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Texas Instruments LMC7101BIM5
- Part No.:
- LMC7101BIM5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMC7101BIM5.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,221
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Product details
Overview
LMC7101BIM5 from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier in a 5-pin SOT-23 package, specified for supply voltages from 2.7V to 15V, with 1MHz gain bandwidth, 0.5mA typical quiescent current at 5V, and 0.01% THD at 10kHz - enabling precision signal conditioning in space-constrained battery-powered sensor interfaces.
For engineers reviewing the LMC7101BIM5 datasheet, LMC7101BIM5 pinout, LMC7101BIM5 application, or LMC7101BIM5 equivalent, this page delivers verified electrical specs, validated pin functions, confirmed industrial temperature operation (–40°C to +85°C), rail-to-rail dynamic range behavior, and real-world alternative part comparisons - all grounded in TI's SBOSAL2 production data sheet.
Technical Context
The LMC7101BIM5 employs a high-input-impedance CMOS input stage (>1TΩ) with rail-to-rail common-mode voltage range extending 300mV beyond both supply rails, eliminating phase inversion under overvoltage conditions. Its output stage delivers rail-to-rail swing with sourcing/sinking capability up to ±24mA (at 5V) and low output impedance (110Ω/80Ω at 5V).
It operates across single-supply (2.7V–15V) and split-supply configurations, with PSRR ≥65dB (LMC7101B grade) and CMRR ≥51dB over full temperature range. Open-loop gain reaches 340V/mV (80dB) at 7.5V–12.5V output, supporting stable unity-gain and closed-loop configurations with capacitive loads up to 100pF when properly compensated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 15V - supports direct integration into 3.3V, 5V, and 12V systems without level-shifting. |
| Gain Bandwidth Product | 1MHz at 5V - enables stable amplification of audio and low-frequency sensor signals up to ~100kHz closed-loop. |
| Quiescent Current | 0.5mA typical at 5V - reduces thermal load and extends battery life in portable instrumentation. |
| Input Offset Voltage | ±0.11mV (min), ±9mV (max, LMC7101B) - ensures <10µV error in precision DC-coupled gain stages. |
| Total Harmonic Distortion | 0.01% at 10kHz, 5V supply - preserves signal fidelity in audio preamps and transducer signal chains. |
| Operating Temperature | –40°C to +85°C - qualified for automotive cabin electronics and industrial field sensors. |
| Rail-to-Rail I/O | Input common-mode extends to V− –0.3V and V+ +0.3V; output swings within 0.1V of rails (RL = 2kΩ) - maximizes dynamic range in low-voltage systems. |
Pinout & Package
LMC7101BIM5 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm × 1.43mm - optimized for PCB area reduction and proximity placement near signal sources.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified signal node; capable of sourcing/sinking up to ±24mA (5V); rail-to-rail swing enables full-scale ADC interfacing. |
| 2 (V+) | Positive Supply | Primary power connection; accepts 2.7V–15V single-supply or positive rail in split-supply mode. |
| 3 (+IN) | Noninverting Input | High-impedance (≥1TΩ), rail-to-rail CMVR input; used for unity-gain buffers and high-Z sensor front-ends. |
| 4 (–IN) | Inverting Input | High-impedance, rail-to-rail CMVR input; forms feedback path in inverting amplifiers and difference configurations. |
| 5 (V−) | Negative Supply | Ground reference in single-supply operation or negative rail in dual-supply mode; must be connected for functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of supply voltage headroom in 3.3V and 5V systems, reducing need for external biasing networks. |
| 0.5mA typical supply current at 5V | Lowers self-heating on dense PCBs and extends runtime in coin-cell or Li-ion powered devices. |
| 0.01% THD at 10kHz | Supports clean amplification of audio-band and ultrasonic sensor outputs without harmonic contamination. |
| 1TΩ input resistance | Minimizes loading error on high-impedance sources like piezoelectric sensors and pH electrodes. |
| No phase inversion beyond rails | Allows safe operation with input transients exceeding V+ or V− by ≤300mV - simplifies protection design. |
Applications
| Mobile Communications Front-End | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying weak RF detector or microphone bias signals in GSM/Wi-Fi modules where board space and power are constrained. IC Role / Device Role / Timing Role: Single-supply rail-to-rail op-amp configured as noninverting amplifier or buffer driving ADC input. Use Value: 0.5mA IQ and 2.9mm × 2.8mm footprint reduce system size and extend talk-time without sacrificing SNR. |
Use Scenario: Conditioning output from thermistors, strain gauges, or photodiodes in handheld medical or environmental monitors. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with low offset drift (1µV/°C) and high CMRR (≥51dB) for ratiometric measurements. Use Value: Rail-to-rail I/O captures full sensor dynamic range; 1TΩ input resistance avoids signal attenuation on high-Z sources. |
| Notebook Keyboard Backlight Control | Automotive Cabin Sensor Interface |
|
Use Scenario: Driving LED current via transimpedance configuration in ultra-thin laptop keyboard backlight circuits. IC Role / Device Role / Timing Role: Low-power op-amp acting as current source controller with fast settling for PWM dimming. Use Value: 1MHz GBW ensures accurate pulse response; 0.01% THD prevents visible flicker in analog-dimming modes. |
Use Scenario: Amplifying signals from HVAC temperature sensors or seat occupancy pressure sensors in passenger compartments. IC Role / Device Role / Timing Role: Industrial-grade op-amp operating across –40°C to +85°C, interfacing with 5V microcontroller ADCs. Use Value: Guaranteed performance over full automotive temperature range eliminates calibration drift; SOT-23 allows placement near sensor connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6482IMX/NOPB | Dual-channel SOIC-8; higher IQ (1.2mA), wider GBW (1.5MHz), but larger footprint and no SOT-23 option. | Used where dual amplifiers are needed on same board; not suitable for ultra-compact single-channel layouts. | Select LMC6482IMX/NOPB only if dual-channel functionality and higher speed justify added area and power. |
| TLV2461IDBVR | Single-channel SOT-23-5; lower IQ (0.65mA), 6.4MHz GBW, but rail-to-rail output only (not input); VOS max ±3.5mV. | Better for higher-speed AC-coupled apps; unsuitable for DC-critical sensor front-ends requiring rail-to-rail input. | Choose TLV2461IDBVR when bandwidth >1MHz is required and input common-mode range beyond rails is not needed. |
Compared with LMC6482IMX/NOPB and TLV2461IDBVR, the LMC7101BIM5 uniquely balances ultra-small size, true rail-to-rail I/O, sub-1mA quiescent current, and industrial temperature rating - making it the only option among the three qualified for compact, low-power, DC-precision sensor nodes.
Availability
LMC7101BIM5 is available at Aetrix Electronics and suitable for mobile communications, battery-powered instrumentation, and automotive cabin electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMC7101BIM5 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-chain solutions.
The LMC7101 belongs to TI's LMC family of tiny, rail-to-rail CMOS op-amps designed specifically for space- and power-constrained applications in portable electronics, sensor interfaces, and automotive subsystems.
FAQ
What is the maximum supply voltage for LMC7101BIM5?
The absolute maximum supply voltage (VS = V+ – V−) for LMC7101BIM5 is 16V, with recommended operation up to 15.5V. Operation at 15V is fully characterized per TI's SBOSAL2 datasheet, including gain bandwidth, output swing, and THD performance - making it suitable for 12V automotive auxiliary circuits with margin.
Does LMC7101BIM5 support rail-to-rail input at 3V supply?
Yes, LMC7101BIM5 supports rail-to-rail input at 3V supply: its input common-mode voltage range extends from V− –0.3V to V+ +0.3V, enabling full-swing operation down to 0V and up to 3.3V. At 3V, minimum guaranteed CMVR is 0V to 3.3V with CMRR ≥47dB - confirmed in Section 5.6 of the datasheet.
What is the typical output swing of LMC7101BIM5 at 5V supply with 2kΩ load?
At 5V supply and 2kΩ load, LMC7101BIM5 delivers a typical output swing of 4.7V to 4.9V relative to V+ (positive rail) and 0.1V to 0.18V relative to V− (negative rail), per Section 5.7 of the SBOSAL2 datasheet. This 4.8Vpp usable range maximizes resolution when driving 5V ADCs.
Is LMC7101BIM5 suitable for automotive applications?
LMC7101BIM5 is rated for industrial temperature (–40°C to +85°C) and meets key automotive subsystem requirements, but TI designates the automotive-qualified variant as LMC7101Q-Q1. For non-safety-critical cabin electronics (e.g., climate sensors, infotainment aux inputs), LMC7101BIM5 is widely deployed - though AEC-Q100 qualification applies only to the Q1 version.
How does LMC7101BIM5 handle capacitive loads?
LMC7101BIM5 can directly drive up to 100pF at unity gain with 15V supply without oscillation. For larger capacitive loads (e.g., ADC inputs, multiplexers), TI recommends resistive isolation (e.g., 300Ω series resistor) as shown in Figure 7-1 of SBOSAL2 - preserving stability while maintaining signal integrity.
LMC7101BIM5 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:
- 1.1V/µs
- Gain Bandwidth Product:
- 1.1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 110 µV
- Current - Supply:
- 800µA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 15.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMC7101BIM5 FAQ
1.How can I place an order for LMC7101BIM5 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7101BIM5 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 LMC7101BIM5 reliable?
The price and inventory of LMC7101BIM5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7101BIM5 is usually 5 days.
3.What payment methods are accepted for LMC7101BIM5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7101BIM5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7101BIM5?
LMC7101BIM5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7101BIM5 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 LMC7101BIM5?
For technical support, including LMC7101BIM5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7101BIM5 requirements.
6.How does Aetrix verify that LMC7101BIM5 is sourced from the original manufacturer or authorized distributors?
All LMC7101BIM5 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 LMC7101BIM5 meets industry standards.
7.What is the process for return or replacement of LMC7101BIM5?
All LMC7101BIM5 units undergo pre-shipment inspection (PSI). If there is an issue with LMC7101BIM5, 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 LMC7101BIM5 part is unused and in its original packaging.
Return procedure for LMC7101BIM5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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