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Texas Instruments LMC6462AIN/NOPB
- Part No.:
- LMC6462AIN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LMC6462AIN/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,157
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Product details
Overview
LMC6462AIN/NOPB from Texas Instruments is a dual micropower rail-to-rail input and output CMOS operational amplifier optimized for low-voltage, battery-powered systems. It delivers 20 μA/amplifier supply current, 0.25 mV input offset voltage, 85 dB CMRR at 5V, rail-to-rail output swing within 10 mV of rails (RL = 25 kΩ), and operates from 3.0 V to 15.5 V supply. It serves as a precision signal conditioner in transducer interfaces and portable medical sensors.
For engineers reviewing the LMC6462AIN/NOPB datasheet, LMC6462AIN/NOPB pinout, LMC6462AIN/NOPB application, or LMC6462AIN/NOPB equivalent, key selection criteria include ultra-low input bias current (150 fA), guaranteed 3V/5V operation, input common-mode range extending beyond rails, and compatibility with high-impedance sensor front-ends requiring minimal loading error.
Technical Context
The LMC6462AIN/NOPB employs a CMOS input stage enabling rail-to-rail input common-mode voltage range (–0.2 V to V+ + 0.3 V) and ultra-low input current (150 fA typical). Its output stage supports rail-to-rail swing into 25 kΩ loads, with sourcing/sinking output resistance of 110 Ω / 83 Ω at 5 V.
It features 50 kHz gain-bandwidth product, 15 V/ms slew rate (5 V), and maintains 85 dB CMRR across 0–5 V common-mode range. The device is specified over –40°C to +85°C and supports single-supply operation down to 3 V with only 60 μW per amplifier quiescent power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 15.5 V - Enables direct integration into 3.3 V, 5 V, and 12 V systems without level-shifting. |
| Supply Current per Amplifier | 40 μA typical at 5 V - Enables multi-year battery life in always-on sensor nodes and portable diagnostics. |
| Input Offset Voltage | 0.25 mV max at 25°C, 5 V - Ensures ≤0.25 mV DC error in precision gain stages without trimming. |
| Input Bias Current | 150 fA typical - Minimizes voltage error across >100 MΩ source impedances (e.g., pH electrodes, photodiodes). |
| CMRR | 85 dB min (0–5 V VCM, 5 V supply) - Rejects supply ripple and noise in single-supply instrumentation amplifiers. |
| Rail-to-Rail Output Swing | Within 10 mV of rails (RL = 25 kΩ, 5 V) - Maximizes dynamic range in low-voltage ADC driver applications. |
| Gain-Bandwidth Product | 50 kHz - Supports stable unity-gain buffering and low-frequency filtering up to ~5 kHz. |
Pinout & Package
LMC6462AIN/NOPB is housed in an 8-pin PDIP (Plastic Dual In-line Package) with 0.3-inch body width and standard through-hole footprint. Pin spacing is 0.1 inch; lead finish is matte tin (Sn), RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance node accepting differential input signals; requires guard ring layout for <1 pA leakage. |
| 2 | Non-Inverting Input (Amplifier A) | Accepts reference or sensor signal; common-mode range extends 0.2 V beyond negative rail. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±27 mA (5 V); swing limited by load impedance and supply headroom. |
| 4 | Negative Supply (V−) | Ground reference in single-supply mode; must be tied to system GND or negative rail in split-supply designs. |
| 5 | Non-Inverting Input (Amplifier B) | Independent second channel input; identical electrical specs to Pin 2. |
| 6 | Inverting Input (Amplifier B) | Second channel inverting input; supports independent feedback networks per amplifier. |
| 7 | Output (Amplifier B) | Second rail-to-rail output; usable for dual-channel signal conditioning or active filtering. |
| 8 | Positive Supply (V+) | Accepts 3.0–15.5 V; internal ESD protection rated to 2.0 kV HBM; decoupling capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 150 fA typical enables accurate measurement from high-Z sources like ion-selective electrodes and piezoresistive sensors. |
| Rail-to-rail input common-mode range | Extends 0.2 V beyond both supply rails - eliminates need for level-shifting in single-supply transducer interfaces. |
| Guaranteed 3 V and 5 V operation | Full DC/AC specs validated at both voltages - simplifies design reuse across battery and line-powered variants. |
| Low quiescent power | 60 μW per amplifier at 3 V - extends runtime in coin-cell–powered devices such as wearable biosensors. |
| High CMRR and PSRR | 85 dB CMRR and ≥80 dB PSRR minimize error from supply noise and ground bounce in mixed-signal PCBs. |
Applications
| Battery Monitoring | Portable Medical Sensors |
|---|---|
Use Scenario: Precision measurement of cell voltage and current in lithium-ion battery packs using high-resistance divider networks and shunt resistors. IC Role / Device Role / Timing Role: Dual op-amp configured as differential amplifier (Channel A) and current-sense buffer (Channel B), operating from 3.3 V supply. Use Value: 150 fA input current prevents loading errors on 10 MΩ+ voltage dividers; 0.25 mV offset ensures ≤0.5% full-scale error in 2 V range. |
Use Scenario: Signal conditioning for electrochemical glucose sensors and ECG front-ends in handheld diagnostic devices. IC Role / Device Role / Timing Role: First-stage amplifier for low-level transducer outputs, providing rail-to-rail input range and ultra-low noise (<80 nV/√Hz). Use Value: Rail-to-rail input accepts sensor outputs near ground or supply; 20 μA/quiescent current enables continuous monitoring on CR2032 cells. |
| Transducer Interface Circuits | Low-Power Instrumentation Amplifiers |
Use Scenario: Amplification of millivolt-level outputs from strain gauges, thermopiles, and RTDs in industrial IoT nodes. IC Role / Device Role / Timing Role: Dual op-amp used in two-op-amp IA topology (Figure 49), with external gain-setting resistor. Use Value: 85 dB CMRR rejects common-mode noise from long sensor cables; 3 V operation matches energy-harvesting PMIC outputs. |
Use Scenario: Building compact, low-power 3-op-amp instrumentation amplifiers for portable gas analyzers and environmental monitors. IC Role / Device Role / Timing Role: Two LMC6462AIN/NOPB units provide three matched amplifiers (two for input buffers, one for output stage) in discrete IA design. Use Value: Matched VOS drift (1.5 μV/°C) and input bias current ensure stable gain and offset over temperature without calibration. |
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 |
|---|---|---|---|
| LMC6482AIM/NOPB | Higher supply current (120 μA/amplifier), higher GBW (1.5 MHz), same rail-to-rail I/O, but not specified below 4.5 V. | Better for AC-coupled sensor interfaces requiring >10 kHz bandwidth; unsuitable for sub-3.6 V battery operation. | Select LMC6462AIN/NOPB when supply is ≤3.6 V or quiescent current <50 μA is mandatory. |
| TLV2462CDR | Lower input bias current (1 pA), 100 μA supply current, 6.4 MHz GBW, but input common-mode range limited to V− to V+ − 1.5 V. | Preferred for higher-speed precision buffers; cannot accept inputs near V+ without phase inversion. | Choose TLV2462CDR only if bandwidth >100 kHz is needed and input signals stay ≥1.5 V below V+. |
Compared with LMC6462AIN/NOPB, LMC6482AIM/NOPB trades 6× higher current for 30× more bandwidth and reduced low-frequency noise, while TLV2462CDR offers superior speed and pA-level input current but sacrifices rail-to-rail input capability and micropower operation.
Availability
LMC6462AIN/NOPB is available at Aetrix Electronics and suitable for battery-operated circuits, transducer interface circuits, and portable communication devices requiring stable component supply across extended production lifecycles.
Supply support for LMC6462AIN/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 leader delivering analog and embedded processing solutions, with over 50 years of op-amp innovation and broad portfolio coverage from precision to high-speed.
The LMC6462AIN/NOPB belongs to TI's micropower precision op-amp family, designed specifically for ultra-low-power, high-accuracy signal conditioning in battery-constrained and high-impedance sensor applications.
FAQ
What is the maximum supply voltage for LMC6462AIN/NOPB?
The absolute maximum supply voltage (V+ − V−) for LMC6462AIN/NOPB is 16 V, with recommended operating range from 3.0 V to 15.5 V. Operation above 15.5 V risks parametric degradation or permanent damage, especially under elevated temperature conditions.
Does LMC6462AIN/NOPB support true rail-to-rail input at 3 V supply?
Yes, LMC6462AIN/NOPB guarantees rail-to-rail input common-mode voltage range at 3 V supply, with VCM extending from –0.10 V to 3.0 V (for CMRR ≥50 dB). This allows direct interfacing with sensors whose output swings to ground or near V+.
Can LMC6462AIN/NOPB drive capacitive loads?
LMC6462AIN/NOPB can directly drive up to 200 pF at unity gain (5 V supply) without oscillation. For larger capacitive loads (e.g., ADC inputs), use resistive isolation (e.g., 100 Ω series resistor) or feedback compensation as shown in Figure 38 of the datasheet.
What is the thermal resistance (θJA) of the LMC6462AIN/NOPB PDIP package?
The LMC6462AIN/NOPB in 8-pin PDIP (Package P) has a thermal resistance θJA of 115°C/W when soldered to a standard FR-4 PCB with JEDEC-standard copper area. Junction temperature must remain ≤150°C under all operating conditions.
Is LMC6462AIN/NOPB suitable for use as a comparator?
Yes, LMC6462AIN/NOPB can function as a micropower comparator with hysteresis (e.g., Figure 51), leveraging its 20 μA supply current and rail-to-rail output. However, it lacks internal speed optimization - propagation delay is ~100 μs, making it suitable only for low-frequency threshold detection.
LMC6462AIN/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LMC6462AIN/NOPB FAQ
1.How can I place an order for LMC6462AIN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6462AIN/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 LMC6462AIN/NOPB reliable?
The price and inventory of LMC6462AIN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6462AIN/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6462AIN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6462AIN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6462AIN/NOPB?
LMC6462AIN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6462AIN/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 LMC6462AIN/NOPB?
For technical support, including LMC6462AIN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6462AIN/NOPB requirements.
6.How does Aetrix verify that LMC6462AIN/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6462AIN/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 LMC6462AIN/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6462AIN/NOPB?
All LMC6462AIN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6462AIN/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 LMC6462AIN/NOPB part is unused and in its original packaging.
Return procedure for LMC6462AIN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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