Analog Devices Inc. DC1563A-H

Overview

DC1563A-H from Analog Devices (formerly Linear Technology) is a demonstration board for the LTC2312-14 - a 14-bit, 500ksps serial sampling SAR ADC in 8-lead TSOT-23 package. It operates from single 3V or 5V analog supply, integrates a low-drift (20ppm/°C max) 2.048V/4.096V reference, and delivers 77dB SINAD and –85dB THD at full speed. The board enables rapid evaluation of high-speed, low-power data acquisition in battery-operated and automotive systems.

For engineers reviewing the DC1563A-H datasheet, DC1563A-H pinout, DC1563A-H application, or DC1563A-H equivalent, this page provides verified functional context, real-world timing behavior, interface compatibility with 1.8V–5V logic, thermal performance across –40°C to 125°C, and direct hardware validation paths for signal integrity, power sequencing, and nap/sleep mode transitions.

Technical Context

The DC1563A-H implements the LTC2312-14 in its highest-grade H-temperature variant (–40°C to 125°C), configured with external 2.2µF ceramic bypass capacitors on VDD, REF, and OVDD per datasheet layout guidance. It supports SPI-compatible 3-wire serial interface (CONV/SCK/SDO) with no-cycle latency, 20MHz SCK max, and independent 1.8V–5V digital I/O supply (OVDD).

Board-level design enforces critical analog layout practices: dedicated ground plane, minimized trace lengths for AIN and REF, isolated analog/digital power domains, and proper decoupling to validate the LTC2312-14's 700ns acquisition time and 1300ns conversion time under real PCB parasitics. Nap mode wake-up (<50ns) and sleep mode recovery (1.1ms) are electrically confirmed via on-board test points.

Key Specifications

Availability

DC1563A-H is available at Aetrix Electronics and suitable for high-reliability data acquisition, automotive sensor interfaces, and battery-powered medical instrumentation requiring stable component supply and long-term production continuity.

Supply support for DC1563A-H 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 ICs for precision measurement and control.

The DC1563A-H belongs to Analog Devices' precision data converter evaluation platform family, designed specifically to accelerate validation of SAR ADCs in demanding industrial, automotive, and medical applications where AC performance, thermal stability, and low-power operation are critical.

FAQ

What is the primary function of the DC1563A-H?

The DC1563A-H is a fully assembled and tested demonstration board for the LTC2312-14 14-bit, 500ksps SAR ADC. It provides immediate hardware validation of the device's dynamic performance, power modes, reference accuracy, and SPI interface timing - eliminating prototype PCB development for initial system integration. DC1563A-H confirms real-world behavior of the LTC2312-14 under specified operating conditions.

Does DC1563A-H support both 3V and 5V operation of the LTC2312-14?

Yes, DC1563A-H supports both 3V and 5V analog supply operation as specified for the LTC2312-14. The board routes VDD to either 3.3V or 5V via jumper options and automatically configures the internal reference to 2.048V (at 3V VDD) or 4.096V (at 5V VDD). All decoupling and layout follow datasheet requirements for each voltage domain.

Can DC1563A-H be used to verify nap and sleep mode power transitions?

Yes, DC1563A-H includes test points and documented procedures to measure nap mode entry/exit (<50ns wake-up) and sleep mode recovery (1.1ms reference stabilization). The board validates the LTC2312-14's CONV pulse-counting sequence (2 pulses → nap, 4 pulses → sleep) and confirms current draw drops to <0.2µA in sleep mode, matching datasheet specifications.

Is the DC1563A-H compatible with 1.8V microcontrollers?

Yes, DC1563A-H supports 1.8V digital logic through its dedicated OVDD supply input, which accepts 1.71V–5.25V. When OVDD = 1.8V, SDO output swing and SCK/CONV input thresholds comply with 1.8V CMOS levels, enabling direct interfacing with low-voltage MCUs without level-shifting circuitry - a key feature confirmed on the DC1563A-H board.

Does DC1563A-H include provisions for analog input filtering?

No, DC1563A-H provides a direct AIN connection point optimized for low-impedance sources. For filtered inputs, users must add external RC networks (e.g., 50Ω + 470pF as recommended in the LTC2312-14 datasheet) between the signal source and the AIN test point. The board's layout preserves signal integrity up to the AIN pad, allowing controlled insertion of user-defined anti-aliasing or EMI filters without compromising reference or power routing.