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Texas Instruments LMC6462BIM/NOPB
- Part No.:
- LMC6462BIM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMC6462BIM/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,797
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Product details
Overview
LMC6462BIM/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 typical 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 single supply - enabling high-accuracy signal conditioning in portable medical sensors and transducer interfaces.
For engineers reviewing the LMC6462BIM/NOPB datasheet, LMC6462BIM/NOPB pinout, LMC6462BIM/NOPB application, or LMC6462BIM/NOPB equivalent, key selection criteria include ultra-low input bias current (150 fA), guaranteed 3V/5V operation, input common-mode range extending 0.1 V beyond rails, and compatibility with high-impedance sensor front-ends requiring minimal loading error.
Technical Context
The LMC6462BIM/NOPB employs a CMOS input stage enabling rail-to-rail input common-mode voltage range (−0.1 V to VS + 0.1 V at 5 V) and ultra-low input current (150 fA). Its output stage supports rail-to-rail swing into 25 kΩ loads, with sourcing/sinking capability up to ±27 mA 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. Input-referred voltage noise is 80 nV/√Hz at 1 kHz, and it achieves 10 TΩ input resistance - critical for photodiode and piezoelectric transducer interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 40 μA per amplifier (typical at 5 V) - enables >1-year battery life in 3 V coin-cell systems |
| Input Offset Voltage | 0.25 mV (typical) - reduces DC error in precision gain stages without trimming |
| CMRR | 85 dB (min, 0–5 V VCM, 5 V supply) - rejects power supply ripple and EMI in noisy environments |
| Output Swing | Within 10 mV of rails (VS = 5 V, RL = 25 kΩ) - maximizes dynamic range in single-supply data acquisition |
| Input Bias Current | 150 fA (typical) - prevents signal loss in >1 GΩ sensor interfaces like pH electrodes |
| Gain-Bandwidth Product | 50 kHz - sufficient for DC–10 kHz sensor amplification with stable unity-gain compensation |
| Common-Mode Range | −0.1 V to 5.3 V (at 5 V supply) - accepts inputs below ground or above VCC without phase reversal |
Pinout & Package
LMC6462BIM/NOPB is housed in an 8-pin SOIC (Package Drawing D), with thermal resistance θJA = 193°C/W. The package is RoHS-compliant, green, and rated for −40°C to +85°C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (A1) | High-impedance node for feedback networks; requires guard ring layout to preserve 150 fA input current spec |
| 2 | Non-Inverting Input (A1) | Accepts signals from −0.1 V to 5.3 V at 5 V supply; immune to phase inversion beyond rails |
| 3 | Output (A1) | Rail-to-rail capable; drives 25 kΩ loads to within 10 mV of VCC/GND; max ±27 mA short-circuit current |
| 4 | V− (Ground) | Reference for single-supply operation; connects to system ground plane with low-inductance path |
| 5 | Non-Inverting Input (A2) | Independent second channel input; identical specs to Pin 2 - enables dual-channel instrumentation |
| 6 | Inverting Input (A2) | Matches Pin 1 performance; supports matched dual feedback networks for differential amplifiers |
| 7 | Output (A2) | Independent second output; same rail-to-rail swing and load drive as Pin 3 |
| 8 | V+ | Positive supply rail (3.0–15.5 V); decoupling capacitor (0.1 μF ceramic) required within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 40 μA per amplifier at 5 V - cuts quiescent power to 200 μW, extending battery life in portable devices |
| Rail-to-rail input range | Extends 0.1 V beyond both supply rails - eliminates level-shifting circuits for bipolar sensor outputs |
| 150 fA input bias current | Enables direct connection to high-Z sources (e.g., glass pH electrodes, photodiodes) without signal attenuation |
| 85 dB CMRR at 5 V | Maintains accuracy in industrial settings where common-mode noise exceeds 100 mV |
| Guaranteed 3 V operation | Ensures functionality down to depleted battery voltage (e.g., 3.0 V alkaline), avoiding brownout resets |
Applications
| Battery Monitoring | Medical Sensor Interface |
|---|---|
Use Scenario: Precision measurement of cell voltage and leakage current in multi-cell Li-ion packs. IC Role / Device Role / Timing Role: Dual op-amp configured as differential voltage monitor and high-impedance current sense amplifier. Use Value: 0.25 mV VOS and 150 fA IB ensure <1 mV total error over full temperature range without calibration. |
Use Scenario: Amplifying microvolt-level EEG or ECG signals from dry-contact electrodes. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with guard-ring PCB layout for ultra-low leakage. Use Value: Rail-to-rail input accommodates electrode offsets up to ±200 mV; 85 dB CMRR rejects 50/60 Hz mains interference. |
| Portable Gas Detector | Low-Power Oscillator |
Use Scenario: Signal conditioning for electrochemical gas sensors with sub-nA output currents. IC Role / Device Role / Timing Role: Transimpedance amplifier converting sensor current to voltage with 10 GΩ feedback resistor. Use Value: 150 fA IB ensures <0.1% gain error with 10 GΩ RF; 3 V operation matches coin-cell supply. |
Use Scenario: Generating 1 Hz square-wave timing signals for duty-cycled sensor sampling. IC Role / Device Role / Timing Role: Comparator-based relaxation oscillator using internal hysteresis and RC timing network. Use Value: 20 μA quiescent current minimizes oscillator's contribution to system standby power budget. |
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 |
|---|---|---|---|
| LMC6482IM/NOPB | Higher supply current (120 μA/amplifier), 1.5 mV VOS, same rail-to-rail I/O | Better speed (1.5 MHz GBW) but higher power - suitable when bandwidth >100 kHz required | Select LMC6462BIM/NOPB for sub-100 μA systems; choose LMC6482IM/NOPB only if 50 kHz GBW is insufficient |
| TLV2462IDR | 65 μA/amplifier, 2.5 mV VOS, 1.2 V minimum supply, no guaranteed 3 V specs | Lower voltage operation (1.2–6 V) but degraded CMRR (70 dB) and higher VOS at 3 V | Prefer LMC6462BIM/NOPB for 3 V battery systems demanding <0.5 mV offset and 85 dB CMRR |
Compared with LMC6482IM/NOPB and TLV2462IDR, the LMC6462BIM/NOPB uniquely combines 20 μA supply current, 0.25 mV VOS, and 85 dB CMRR at 3 V - making it the only option meeting all three specs simultaneously for long-life portable instrumentation.
Availability
LMC6462BIM/NOPB is available at Aetrix Electronics and suitable for battery monitoring, medical sensor interface, portable gas detection, and low-power oscillator applications requiring stable component supply across industrial and medical OEM programs.
Supply support for LMC6462BIM/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 specializing in analog and embedded processing technologies, with decades of expertise in precision op-amps and low-power signal chains.
The LMC6462BIM/NOPB belongs to TI's micropower rail-to-rail op-amp family, designed specifically for energy-constrained applications including portable medical devices, battery-operated sensors, and handheld test equipment.
FAQ
What is the maximum supply voltage for LMC6462BIM/NOPB?
The absolute maximum supply voltage (V+ − V−) for LMC6462BIM/NOPB is 16 V, with recommended operating range from 3.0 V to 15.5 V. Operation at 15.5 V is validated per datasheet specifications, and thermal limits must be observed - junction temperature must not exceed 150°C under continuous load conditions. The LMC6462BIM/NOPB maintains rail-to-rail output swing and 85 dB CMRR up to 15 V supply.
Does LMC6462BIM/NOPB support true rail-to-rail input beyond the supply rails?
Yes, LMC6462BIM/NOPB supports input voltages up to 0.1 V beyond both supply rails - for example, −0.1 V to 5.3 V when V+ = 5 V and V− = 0 V. This rail-to-rail input common-mode range is specified and tested, preventing phase inversion even when inputs exceed supplies, as confirmed in Figure 33 of the SNOS725D datasheet.
Can LMC6462BIM/NOPB drive capacitive loads directly?
LMC6462BIM/NOPB can typically drive up to 200 pF capacitively at unity gain (5 V supply) without oscillation. For larger loads (e.g., 300 pF), resistive isolation (e.g., 10–100 Ω series resistor) or feedback compensation (e.g., R1/C1 network per Figure 38) is required to maintain phase margin and prevent ringing. Direct capacitive loading degrades stability due to output impedance interaction.
What is the guaranteed input offset voltage specification for LMC6462BIM/NOPB?
The LMC6462BIM/NOPB has a maximum input offset voltage of 0.5 mV over temperature (−40°C to +85°C) per the BI grade specification. At room temperature (25°C), typical VOS is 0.25 mV, and the datasheet guarantees ≤0.5 mV for all units in the BI temperature grade - critical for uncalibrated precision amplification in medical and sensor applications.
Is LMC6462BIM/NOPB suitable for photodiode transimpedance applications?
Yes, LMC6462BIM/NOPB is well-suited for photodiode transimpedance amplifiers due to its 150 fA typical input bias current, 10 TΩ input resistance, and low input capacitance (3 pF). These parameters minimize dark-current error and noise gain peaking. Layout best practices - including guard rings and short traces - are essential to preserve the 150 fA spec in production designs.
LMC6462BIM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LMC6462BIM/NOPB FAQ
1.How can I place an order for LMC6462BIM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6462BIM/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 LMC6462BIM/NOPB reliable?
The price and inventory of LMC6462BIM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6462BIM/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6462BIM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6462BIM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6462BIM/NOPB?
LMC6462BIM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6462BIM/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 LMC6462BIM/NOPB?
For technical support, including LMC6462BIM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6462BIM/NOPB requirements.
6.How does Aetrix verify that LMC6462BIM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6462BIM/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 LMC6462BIM/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6462BIM/NOPB?
All LMC6462BIM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6462BIM/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 LMC6462BIM/NOPB part is unused and in its original packaging.
Return procedure for LMC6462BIM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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