Analog Devices Inc. AD7760BSVZ

Overview

AD7760BSVZ from Analog Devices is a 24-bit sigma-delta analog-to-digital converter (ADC) with on-chip differential amplifier buffering, 100 dB SNR at 2.5 MSPS, 120 dB dynamic range at 78 kHz, and fully differential modulator input. It delivers high-speed, high-precision data acquisition for vibration analysis and instrumentation systems requiring minimal external signal conditioning.

For engineers reviewing the AD7760BSVZ datasheet, AD7760BSVZ pinout, AD7760BSVZ application, or AD7760BSVZ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation value, and two confirmed alternative parts with documented functional and application-level differences.

Technical Context

The AD7760BSVZ employs a 40 MSPS analog sigma-delta modulator followed by a programmable low-pass FIR filter with default or user-defined coefficients. Its decimation engine supports 8× to 256× oversampling, enabling output word rates from 78 kHz to 2.5 MHz while maintaining monotonic 24-bit resolution.

It integrates an on-chip differential amplifier for input buffering and level shifting, a reference buffer, digital offset/gain correction registers, overrange alert, and SYNC-driven multi-device synchronization. Power modes include normal (958 mW), low power (661 mW), and standby (6.35 mW), all operating across −40°C to +85°C.

Key Specifications

Pinout & Package

The AD7760BSVZ is housed in a 64-lead exposed paddle TQFP package, optimized for thermal dissipation (θ_JA = 92.7°C/W) and industrial temperature operation (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-resolution sigma-delta ADC applications.

Compared with AD7760BSVZ, AD7762 offers higher dynamic range at lower speed but no synchronization or integrated buffering, while AD7763 trades parallel throughput and on-chip amplification for serial interface compactness - making AD7760BSVZ uniquely suited for high-speed, multi-channel, low-component-count instrumentation.

Availability

AD7760BSVZ is available at Aetrix Electronics and suitable for vibration analysis systems, portable data loggers, and industrial instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed authentic sourcing.

Supply support for AD7760BSVZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The AD7760BSVZ belongs to Analog Devices' precision sigma-delta ADC product line, engineered specifically for high-fidelity data acquisition systems where speed, resolution, and integration reduce system-level design complexity.

FAQ

What is the maximum output data rate of the AD7760BSVZ?

The AD7760BSVZ achieves a maximum fully filtered output word rate of 2.5 MSPS when configured with 8× decimation and a 40 MHz master clock. This rate delivers 100 dB SNR and supports input signals up to ~1 MHz, making it suitable for high-bandwidth applications like vibration analysis and real-time spectral monitoring. The AD7760BSVZ maintains monotonic 24-bit resolution across this full speed range.

Does the AD7760BSVZ include an on-chip buffer for sensor interfacing?

Yes, the AD7760BSVZ integrates a fully differential on-chip amplifier (VINA+/VINA− inputs, VOUTA+/VOUTA− outputs) that buffers and level-shifts analog signals prior to the sigma-delta modulator. This eliminates the need for external op-amps in many sensor interfaces - including IEPE accelerometers and Wheatstone bridges - reducing component count, board area, and calibration overhead in the final AD7760BSVZ-based design.

How does the SYNC pin function in multi-ADC systems using AD7760BSVZ?

The SYNC pin on the AD7760BSVZ accepts a falling-edge trigger that resets the internal digital filter phase, ensuring deterministic alignment of output data timing across multiple devices. When driven synchronously, several AD7760BSVZ units achieve sub-microsecond inter-channel skew - a requirement for phase-coherent multi-channel acquisition in structural health monitoring and acoustic beamforming applications.

What power supply configurations does the AD7760BSVZ require?

The AD7760BSVZ uses five independent supplies: AVDD1 (2.5 V for modulator), AVDD2 (5 V for analog circuitry), AVDD3 (3.3–5 V for differential amplifier), AVDD4 (3.3–5 V for reference buffer), and DVDD/VDRIVE (2.5 V and 1.65–2.7 V for digital/logic). Each supply has dedicated ground pins (AGND1–4, DGND) and strict decoupling requirements - including 100 nF + 10 µF for AVDD1 and series RC networks for AVDD4 - to maintain 100 dB SNR performance in the AD7760BSVZ.

Can the digital FIR filter in the AD7760BSVZ be reconfigured in-system?

Yes, the AD7760BSVZ supports downloading user-defined FIR filter coefficients via its parallel interface, allowing real-time adaptation of anti-aliasing or passband characteristics without hardware changes. The device ships with default coefficients optimized for flat group delay and sharp roll-off, but engineers can load custom 32-tap coefficients to meet unique spectral requirements - a capability confirmed in the AD7760BSVZ datasheet's "Programmable FIR Filter" section.