Texas Instruments LMC6082AIN/NOPB

Overview

LMC6082AIN/NOPB from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-offset, ultra-low-input-bias-current applications operating from 4.5 V to 15 V single supply. It delivers 150 μV typical input offset voltage, 10 fA typical input bias current, rail-to-rail output swing within 20 mV of supply rails (at 100 kΩ load), and 130 dB open-loop voltage gain - enabling high-accuracy signal conditioning in medical instrumentation, photodiode preamplifiers, and transducer interfaces.

For engineers reviewing the LMC6082AIN/NOPB datasheet, LMC6082AIN/NOPB pinout, LMC6082AIN/NOPB application, or LMC6082AIN/NOPB equivalent, key selection considerations include its guaranteed −40°C to +85°C operating temperature range, PDIP-8 package with through-hole mounting, input common-mode range extending to V−, and compatibility with single-supply precision circuits requiring sub-picoampere input leakage and <1 μV/°C offset drift.

Technical Context

The LMC6082AIN/NOPB employs a proprietary CMOS input stage with double-poly silicon-gate process to achieve femtoampere-level input bias current while maintaining rail-to-rail output swing via an internal integrator-based output architecture - eliminating conventional push-pull buffers. Its feed-forward compensation ensures stability across wide capacitive load and supply voltage ranges (4.5 V–15 V).

This architecture enables direct use in high-impedance sensor interfaces without guard-ring layout dependency, supports true ground-sensing inputs, and sustains >75 dB CMRR and PSRR over full common-mode range - critical for precision integrators, charge amplifiers, and instrumentation amplifier front-ends where input offset drift and bias current-induced errors dominate system accuracy.

Key Specifications

Pinout & Package

LMC6082AIN/NOPB is housed in an 8-pin plastic dual in-line package (PDIP) with 0.3 inch body width, through-hole mounting, and RoHS-compliant lead finish. Pin 1 is identified by a notch or dot; device marking reads "LMC6082 AIN".

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision dual op-amp applications.

Compared with LMC6082AIM/NOPB, the LMC6082AIN/NOPB offers superior thermal resistance for through-hole thermal management but lacks surface-mount compatibility; versus OPA2188AIDR, it trades zero-drift performance for 25× lower input bias current - making it irreplaceable in charge-integration and photodiode applications where leakage defines accuracy limits.

Availability

LMC6082AIN/NOPB is available at Aetrix Electronics and suitable for medical instrumentation, industrial sensor signal conditioning, and portable analytical equipment requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for LMC6082AIN/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 over 90 years of innovation in precision analog ICs and industrial-grade components.

The LMC6082AIN/NOPB belongs to TI's precision operational amplifier product line, designed specifically for ultra-low-input-bias-current, single-supply applications in medical, scientific, and high-impedance sensor systems where femtoampere-level leakage and microvolt-level offset define system performance.

FAQ

What is the maximum operating temperature range for the LMC6082AIN/NOPB?

The LMC6082AIN/NOPB is specified for operation from −40°C to +85°C, matching the LMC6082AI grade per TI's SNOS630D datasheet. This range is validated across all electrical parameters including input offset voltage, bias current, and output swing - ensuring reliable performance in industrial and portable medical environments without derating.

Does the LMC6082AIN/NOPB support true rail-to-rail input common-mode range?

The LMC6082AIN/NOPB supports rail-to-rail *output* swing but its input common-mode range extends only to V− (ground) and up to V+ − 2.3 V. It does not accept inputs at V+; however, inclusion of V− enables ground-referenced sensor interfacing - a key differentiator from many competing dual op-amps that require input biasing above ground.

Can the LMC6082AIN/NOPB drive capacitive loads directly?

The LMC6082AIN/NOPB exhibits reduced phase margin with direct capacitive loading and may oscillate if driven into >100 pF without external compensation. TI recommends using a series resistor (e.g., 50–100 Ω) between output and load, or adding a pull-up resistor to V+ as described in Figure 27 of the datasheet, to maintain stability in ADC driver or filter applications.

What is the typical input offset voltage drift (TCVOS) of the LMC6082AIN/NOPB?

The LMC6082AIN/NOPB has a typical input offset voltage drift of 1.0 μV/°C, as confirmed in the DC Electrical Characteristics table of the SNOS630D datasheet. This low drift ensures minimal baseline shift over temperature - critical for precision integrators and long-duration biomedical measurements where thermal gradients affect accuracy.

Is the LMC6082AIN/NOPB RoHS compliant and lead-free?

Yes, the LMC6082AIN/NOPB is RoHS compliant and lead-free, as indicated by the "/NOPB" suffix and confirmed in TI's PACKAGE OPTION ADDENDUM (10-Apr-2020). It features green (halogen-free) molding compound and Sn (tin) lead finish, meeting EU RoHS Directive 2011/65/EU requirements for all 10 restricted substances.