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Texas Instruments LMC7101AIM5
- Part No.:
- LMC7101AIM5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMC7101AIM5.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,004
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Product details
Overview
LMC7101AIM5 from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier in a 5-pin SOT-23 package. It delivers 1 MHz gain bandwidth, 0.5 mA quiescent current at 5 V, 0.01% THD at 10 kHz, and operates across –40°C to +85°C industrial temperature range - ideal for space-constrained, battery-powered sensor interface circuits.
For engineers reviewing the LMC7101AIM5 datasheet, LMC7101AIM5 pinout, LMC7101AIM5 application, or LMC7101AIM5 equivalent, key selection criteria include rail-to-rail swing capability at low supply current, input offset voltage stability over temperature, SOT-23 thermal resistance (RθJA = 193.5°C/W), and compatibility with 2.7 V to 15 V single-supply operation.
Technical Context
The LMC7101AIM5 uses a high-input-impedance CMOS input stage (>1 TΩ) with rail-to-rail input common-mode range extending 300 mV beyond either supply rail and output swing within 180 mV of rails (at 2 kΩ load, 5 V). Its open-loop gain exceeds 80 V/mV (typical), enabling precision closed-loop configurations with minimal error contribution from AOL roll-off.
It features low input bias current (±1 pA typ), ultra-low input offset voltage drift (1 µV/°C), and robust capacitive load tolerance up to 100 pF without oscillation in unity-gain follower configuration - supported by internal compensation optimized for wide supply voltage operation (2.7 V to 15 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 15 V single supply - supports direct integration into portable, automotive, and industrial systems with variable rail voltages. |
| Gain Bandwidth Product | 1 MHz at 5 V - enables stable unity-gain buffer or noninverting amplification up to ~100 kHz with 10× gain. |
| Quiescent Current | 0.5 mA typical at 5 V - reduces power dissipation in high-density PCBs and extends battery life in portable devices. |
| Input Offset Voltage | ±0.11 mV (A-grade) - ensures <10 µV error in precision DC-coupled sensor signal conditioning at room temperature. |
| THD + N | 0.01% at 10 kHz, 5 V supply, 10 kΩ load - meets audio-grade linearity requirements for low-frequency analog front-ends. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and automotive under-hood environments without derating. |
| Input Bias Current | ±1 pA typical - minimizes voltage drop across high-impedance sources (e.g., photodiodes, pH electrodes). |
Pinout & Package
LMC7101AIM5 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9 mm × 2.8 mm × 1.43 mm - optimized for minimal board area and low profile in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified signal node; capable of sourcing/sinking up to 24 mA (short-circuit limited); rail-to-rail swing depends on load impedance. |
| 2 (V+) | Power | Positive supply terminal; accepts 2.7 V to 15 V; decoupling capacitor recommended near pin for stability. |
| 3 (+IN) | Input | Noninverting input; rail-to-rail common-mode range supports direct connection to sensors operating near supply rails. |
| 4 (−IN) | Input | Inverting input; matched to +IN for balanced differential operation; high CMRR (≥70 dB) maintains accuracy with common-mode noise. |
| 5 (V−) | Power | Negative supply terminal; tied to ground in single-supply configurations; must be referenced to system GND for proper biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage systems (e.g., 3 V microcontroller ADC reference buffers) without level-shifting circuitry. |
| 0.5 mA quiescent current at 5 V | Reduces self-heating in dense layouts and allows use in always-on sensor nodes with multi-year battery life. |
| 1 µV/°C input offset drift | Minimizes calibration frequency in temperature-varying applications such as automotive cabin sensors or industrial process monitors. |
| 100 pF capacitive load drive capability | Eliminates need for external isolation resistors when driving multiplexer inputs or ADC sample-and-hold capacitors directly. |
| 1 TΩ input resistance | Preserves signal integrity from ultra-high-impedance sources like piezoelectric transducers or electrochemical cells. |
Applications
| Mobile Communications | Sensor Interface |
|---|---|
Use Scenario: Signal conditioning for RF front-end bias control, microphone preamplification, and power amplifier feedback in GSM/UMTS handsets. IC Role / Device Role / Timing Role: Rail-to-rail op-amp configured as unity-gain buffer or transimpedance amplifier for low-noise analog signal routing. Use Value: 0.01% THD ensures clean audio path; 0.5 mA IQ extends talk-time; SOT-23 footprint saves >50% board area vs SOIC-8 alternatives. | Use Scenario: Amplifying low-level outputs from thermistors, strain gauges, and MEMS accelerometers in wearable health monitors. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with high input impedance and low offset drift for accurate analog-to-digital conversion. Use Value: ±0.11 mV max offset (A-grade) and 1 µV/°C drift reduce system calibration overhead; rail-to-rail swing maximizes ADC utilization. |
| Notebooks and PDAs | Battery-Powered Products |
Use Scenario: Touchscreen controller analog front-end, lid-open detection, and battery voltage monitoring in ultraportable computing devices. IC Role / Device Role / Timing Role: Low-power comparator alternative or precision reference buffer for ADC reference rails and voltage dividers. Use Value: 2.7 V minimum supply enables operation during deep battery discharge; 193.5°C/W RθJA prevents thermal throttling in confined chassis spaces. | Use Scenario: Power management supervision, battery fuel gauging, and LED driver current sensing in wireless earbuds and IoT edge nodes. IC Role / Device Role / Timing Role: Current-sense amplifier or voltage supervisor with rail-to-rail input to monitor Li-ion cell voltage across full 2.7–4.2 V range. Use Value: 15 V absolute max rating protects against transient overvoltage; 0.5 mA IQ enables continuous monitoring without compromising standby time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMC6482IMX | Dual-channel SOIC-8; higher IQ (1.2 mA), wider GBW (1.5 MHz), no SOT-23 option | Requires PCB redesign for dual-channel needs; unsuitable for ultra-compact single-amplifier placements | Select when dual amplifiers are needed and board area is less constrained than for LMC7101AIM5. |
| TLV2461CDCKR | Single-channel SOT-23-5; higher IQ (600 µA), lower THD (0.003%), but narrower supply range (2.7–6 V) | Limited to ≤6 V systems; not suitable for 12/15 V industrial or automotive supplies where LMC7101AIM5 operates reliably | Prefer for ultra-low-distortion audio paths below 6 V; avoid if 15 V operation or extended temperature range is required. |
Compared with LMC6482IMX and TLV2461CDCKR, the LMC7101AIM5 uniquely balances ultra-small footprint, 2.7–15 V supply flexibility, and sub-1 mV offset in a single-channel SOT-23 - making it optimal for space-limited, multi-rail embedded systems where channel count and voltage range outweigh marginal THD improvements.
Availability
LMC7101AIM5 is available at Aetrix Electronics and suitable for mobile communications, sensor interface, and battery-powered products requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for LMC7101AIM5 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 conditioning.
The LMC7101AIM5 belongs to TI's LMC7101 family of tiny, rail-to-rail CMOS op-amps designed specifically for space- and power-constrained portable electronics, automotive subsystems, and industrial sensor nodes.
FAQ
What is the maximum supply voltage rating for the LMC7101AIM5?
The LMC7101AIM5 has an absolute maximum supply voltage (VS) of 16 V, with recommended operation from 2.7 V to 15.5 V. Exceeding 16 V risks permanent damage per Absolute Maximum Ratings. At 15 V operation, it delivers 1.1 MHz GBW and 0.8–1.5 mA quiescent current - confirming robust performance across its full rated range. Always observe layout best practices including local 0.1 µF ceramic decoupling at the V+ pin for reliable LMC7101AIM5 operation.
Does the LMC7101AIM5 support true rail-to-rail input and output operation?
Yes, the LMC7101AIM5 supports rail-to-rail input common-mode voltage range extending 300 mV beyond both supply rails and rail-to-rail output swing - delivering ≥4.7 V output at 2 kΩ load with 5 V supply, and ≥14.4 V with 15 V supply. This is enabled by its CMOS input stage and complementary output stage. Input phase inversion is absent even when signals exceed rails, verified in Figure 6-1 of the LMC7101AIM5 datasheet - critical for sensor interfaces where transients may exceed nominal supply levels.
What is the typical input offset voltage and drift specification for the LMC7101AIM5?
The LMC7101AIM5 (A-grade) has a typical input offset voltage of ±0.11 mV at 25°C and maximum of ±3 mV over –40°C to +85°C. Its input offset voltage drift is specified at 1 µV/°C - among the lowest in its class - ensuring minimal drift-induced error in precision DC applications like strain gauge amplification. These values are measured under standard conditions (VS = 5 V, RL > 1 MΩ) and confirmed across multiple production lots per TI's LMC7101AIM5 characterization data.
Can the LMC7101AIM5 drive capacitive loads without external compensation?
Yes, the LMC7101AIM5 can directly drive up to 100 pF capacitive loads at unity gain with 15 V supply without oscillation, as validated in typical characteristics (Figure 5-34–5-35). For larger loads (e.g., >330 pF ADC inputs), TI recommends resistive isolation (e.g., 300 Ω series resistor) as shown in Figure 7-1 of the LMC7101AIM5 datasheet. This capability simplifies design in data acquisition systems where the LMC7101AIM5 buffers signals before multiplexers or SAR ADCs.
Is the LMC7101AIM5 suitable for automotive applications?
The commercial-grade LMC7101AIM5 is specified for –40°C to +85°C and used in many automotive infotainment and body electronics modules. However, for ASIL-compliant or AEC-Q100 qualified applications, TI offers the automotive-grade LMC7101Q-Q1 variant. The LMC7101AIM5 itself is not AEC-Q100 certified, so designers requiring formal automotive qualification must select LMC7101Q-Q1 instead - though electrical performance, pinout, and SOT-23 package remain identical between LMC7101AIM5 and LMC7101Q-Q1.
LMC7101AIM5 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
LMC7101AIM5 FAQ
1.How can I place an order for LMC7101AIM5 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7101AIM5 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 LMC7101AIM5 reliable?
The price and inventory of LMC7101AIM5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7101AIM5 is usually 5 days.
3.What payment methods are accepted for LMC7101AIM5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7101AIM5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7101AIM5?
LMC7101AIM5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7101AIM5 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 LMC7101AIM5?
For technical support, including LMC7101AIM5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7101AIM5 requirements.
6.How does Aetrix verify that LMC7101AIM5 is sourced from the original manufacturer or authorized distributors?
All LMC7101AIM5 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 LMC7101AIM5 meets industry standards.
7.What is the process for return or replacement of LMC7101AIM5?
All LMC7101AIM5 units undergo pre-shipment inspection (PSI). If there is an issue with LMC7101AIM5, 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 LMC7101AIM5 part is unused and in its original packaging.
Return procedure for LMC7101AIM5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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