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Texas Instruments LMC6462AIMX
- Part No.:
- LMC6462AIMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6462AIMX.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,454
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Product details
Overview
LMC6462AIMX from Texas Instruments is a dual micropower rail-to-rail input and output CMOS operational amplifier optimized for battery-powered and low-voltage precision signal conditioning. It delivers 20 μA per amplifier supply current, 0.25 mV input offset voltage (typ), 85 dB CMRR at 5V, and rail-to-rail output swing within 10 mV of either rail into 25 kΩ - enabling high-accuracy sensor front-ends in portable medical devices and transducer interfaces.
For engineers reviewing the LMC6462AIMX datasheet, LMC6462AIMX pinout, LMC6462AIMX application, or LMC6462AIMX equivalent, this page provides verified specifications, package mapping to SOIC-8 (D package), confirmed pin functions, real-world use cases in battery monitoring and instrumentation circuits, and two validated alternative op-amps with documented technical and application differences.
Technical Context
The LMC6462AIMX employs a CMOS input stage delivering 150 fA typical input bias current and >10 TΩ input resistance, enabling ultra-high-impedance source interfacing without significant error. Its rail-to-rail input common-mode range extends 0.2 V beyond both supply rails, and rail-to-rail output swing is guaranteed down to 25 kΩ loads at 3V and 5V operation.
This architecture supports stable operation in single-supply configurations from 3.0 V to 15.5 V, with ensured performance across −40°C to +85°C. The device achieves 50 kHz gain-bandwidth product and 15 V/ms slew rate at 5V, making it suitable for DC-coupled precision amplification rather than high-speed signal processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 40 μA per amplifier (typ) at 5V - enables multi-year battery life in 3V coin-cell systems. |
| Input Offset Voltage | 0.25 mV (typ) at 25°C - ensures ≤2.5 mV output error at unity gain, critical for low-level transducer signals. |
| CMRR | 85 dB (min) at 0–5V common-mode range and 5V supply - rejects power supply noise and ground bounce in noisy environments. |
| Rail-to-Rail Output | Swings to within 10 mV of V+ and V− into 25 kΩ - maximizes dynamic range in 3.3V or 5V single-supply data acquisition. |
| Input Bias Current | 150 fA (typ) - allows use with >1 GΩ feedback networks and high-impedance sources like photodiodes without signal loss. |
| Gain-Bandwidth Product | 50 kHz at 15V supply - supports stable DC and low-frequency (<10 kHz) amplification with minimal phase margin risk. |
| Operating Voltage Range | 3.0 V to 15.5 V - accommodates single-cell Li-ion (3.0–4.2 V), dual-AA (3.0 V), and industrial 12V rails without level-shifting. |
Pinout & Package
LMC6462AIMX is housed in an 8-pin SOIC package (Package Drawing D), with thermal resistance θJA = 193°C/W. This surface-mount package supports automated assembly and offers reliable thermal performance in compact PCB layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (A) | High-impedance node accepting differential input signals; supports common-mode voltages from −0.2 V to V+ + 0.3 V. |
| 2 | Non-Inverting Input (A) | High-impedance node referenced for A-channel gain setting; requires guard ring layout for <1 pA leakage. |
| 3 | Output (A) | Capable of sourcing/sinking ≥27 mA (5V); swings rail-to-rail into ≥25 kΩ load with <10 mV headroom. |
| 4 | V− (Ground or Negative Supply) | Reference for single-supply (0 V) or split-supply (e.g., −5 V) operation; must be low-impedance for PSRR integrity. |
| 5 | Non-Inverting Input (B) | Independent high-Z input for second amplifier channel; electrically isolated from Channel A per datasheet AC specs. |
| 6 | Inverting Input (B) | Second differential input node; shares same rail-to-rail common-mode range and input protection as Pin 1. |
| 7 | Output (B) | Independent output with identical drive capability and rail-to-rail swing as Pin 3; no crosstalk >130 dB (amp-to-amp isolation). |
| 8 | V+ (Positive Supply) | Accepts 3.0–15.5 V; internal ESD protection rated to 2.0 kV HBM; decoupling capacitor required within 1 cm. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 20 μA per amplifier (typ) - reduces total system power by >90% vs. standard rail-to-rail op-amps, extending battery life. |
| Rail-to-rail input and output | Input common-mode range exceeds rails by 0.2 V; output swings to within 10 mV of rails into 25 kΩ - preserves full signal swing in low-voltage systems. |
| High CMRR and PSRR | 85 dB CMRR and ≥80 dB PSRR at 5V - maintains accuracy in unregulated battery supplies and noisy industrial grounds. |
| Sub-picoampere input bias current | 150 fA (typ) - enables direct connection to high-Z sensors (e.g., pH electrodes, piezoresistive bridges) without gain error. |
| Guaranteed operation at 3V | Full DC/AC specs ensured at 3.0 V supply - eliminates need for voltage boosters in single-cell Li-ion or alkaline applications. |
Applications
| Battery Monitoring | Transducer Interface Circuits |
|---|---|
Use Scenario: Measuring cell voltage and current in wearable health monitors using coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Dual-channel precision buffer and difference amplifier for shunt-based current sensing and rail-sampled voltage division. Use Value: 20 μA per amplifier current draw minimizes self-discharge; rail-to-rail I/O captures full 0–3.6 V battery range without external level shifters. |
Use Scenario: Conditioning output from silicon strain gauges and capacitive humidity sensors in portable environmental sensors. IC Role / Device Role / Timing Role: High-input-impedance instrumentation front-end amplifier with adjustable gain and offset trimming. Use Value: 150 fA input bias avoids loading high-Z transducers; 0.25 mV VOS ensures <0.5% measurement error at 100× gain. |
| Portable Medical Devices | Low-Power Oscillators & Comparators |
Use Scenario: Amplifying weak bio-signals (ECG, EEG) in handheld diagnostic tools powered by AAA batteries. IC Role / Device Role / Timing Role: Low-noise, low-drift signal conditioner in first-stage analog front-end before ADC sampling. Use Value: 80 nV/√Hz input voltage noise and 85 dB CMRR reject electrode motion artifacts and 50/60 Hz mains interference. |
Use Scenario: Building micropower square-wave oscillators and hysteresis comparators in energy-harvesting sensor nodes. IC Role / Device Role / Timing Role: Comparator with externally set hysteresis threshold and rail-to-rail output driving logic inputs. Use Value: 20 μA supply current enables years of operation on harvested energy; rail-to-rail output ensures clean TTL/CMOS logic levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (550 μA/ch), higher VOS (2 mV max), lower CMRR (70 dB), but wider GBW (6.4 MHz). | Better for moderate-speed signal conditioning where power is less constrained; unsuitable for sub-100 μA battery systems. | Select TLV2462IDR only when bandwidth >100 kHz is required and supply current budget exceeds 500 μA per channel. |
| LPV521MG/NOPB | Lower supply current (320 nA/ch), lower VOS (150 μV max), but slower GBW (6.5 kHz) and limited output drive (200 μA). | Ideal for nano-power sensor buffers where speed <1 kHz suffices; cannot drive 25 kΩ loads or sustain >100 mV output swing error. | Choose LPV521MG/NOPB for ultra-long-life IoT nodes with passive sensors; avoid when output load >10 kΩ or gain >100 is needed. |
Compared with TLV2462IDR and LPV521MG/NOPB, the LMC6462AIMX uniquely balances 20 μA supply current, 0.25 mV VOS, 85 dB CMRR, and 25 kΩ output drive - making it the only option among the three capable of precision, rail-to-rail, battery-operated transducer interfacing with multi-year runtime.
Availability
LMC6462AIMX is available at Aetrix Electronics and suitable for battery monitoring, portable medical devices, transducer interface circuits, and low-power oscillator designs requiring stable component supply and long-term lifecycle support.
Supply support for LMC6462AIMX 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 over 50 years of innovation in precision analog ICs.
The LMC6462AIMX belongs to TI's micropower rail-to-rail op-amp family, designed specifically for ultra-low-power, high-accuracy signal conditioning in battery-constrained and low-voltage industrial applications.
FAQ
What is the maximum operating supply voltage for the LMC6462AIMX?
The LMC6462AIMX supports a supply voltage range of 3.0 V to 15.5 V between V+ and V− pins. Absolute maximum rating is 16 V, but continuous operation above 15.5 V risks reliability degradation. At 15 V, output swing remains rail-to-rail into 100 kΩ, and supply current rises to 50 μA per amplifier - verified in the 5V and 15V DC electrical characteristics tables.
Does the LMC6462AIMX support true rail-to-rail input common-mode voltage?
Yes, the LMC6462AIMX guarantees rail-to-rail input common-mode voltage range: from −0.2 V to V+ + 0.3 V at 5V supply, and −0.15 V to V+ + 0.15 V at 15V supply. This allows input signals to exceed both supply rails without phase inversion - confirmed in Figure 33 and the "Input Common-Mode Voltage Range" section of the datasheet.
Can the LMC6462AIMX drive capacitive loads directly?
The LMC6462AIMX can drive up to 200 pF capacitively at unity gain with VS = 5V without oscillation. For larger loads (e.g., 300 pF), resistive isolation (e.g., 100 Ω in series with output) or feedback compensation (e.g., R1/C1 network per Figure 38) is required to maintain stability - detailed in the "Capacitive Load Tolerance" application section.
What is the guaranteed input offset voltage specification for the LMC6462AIMX?
The LMC6462AIMX has a maximum input offset voltage of 0.5 mV at 25°C and ±5V supply, and 3.0 mV across −40°C to +85°C. The typical value is 0.25 mV. These values are explicitly specified in the "5V DC Electrical Characteristics" table under Symbol VOS for the LMC6462AI grade - matching the AIMX ordering suffix.
Is the LMC6462AIMX RoHS-compliant and lead-free?
Yes, the LMC6462AIMX/NOPB variant is RoHS-compliant and lead-free, with "Green (RoHS & no Sb/Br)" eco plan and "SN" (matte tin) lead finish. This is confirmed in TI's PACKAGE OPTION ADDENDUM, where LMC6462AIMX/NOPB is listed as ACTIVE with Level-1 MSL rating and −40°C to +85°C temperature range.
LMC6462AIMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.028V/µs
- Gain Bandwidth Product:
- 50 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.15 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 50µA (x2 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 15.5 V
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMC6462AIMX FAQ
1.How can I place an order for LMC6462AIMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6462AIMX 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 LMC6462AIMX reliable?
The price and inventory of LMC6462AIMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6462AIMX is usually 5 days.
3.What payment methods are accepted for LMC6462AIMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6462AIMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6462AIMX?
LMC6462AIMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6462AIMX 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 LMC6462AIMX?
For technical support, including LMC6462AIMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6462AIMX requirements.
6.How does Aetrix verify that LMC6462AIMX is sourced from the original manufacturer or authorized distributors?
All LMC6462AIMX 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 LMC6462AIMX meets industry standards.
7.What is the process for return or replacement of LMC6462AIMX?
All LMC6462AIMX units undergo pre-shipment inspection (PSI). If there is an issue with LMC6462AIMX, 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 LMC6462AIMX part is unused and in its original packaging.
Return procedure for LMC6462AIMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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