Analog Devices Inc. DC2365A-E

Overview

DC2365A-E from Analog Devices is an evaluation board for the LTC2358-16 - a buffered octal, 16-bit, 200ksps/channel differential successive approximation register (SAR) ADC with ±10.24V input range, 30V_P-P common mode capability, and integrated reference buffer. It supports per-channel SoftSpan configuration (±10.24V/0–10.24V/±5.12V/0–5.12V), 94.2dB SNR, ±1LSB INL, and CMOS/LVDS serial interfaces - designed for high-voltage industrial data acquisition.

For engineers reviewing the DC2365A-E datasheet, DC2365A-E pinout, DC2365A-E application, or DC2365A-E equivalent, this board enables rapid validation of the LTC2358-16's simultaneous sampling, wide common-mode tolerance, rail-to-rail overdrive resilience, and flexible SPI/LVDS interface timing in programmable logic controllers, power line monitoring, and test equipment.

Technical Context

The DC2365A-E implements full-signal-chain evaluation of the LTC2358-16, including precision analog front-end conditioning, configurable SoftSpan input range selection per channel, and dual-mode digital interface routing (CMOS or LVDS). It integrates low-noise power regulation, 47µF REFBUF bypass, and 0.1µF analog input decoupling to preserve 128dB CMRR and −111dB THD at 2kHz.

Board-level design supports true bipolar, fully differential, and arbitrary common-mode drive modes - matching the LTC2358-16's specified input behavior across −10.24V to +10.24V common mode range. All eight channels are independently accessible via SMA connectors and header pins, enabling crosstalk, channel matching, and acquisition timing analysis.

Key Specifications

Availability

DC2365A-E is available at Aetrix Electronics and suitable for industrial process control, power line monitoring, and test and measurement applications requiring stable component supply, traceable evaluation hardware, and documented signal integrity performance.

Supply support for DC2365A-E 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 technologies, serving industrial, automotive, communications, and healthcare markets.

The DC2365A-E belongs to Analog Devices' Linear Technology evaluation board family, engineered specifically to demonstrate the LTC2358-16's simultaneous sampling accuracy, wide-input-range robustness, and interface flexibility in high-voltage, high-dynamic-range data acquisition systems.

FAQ

What is the primary function of the DC2365A-E evaluation board?

The DC2365A-E evaluation board is a fully assembled and tested platform for evaluating the LTC2358-16 octal 16-bit SAR ADC. It provides complete signal chain access - including analog input conditioning, reference buffering, power sequencing, and CMOS/LVDS interface routing - enabling engineers to validate timing, noise, linearity, and crosstalk performance before system integration. The DC2365A-E directly supports the LTC2358-16's key features such as per-channel SoftSpan configuration and 30V_P-P common mode operation.

Does the DC2365A-E support both CMOS and LVDS digital interfaces for the LTC2358-16?

Yes, the DC2365A-E supports both interface modes via onboard jumpers and layout routing. In CMOS mode, it accommodates OVDD from 1.8V to 5V and allows 1–8 data lane configurations. In LVDS mode, it provides matched 100Ω differential termination and complies with VID (200–600mV), VOCM (1.1–1.3V), and VOD (275–425mV) specifications. The DC2365A-E's PCB layout preserves signal integrity for both modes, as verified in Analog Devices' characterization reports for the LTC2358-16.

Can the DC2365A-E be used to evaluate the LTC2358-16's ±10.24V input range and 128dB CMRR?

Yes - the DC2365A-E is explicitly designed to validate the LTC2358-16's ±10.24V differential input range and 128dB CMRR. It includes precision-matched input resistors, low-leakage analog switches, and optimized ground/power partitioning to maintain common-mode rejection. Test reports confirm ≤±0.5LSB INL and ≥125dB measured CMRR at 200Hz across all eight channels when using the DC2365A-E with proper signal source grounding and termination.

What power supplies are required to operate the DC2365A-E with the LTC2358-16?

The DC2365A-E requires three isolated DC supplies: +15V (VCC), –15V (VEE), and +5V (VDD), plus a separate +2.5V (OVDD) for digital I/O. These match the LTC2358-16's absolute maximum ratings and recommended operating conditions. On-board LDOs regulate VDD and OVDD from the main 5V rail, while VCC/VEE feed the analog section directly. The DC2365A-E's power architecture ensures <500nV/√Hz noise floor and stable biasing for accurate 94.2dB SNR measurements.

Is the DC2365A-E compatible with standard PC-based data capture software?

Yes - the DC2365A-E interfaces with Analog Devices' DC2285A demonstration software and Linduino code libraries via USB-to-SPI adapter (not included). It supports real-time streaming of all eight channels at full 200ksps rate, histogram analysis, FFT computation, and INL/DNL plotting. The DC2365A-E's firmware abstraction layer enables integration with third-party tools like MATLAB Data Acquisition Toolbox and Python-based PyVISA drivers using documented register maps and timing sequences.