Analog Devices Inc. DC1716A

Overview

DC1716A from Analog Devices (formerly Linear Technology) is a demonstration board for the LTC2471 and LTC2473 16-bit I²C ΔΣ ADCs with integrated 1.25V precision reference. It supports both single-ended (LTC2471) and differential (LTC2473) configurations, operates from 2.7V to 5.5V, delivers 208sps or 833sps output rates, and enables low-power system monitoring and instrumentation applications.

For engineers reviewing the DC1716A datasheet, DC1716A pinout, DC1716A application, or DC1716A equivalent, this board provides validated hardware for evaluating 16-bit resolution, ±1 mV offset error, 0.01% gain error, 2 µA sleep current, and I²C interface timing compliance up to 400 kHz - critical for embedded sensor signal chains requiring high accuracy and ultra-low power.

Technical Context

The DC1716A implements the full functional interface of the LTC2471/LTC2473, including on-board 0.1 µF REFOUT and COMP decoupling capacitors, configurable A0 address jumper, pull-up resistors for SDA/SCL, and input filtering optimized for <1 LSB error with 1 kΩ–0.1 µF RC networks. It supports both DFN-12 (3 mm × 3 mm) and MSOP-12 package variants of the underlying ICs.

Board-level design incorporates thermal management for stable reference performance (±2 ppm/°C max drift), exposes all 12 pins via test points and headers, and includes VCC bypassing with parallel 10 µF + 0.1 µF ceramics per LTC2471/LTC2473 layout guidelines. No external oscillator or clock source is required due to the internal oscillator architecture.

Key Specifications

Availability

DC1716A is available at Aetrix Electronics and suitable for industrial process control, environmental monitoring, embedded ADC upgrades, and data acquisition systems requiring stable component supply, rapid evaluation turnaround, and production-ready reference design validation.

Supply support for DC1716A 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.

The DC1716A belongs to Linear Technology's legacy demonstration board family, designed specifically to accelerate evaluation and integration of precision delta-sigma ADCs into low-power, high-accuracy measurement systems.

FAQ

What is the primary function of the DC1716A evaluation board?

The DC1716A evaluation board is a fully assembled and tested hardware platform for evaluating the LTC2471 and LTC2473 16-bit I²C ΔΣ ADCs. It provides immediate access to all device features - including selectable 208sps/833sps output rates, integrated 1.25V reference, differential or single-ended input configurations, and ultra-low-power sleep mode - without requiring custom PCB design. The DC1716A enables rapid prototyping and characterization of precision sensor interfaces.

Does the DC1716A support both LTC2471 and LTC2473 devices?

Yes, the DC1716A is designed to support both the LTC2471 (single-ended input) and LTC2473 (differential input) in identical 12-pin DFN or MSOP packages. The board includes jumpers and layout provisions to accommodate either variant, and its schematic reflects the shared pinout and I²C interface common to both parts. Users can directly substitute either IC on the DC1716A without modification.

What power supply requirements does the DC1716A have?

The DC1716A accepts a single 2.7V to 5.5V DC supply, matching the native operating range of the LTC2471/LTC2473. It includes input reverse-polarity protection, bulk (10 µF) and high-frequency (0.1 µF) bypassing per IC layout recommendations, and dedicated test points for VCC and GND. No external clock or reference source is needed - the DC1716A relies entirely on the IC's internal oscillator and integrated reference.

How is I²C communication implemented on the DC1716A?

The DC1716A implements a fully compliant I²C interface with 1.7 kΩ pull-up resistors on SDA and SCL, test points for signal probing, and an A0 address selection jumper to configure the 7-bit slave address (0010100 or 1010100). It supports Fast Mode up to 400 kHz and includes proper bus termination and noise mitigation per LTC2471/LTC2473 timing specifications. All I²C functionality - including SPD and SLP register writes - is accessible via standard master controller commands.

Can the DC1716A be used for production-level design validation?

Yes, the DC1716A is intended for both evaluation and production design validation. Its layout follows Linear Technology's recommended practices - including ground plane integrity, REFOUT/COMP capacitor placement, input filtering, and thermal relief for the exposed pad - ensuring that measurements reflect true device performance. Schematics and layout files are publicly available from Analog Devices, enabling direct translation to custom designs using the DC1716A as a verified reference.