Analog Devices Inc. AD7672CQ10

Overview

AD7672CQ10 from Analog Devices is a 16-bit, 100 kSPS successive approximation register (SAR) analog-to-digital converter (ADC) in a 28-lead CERDIP package, featuring ±0.5 LSB integral nonlinearity, 86 dB SNR, and on-chip reference buffer, used in precision data acquisition for industrial process control systems.

For engineers reviewing the AD7672CQ10 datasheet, AD7672CQ10 pinout, AD7672CQ10 application, or AD7672CQ10 equivalent, key selection criteria include sampling rate, INL performance, reference buffer integration, single-supply operation, and CERDIP packaging for high-reliability environments.

Technical Context

The AD7672CQ10 implements a SAR architecture with internal clock generation and supports unipolar/bipolar input ranges via external configuration. It operates from a single +5 V supply and includes an internal reference buffer to drive the ADC's reference input with low output impedance.

Conversion is initiated by a CNVST pulse, and data is read out serially or in parallel mode. The device requires no external clock for conversion timing and maintains monotonicity across its full temperature range of –40°C to +85°C.

Key Specifications

Pinout & Package

AD7672CQ10 is housed in a hermetically sealed 28-lead CERDIP (ceramic dual in-line package) with 0.6-inch width, rated for high-reliability applications including aerospace and military systems.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision SAR ADC applications.

Compared with AD7672CQ10, AD7671CQ offers higher speed at identical package reliability, while ADS8688IPWR trades ruggedness and temperature range for integrated signal chain functionality and smaller footprint-selection depends on whether throughput, ruggedization, or integration priority dominates the system architecture.

Availability

AD7672CQ10 is available at Aetrix Electronics and suitable for industrial process control, automated test equipment, and aerospace data acquisition requiring stable component supply despite its obsolete status.

Supply support for AD7672CQ10 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies.

The AD76xx family was designed for precision data acquisition in industrial, medical, and instrumentation systems where linearity, noise, and long-term stability are critical.

FAQ

Is AD7672CQ10 still in production?

No, AD7672CQ10 is officially obsolete per Analog Devices' product discontinuance notice. However, Aetrix Electronics maintains traceable inventory from authorized legacy channels and supports long-term procurement for existing designs that rely on the AD7672CQ10's specific CERDIP packaging and temperature performance.

What is the maximum sampling rate of AD7672CQ10?

The AD7672CQ10 achieves a guaranteed maximum sampling rate of 100 kSPS across its full operating temperature range. This rate is maintained without performance degradation due to internal clock generation and optimized SAR timing, making the AD7672CQ10 suitable for real-time control applications requiring consistent throughput.

Does AD7672CQ10 require an external reference voltage?

The AD7672CQ10 does not include an internal reference but features a buffered reference input (REFIN) that accepts a precise 2.5 V external reference. The on-chip buffer drives this input with low output impedance, eliminating the need for an external op-amp driver when using standard reference ICs with the AD7672CQ10.

Can AD7672CQ10 operate from a single supply?

Yes, AD7672CQ10 operates from a single +5 V supply for both analog and digital sections. This simplifies power system design and avoids the noise and complexity associated with dual-supply configurations-particularly beneficial in compact industrial I/O modules where the AD7672CQ10 is commonly deployed.

What package type is used for AD7672CQ10?

AD7672CQ10 is packaged in a 28-lead CERDIP (ceramic dual in-line package) with 0.6-inch body width. This hermetically sealed ceramic package provides superior moisture resistance, thermal stability, and long-term reliability-key requirements for the AD7672CQ10's target applications in aerospace and high-end test equipment.