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Texas Instruments LMC6482IN/NOPB
- Part No.:
- LMC6482IN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LMC6482IN/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:423
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Product details
Overview
LMC6482IN/NOPB from Texas Instruments is a dual-channel CMOS rail-to-rail input and output operational amplifier designed for precision signal conditioning in low-voltage, single-supply systems. It delivers 82 dB CMRR, ±20 fA input bias current, rail-to-rail output swing within 20 mV of supply rails (at 100 kΩ load), and operates across 3 V to 15 V supply range - enabling high-accuracy data acquisition front-ends where full-scale analog input utilization is critical.
For engineers reviewing the LMC6482IN/NOPB datasheet, LMC6482IN/NOPB pinout, LMC6482IN/NOPB application, or LMC6482IN/NOPB equivalent, key selection considerations include its ultra-low input current for high-impedance sensor interfacing, guaranteed rail-to-rail common-mode input range extending 300 mV beyond supply rails, specified performance at 3 V/5 V/15 V, and compatibility with 600 Ω loads - all validated over –40°C to +85°C.
Technical Context
The LMC6482IN/NOPB employs a specialized CMOS input stage that avoids phase inversion when inputs exceed supply rails - unlike Bi-FET amplifiers - and maintains stable DC accuracy even with common-mode voltages up to (V–) – 0.25 V and (V+) + 0.25 V. Its output stage sustains rail-to-rail swing down to 600 Ω loads while delivering 1.5 MHz gain-bandwidth and 1.3 V/µs slew rate (at 15 V).
This dual op-amp supports both single-supply (e.g., 3 V, 5 V) and split-supply operation, with input offset voltage drift as low as ±1 µV/°C and PSRR/CMRR consistently ≥67 dB over temperature. Its architecture enables direct replacement of TLC272/TLC277 in legacy designs without layout changes due to identical SOIC-8 pinout and functional interoperability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 15.5 V - supports battery-powered and industrial single-supply systems without level-shifting. |
| Input Bias Current | ±0.02 pA typical - preserves signal integrity in pH sensors, photodiode transimpedance, and high-Z source buffering. |
| CMRR / PSRR | 82 dB min - ensures ≤0.325 LSB error in 12-bit DAQ systems by rejecting power supply and common-mode noise. |
| Output Swing | Within 20 mV of rails at 100 kΩ; 4.7 V high / 0.24 V low at 5 V/2 kΩ - maximizes dynamic range in low-voltage ADC drivers. |
| Gain-Bandwidth | 1.5 MHz - sufficient for anti-aliasing filters, sensor signal conditioning, and medium-speed instrumentation loops. |
| Slew Rate | 1.3 V/µs (15 V) - enables clean 10 kHz sine-wave amplification with <0.01% THD at 8.5 VPP output. |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, medical monitors, and telecom rectifier monitoring. |
Pinout & Package
LMC6482IN/NOPB is packaged in an 8-pin PDIP (Plastic Dual In-line Package) with 0.3-inch body width and through-hole mounting. This package provides robust thermal performance (RθJA = 76.2 °C/W) and mechanical stability for prototyping and legacy PCB designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Output | Amplifier A output - drives external loads up to 600 Ω while maintaining rail-to-rail swing. |
| 2 (−IN A) | Input | Inverting input for channel A - accepts signals from (V−) − 0.25 V to (V+) + 0.25 V without phase inversion. |
| 3 (+IN A) | Input | Noninverting input for channel A - enables high-impedance sensing with ±20 fA leakage. |
| 4 (V−) | Power | Negative supply rail - required for dual-supply operation; tied to GND in single-supply configurations. |
| 5 (+IN B) | Input | Noninverting input for channel B - electrically isolated from channel A; supports independent signal paths. |
| 6 (−IN B) | Input | Inverting input for channel B - shares same rail-to-rail common-mode tolerance as pin 2. |
| 7 (OUT B) | Output | Amplifier B output - identical performance to pin 1; enables dual-channel instrumentation or signal splitting. |
| 8 (V+) | Power | Positive supply rail - supplies both amplifiers; supports 3 V to 15.5 V operation with low quiescent current. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 300 mV beyond both supply rails - eliminates need for input signal attenuation or level-shifting in wide-dynamic-range sensors. |
| Rail-to-rail output swing | Maintained at loads ≥600 Ω - preserves full-scale resolution in 12-bit ADC interfaces without output clipping. |
| Ultra-low input bias current | 20 fA typical - reduces voltage error in high-impedance circuits (e.g., >100 MΩ sources) to <1 µV. |
| High CMRR and PSRR | 82 dB minimum - suppresses supply ripple and common-mode interference in noisy industrial environments. |
| Low-voltage operation | Specified at 3 V, 5 V, and 15 V - simplifies design reuse across portable, automotive, and industrial platforms. |
Applications
| Data Acquisition Systems | Currency Counting Sensors |
|---|---|
|
Use Scenario: Buffering analog outputs from precision ADCs (e.g., ADC12038) in portable test equipment. IC Role / Device Role / Timing Role: Dual-channel rail-to-rail op-amp providing unity-gain buffering with full 0–5 V input/output swing. Use Value: Enables 12-bit integral linearity (±0.325 LSB) via 82 dB CMRR - outperforming 50 dB alternatives limited to 8-bit accuracy. |
Use Scenario: Amplifying microvolt-level signals from optical currency validation sensors. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance amplifier conditioning weak photocurrent signals before digitization. Use Value: ±20 fA input bias current prevents signal loss across high-value feedback resistors used in transimpedance stages. |
| Oscilloscope Front-Ends | Process Analytics (pH/Gas) |
|
Use Scenario: Signal conditioning in handheld digital storage oscilloscopes (DSOs) with 3 V logic supply. IC Role / Device Role / Timing Role: Dual op-amp implementing active probe interface and AC-coupled amplification. Use Value: 1.5 MHz GBW and 1.3 V/µs slew rate support clean 10 kHz waveform reproduction with <0.01% THD. |
Use Scenario: Transducing electrochemical signals from pH electrodes and gas concentration cells. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core with matched resistor networks (e.g., RES11A). Use Value: Rail-to-rail input accommodates wide common-mode offsets (e.g., ±400 mV from reference) without saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272CP | Higher input bias current (1 pA vs 0.02 pA); narrower common-mode range (V− to V+ − 1.5 V); no rail-to-rail output. | Limited to mid-supply signal ranges; unsuitable for low-current sensors or full-scale single-supply DAQ. | Select LMC6482IN/NOPB when ultra-low input current or rail-to-rail swing is required - TLC272CP is only viable for cost-sensitive, non-critical upgrades. |
| OPA2333AIDR | Zero-drift architecture; lower offset (±2 µV vs ±0.75 mV); higher quiescent current (17 µA vs 700 µA per amp). | Better DC accuracy but higher power - preferred in precision thermocouple or strain gauge bridges. | Choose LMC6482IN/NOPB for low-power, wide common-mode, and cost-effective rail-to-rail performance; OPA2333AIDR suits zero-drift-critical applications. |
Compared with TLC272CP and OPA2333AIDR, LMC6482IN/NOPB uniquely balances ultra-low input current, true rail-to-rail I/O, low power (700 µA/amp), and SOIC-8/PDIP-8 pin compatibility - making it optimal for retrofitting legacy designs and new battery-operated instrumentation.
Availability
LMC6482IN/NOPB is available at Aetrix Electronics and suitable for data acquisition systems, currency counting hardware, oscilloscope front-ends, and process analytics instrumentation requiring stable component supply and long-term industrial availability.
Supply support for LMC6482IN/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 signal chain solutions.
The LMC6482IN/NOPB belongs to TI's LMC648x family of rail-to-rail CMOS op-amps, engineered specifically for high-accuracy, low-power signal conditioning in single-supply industrial, medical, and test equipment applications.
FAQ
What is the maximum supply voltage for LMC6482IN/NOPB?
The absolute maximum supply voltage (VS = V+ − V−) for LMC6482IN/NOPB is 16 V, but the recommended operating range is 3 V to 15.5 V. Operation at 15.5 V is fully characterized for parameters including output swing, CMRR, and PSRR - supporting high-dynamic-range applications without derating.
Does LMC6482IN/NOPB support single-supply operation?
Yes, LMC6482IN/NOPB is explicitly designed for single-supply operation - its rail-to-rail input common-mode range extends from (V−) − 0.25 V to (V+) + 0.25 V, and output swings within 20 mV of both rails. At 3 V supply, it delivers 2.8 V high / 0.2 V low swing into 2 kΩ, enabling full-scale signal handling in portable systems.
What is the input bias current specification for LMC6482IN/NOPB?
The input bias current for LMC6482IN/NOPB is ±0.02 pA typical at 25°C, with a maximum of ±4 pA over –40°C to +85°C. This ultra-low value minimizes voltage error in high-impedance sensor interfaces - such as pH electrodes or photodiode transimpedance amplifiers - where even femtoampere leakage degrades accuracy.
Is LMC6482IN/NOPB pin-compatible with TLC272?
Yes, LMC6482IN/NOPB uses the industry-standard SOIC-8 and PDIP-8 footprints and pinout of TLC272, enabling drop-in replacement in existing designs. Functional improvements - including rail-to-rail I/O, 82 dB CMRR, and ±20 fA input bias current - enhance performance without PCB modifications.
What load conditions does LMC6482IN/NOPB support for rail-to-rail output swing?
LMC6482IN/NOPB maintains rail-to-rail output swing down to 600 Ω loads. At 5 V supply, it delivers 4.7 V high / 0.24 V low into 2 kΩ and 4.24 V high / 0.65 V low into 600 Ω - verified across –40°C to +85°C. This capability ensures full dynamic range preservation in ADC driver and active filter applications.
LMC6482IN/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.3V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.02 pA
- Voltage - Input Offset:
- 110 µV
- Current - Supply:
- 1.3mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 15.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LMC6482IN/NOPB FAQ
1.How can I place an order for LMC6482IN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6482IN/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 LMC6482IN/NOPB reliable?
The price and inventory of LMC6482IN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6482IN/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6482IN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6482IN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6482IN/NOPB?
LMC6482IN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6482IN/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 LMC6482IN/NOPB?
For technical support, including LMC6482IN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6482IN/NOPB requirements.
6.How does Aetrix verify that LMC6482IN/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6482IN/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 LMC6482IN/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6482IN/NOPB?
All LMC6482IN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6482IN/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 LMC6482IN/NOPB part is unused and in its original packaging.
Return procedure for LMC6482IN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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