Analog Devices Inc. EVAL-AD7606-4EDZ

Overview

EVAL-AD7606-4EDZ from Analog Devices is an evaluation board for the AD7606-4 - a 4-channel, 16-bit, simultaneous-sampling analog-to-digital data acquisition system (DAS) supporting ±10 V/±5 V bipolar inputs, 200 kSPS per channel throughput, and integrated 2.5 V reference. It enables rapid validation of high-accuracy power monitoring, motor control, and industrial DAS designs.

For engineers reviewing the EVAL-AD7606-4EDZ datasheet, EVAL-AD7606-4EDZ setup, EVAL-AD7606-4EDZ interface configuration, or EVAL-AD7606-4EDZ compatibility with AD7606-4 hardware, this board provides verified signal chain routing, ESD-protected analog input conditioning, SPI/parallel interface support, and direct connection to FPGA/DSP host systems - all aligned with AD7606-4's timing, power, and layout requirements.

Technical Context

The EVAL-AD7606-4EDZ implements the full signal path of the AD7606-4 IC: second-order antialiasing filter (22 kHz −3 dB), 1 MΩ buffered analog inputs, clamp protection (±16.5 V tolerance), and dual-conversion-start (CONVST A/B) timing for true simultaneous sampling across four channels.

It supports all AD7606-4 interface modes - parallel (16-bit DB[15:0]), byte-mode (DB[7:0] + HBEN), and SPI/QSPI/MICROWIRE-compatible serial (DOUTA/DOUTB, SCLK, CS) - with on-board level-shifting for VDRIVE (2.3–5.25 V) and AVCC (5 V) compliance, plus REFIN/REFOUT access for internal/external reference validation.

Key Specifications

Availability

EVAL-AD7606-4EDZ is available at Aetrix Electronics and suitable for power-line monitoring, multiphase motor control, and instrumentation systems requiring stable component supply, fast evaluation turnaround, and production-representative signal integrity.

Supply support for EVAL-AD7606-4EDZ 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 precision measurement, industrial automation, and communications markets since 1965.

The EVAL-AD7606-4EDZ belongs to Analog Devices' precision data acquisition evaluation platform family, engineered to accelerate design-in of simultaneous-sampling ADCs in high-reliability industrial and energy infrastructure applications.

FAQ

What is the primary function of the EVAL-AD7606-4EDZ?

The EVAL-AD7606-4EDZ is a fully assembled and tested evaluation board designed specifically for the AD7606-4 4-channel, 16-bit, simultaneous-sampling ADC. It provides immediate hardware validation of analog input conditioning, digital interface timing, reference stability, and power sequencing - enabling engineers to verify system-level performance before custom PCB design. The EVAL-AD7606-4EDZ replicates the exact electrical environment required by the AD7606-4 IC.

Does the EVAL-AD7606-4EDZ support both ±10 V and ±5 V input ranges?

Yes, the EVAL-AD7606-4EDZ supports both ±10 V and ±5 V bipolar input ranges as defined by the AD7606-4 specification. The RANGE pin on the board is accessible via jumper or header, allowing users to configure the input range dynamically. Input clamping circuitry protects against overvoltage up to ±16.5 V, and the on-board analog front-end preserves the AD7606-4's 1 MΩ input impedance and second-order antialiasing filter response.

Which digital interfaces does the EVAL-AD7606-4EDZ enable for the AD7606-4?

The EVAL-AD7606-4EDZ supports all three AD7606-4 interface modes: parallel (16-bit DB[15:0] bus), byte-mode (8-bit transfers using HBEN and DB[7:0]), and serial (SPI/QSPI/MICROWIRE via DOUTA, DOUTB, SCLK, and CS). Level-shifting circuitry ensures compatibility with host logic voltages from 2.3 V to 5.25 V (VDRIVE), and all control signals (CONVST A/B, BUSY, FRSTDATA, RESET) are routed to headers for oscilloscope probing or FPGA/DSP connection.

Can the EVAL-AD7606-4EDZ operate with an external reference?

Yes, the EVAL-AD7606-4EDZ allows seamless switching between the AD7606-4's internal 2.5 V reference and an external reference source. The REFIN/REFOUT pin is brought out to a test point and header, and the REF SELECT control is accessible via solder jumper or GPIO header. When REF SELECT = 0, the internal reference is disabled and the external voltage (2.475–2.525 V) applied to REFIN/REFOUT becomes the ADC's reference - preserving full 16-bit linearity and matching AD7606-4's specified TUE of ±6 LSB (±10 V range).

Is oversampling supported on the EVAL-AD7606-4EDZ?

Yes, oversampling is fully supported and validated on the EVAL-AD7606-4EDZ. The OS[2:0] pins are accessible via headers, enabling selection of oversampling ratios from ×2 to ×64 per AD7606-4 specification. At ×16 oversampling, the board achieves 95.5 dB SNR and reduced 3 dB bandwidth - consistent with published AD7606-4 dynamic performance. Timing margins (tCONV, tWAKE-UP) and digital filter behavior are preserved per Rev. G datasheet conditions.