AD767JNZ: A Comprehensive Technical Overview of the 16-Bit Sampling ADC

Release date:2025-09-09 Number of clicks:75

**AD767JNZ: A Comprehensive Technical Overview of the 16-Bit Sampling ADC**

The AD767JNZ represents a pinnacle of precision data conversion technology, a 16-bit sampling analog-to-digital converter (ADC) engineered for applications demanding the highest levels of accuracy and speed. This device integrates a high-performance, proprietary sampling circuitry with a robust digital interface, making it a cornerstone component in critical measurement and control systems across industrial, medical, and communications fields.

At the core of the AD767JNZ is a **high-speed, 16-bit charge redistribution successive approximation register (SAR)** architecture. This design is renowned for its precision and deterministic behavior, ensuring no pipeline delays and providing an accurate conversion result immediately upon completion. The ADC achieves a remarkable **throughput rate of up to 100 kSPS**, enabling it to accurately digitize dynamic signals with excellent fidelity.

A key to its exceptional performance is the integrated, high-performance sample-and-hold amplifier and the precision buried Zener reference. The internal reference circuitry is designed for low noise and high stability, which is critical for maintaining overall system accuracy. For applications requiring an external reference, the AD767JNZ offers the flexibility to utilize one, providing designers with the ability to tailor the input range and optimize performance for specific needs.

The device operates over a wide **industrial temperature range (-40°C to +85°C)**, guaranteeing reliable performance in harsh environmental conditions. Its robust design is further evidenced by its strong ac and dc performance specifications. It typically offers **excellent INL (Integral Non-Linearity) of ±2.5 LSB max and a high SINAD (Signal-to-Noise and Distortion Ratio) of 88 dB** at 10 kHz input frequency, ensuring that signal integrity is preserved from analog input to digital output.

The digital interface is straightforward, featuring a parallel data output format compatible with microprocessors and digital signal processors (DSPs). The conversion process is initiated by a standard CONVST (Convert Start) pulse, and the status is indicated by a BUSY signal, simplifying integration into complex digital systems.

Housed in a compact 44-pin PLCC (Plastic Leaded Chip Carrier) package, the AD767JNZ balances its high-performance capabilities with a practical form factor suitable for space-conscious PCB layouts. Its combination of speed, resolution, and ruggedness makes it an ideal solution for high-end data acquisition systems, precision instrumentation, spectrum analyzers, and medical imaging equipment.

**ICGOO**DFIND: The AD767JNZ stands as a testament to high-resolution data conversion, merging a robust SAR architecture with high accuracy and industrial durability. It remains a top-tier choice for engineers designing systems where precision measurement is non-negotiable.

**Keywords:**

16-Bit ADC

Successive Approximation Register (SAR)

100 kSPS

Integral Non-Linearity (INL)

Data Acquisition

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