Analog Devices Inc. DC2376A-B

Overview

DC2376A-B from Analog Devices (formerly Linear Technology) is a demonstration board for the LTC2664-16 quad 16-bit ±10V SoftSpan DAC with integrated 2.5V reference, 32-pin QFN package, SPI interface, and independently programmable output ranges (0V–5V, 0V–10V, ±2.5V, ±5V, ±10V). It enables rapid evaluation of rail-to-rail buffered analog outputs in precision instrumentation and industrial control systems.

For engineers reviewing the DC2376A-B datasheet, DC2376A-B pinout, DC2376A-B application, or DC2376A-B equivalent, this board provides full hardware access to all four DAC channels, MUX inputs/outputs, toggle control, LDAC/CLR functions, thermal monitoring, and configurable reference modes - supporting validation of settling time (≤9.5µs), INL (±4LSB max), monotonicity, and ±10mA drive capability under real load conditions.

Technical Context

The DC2376A-B implements the LTC2664-16 IC in a fully populated, ready-to-run configuration with on-board ±15V/5V power regulation, buffered reference distribution, and low-noise analog routing. It supports both hardware (MSPAN pins) and software (SPI register writes) configuration of output spans per channel, A/B toggle operation via TGP pin or command, and simultaneous update via LDAC.

It integrates auxiliary analog multiplexer inputs (MUXIN0–MUXIN3), MUXOUT for diagnostic monitoring, OVRTMP thermal interrupt reporting, and independent V+/V– supply decoupling - enabling system-level verification of crosstalk (<±4µV), load regulation (78µV/mA), and reference stability (10ppm/°C max) across temperature and supply variations.

Key Specifications

Availability

DC2376A-B is available at Aetrix Electronics and suitable for precision instrumentation, automatic test equipment, process control, optical networking, and data acquisition applications requiring stable component supply and validated DAC performance.

Supply support for DC2376A-B 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 for precision measurement and control.

The DC2376A-B belongs to Analog Devices' LTC evaluation board family, designed specifically to accelerate prototyping and validation of high-accuracy DACs in industrial, test, and medical systems where ±10V range, monotonicity, and low drift are critical.

FAQ

What is the DC2376A-B used for?

The DC2376A-B is an evaluation board for the LTC2664-16 quad 16-bit ±10V DAC. It provides complete hardware implementation-including power regulation, reference buffering, SPI interface, and analog I/O headers-to enable functional validation, performance characterization, and firmware integration of the LTC2664-16 in real-world systems before final PCB design.

Does the DC2376A-B support all LTC2664-16 output ranges?

Yes, the DC2376A-B supports all five SoftSpan output ranges of the LTC2664-16: 0V to 5V, 0V to 10V, ±2.5V, ±5V, and ±10V. Each channel's range can be set independently via SPI commands or fixed at power-up using the MSPAN pins (MSP0–MSP2), as documented in the LTC2664 datasheet and DC2376A-B user guide.

Can the DC2376A-B operate with a single supply?

Yes, the DC2376A-B supports single-supply operation by tying the V– pin of the LTC2664-16 to ground - enabled via onboard jumper configuration. In this mode, unipolar ranges (0V–5V, 0V–10V) are fully functional, and the DAC outputs remain rail-to-rail with respect to GND and V+ (up to +15.75V), per the LTC2664's specified operation.

How is the reference configured on the DC2376A-B?

The DC2376A-B defaults to the LTC2664-16's internal 2.5V reference, buffered to all four DAC channels. An external reference (0.5V to VCC–1.75V) can be applied via the REF header, with REFCOMP pin capacitance (0.1µF to GND) maintained for stability. Reference selection is controlled by SPI register bits or hardware disable via REFCOMP tie-down.

Does the DC2376A-B include thermal protection monitoring?

Yes, the DC2376A-B exposes the LTC2664-16's OVRTMP pin as a dedicated header. This open-drain N-channel output pulls low when die temperature exceeds 160°C and releases on the next CS/LD rising edge. A pull-up resistor is pre-installed, allowing direct connection to host MCU interrupt lines for thermal event handling in the DC2376A-B system.