Analog Devices Inc. LTC2411-1IMS#TRPBF

Overview

LTC2411-1IMS#TRPBF from Analog Devices (formerly Linear Technology) is a 24-bit micropower delta-sigma analog-to-digital converter with differential input and reference, integrated oscillator, 2 ppm INL, 0.29 ppm RMS noise, and simultaneous 50 Hz/60 Hz rejection-designed for precision sensor digitization in industrial weighing, strain gauge, and gas analyzer systems.

For engineers reviewing the LTC2411-1IMS#TRPBF datasheet, LTC2411-1IMS#TRPBF pinout, LTC2411-1IMS#TRPBF application, or LTC2411-1IMS#TRPBF equivalent, key selection criteria include its 49–61.2 Hz notch rejection profile, MSOP-10 package, single-cycle settling, ±0.5V_REF input range, and 4 µA sleep current-critical for low-power, high-accuracy DC measurement designs.

Technical Context

The LTC2411-1IMS#TRPBF implements a decimating FIR filter with internal oscillator clocking at ~139.8 kHz to achieve simultaneous 50 Hz and 60 Hz line-frequency rejection over 49–61.2 Hz without external components. Its autocalibration engine performs offset and full-scale correction every conversion cycle.

It supports flexible common-mode operation: reference common-mode voltage (V_REFCM) and input common-mode voltage (V_INCM) are independently configurable from GND to V_CC, enabling ratiometric and remote sensing topologies. The 3-wire SPI-compatible interface operates in internal or external SCK mode, selected automatically at power-up or CS edge.

Key Specifications

Pinout & Package

Package: 10-lead plastic MSOP (MS10), –40°C to +85°C operating temperature range, θ_JA = 120°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-precision delta-sigma ADC applications.

Compared with ADS124S08IPWR and LTC2440CGN#PBF, the LTC2411-1IMS#TRPBF uniquely delivers simultaneous 50/60 Hz rejection in an MSOP-10 package with zero external timing components-making it optimal for compact, globally deployed instrumentation where mains interference varies by region.

Availability

LTC2411-1IMS#TRPBF is available at Aetrix Electronics and suitable for weight scales, strain gauge transducers, and gas analyzers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for LTC2411-1IMS#TRPBF 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, serving industrial, automotive, communications, and healthcare markets.

The LTC2411-1IMS#TRPBF belongs to ADI's precision delta-sigma ADC product line, engineered for ultra-stable, low-power, direct sensor digitization in metrology-grade instrumentation and process control systems.

FAQ

What is the primary function of the FO pin on the LTC2411-1IMS#TRPBF?

The FO (Frequency Control) pin configures the LTC2411-1IMS#TRPBF's digital filter notch behavior. When tied to GND, it enables simultaneous 50 Hz and 60 Hz rejection across 49–61.2 Hz-critical for global instrumentation. Unlike the LTC2411, the LTC2411-1IMS#TRPBF does not support separate 50 Hz or 60 Hz modes; its FO pin is dedicated to this dual-rejection profile. External clocking remains supported for custom null frequencies.

Does the LTC2411-1IMS#TRPBF require external passive components for its oscillator?

No, the LTC2411-1IMS#TRPBF integrates a precision oscillator that requires no external capacitors, crystals, or resistors. This eliminates timing-component variability and reduces PCB area and BOM cost. The internal oscillator operates at ~139.8 kHz to achieve the specified 49–61.2 Hz notch; external clocking is optional but not required for basic operation.

How does the LTC2411-1IMS#TRPBF handle input and reference common-mode voltages?

The LTC2411-1IMS#TRPBF allows independent setting of input common-mode voltage (V_INCM) and reference common-mode voltage (V_REFCM) anywhere from GND to V_CC. This decoupling enables flexible topologies-such as ground-referenced sensors with high-side references, or floating bridges referenced to mid-supply-without violating input or reference limits, preserving >140 dB DC common-mode rejection.

What is the significance of "no latency" in the LTC2411-1IMS#TRPBF's delta-sigma architecture?

"No latency" means the LTC2411-1IMS#TRPBF's digital filter settles in a single conversion cycle-each 32-bit output corresponds exactly to the analog input sampled during that cycle, with no pipeline delay or redundant samples. This enables deterministic timing for multiplexed sensor systems and eliminates the need for buffer management or output synchronization in real-time control applications.

Can the LTC2411-1IMS#TRPBF operate with a 2.7 V supply and still maintain full 24-bit performance?

Yes, the LTC2411-1IMS#TRPBF is fully specified from 2.7 V to 5.5 V. At 2.7 V, it maintains 24-bit resolution (no missing codes), 2 ppm INL, and 0.29 ppm RMS noise-verified across the –40°C to +85°C temperature range. Its low 200 µA conversion current and 4 µA sleep current ensure stable operation in battery-powered or energy-harvested systems without performance trade-offs.