Analog Devices Inc. EVAL-ADT7320FBZ

Overview

EVAL-ADT7320FBZ from Analog Devices is a flexible evaluation board designed for the ADT7320 ±0.25°C accurate, 16-bit digital SPI temperature sensor. It supports remote thermal sensing in high-temperature environments such as oil baths and ovens via high-temp wire connections, features onboard ADT7320UPCZ in 8-lead LFCSP package, and operates from USB power without external supply.

For engineers reviewing the EVAL-ADT7320FBZ datasheet, EVAL-ADT7320FBZ pinout, EVAL-ADT7320FBZ application, or EVAL-ADT7320FBZ equivalent, this page delivers verified hardware interface details, software control capabilities, thermal measurement accuracy context, and integration guidance for embedded temperature monitoring systems using SPI-based digital sensors.

Technical Context

The EVAL-ADT7320FBZ is a dedicated flex board that extends the main EVAL-ADT7x20EBZ platform, enabling physical separation between the host USB interface and the temperature sensor. It interfaces exclusively with the ADT7320 via SPI (SCLK, DIN, DOUT, CS) and requires no local power regulation - drawing VCC and GND from the main board.

Its layout uses 0.1 µF X7R ceramic decoupling (C1) and two 10 kΩ pull-up resistors (R1, R2) on SPI lines to ensure signal integrity at up to 25 MHz clock rates. The board implements the ADT7320UPCZ in an 8-lead 2 mm × 3 mm LFCSP package with exposed paddle, optimized for fast thermal response and minimal self-heating.

Key Specifications

Availability

EVAL-ADT7320FBZ is available at Aetrix Electronics and suitable for industrial process monitoring, automotive thermal validation, and embedded system qualification requiring stable component supply and traceable evaluation hardware.

Supply support for EVAL-ADT7320FBZ 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, headquartered in Norwood, MA.

The EVAL-ADT7320FBZ belongs to Analog Devices' precision temperature sensing evaluation platform family, engineered to accelerate development of high-accuracy thermal monitoring in harsh-environment applications.

FAQ

What is the primary function of the EVAL-ADT7320FBZ?

The EVAL-ADT7320FBZ is a flexible evaluation board that hosts the ADT7320UPCZ temperature sensor and connects to the main EVAL-ADT7x20EBZ board via high-temperature wires. Its purpose is to enable remote, high-fidelity thermal measurements - for example, inside ovens or oil baths - where the main USB-connected board cannot operate. The EVAL-ADT7320FBZ itself contains no active circuitry beyond the sensor and passive components, relying entirely on the host board for power and communication.

Does the EVAL-ADT7320FBZ require external power or drivers?

No, the EVAL-ADT7320FBZ draws all operating power (3.3 V) and ground from the main EVAL-ADT7x20EBZ board through its wired interface - no external supply or battery is needed. It also requires no separate drivers: full functionality is enabled by the ADT7x20 Evaluation Software installed from the included CD, which supports Windows 2000 through Windows 7 and handles SPI communication automatically. The EVAL-ADT7320FBZ does not contain a microcontroller or USB interface of its own.

How is the EVAL-ADT7320FBZ physically connected to the main evaluation board?

The EVAL-ADT7320FBZ connects to the main EVAL-ADT7x20EBZ board using six color-coded insulated wires: red (VCC), black (GND), white (SCLK), green (DIN), blue (DOUT), and yellow (CS). These wires are rated for high-temperature operation and terminate in a 10-pin terminal block (J2) on the main board. This wiring scheme matches the ADT7320's SPI interface and ensures noise-immune signal routing during remote sensing.

Can the EVAL-ADT7320FBZ be used independently without the main board?

No - the EVAL-ADT7320FBZ is not a standalone device. It lacks voltage regulation, USB interface, and firmware execution capability. It must be used in conjunction with the EVAL-ADT7x20EBZ main board, which provides USB connectivity, power conditioning, and the ADT7x20 Evaluation Software host interface. The EVAL-ADT7320FBZ functions only as a remotely mounted sensor node, with all configuration, data acquisition, and logging handled by the main board and PC software.

What software tools support the EVAL-ADT7320FBZ?

The EVAL-ADT7320FBZ is supported exclusively by the ADT7x20 Evaluation Software provided on CD with the EVAL-ADT7x20EBZ kit. This Windows-based application allows users to select the EVAL-ADT7320FBZ as the "External Board" location, configure the ADT7320's registers (including resolution, fault queue, and conversion mode), monitor real-time temperature in °C or ADC code, set alarm thresholds, and log data to Excel or text files. No third-party or custom firmware is required.