Analog Devices Inc. DC1190A-A

Overview

DC1190A-A from Analog Devices (formerly Linear Technology) is an evaluation board for the LTC2366 3Msps, 12-bit serial sampling ADC in TSOT-23-8 package. It enables rapid characterization of dynamic performance (72dB SINAD, –80dB THD at 3Msps), low-power operation (2.6mA @ 3V), and flexible reference/digital I/O configuration (VREF = 1.4V to VDD, OVDD = 1V to VDD). Designed for sensor interface and portable data acquisition systems requiring high sample-rate-to-power efficiency.

For engineers reviewing the DC1190A-A datasheet, DC1190A-A pinout, DC1190A-A application, or DC1190A-A equivalent, this page delivers verified hardware configuration details, real-world timing validation (tTHROUGHPUT = 333ns), SPI/MICROWIRE-compatible interface behavior, thermal derating guidance (–40°C to 125°C operation), and direct integration paths with FPGA/ASIC/DSP host controllers via 3-wire serial link.

Technical Context

The DC1190A-A implements a complete signal chain around the LTC2366: precision 4.7µF VREF and OVDD bypassing, low-inductance GND plane routing, optimized SCK trace length for 48MHz operation, and configurable analog input termination (0V to VREF range). Its layout enforces tight control over aperture jitter (0.3ns) and maintains <0.1% gain error across temperature.

It supports both continuous and burst-mode sampling, validates sleep mode entry/exit timing (tPOWER-UP = 333ns), and demonstrates full-scale linearity (±0.25 LSB INL) under real load conditions using the LTC2366's internal sample-and-hold. The board's CS/SCK/SDO routing complies with t2 ≥ 6ns setup and t4 ≥ 15ns access timing requirements.

Key Specifications

Availability

DC1190A-A is available at Aetrix Electronics and suitable for handheld terminal interface, battery-operated medical sensors, and automotive diagnostic modules requiring stable component supply and rapid prototyping capability.

Supply support for DC1190A-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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs.

The DC1190A-A belongs to Analog Devices' precision data acquisition evaluation platform family, engineered to accelerate design-in of high-speed, low-power SAR ADCs into space-constrained, thermally demanding applications.

FAQ

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

The DC1190A-A is a fully assembled and tested evaluation board designed specifically for the LTC2366 3Msps, 12-bit SAR ADC. It provides immediate access to all device pins, validated power delivery (VDD/VREF/OVDD), calibrated analog input path, and proven PCB layout for high-fidelity signal acquisition. Engineers use DC1190A-A to verify timing margins, characterize AC performance, and integrate the LTC2366 into target systems without custom hardware development.

Does DC1190A-A support both LTC2365 and LTC2366 devices?

No - DC1190A-A is configured exclusively for the LTC2366 (3Msps variant) in the 8-lead TSOT-23 package. Its layout, component values (e.g., 4.7µF VREF/OVDD bypass caps), and firmware examples are optimized for LTC2366's 48MHz SCK requirement and 333ns throughput time. The LTC2365 (1Msps) uses different timing and has distinct package variants (e.g., 6-lead S6), requiring separate evaluation hardware like DC1190A-B.

What voltage ranges does DC1190A-A support for VREF and OVDD?

DC1190A-A supports VREF from 1.4V to VDD (up to 3.6V) and OVDD from 1V to VDD, as specified in the LTC2366 datasheet. The board includes dedicated test points and jumper options to configure these supplies independently, enabling interoperability with 1.8V, 2.5V, or 3.3V digital logic families while maintaining full 12-bit resolution (342µV at 1.4V span).

How does DC1190A-A validate the LTC2366's sleep mode functionality?

DC1190A-A implements the exact CS/SCK sequencing required to enter and exit sleep mode per LTC2366 specification: CS HIGH + SCK HIGH for >100ns places the device in sleep (IDD ≈ 0.1µA), and a falling CS edge initiates wake-up with tPOWER-UP = 333ns. The board's onboard logic analyzer headers allow direct measurement of sleep current and wake latency, confirming compliance with the –40°C to 125°C operational envelope.

Can DC1190A-A be used for anti-aliasing filter development?

Yes - DC1190A-A includes unpopulated pads and routing for a 2nd-order passive RC anti-aliasing filter between the SMA input connector and AIN pin. This allows engineers to prototype and characterize filter response (e.g., cutoff tuning, group delay) while preserving the LTC2366's full-power bandwidth (30MHz at –3dB) and full-linear bandwidth (2.5MHz at SINAD ≥ 68dB), as validated in Figures 23656 G23 and 23656 F07.