a zero-crossing near the PNP/NPN differential pair transition region (~1 V below V+). At 25°C and VCM = 0.5 V, IB = –320 pA; at VCM = 4.5 V (5 V supply), IB = +800 pA. This must be accounted for in high-impedance feedback networks to avoid offset errors.
Is LPV511MG/NOPB suitable for use as a comparator?
No, LPV511MG/NOPB is not intended for comparator operation. Its absolute maximum differential input voltage is ±2.1 V (due to three series diodes between inputs), and internal phase compensation is optimized for linear closed-loop operation. Using it open-loop risks latch-up, excessive propagation delay (>100 µs), and undefined output states. For comparator functions, TI recommends dedicated devices such as TLV3691 or LMV331.
LPV511MG/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
LPV511MG/NOPB FAQ
1.How can I place an order for LPV511MG/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LPV511MG/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 LPV511MG/NOPB reliable?
The price and inventory of LPV511MG/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPV511MG/NOPB is usually 5 days.
3.What payment methods are accepted for LPV511MG/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPV511MG/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPV511MG/NOPB?
LPV511MG/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPV511MG/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 LPV511MG/NOPB?
For technical support, including LPV511MG/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPV511MG/NOPB requirements.
6.How does Aetrix verify that LPV511MG/NOPB is sourced from the original manufacturer or authorized distributors?
All LPV511MG/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 LPV511MG/NOPB meets industry standards.
7.What is the process for return or replacement of LPV511MG/NOPB?
All LPV511MG/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LPV511MG/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 LPV511MG/NOPB part is unused and in its original packaging.
Return procedure for LPV511MG/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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