Analog Devices Inc. LTC2414IGN#TRPBF

Overview

LTC2414IGN#TRPBF from Analog Devices (formerly Linear Technology) is an 8-channel, 24-bit no-latency delta-sigma ADC with integrated oscillator, 2 ppm INL, 0.2 ppm RMS noise, and single-cycle settling for multiplexed sensor measurements. It operates from 2.7V to 5.5V, supports 4 differential or 8 single-ended inputs, and delivers 110 dB 50/60 Hz notch rejection-ideal for precision industrial weight scales and strain gauge transducers.

For engineers reviewing the LTC2414IGN#TRPBF datasheet, LTC2414IGN#TRPBF pinout, LTC2414IGN#TRPBF application, or LTC2414IGN#TRPBF equivalent, key selection criteria include its –40°C to +85°C industrial temperature grade, GN (28-lead SSOP) package, differential reference support down to 0.1 V, and guaranteed no missing codes across full-scale range.

Technical Context

The LTC2414IGN#TRPBF implements a 3rd-order delta-sigma modulator with decimating FIR filter, enabling true single-conversion-cycle settling without latency or redundant output words. Its internal oscillator eliminates external timing components and provides programmable 50 Hz or 60 Hz line-frequency rejection via the FO pin.

It uses a flexible 4-wire SPI/MICROWIRE-compatible interface with bidirectional SCK, tri-state SDO, and active-low CS. Channel selection occurs during data output via SDI, allowing dynamic reconfiguration before the next conversion-no register writes required.

Key Specifications

Pinout & Package

Package: GN - 28-lead plastic SSOP (0.209" wide), RoHS-compliant, –40°C to +85°C operating temperature range.

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 MAX11206ETL+, the LTC2414IGN#TRPBF uniquely balances 24-bit integrity, 0.2 ppm noise, 110 dB line rejection, and 2.7V–5.5V operation-all in a single-cycle settling architecture with no external timing components.

Availability

LTC2414IGN#TRPBF is available at Aetrix Electronics and suitable for industrial process control, precision instrumentation, and battery-powered data acquisition requiring stable component supply across extended temperature ranges.

Supply support for LTC2414IGN#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 acquired Linear Technology in 2017 and maintains its precision analog portfolio, emphasizing high-performance signal chain solutions for demanding industrial and instrumentation markets.

The LTC2414IGN#TRPBF belongs to Linear's no-latency delta-sigma ADC family, designed specifically for direct sensor digitization in environments where mains interference, thermal drift, and power constraints preclude traditional oversampling or post-processing architectures.

FAQ

What is the operating temperature range of the LTC2414IGN#TRPBF?

The LTC2414IGN#TRPBF is rated for –40°C to +85°C operation, matching the "I" grade designation in its part number. This industrial temperature range ensures reliable performance in factory automation, outdoor instrumentation, and uncontrolled environmental deployments where commercial-grade parts would fail.

Does the LTC2414IGN#TRPBF require external passive components for its oscillator?

No-the LTC2414IGN#TRPBF integrates a precision oscillator that requires zero external components. Unlike many delta-sigma ADCs, it achieves 110 dB 50/60 Hz rejection using only the internal clock, eliminating crystals, load capacitors, and associated layout sensitivity-reducing design risk and bill-of-materials cost.

How does the LTC2414IGN#TRPBF handle channel switching in multiplexed applications?

The LTC2414IGN#TRPBF provides true no-latency operation: each conversion yields a fully settled 24-bit result immediately after channel selection, with no filter settling delay. Channel updates occur dynamically via SDI during the data output phase, enabling seamless scanning of all 8 inputs without discarded samples or timing overhead.

Can the LTC2414IGN#TRPBF accept a 0.5 V reference voltage?

Yes-the LTC2414IGN#TRPBF supports external differential reference voltages from 0.1 V to VCC. With a 0.5 V reference, its full-scale input range becomes ±0.25 V, enabling high-resolution digitization of low-output sensors (e.g., micro-strain gauges or low-g accelerometers) while maintaining 24-bit code density and 2 ppm INL.

What is the function of the COM pin on the LTC2414IGN#TRPBF?

The COM pin on the LTC2414IGN#TRPBF serves as the common negative input (IN–) for all single-ended channel configurations. It accepts voltages from GND–0.3 V to VCC+0.3 V, allowing flexible grounding schemes-including connection to sensor return paths or mid-supply bias points-without violating input voltage limits or degrading CMRR.