Analog Devices Inc. LT6013IS8#PBF

Overview

LT6013IS8#PBF from Analog Devices (formerly Linear Technology) is a single-channel, rail-to-rail output precision operational amplifier optimized for low-noise, micro-power sensor interface applications. It delivers 9.5nV/√Hz input voltage noise at 1kHz, 35µV max input offset voltage (A-grade), 145µA supply current per amplifier, and stable operation at gain ≥5 - enabling high-accuracy thermocouple and photodiode amplification in battery-powered systems.

For engineers reviewing the LT6013IS8#PBF datasheet, LT6013IS8#PBF pinout, LT6013IS8#PBF application, or LT6013IS8#PBF equivalent, key selection criteria include guaranteed –40°C to 85°C industrial temperature operation, SO-8 package compatibility, 250pA max input bias current (A-grade), 0.2V/µs slew rate, and 1.4MHz gain bandwidth - all critical for low-drift, low-power analog front-ends.

Technical Context

The LT6013IS8#PBF employs a decompensated internal architecture requiring minimum closed-loop gain of 5 for stability, supporting up to 500pF capacitive load at that gain. Its input stage uses on-chip bias current cancellation to achieve sub-500pA input bias current while maintaining low offset drift (0.8µV/°C max).

It features rail-to-rail output swing (within 40mV of rails at no load), operates from 2.7V single supply or ±18V dual supply, and achieves 120dB minimum open-loop voltage gain with 112dB PSRR and 107dB CMRR over full temperature range - making it suitable for precision DC-coupled signal conditioning where power, noise, and accuracy are co-constrained.

Key Specifications

Pinout & Package

LT6013IS8#PBF is housed in an 8-lead plastic SO (Small Outline) package (S8), with exposed pad not connected. Pin 1 is marked by a notch or dot; the package is RoHS-compliant and lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LT6010IS8#PBF and OPA333AIDBVR, the LT6013IS8#PBF provides the optimal balance of ultra-low 1/f noise, micro-power consumption, rail-to-rail output, and extended supply range - making it the preferred choice for precision, low-frequency, battery-constrained sensor interfaces where gain ≥5 is acceptable.

Availability

LT6013IS8#PBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, precision photodiode interfaces, and micro-power sensor nodes requiring stable component supply across industrial temperature grades and long-lifecycle production.

Supply support for LT6013IS8#PBF 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

Analog Devices acquired Linear Technology in 2017 and maintains its legacy precision analog portfolio with full datasheet, reliability, and support continuity.

The LT6013 series belongs to Linear's precision op amp product line, designed specifically for low-noise, low-power, high-accuracy signal conditioning in sensor, instrumentation, and industrial measurement applications.

FAQ

What is the maximum capacitive load the LT6013IS8#PBF can drive while remaining stable?

The LT6013IS8#PBF can drive up to 500pF capacitive load when configured with closed-loop gain ≥5. Stability degrades below gain 5, and driving >200pF directly from output to inverting input requires additional phase compensation per datasheet Figure 2. For loads >500pF, add a small series resistor (e.g., 10–50Ω) between output and capacitor to maintain phase margin. This behavior is confirmed in the "Capacitive Loads" section of the LT6013/LT6014 datasheet (60134fb, p.13).

Does the LT6013IS8#PBF support single-supply operation, and what is its input common-mode range?

Yes, the LT6013IS8#PBF operates from a single 2.7V to 36V supply (or ±18V dual). Its input common-mode range is specified from V– +1V to V+ –1.2V - meaning at 5V single supply, inputs must stay between 1V and 3.8V to maintain specified performance. Operation outside this range causes gain collapse but no phase reversal. This limitation is explicitly defined in the "Input Voltage Range" electrical characteristic table (60134fb, p.4).

Is the LT6013IS8#PBF pin-compatible with other op amps in the LT601x family?

The LT6013IS8#PBF shares the same SO-8 pinout with LT6010IS8#PBF and LT6011IS8#PBF, but functional differences exist: LT6010 is unity-gain stable; LT6011 is dual-channel and unity-gain stable. Direct substitution is not recommended without verifying gain configuration, noise, and stability requirements. The LT6013IS8#PBF pinout is documented in the "PACKAGE DESCRIPTION" section (60134fb, p.15) and matches standard SO-8 op amp layout.

What is the typical input bias current mismatch between +IN and –IN terminals of the LT6013IS8#PBF?

The LT6013IS8#PBF does not specify input bias current mismatch (ΔIB) because it is a single amplifier - mismatch parameters like ΔIB and ΔVOS apply only to dual/quad parts (e.g., LT6014). For LT6013IS8#PBF, absolute input bias current is specified: ±250pA max (A-grade, –40°C to 85°C), with uncorrelated +IN/–IN currents due to on-chip cancellation. This is clarified in Note 8 and the IB specification table (60134fb, p.4).

Can the LT6013IS8#PBF be used in a unity-gain buffer configuration?

No - the LT6013IS8#PBF is intentionally decompensated for gain ≥5 stability and is not unity-gain stable. Attempting unity-gain operation risks oscillation. If unity-gain is required, use the pin-compatible LT6010IS8#PBF (unity-gain stable, slightly higher noise) or add external compensation per Figure 2 in the datasheet (60134fb, p.12). This restriction is emphasized in the "Not Unity-Gain Stable" section (p.12).