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Texas Instruments LM7341MFE/NOPB
- Part No.:
- LM7341MFE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM7341MFE/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:240
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Product details
Overview
LM7341MFE/NOPB from Texas Instruments is a rail-to-rail input/output operational amplifier in a 5-pin SOT-23 package, delivering 4.6 MHz gain bandwidth, 1.9 V/µs slew rate, and ±15V supply operation. It supports −40°C to 125°C operation and enables high-side sensing, photodiode biasing, and sensor output buffering in space-constrained industrial and automotive systems.
For engineers reviewing the LM7341MFE/NOPB datasheet, LM7341MFE/NOPB pinout, LM7341MFE/NOPB application, or LM7341MFE/NOPB equivalent, key selection criteria include rail-to-rail CMVR (−15.3V to +15.3V), output swing within 135 mV of rails at ±15V, PSRR of 106 dB, CMRR of 115 dB, and guaranteed performance across 2.5V–32V supply range and extended temperature.
Technical Context
The LM7341MFE/NOPB employs a CMOS input stage enabling > rail-to-rail common-mode input voltage range (−15.3V to +15.3V at ±15V supplies) and rail-to-rail output swing (−14.84V to +14.86V). Its 4.6 MHz GBW and 1.9 V/µs slew rate support medium-speed signal conditioning without phase margin collapse into 1000 pF loads.
It operates across split supplies (±2.5V to ±15V) or single supplies (2.7V to 32V), with supply current stable at 0.7–1.2 mA over temperature and voltage. Input offset voltage remains ≤ ±4 mV (typ ±0.2 mV), and TCVOS is ±2 µV/°C - enabling precision DC-coupled applications like current sensing and reference buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 4.6 MHz - supports closed-loop gain ≥10 at 460 kHz with stable phase margin into 1000 pF. |
| Slew Rate | 1.9 V/µs - enables 12-Vpp output at 150 kHz without slewing distortion. |
| Input CMVR | −15.3V to +15.3V at ±15V - allows direct connection to signals beyond supply rails, e.g., high-side shunt monitoring. |
| Output Swing | Within 135 mV of either rail at ±15V/10 kΩ - delivers full dynamic range in low-headroom analog front-ends. |
| PSRR / CMRR | 106 dB / 115 dB - rejects supply noise and common-mode interference in noisy automotive or industrial environments. |
| Supply Range | 2.5V to 32V - interoperable with 3.3V logic, ±5V instrumentation, and ±15V legacy analog systems. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive and industrial control cabinet deployment. |
Pinout & Package
LM7341MFE/NOPB uses a 5-pin SOT-23 (TinyPak) package with 325°C/W thermal resistance, optimized for minimal PCB footprint and proximity placement near signal sources to reduce noise pickup.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Inverting Input (−) | Differential input node | Accepts signals down to −15.3V; enables precision inverting configurations with rail-to-rail input compliance. |
| Non-Inverting Input (+) | Differential input node | Accepts signals up to +15.3V; supports high-side sensing and non-inverting buffers without level-shifting. |
| Output | Amplified signal source | Drives loads to within 135 mV of rails; sustains 10 mA sink/source at ±15V with <0.4% THD+N at 10 kHz. |
| V+ | Positive supply terminal | Accepts 2.7V to 32V (single) or up to +15V (split); internal regulation ensures stable bias over wide voltage range. |
| V− | Negative supply terminal | Accepts ground (single-supply) or down to −15V (split); enables true bipolar operation and below-ground sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input CMVR | Exceeds supply rails by ±0.3 V at ±15V - eliminates need for external level shifters in high-/low-side current sensing. |
| Rail-to-rail output swing | Swings to within 135 mV of V+ and V− at ±15V/10 kΩ - maximizes ADC input range and dynamic headroom. |
| Capacitive load drive | Stable with ≥1000 pF loads - enables direct driving of long cables or ADC input filters without isolation resistors. |
| Low distortion | THD+N = −66 dB at 10 kHz - preserves signal fidelity in audio, modem line isolation, and sensor signal chains. |
| Wide supply flexibility | Operates from 2.5V single to ±15V split - simplifies BOM consolidation across battery-powered, industrial, and legacy systems. |
Applications
| Automotive Battery Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Real-time monitoring of 12V/24V battery voltage and current in engine control units with wide temperature variation. IC Role / Device Role / Timing Role: High-side current sense amplifier and rail-referenced voltage buffer feeding MCU ADC inputs. Use Value: Input CMVR extends to −15.3V enables direct shunt measurement on battery negative side; rail-to-rail output ensures full 0–3.3V ADC range utilization. |
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or strain gauges in PLC I/O modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and anti-alias filtering. Use Value: 115 dB CMRR rejects common-mode noise from 50/60 Hz mains; 4.6 MHz GBW supports fast settling for multiplexed sensor scanning. |
| Optocoupler Driver for Modem Isolation | Handheld Remote Control Signal Chain |
|
Use Scenario: Driving LED anodes in optocouplers for telephone line isolation in embedded modems and VoIP gateways. IC Role / Device Role / Timing Role: Low-distortion, high-current output driver interfacing MCU GPIO to opto-LED. Use Value: −66 dB THD+N at 10 kHz preserves signal integrity; 10 mA output capability drives standard optocouplers without external transistors. |
Use Scenario: Amplifying IR receiver signals in compact remote controls where board space and power are constrained. IC Role / Device Role / Timing Role: Low-power, high-bandwidth signal conditioner between photodiode and microcontroller comparator. Use Value: 0.75 mA supply current extends battery life; 5-pin SOT-23 fits within 3×3 mm footprint; 4.6 MHz GBW supports >1 MHz carrier demodulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Lower GBW (6.4 MHz), higher supply current (1.3 mA), narrower CMVR (to V− +0.2V / V+ −0.2V) | Less suitable for high-side sensing or low-voltage rail-to-rail input; better for low-noise, low-offset precision apps | Choose TLV2462IDR only when offset voltage (<1 mV) and noise (22 nV/√Hz) outweigh rail-to-rail input needs. |
| OPA333AIDBVR | Zero-drift architecture, 0.02 µV/°C TCVOS, but lower GBW (350 kHz), no rail-to-rail input (CMVR = V− to V+ −1.5V) | Optimized for ultra-stable DC gain stages, not AC-coupled or wide-dynamic-range signal paths | Select OPA333AIDBVR for millivolt-level DC measurements; avoid for photodiode biasing or high-side sensing. |
Compared with TLV2462IDR and OPA333AIDBVR, LM7341MFE/NOPB uniquely combines rail-to-rail input beyond supply rails, 4.6 MHz bandwidth, and −40°C to 125°C operation in SOT-23 - making it the only choice for space-constrained, wide-supply, high-CMVR applications like automotive current sensing and industrial sensor front-ends.
Availability
LM7341MFE/NOPB is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial sensor signal conditioning, optocoupler driver circuits, handheld remote controls, and high-side current sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for LM7341MFE/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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and consumer markets.
LM7341MFE/NOPB belongs to TI's precision rail-to-rail op amp product line, engineered specifically for space-constrained, wide-supply, high-CMVR applications including current sensing, sensor buffering, and optical isolation interfaces.
FAQ
What is the maximum differential input voltage rating for LM7341MFE/NOPB?
The absolute maximum differential input voltage for LM7341MFE/NOPB is ±15V, as specified in the Absolute Maximum Ratings table. Exceeding this limit - even momentarily - risks permanent damage to the input MOS gates. This rating applies regardless of supply voltage and must be respected in comparator or high-gain configurations where input overvoltage may occur.
Can LM7341MFE/NOPB operate from a single 3.3V supply?
Yes, LM7341MFE/NOPB supports single-supply operation from 2.5V to 32V. At 3.3V, it delivers rail-to-rail output swing (within ~100 mV of each rail at 10 kΩ), 3.6 MHz GBW, and 1.5 V/µs slew rate. Input CMVR spans −0.3V to 3.6V, enabling direct interface with sensors or DACs referenced to ground or VDD.
Does LM7341MFE/NOPB require external compensation for stability?
No, LM7341MFE/NOPB is unity-gain stable and requires no external compensation. It maintains ≥30° phase margin driving capacitive loads up to 1000 pF, as verified in Figure 40 of the datasheet. For loads >1000 pF, a series resistor (≥10 Ω) at the output is recommended to isolate capacitance from the amplifier's output impedance.
What is the typical input bias current of LM7341MFE/NOPB at ±15V supplies?
At ±15V supplies and 25°C, LM7341MFE/NOPB exhibits input bias current of −110 nA (typical) at VCM = −14.5V and +80 nA (typical) at VCM = +14.5V, per the ±15V Electrical Characteristics table. This asymmetry arises from its CMOS input structure and must be considered in high-impedance inverting configurations to minimize offset error.
Is LM7341MFE/NOPB suitable for use as a comparator?
LM7341MFE/NOPB can function as a comparator in non-critical applications, with typical propagation delay of 12 µs at 1V overdrive and 17 µs at 50 mV overdrive (VS = 30V). However, it lacks dedicated comparator features like open-collector output or internal hysteresis. Use only where speed and precision requirements are moderate, and always respect the ±15V differential input voltage limit to prevent damage.
LM7341MFE/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.9V/µs
- Gain Bandwidth Product:
- 4.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 110 nA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 700µA
- Current - Output / Channel:
- 13 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM7341MFE/NOPB FAQ
1.How can I place an order for LM7341MFE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM7341MFE/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 LM7341MFE/NOPB reliable?
The price and inventory of LM7341MFE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM7341MFE/NOPB is usually 5 days.
3.What payment methods are accepted for LM7341MFE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM7341MFE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM7341MFE/NOPB?
LM7341MFE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM7341MFE/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 LM7341MFE/NOPB?
For technical support, including LM7341MFE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM7341MFE/NOPB requirements.
6.How does Aetrix verify that LM7341MFE/NOPB is sourced from the original manufacturer or authorized distributors?
All LM7341MFE/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 LM7341MFE/NOPB meets industry standards.
7.What is the process for return or replacement of LM7341MFE/NOPB?
All LM7341MFE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM7341MFE/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 LM7341MFE/NOPB part is unused and in its original packaging.
Return procedure for LM7341MFE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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