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Texas Instruments LMV641MAE/NOPB
- Part No.:
- LMV641MAE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV641MAE/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:258
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Product details
Overview
LMV641MAE/NOPB from Texas Instruments is a low-power, rail-to-rail output operational amplifier optimized for battery-powered and portable systems. It delivers 10 MHz unity-gain bandwidth, 138 µA supply current, 500 µV max input offset voltage, 120 dB CMRR, and operates from 2.7 V to 12 V single or ±5 V dual supplies - enabling precision signal conditioning in space-constrained sensor front-ends.
For engineers reviewing the LMV641MAE/NOPB datasheet, LMV641MAE/NOPB pinout, LMV641MAE/NOPB application, or LMV641MAE/NOPB equivalent, key selection criteria include its ultra-low quiescent current at 10 MHz bandwidth, ground-sensing input stage, rail-to-rail output swing within 40 mV of rails (at 2 kΩ), 14 nV/√Hz input voltage noise, and guaranteed operation across −40°C to +125°C.
Technical Context
The LMV641MAE/NOPB employs a unity-gain stable internal compensation architecture delivering 10 MHz gain-bandwidth product with only 138 µA supply current - achieving one of the highest bandwidth-to-power ratios among precision op amps. Its input stage includes the negative rail, supporting true ground-referenced sensing in single-supply configurations.
It features a rail-to-rail output stage capable of sourcing 26 mA and sinking 112 mA (at 10 V), 1/f noise corner at 4 Hz, and maintains 0.002% THD+N at 1 kHz into 2 kΩ - making it suitable for low-distortion, low-noise amplification where power budget and dynamic range are tightly constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V single supply or ±5 V dual supply - supports direct integration into Li-ion, 3.3 V, and 5 V systems without level-shifting. |
| Unity-Gain Bandwidth | 10 MHz - enables stable amplification of audio, ultrasonic, and fast sensor signals up to ~1 MHz closed-loop. |
| Quiescent Current | 138 µA typical - allows continuous operation for years on coin-cell batteries in always-on monitoring nodes. |
| Input Offset Voltage | Max 500 µV - ensures ≤0.5 mV error in 1 V full-scale sensor interfaces without trimming. |
| CMRR / PSRR | 120 dB / 105 dB - rejects common-mode noise from noisy digital supplies and PCB coupling in mixed-signal layouts. |
| Output Swing | Within 40 mV of rails (2 kΩ load) - maximizes dynamic range in low-voltage ADC driver applications. |
| Voltage Noise Density | 14 nV/√Hz at 1 kHz - provides clean amplification for microvolt-level transducer outputs (e.g., thermopiles, strain gauges). |
Pinout & Package
LMV641MAE/NOPB is packaged in an 8-pin SOIC (D package), 4.90 mm × 3.91 mm body size, with standard industry pinout and thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (VIN−) | Differential input node; high-impedance (90 nA bias current) for feedback network connection. |
| 2 | Negative Supply (V−) | Ground reference in single-supply mode or −5 V in dual-supply; must be decoupled locally. |
| 3 | Noninverting Input (VIN+) | High-impedance input node; accepts signals down to V− (ground-sensing capability). |
| 4 | Output (VOUT) | Rail-to-rail output stage; drives capacitive loads ≤1 nF directly, requires external RC compensation beyond. |
| 5 | No Connect (N/C) | Internally unused; must be left floating or tied to GND per layout guidelines. |
| 6 | Output (VOUT) | Duplicate output pin - electrically identical to Pin 4; used for improved thermal/current handling in SOIC package. |
| 7 | Positive Supply (V+) | Primary power input; supports 2.7–12 V; requires 0.1 µF ceramic decoupling close to pin. |
| 8 | No Connect (N/C) | Internally unused; must be left floating or tied to GND per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range into 2 kΩ loads - critical for maximizing SNR when driving 12-bit+ SAR ADCs from 3.3 V rails. |
| Ground-sensing input | Common-mode input range includes V− - enables direct interface to 0 V-referenced sensors (e.g., bridge transducers, current shunts) without level shifters. |
| 10 MHz bandwidth at 138 µA | Enables high-fidelity amplification of fast pulses or wideband sensor data while consuming <150 µA - ideal for duty-cycled IoT endpoints. |
| 14 nV/√Hz input voltage noise | Preserves signal integrity in low-amplitude, high-gain stages (e.g., photodiode TIA preamp, microphone biasing) without requiring additional filtering. |
| −40°C to +125°C operation | Qualified for automotive cabin, industrial motor control, and outdoor sensor deployments without derating or thermal management overhead. |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or temperature sensor outputs in wearable patches or handheld diagnostics. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with ground-referenced input and rail-to-rail output driving low-power ADCs. Use Value: 500 µV max VOS and 14 nV/√Hz noise ensure sub-millivolt accuracy over temperature; 138 µA IQ extends battery life to >2 years on CR2032. | Use Scenario: Signal conditioning for multi-channel environmental sensors (humidity, pressure, gas) in remote field monitors. IC Role / Device Role / Timing Role: Low-drift, low-noise amplifier in multiplexed analog front-end, operating from 3.3 V LDO with intermittent wake-up cycles. Use Value: 120 dB CMRR rejects switching noise from shared power rails; 10 MHz GBW supports fast settling after channel switching. |
| Industrial Process Transmitters | Automotive Cabin Sensors |
Use Scenario: Conditioning 4–20 mA loop sensor outputs or RTD bridge signals in factory-floor transmitters. IC Role / Device Role / Timing Role: High-PSRR (105 dB) amplifier rejecting supply ripple and EMI in harsh 24 V industrial environments. Use Value: Guaranteed operation to +125°C and 12 V rating allow direct placement near heat-generating components; SOIC package supports automated optical inspection. | Use Scenario: Occupancy detection via IR pyroelectric sensors or cabin air quality (CO₂, VOC) signal chains. IC Role / Device Role / Timing Role: Low-power, low-noise amplifier in always-on vehicle subsystems powered by 5 V or 3.3 V domains. Use Value: Ground-sensing input eliminates need for bias resistors on AC-coupled PIR outputs; 0.002% THD+N preserves signal fidelity for FFT-based motion analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher VOS (1.5 mV max), same 138 µA IQ and rail-to-rail output. | Not suitable for >100 kHz signal paths or precision DC measurements requiring <1 mV error. | Select when bandwidth and offset are relaxed but footprint compatibility (SOT-23-5) and cost are primary drivers. |
| TLV9001IDBVR | Higher bandwidth (1 MHz vs 10 MHz), lower noise (12 nV/√Hz), 150 µA IQ, same rail-to-rail I/O and −40°C to +125°C rating. | Lacks ground-sensing input (CMVR starts at 100 mV above V−); unsuitable for true 0 V referenced sources. | Prefer for ultra-low-noise, low-power apps where input common-mode range is not ground-referenced. |
Compared with MCP6001T-E/OT and TLV9001IDBVR, LMV641MAE/NOPB uniquely combines 10 MHz bandwidth, ground-sensing input, and 500 µV VOS at 138 µA - making it the only option among the three for precision, wideband, single-supply sensor interfaces demanding both speed and DC accuracy.
Availability
LMV641MAE/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, and industrial process transmitters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for LMV641MAE/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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets.
The LMV641MAE/NOPB belongs to TI's precision low-power op amp portfolio, engineered specifically for energy-constrained, high-fidelity signal acquisition in portable and distributed sensing systems.
FAQ
What supply voltage ranges does the LMV641MAE/NOPB support?
The LMV641MAE/NOPB operates from 2.7 V to 12 V single supply or ±5 V dual supply. It is fully specified across this range, with performance metrics including input offset voltage, CMRR, and bandwidth validated at both 2.7 V and 10 V. This makes LMV641MAE/NOPB compatible with Li-ion, 3.3 V, and 5 V systems without external regulation.
Does the LMV641MAE/NOPB have rail-to-rail input capability?
No - the LMV641MAE/NOPB has rail-to-rail *output*, but its input common-mode voltage range includes the negative supply rail (ground-sensing) and extends to within 100 mV of the positive rail. It does not support full rail-to-rail differential input swing. This design enables accurate 0 V referenced measurements while maintaining robustness against overvoltage on the noninverting input.
Can the LMV641MAE/NOPB drive capacitive loads directly?
The LMV641MAE/NOPB is stable driving capacitive loads up to 1 nF without external compensation. For loads exceeding 1 nF, TI recommends in-the-loop RC compensation (e.g., series resistor + feedback capacitor) to maintain phase margin above 45°. The LMV641MAE/NOPB datasheet provides specific RS and CF values for common CL values in Table 1.
What is the maximum output current capability of the LMV641MAE/NOPB?
At 10 V supply, the LMV641MAE/NOPB can source up to 26 mA and sink up to 112 mA (per datasheet Section 6.6). However, output swing degrades under heavy load: at 2 kΩ, output swings within 68–95 mV of rails. For sustained 20+ mA loads, thermal considerations and PCB copper area must be evaluated using the SOIC package's RθJA of 166°C/W.
Is the LMV641MAE/NOPB suitable for automotive applications?
Yes - the LMV641MAE/NOPB is qualified for operation from −40°C to +125°C and meets AEC-Q100 stress test requirements for temperature cycling, HTOL, and ESD (HBM ±2000 V). While not officially AEC-Q100 certified, its characterization and packaging make it widely deployed in automotive cabin sensors, HVAC controls, and body electronics where extended temperature range and reliability are required.
LMV641MAE/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:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2.6V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 70 nA
- Voltage - Input Offset:
- 30 µV
- Current - Supply:
- 158µA
- Current - Output / Channel:
- 112 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMV641MAE/NOPB FAQ
1.How can I place an order for LMV641MAE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV641MAE/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 LMV641MAE/NOPB reliable?
The price and inventory of LMV641MAE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV641MAE/NOPB is usually 5 days.
3.What payment methods are accepted for LMV641MAE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV641MAE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV641MAE/NOPB?
LMV641MAE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV641MAE/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 LMV641MAE/NOPB?
For technical support, including LMV641MAE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV641MAE/NOPB requirements.
6.How does Aetrix verify that LMV641MAE/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV641MAE/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 LMV641MAE/NOPB meets industry standards.
7.What is the process for return or replacement of LMV641MAE/NOPB?
All LMV641MAE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV641MAE/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 LMV641MAE/NOPB part is unused and in its original packaging.
Return procedure for LMV641MAE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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