Analog Devices Inc. LT6010ACDD#PBF

Overview

LT6010ACDD#PBF from Analog Devices (acquired Linear Technology) is a precision rail-to-rail output operational amplifier with shutdown, designed for low-noise, high-accuracy signal conditioning in battery-powered and instrumentation systems. It delivers 35 µV max input offset voltage, 110 pA max input bias current, 135 µA supply current, 14 nV/√Hz input voltage noise density, and operates from 2.7 V to ±18 V supplies - enabling high-fidelity thermocouple and photodiode amplification at ultra-low power.

For engineers reviewing the LT6010ACDD#PBF datasheet, LT6010ACDD#PBF pinout, LT6010ACDD#PBF application, or LT6010ACDD#PBF equivalent, key selection considerations include its A-grade precision (±35 µV V_OS, 0.8 µV/°C drift), DFN-8 (3 mm × 3 mm) package with exposed thermal pad, shutdown functionality reducing I_CC to 12 µA, and guaranteed performance over –40°C to 85°C.

Technical Context

The LT6010ACDD#PBF employs a proprietary input stage with on-chip trimming to achieve sub-35 µV offset and <0.8 µV/°C drift across temperature. Its input bias current is actively canceled, enabling stable operation with high-impedance sources up to 100 MΩ without external guarding.

It features internal 500 Ω series input resistors and back-to-back diodes for ±10 V differential input protection, while maintaining rail-to-rail output swing (within 40 mV of rails at no load). The SHDN pin controls power-down with 25 µs turn-on/off timing and an internal 85 kΩ pull-down resistor.

Key Specifications

Pinout & Package

LT6010ACDD#PBF is housed in an 8-lead 3 mm × 3 mm plastic DFN package (LTC DWG #05-08-1698) with exposed thermal pad internally connected to V–. PCB connection to the pad is optional but recommended for thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA333AIDBVR and AD8628ARZ, the LT6010ACDD#PBF offers optimal balance of low drift (0.8 µV/°C), low broadband noise (14 nV/√Hz), ultra-low power (135 µA), and compact DFN packaging - making it uniquely suited for portable, battery-operated precision analog systems where all four attributes are simultaneously required.

Availability

LT6010ACDD#PBF is available at Aetrix Electronics and suitable for thermocouple amplification, precision photodiode sensing, portable instrumentation, and battery-powered RTD measurement requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

Supply support for LT6010ACDD#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.

The LT6010ACDD#PBF belongs to ADI's precision op amp product line, engineered specifically for low-power, high-accuracy signal conditioning in instrumentation, industrial sensing, and portable medical devices where offset, drift, noise, and supply current must be simultaneously minimized.

FAQ

What is the maximum differential input voltage rating for the LT6010ACDD#PBF?

The LT6010ACDD#PBF has an absolute maximum differential input voltage of ±10 V. This is enforced by internal 500 Ω series resistors and back-to-back diodes. Exceeding this rating risks damage unless external current limiting is added - for example, 1 kΩ series resistors per input protect against 30 V differential inputs. Always refer to the Absolute Maximum Ratings table in the official LT6010 datasheet for safe operating limits.

Does the LT6010ACDD#PBF support true rail-to-rail input operation?

No, the LT6010ACDD#PBF does not support rail-to-rail input operation. Its input common-mode range is specified from V– + 1 V to V+ – 1.2 V. While the output swings rail-to-rail (within 40 mV), the inputs require headroom. For configurations like non-inverting unity-gain buffers where inputs track the output, a rail-to-rail input op amp (e.g., LT6015) is required - the LT6010ACDD#PBF is optimized for applications where inputs remain within its valid CM range, such as inverting amplifiers or fixed-bias transducer interfaces.

How does the shutdown function behave on the LT6010ACDD#PBF?

The LT6010ACDD#PBF enters shutdown when the SHDN pin voltage is ≥ V– + 2.0 V, reducing supply current to 12 µA. During shutdown, the output remains connected to the inputs - it is not isolated - so the device cannot be used for analog multiplexing. Turn-on/off timing is 25 µs. An internal 85 kΩ pull-down resistor biases SHDN toward V–; external series resistance may be added to limit SHDN pin current if driving from high-voltage sources.

What is the thermal pad connection requirement for the LT6010ACDD#PBF DFN package?

The underside metal pad of the LT6010ACDD#PBF DFN package is internally connected to V–. PCB connection to this pad is optional but strongly recommended for thermal performance: soldering it to a V– plane improves θ_JA and allows sustained operation at full specifications up to +70°C ambient. No electrical isolation is required - the pad is not a separate terminal and must not be floated or tied to any other potential.

Can the LT6010ACDD#PBF drive capacitive loads, and what is the limit?

Yes, the LT6010ACDD#PBF can drive capacitive loads up to 500 pF in unity-gain configuration. Stability improves with higher closed-loop gain - for example, gain-of-10 operation supports >1 nF loads. Adding a small series resistor (e.g., 10–50 Ω) between the output and the load further enhances phase margin and extends usable capacitance. Avoid direct connection to large (>1 nF) capacitive loads without compensation, as this may cause peaking or oscillation in precision applications.