Analog Devices Inc. DC1383A-A

Overview

DC1383A-A from Analog Devices (formerly Linear Technology) is a demonstration circuit board designed to evaluate the LTC2451 - a 16-bit delta-sigma analog-to-digital converter with I²C interface, ±V_REF bipolar input range, <50nA average input current, and housed in an 8-pin 3×2mm DFN package. It enables rapid performance validation in precision sensor signal chains.

For engineers reviewing the DC1383A-A datasheet, DC1383A-A pinout, DC1383A-A application, or DC1383A-A equivalent, key considerations include its QuickEval™ compatibility, direct connection to DC590 USB Serial Controller, turret-post analog interfacing, exposed ground planes for low-noise prototyping, and software-supported DVM/strip chart/histogram data acquisition.

Technical Context

DC1383A-A implements the LTC2451 ADC in a fully assembled, calibrated evaluation platform with on-board LT6660-5 reference (selectable via JP1) and optimized layout for low-input-bias-current measurement. It supports I²C communication at standard and fast modes, delivers 16-bit resolution with no missing codes, and maintains <50nA average input current across the full ±V_REF input range.

The board features dedicated turret posts for Vin–, GND, VCC, and REF+, enabling flexible analog signal injection and reference sourcing. Its exposed ground planes allow direct soldering or clamping to external prototype circuits to minimize ground loop errors during characterization.

Key Specifications

Availability

DC1383A-A is available at Aetrix Electronics and suitable for precision sensor calibration, industrial process monitoring, and laboratory-grade data acquisition requiring stable component supply, traceable evaluation hardware, and validated ADC performance metrics.

Supply support for DC1383A-A 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies.

The DC1383A-A belongs to ADI's QuickEval™ family of demonstration boards and was engineered to accelerate evaluation of ultra-low-input-current delta-sigma ADCs in high-accuracy measurement applications.

FAQ

What is the primary function of the DC1383A-A demonstration board?

The DC1383A-A demonstration board is a complete evaluation platform for the LTC2451 16-bit delta-sigma ADC. It provides immediate I²C-based data acquisition capability, on-board voltage reference selection, turret-post analog connectivity, and seamless integration with the DC590 USB Serial Controller and associated software - all without requiring custom PCB design or firmware development. The DC1383A-A enables rapid validation of input bias current, noise, linearity, and conversion accuracy under real-world conditions.

Does the DC1383A-A require external power or can it be powered via USB?

The DC1383A-A receives power through the DC590 USB Serial Controller via the supplied 14-conductor ribbon cable; no separate power supply is needed. The board derives VCC and reference voltage from the DC590, and the LTC2451 operates from this rail. The VCC turret post is for monitoring only - drawing current from it may disrupt ADC performance. The DC1383A-A is not self-powered and does not accept standalone USB power.

Can the DC1383A-A be used without the DC590 controller?

Yes, the DC1383A-A can be used without the DC590 controller once the I²C interface signals (SDA, SCL, GND, VCC) are connected to a user-supplied microcontroller or host system. The board exposes all necessary I²C lines and supports standard/fast-mode timing. However, the factory-calibrated evaluation software, strip chart, histogram, and DVM features require the DC590 and Linear's software stack. The DC1383A-A remains fully functional as a hardware interface regardless of controller choice.

What is the role of JP1 on the DC1383A-A board?

JP1 on the DC1383A-A selects the REF+ source for the LTC2451: position A connects the on-board LT6660-5 precision 5.000V reference, while position B disconnects it and routes REF+ to the external Ref+ turret post. This allows users to evaluate the LTC2451 with either the calibrated internal reference or an external reference - critical for testing reference rejection ratio (RREJ), gain error, and absolute accuracy under varying reference conditions. The DC1383A-A documentation confirms JP1 functionality in the Hardware Set-Up section.

Is the DC1383A-A RoHS compliant and lead-free?

Yes, the DC1383A-A is RoHS compliant and uses lead-free assembly processes consistent with Analog Devices' manufacturing standards for evaluation boards. All components, including the LTC2451 DFN package, LT6660-5 reference, and passive elements, meet JEDEC J-STD-609 Category 1 marking requirements. The board carries the appropriate RoHS marking on its silkscreen, and compliance documentation is available upon request from Analog Devices' quality portal. The DC1383A-A meets EU Directive 2011/65/EU and subsequent amendments.