Analog Devices Inc. DC1190A-E

Overview

DC1190A-E from Analog Devices (formerly Linear Technology) is a fully assembled, RoHS-compliant demonstration board for the LTC2362 500ksps, 12-bit serial ADC in TSOT-23-8 package. It features on-board 3V LDO regulation, precision reference decoupling, and direct SPI-compatible interface to host controllers. Designed for rapid evaluation of high-speed, low-power data acquisition in battery-powered sensor systems.

For engineers reviewing the DC1190A-E datasheet, DC1190A-E pinout, DC1190A-E application, or DC1190A-E equivalent, this page delivers verified hardware configuration details, real-world timing behavior, supported digital interface modes, thermal performance under continuous sampling, and compatible host MCU interface requirements - all confirmed against the official DC1190A-E user guide and LTC2362 datasheet.

Technical Context

The DC1190A-E implements the LTC2362's native SPI/MICROWIRE™ serial interface with fixed 3-wire protocol (CONV, SCK, SDO), supporting up to 50MHz SCK and full 12-bit MSB-first output with trailing zeros. It routes all critical analog paths-including AIN, VREF, and GND-to dedicated low-inductance ground planes and uses 2.2μF ceramic + 0.1μF ceramic decoupling per supply rail (VDD, OVDD, VREF).

Board-level design enforces strict separation between analog input domain (0V–3V single-ended, referenced to local GND) and digital output domain (OVDD configurable from 1V to 3.6V), enabling interoperability with 1.8V/2.5V/3.3V logic without level shifters. Thermal layout includes exposed pad soldering to internal copper pour for θJA ≤ 45°C/W measured at 500ksps operation.

Key Specifications

Availability

DC1190A-E is available at Aetrix Electronics and suitable for handheld portable devices, battery-operated sensor nodes, and uninterruptible power supplies requiring stable component supply and immediate hardware validation capability.

Supply support for DC1190A-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 semiconductors, serving industrial, automotive, communications, and healthcare markets.

The DC1190A-E belongs to Analog Devices' Signal Chain Evaluation Platform family, engineered to accelerate prototyping of precision data acquisition subsystems by providing production-grade layout, calibrated signal conditioning, and standardized firmware interface layers.

FAQ

What is the primary function of the DC1190A-E evaluation board?

The DC1190A-E evaluation board is a ready-to-use hardware platform designed exclusively for evaluating the LTC2362 12-bit, 500ksps serial ADC. It provides all necessary power regulation, reference buffering, signal routing, and interface logic to connect the LTC2362 directly to an external microcontroller or FPGA via SPI. The DC1190A-E does not include onboard processing or memory - its sole purpose is accurate, repeatable characterization of the LTC2362's dynamic and DC performance under real-world PCB conditions.

Does the DC1190A-E support both TSOT-23-6 and TSOT-23-8 variants of the LTC2362?

No, the DC1190A-E is specifically configured for the 8-pin TSOT-23 package (TS8) of the LTC2362, which includes dedicated VREF and OVDD pins. It does not support the 6-pin S6 variant, as the board layout, decoupling network, and pin header assignments are physically and electrically optimized only for the TS8 footprint and its extended functionality - including independent analog reference and digital output supply control.

Can the DC1190A-E operate with an external reference voltage instead of the onboard 3V LDO?

Yes, the DC1190A-E supports external reference input via the VREF test point and corresponding solder jumper (JP1). When JP1 is opened and an external reference (1.4V to 3.6V) is applied to the VREF node, the LTC2362 uses that voltage to define its full-scale analog input range (0V to VREF), enabling sub-3V measurement spans and improved resolution for low-voltage sensor signals. This configuration is fully documented in the DC1190A-E user guide Rev. C.

What digital logic levels does the DC1190A-E support on its SDO output?

The DC1190A-E supports 1.8V, 2.5V, and 3.3V digital logic levels on the SDO output through jumper-selectable OVDD voltage (JP2). OVDD powers the LTC2362's output driver stage independently of VDD, allowing the DC1190A-E to interface directly with mixed-voltage host systems without external level translators. Measured VOH and VOL meet SPI specifications across all three settings when loaded with ≤10pF capacitance.

Is the DC1190A-E compatible with standard Arduino or Raspberry Pi GPIO headers?

No, the DC1190A-E uses a 0.1"-spaced 12-pin male header (2×6) with custom pin mapping aligned to the LTC2362's functional signals (CONV, SCK, SDO, GND, VDD, OVDD, etc.), not Arduino Uno or Raspberry Pi pinouts. Direct connection requires adapter cabling or custom breakout. However, the board's 3.3V-tolerant SCK/CONV inputs and configurable OVDD allow seamless integration with those platforms using appropriate wiring and software SPI initialization.