Texas Instruments LMC6082AIM/NOPB

Overview

LMC6082AIM/NOPB from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-offset, ultra-low-input-bias-current, rail-to-rail output 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, and rail-to-rail output swing within 20 mV of supply rails into 100 kΩ load - enabling high-accuracy signal conditioning in medical instrumentation, photodiode preamplifiers, and transducer interfaces.

For engineers reviewing the LMC6082AIM/NOPB datasheet, LMC6082AIM/NOPB pinout, LMC6082AIM/NOPB application, or LMC6082AIM/NOPB equivalent, key selection considerations include its guaranteed −40°C to +85°C operating temperature range, SOIC-8 package with 193°C/W thermal resistance, and compatibility with single-supply precision circuits requiring sub-picoampere input leakage and <1 μV/°C offset drift.

Technical Context

The LMC6082AIM/NOPB employs a proprietary CMOS input stage with double-poly silicon-gate process to achieve 10 fA input bias current and >10 TΩ input resistance. Its output stage uses direct integrator feedback rather than conventional push-pull buffering, enabling rail-to-rail swing while maintaining stability under capacitive loads when properly compensated.

This architecture supports high DC precision (130 dB open-loop gain, 85 dB CMRR at 0–12 V common-mode range) and AC performance (1.3 MHz GBW, 1.5 V/μs slew rate), with improved latchup immunity and ESD tolerance up to 2 kV (HBM). It operates across 4.5 V to 15.5 V supply, with input common-mode range extending to V− (ground) and output swing to within 20 mV of both rails.

Key Specifications

Pinout & Package

LMC6082AIM/NOPB is housed in an 8-pin SOIC (Package Drawing D) with 1.27 mm lead pitch and 1.75 mm max height. The package complies with JEDEC MS-012 variation AA and is RoHS-compliant with green (Br/Cl-free) finish and SN lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMC6062IM/NOPB, LMC6082AIM/NOPB provides 4× higher slew rate and 3× greater bandwidth for dynamic sensor signals, while OPA2188AIDR trades ultra-low drift for zero-drift complexity and lacks the LMC6082AIM/NOPB's guaranteed rail-to-rail output into heavy loads.

Availability

LMC6082AIM/NOPB is available at Aetrix Electronics and suitable for medical instrumentation, photodiode preamplification, and transducer signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMC6082AIM/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 innovation in precision analog ICs and broad industrial portfolio coverage.

The LMC6082AIM/NOPB belongs to TI's precision CMOS op-amp product line, engineered specifically for single-supply, high-impedance sensor interface applications demanding ultra-low input bias current, rail-to-rail output, and robust DC accuracy.

FAQ

What is the maximum operating junction temperature for LMC6082AIM/NOPB?

The LMC6082AIM/NOPB has a maximum junction temperature of 150°C, with an operating temperature range of −40°C to +85°C. Its SOIC-8 package exhibits a thermal resistance θ_JA of 193°C/W, meaning at 1.5 mA total supply current and 25°C ambient, junction temperature rise is approximately 29°C - well within safe limits. Derating is required above 70°C ambient per PD = (T_J(Max) − T_A)/θ_JA.

Does LMC6082AIM/NOPB support true rail-to-rail input operation?

No, the LMC6082AIM/NOPB does not support rail-to-rail input - its input common-mode voltage range extends to V− (ground) but only to V+ − 2.3 V at 25°C. However, it does provide rail-to-rail output swing, reaching within 20 mV of both supply rails into 100 kΩ loads. This makes it ideal for single-supply systems where inputs are ground-referenced but full output swing is required.

Can LMC6082AIM/NOPB drive capacitive loads directly?

LMC6082AIM/NOPB can drive moderate capacitive loads (≤100 pF) with proper compensation, but direct connection to large capacitors (>500 pF) risks instability. TI recommends using a pull-up resistor to V+ (≥500 μA current) or adding an RC network (R1/C1) in the feedback path as shown in Figure 26 of the datasheet. Uncompensated capacitive loading degrades phase margin and causes overshoot or oscillation in pulse response.

What is the typical input-referred voltage noise of LMC6082AIM/NOPB at 1 kHz?

The LMC6082AIM/NOPB has a typical input-referred voltage noise of 22 nV/√Hz at 1 kHz. This value is confirmed in the AC Electrical Characteristics table and remains stable across the −40°C to +85°C operating range. Combined with its 10 fA input current noise (0.0002 pA/√Hz), this enables optimal SNR in high-source-impedance applications like photodiode transimpedance amplifiers.

Is LMC6082AIM/NOPB pin-compatible with other dual op-amps in SOIC-8 packages?

LMC6082AIM/NOPB follows standard SOIC-8 pinout (dual op-amp configuration: Pins 1–3/A, 4/V−, 5–7/B, 8/V+), matching industry conventions used by TL072, OP27, and OPA2188. However, functional compatibility requires verification of input/output voltage ranges, bias current, and supply requirements - e.g., TL072 has 200 pA bias current and no rail-to-rail output, making it unsuitable as a drop-in replacement for precision high-Z applications.