Analog Devices Inc. LTC2050CS6#TRMPBF

Overview

LTC2050CS6#TRMPBF from Analog Devices is a zero-drift operational amplifier in a 6-lead SOT-23 package, designed for precision DC-coupled signal conditioning. It delivers 0.5µV typical input offset voltage, 10nV/°C offset drift, 1.5µV_P-P (0.01Hz–10Hz) input-referred noise, and rail-to-rail output swing into 2kΩ loads-enabling high-accuracy thermocouple amplification and strain gauge interfaces.

For engineers reviewing the LTC2050CS6#TRMPBF datasheet, LTC2050CS6#TRMPBF pinout, LTC2050CS6#TRMPBF application, or LTC2050CS6#TRMPBF equivalent, key selection criteria include guaranteed 3µV max offset, shutdown functionality (active-low SHDN), 800µA supply current at 3V–6V operation, and compatibility with low-side current sensing and high-resolution data acquisition where long-term DC stability is critical.

Technical Context

The LTC2050CS6#TRMPBF employs auto-zeroing architecture with a 7.5kHz internal sampling clock to continuously correct input offset and 1/f noise, achieving near-zero DC error over temperature and time. Its input common-mode range extends from V– to within 1V of V+, and its enhanced output stage supports rail-to-rail swing under 2kΩ load conditions.

It features an active-low shutdown pin (Pin 5) that reduces supply current to ≤3µA while placing inputs and output in high-impedance state. The device operates across 0°C to 70°C (C-grade), with PSRR and CMRR both exceeding 130dB at DC, ensuring robust rejection of supply and common-mode disturbances in noisy industrial environments.

Key Specifications

Pinout & Package

Package: 6-lead plastic TSOT-23 (S6), 1mm profile, JEDEC MO-193 compliant, footprint compatible with standard SOT-23 pick-and-place equipment.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC2051IMS8#PBF and LTC1050CS8#PBF, the LTC2050CS6#TRMPBF uniquely combines single-channel operation, 6-lead SOT-23 compactness, active shutdown, and the lowest 0.01Hz–10Hz noise in its voltage class-making it optimal for space- and power-constrained precision analog front-ends.

Availability

LTC2050CS6#TRMPBF is available at Aetrix Electronics and suitable for thermocouple amplifiers, electronic scales, and medical instrumentation requiring stable component supply with guaranteed C-grade (0°C to 70°C) performance and lead-free RoHS compliance.

Supply support for LTC2050CS6#TRMPBF 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LTC2050 product line delivers zero-drift operational amplifiers optimized for DC-accurate signal conditioning in sensor interfaces, data acquisition, and precision instrumentation where long-term stability outweighs speed requirements.

FAQ

What is the maximum input offset voltage specification for the LTC2050CS6#TRMPBF?

The LTC2050CS6#TRMPBF has a maximum input offset voltage of ±3µV across its specified temperature range (0°C to 70°C). This guaranteed limit-combined with its 10nV/°C typical drift-ensures predictable DC error in precision applications such as strain gauge amplification. The ±3µV max is validated per Analog Devices' production testing and appears in the Electrical Characteristics table of the Rev F datasheet.

Does the LTC2050CS6#TRMPBF support single-supply operation, and what is its minimum supply voltage?

Yes, the LTC2050CS6#TRMPBF supports true single-supply operation from 2.7V to 6V. Its input common-mode range extends from the negative rail (V–, typically ground) up to within 1V of the positive rail, and its rail-to-rail output can swing within 1mV of V– and 10mV of V+ into 10kΩ. This makes the LTC2050CS6#TRMPBF suitable for direct interfacing with 3.3V microcontrollers and low-voltage ADCs without level-shifting circuitry.

How does the shutdown feature of the LTC2050CS6#TRMPBF function, and what is its quiescent current in shutdown mode?

The LTC2050CS6#TRMPBF features an active-low shutdown pin (Pin 5). When pulled to V– (or ≤0.5V above V–), the device enters shutdown mode, reducing supply current to ≤3µA while placing both inputs and the output in high-impedance state. In normal operation (SHDN ≥V+ – 0.5V), quiescent current is 0.8mA typical at 3V. This low shutdown current enables energy-efficient duty-cycled operation in portable instrumentation using the LTC2050CS6#TRMPBF.

What is the input-referred noise performance of the LTC2050CS6#TRMPBF, and over what frequency band is it specified?

The LTC2050CS6#TRMPBF delivers 1.5µV_P-P input-referred noise over the 0.01Hz to 10Hz band, as measured with RS = 100Ω. This ultra-low flicker noise-enabled by its auto-zeroing architecture-is critical for high-resolution DC measurements in applications like electronic scales and thermocouple amplifiers. The specification is confirmed in the Electrical Characteristics table (Rev F, page 3) and is independent of gain configuration.

Is the LTC2050CS6#TRMPBF pin-compatible with other variants in the LTC2050 family, such as the 5-lead or SO-8 versions?

No, the LTC2050CS6#TRMPBF is not pin-compatible with the 5-lead SOT-23 (S5) or 8-lead SO (S8) variants. Its 6-lead SOT-23 (S6) package includes a dedicated SHDN pin (Pin 5), whereas the S5 version lacks shutdown functionality and the S8 version places SHDN on Pin 7 with different pin numbering. PCB layout must be specific to the S6 footprint; migration requires board revision and signal routing changes.