My Inquiry
My Account
Texas Instruments LMC6482IMM/NOPB
- Part No.:
- LMC6482IMM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMC6482IMM/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,567
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMC6482IMM/NOPB from Texas Instruments is a dual-channel CMOS rail-to-rail input and output operational amplifier optimized for precision, low-power, single-supply operation. 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 supplies. It is used in high-accuracy data acquisition systems where full-scale signal utilization and minimal offset drift are critical.
For engineers reviewing the LMC6482IMM/NOPB datasheet, LMC6482IMM/NOPB pinout, LMC6482IMM/NOPB application, or LMC6482IMM/NOPB equivalent, key selection criteria include ultra-low input current for high-impedance sensor interfacing, guaranteed rail-to-rail common-mode range extending 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 LMC6482IMM/NOPB employs a complementary CMOS input stage enabling true rail-to-rail input common-mode voltage range (–0.3 V to VS + 0.3 V), with no phase inversion even when inputs exceed supply rails. Its output stage sustains rail-to-rail swing down to 600 Ω loads while maintaining 82 dB PSRR and CMRR across temperature.
It features ultra-low 20 fA input bias current and 0.7 mA per amplifier supply current at 5 V, making it suitable for battery-powered instrumentation. The device supports both single-supply (e.g., 3 V, 5 V) and split-supply (±7.5 V) operation, with input offset voltage drift of ±1 µV/°C and gain bandwidth of 1.5 MHz at 15 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 15 V - enables direct interface with Li-ion, 3.3 V logic, and industrial 12 V rails without level shifting. |
| Input Bias Current | 20 fA typical - preserves signal integrity in high-impedance pH/gas sensor front-ends and photodiode transimpedance stages. |
| CMRR / PSRR | 82 dB - ensures ≤0.325 LSB error in 12-bit DAQ systems by rejecting supply noise and common-mode interference. |
| Rail-to-Rail Output Swing | Within 20 mV of rails at 100 kΩ; within 500 mV at 600 Ω - maximizes dynamic range in single-supply ADC buffering applications. |
| Input Offset Voltage | ±0.75 mV max (25°C), ±1.35 mV max (–40°C to +85°C) - supports precision DC-coupled measurement without frequent calibration. |
| Gain Bandwidth Product | 1.5 MHz - sufficient for anti-aliasing filters, sensor signal conditioning, and medium-speed pulse amplification. |
| Slew Rate | 1.3 V/µs - supports clean 10 kHz sine wave amplification with <0.01% THD at 8.5 VPP. |
Pinout & Package
VSSOP-8 (DGK) package: 2.0 mm × 2.5 mm, 0.5 mm pitch, thermally enhanced exposed pad (not electrically connected). Ideal for space-constrained portable and medical instrumentation PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Output | Amplifier A output; drives external load or next-stage input with rail-to-rail swing capability. |
| 2 - −IN A | Input | Inverting input for amplifier A; accepts signals from –0.3 V to V+ + 0.3 V with no phase inversion. |
| 3 - +IN A | Input | Noninverting input for amplifier A; same rail-to-rail common-mode range as −IN A. |
| 4 - V− | Power | Negative supply pin; connects to ground in single-supply systems or negative rail in dual-supply configurations. |
| 5 - +IN B | Input | Noninverting input for amplifier B; independent channel with identical input specifications as amplifier A. |
| 6 - −IN B | Input | Inverting input for amplifier B; fully decoupled from amplifier A for dual-channel signal processing. |
| 7 - OUT B | Output | Amplifier B output; supports simultaneous dual-signal conditioning (e.g., differential pair, I/Q path). |
| 8 - V+ | Power | Positive supply pin; accepts 3–15 V; internal ESD protection rated to ±1500 V HBM. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 300 mV beyond both supply rails - eliminates need for input biasing networks in single-supply sensor interfaces. |
| Ultra-low input bias current (20 fA) | Enables use with >10 GΩ source impedances (e.g., glass pH electrodes, piezoresistive sensors) without significant offset error. |
| Specified performance at 3 V, 5 V, and 15 V | Guarantees full functionality across battery, logic, and industrial power domains - no derating required. |
| 82 dB CMRR and PSRR | Maintains 12-bit linearity in noisy environments (e.g., motor drives, power supplies) without additional filtering. |
| Rail-to-rail output into 600 Ω | Drives low-impedance loads (e.g., coaxial cables, ADC reference buffers) while preserving full dynamic range. |
Applications
| Data Acquisition Systems | Currency Counting Sensors |
|---|---|
|
Use Scenario: Buffering analog outputs of high-resolution ADCs (e.g., ADC12038) in portable DAQ units operating from 3.3 V batteries. IC Role / Device Role / Timing Role: Precision unity-gain buffer with rail-to-rail input/output, preserving full-scale signal range and minimizing integral nonlinearity. Use Value: Enables 12-bit accuracy (±0.325 LSB) via 82 dB CMRR - outperforming 50 dB alternatives limited to 8-bit effective resolution. |
Use Scenario: Signal conditioning for optical or inductive currency validation sensors detecting metal composition and size. IC Role / Device Role / Timing Role: Low-noise, high-Z front-end amplifier converting microvolt-level sensor signals into robust 0–3.3 V logic-compatible levels. Use Value: 20 fA input bias current prevents charge accumulation on high-impedance sensor nodes, ensuring stable detection thresholds over time. |
| Oscilloscope Front-Ends (DSO) | Multiparameter Patient Monitors |
|
Use Scenario: DC-coupled vertical amplifier stage in handheld digital storage oscilloscopes requiring wide dynamic range and low offset drift. IC Role / Device Role / Timing Role: Dual-channel gain-setting amplifier providing matched channel response and rail-to-rail output swing into 50 Ω scope inputs. Use Value: ±1 µV/°C offset drift and 1.5 MHz GBW support accurate low-frequency waveform capture without thermal recalibration. |
Use Scenario: Biopotential signal conditioning (ECG, EEG, EMG) in compact clinical monitors with strict power and size constraints. IC Role / Device Role / Timing Role: Instrumentation-grade dual op-amp implementing 3-op-amp topology with RES11A matched resistors for high CMRR. Use Value: 82 dB CMRR rejects 50/60 Hz mains interference in unshielded hospital environments, improving diagnostic signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher input bias current (1 pA), lower CMRR (75 dB), 2.5 V min supply - not specified for 3 V operation. | Limited to higher-voltage, lower-precision applications; unsuitable for sub-3 V battery systems or 12-bit DAQ. | Select LMC6482IMM/NOPB when 20 fA bias current and guaranteed 3 V operation are mandatory. |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C offset drift, but 500 nA input bias current and 1.8 V min supply. | Better DC stability for long-term measurements, but incompatible with high-impedance sensors due to leakage. | Choose LMC6482IMM/NOPB for ultra-high-Z sensor interfacing; choose OPA2333AIDR only when near-zero drift outweighs input current penalty. |
Compared with TLV2462IDR and OPA2333AIDR, the LMC6482IMM/NOPB uniquely balances femtoampere input current, rail-to-rail operation from 3 V, and 82 dB CMRR - making it irreplaceable in battery-powered, high-impedance, precision analog front-ends where all three traits are simultaneously required.
Availability
LMC6482IMM/NOPB is available at Aetrix Electronics and suitable for data acquisition systems, medical instrumentation, and industrial sensor interfaces requiring stable component supply, long-lifecycle availability, and consistent parametric performance across production batches.
Supply support for LMC6482IMM/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 LMC648x family was designed specifically for high-accuracy, low-power, single-supply applications demanding rail-to-rail input/output performance - targeting portable instrumentation, medical devices, and industrial sensing where traditional op amps fail to deliver full dynamic range.
FAQ
What is the minimum supply voltage for reliable operation of the LMC6482IMM/NOPB?
The LMC6482IMM/NOPB is fully specified from 3 V to 15 V supply voltage. At 3 V, it maintains rail-to-rail input common-mode range, 2.5 V output swing into 2 kΩ, and 0.6 mA per amplifier supply current - making it suitable for single-cell Li-ion and 3.3 V system designs. Operation below 3 V is not characterized or guaranteed.
Does the LMC6482IMM/NOPB support true rail-to-rail input beyond the supply rails?
Yes - the LMC6482IMM/NOPB input common-mode voltage range extends to (V−) − 0.3 V and (V+) + 0.3 V at room temperature, with no phase inversion. This allows direct interfacing with overvoltage transients or bipolar signals in single-supply systems, provided input current is externally limited to ±5 mA using series resistors.
Can the LMC6482IMM/NOPB drive a 600 Ω load while maintaining rail-to-rail output swing?
Yes - the LMC6482IMM/NOPB is explicitly specified for 600 Ω loads: at 5 V supply, output swing is 4.24 V high / 0.65 V low; at 15 V, it is 13 V high / 1.3 V low. This capability enables direct driving of coaxial cables, ADC reference buffers, and other moderate-impedance loads without external gain stages.
How does the LMC6482IMM/NOPB compare to TLC272 in terms of upgrade value?
The LMC6482IMM/NOPB is an improved replacement for TLC272, offering rail-to-rail input/output (vs. limited common-mode range), 20 fA vs. 1 pA input bias current, 82 dB vs. 70 dB CMRR, and guaranteed 3 V operation. It retains industry-standard SOIC-8 and VSSOP-8 pinouts, enabling drop-in upgrades in existing TLC272 designs with immediate signal range and accuracy gains.
What thermal performance can be expected from the LMC6482IMM/NOPB in VSSOP-8 package?
In the DGK (VSSOP-8) package, the LMC6482IMM/NOPB has a junction-to-ambient thermal resistance (RθJA) of 169.5°C/W and junction-to-board (RθJB) of 91.2°C/W. With 0.7 mA per amplifier at 5 V (3.5 mW total), self-heating remains under 1°C in typical PCB layouts - ensuring stable DC performance in precision applications.
LMC6482IMM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMC6482IMM/NOPB FAQ
1.How can I place an order for LMC6482IMM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC6482IMM/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 LMC6482IMM/NOPB reliable?
The price and inventory of LMC6482IMM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC6482IMM/NOPB is usually 5 days.
3.What payment methods are accepted for LMC6482IMM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC6482IMM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC6482IMM/NOPB?
LMC6482IMM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC6482IMM/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 LMC6482IMM/NOPB?
For technical support, including LMC6482IMM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC6482IMM/NOPB requirements.
6.How does Aetrix verify that LMC6482IMM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMC6482IMM/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 LMC6482IMM/NOPB meets industry standards.
7.What is the process for return or replacement of LMC6482IMM/NOPB?
All LMC6482IMM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMC6482IMM/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 LMC6482IMM/NOPB part is unused and in its original packaging.
Return procedure for LMC6482IMM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC6482IMM/NOPB Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
