Analog Devices Inc. EVAL-AD4116ASDZ

Overview

EVAL-AD4116ASDZ from Analog Devices is an evaluation board for the AD4116, a 24-bit sigma-delta ADC with integrated analog front end, ±10 V high-impedance (≥10 MΩ) voltage inputs, and buffered low-level direct ADC inputs. It supports up to 16 configurable channels, 12,422 SPS per channel scan rate (sinc5 + sinc1), and operates across −40°C to +105°C for industrial process control and PLC signal acquisition.

For engineers reviewing the EVAL-AD4116ASDZ datasheet, EVAL-AD4116ASDZ pinout, EVAL-AD4116ASDZ application, or EVAL-AD4116ASDZ equivalent, this page delivers verified hardware interface details, real-world test configuration guidance, supported ADC modes (sinc3/sinc5+sinc1), reference buffer behavior, and GPIO-controlled synchronization for multi-device systems.

Technical Context

The EVAL-AD4116ASDZ implements the full AD4116 signal chain: rail-to-rail input buffers, on-chip 2.5 V ±0.12% reference with 5 ppm/°C drift, dual digital filter paths (sinc3 for 48 µs settling, sinc5+sinc1 for 80 µs), and simultaneous 50 Hz/60 Hz rejection at 20 SPS. It exposes all 40 LFCSP pins-including VIN0–VIN10, ADCIN11–ADCIN15, REF+, REF−, and GPIO0–GPO3-via solderable headers and test points.

It supports both internal 4 MHz clock and external crystal (14–16.384 MHz) or CLKIO sources, enables continuous conversion, single conversion, and standby modes, and provides hardware-level access to ERROR, SYNC, and DOUT/RDY for interrupt-driven or synchronized multi-ADC operation.

Key Specifications

Availability

EVAL-AD4116ASDZ is available at Aetrix Electronics and suitable for industrial PLC modules, precision instrumentation test benches, and process control sensor interface development requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for EVAL-AD4116ASDZ 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 Wilmington, MA.

The EVAL-AD4116ASDZ belongs to Analog Devices' precision data acquisition evaluation platform family, designed specifically to accelerate validation of high-resolution, low-noise ADCs in harsh industrial environments with wide input ranges and stringent EMI immunity.

FAQ

What is the primary function of the EVAL-AD4116ASDZ evaluation board?

The EVAL-AD4116ASDZ evaluation board is a fully assembled and tested platform for evaluating the AD4116 24-bit sigma-delta ADC. It provides immediate access to all analog inputs (VIN0–VIN10, ADCIN11–ADCIN15), reference pins (REF+, REF−, REFOUT), digital interface signals (CS, SCLK, DIN, DOUT/RDY), and GPIOs (GPIO0–GPO3), enabling rapid prototyping of precision measurement systems without custom PCB design. The EVAL-AD4116ASDZ supports both single-supply and split-supply configurations as specified in the AD4116 datasheet Rev. 0.

Does the EVAL-AD4116ASDZ support external crystal or clock input?

Yes, the EVAL-AD4116ASDZ supports both external crystal (14–16.384 MHz) and external clock input via the XTAL2/CLKIO pin (Pin 13). The board includes footprint options and jumpers to configure either mode, matching the AD4116's dual-clock capability. When using an external clock, the EVAL-AD4116ASDZ routes the signal directly to the AD4116's CLKIO input, preserving timing integrity for applications requiring precise synchronization across multiple ADCs.

How does the EVAL-AD4116ASDZ handle the AD4116's high-impedance ±10 V inputs?

The EVAL-AD4116ASDZ maintains the AD4116's ≥10 MΩ input impedance by implementing guard rings, low-leakage PCB routing, and Kelvin-connected test points for VIN0–VIN10 and VINCOM. Input traces are isolated from noisy digital sections, and each analog input channel includes optional RC filtering (populated or unpopulated) to preserve signal fidelity. The board's layout strictly follows Analog Devices' grounding and layout recommendations from the AD4116 datasheet Rev. 0, Page 46, ensuring accurate evaluation of the ADC's specified ±10 V bipolar performance.

Can the EVAL-AD4116ASDZ be used for multi-ADC synchronization?

Yes, the EVAL-AD4116ASDZ includes a dedicated SYNC input (Pin 19) routed to the AD4116's SYNC pin, enabling deterministic synchronization of digital filters and analog modulators across multiple EVAL-AD4116ASDZ boards. This allows time-aligned sampling in distributed measurement systems. The board also exposes the ERROR pin (Pin 18) in open-drain configuration, permitting wired-OR fault signaling across multiple units-directly supporting the AD4116's multi-device synchronization architecture described in the datasheet Rev. 0, Pages 43 and 44.

What power supply configurations does the EVAL-AD4116ASDZ support?

The EVAL-AD4116ASDZ supports both single-supply (AVDD = 4.5–5.5 V, AVSS = 0 V, IOVDD = 2–5.5 V) and split-supply (AVDD = 2.5 V, AVSS = −2.5 V, IOVDD = 2–3.6 V) operation, mirroring the AD4116's dual-mode capability. On-board LDOs (REGCAPA, REGCAPD) provide clean analog and digital supplies, with dedicated decoupling capacitors (1 µF + 0.1 µF) placed per the AD4116 datasheet Rev. 0, Page 10. Power rails are accessible via screw terminals and test points, allowing flexible lab or system-level integration.