AD9028JZ
AD9028JZ - 8-Bit 300 MSPS Flash ADC | Analog Devices
The Analog Devices AD9028JZ is an 8-bit flash-method analog-to-digital converter with a 300 MSPS conversion rate, one single-ended input, and parallel output access in a 68-terminal ceramic LCC-68 package. According to the verified distributor data, its analog and digital operating-voltage ranges are -5.46 V to -4.94 V, while its commercial temperature grade covers 0 °C to 70 °C.
A flash ADC is a parallel-comparison data converter that evaluates an analog input against multiple internal reference thresholds simultaneously. Within the ADC hierarchy, the AD9028JZ belongs to the flash-converter family, the ADC category, and the broader data-converter and semiconductor ecosystem. Its architecture provides direct conversion without the multistage pipeline commonly associated with higher-resolution converters, making it suitable for systems that require rapid sampling and digital parallel data rather than a low-resolution, very-high-rate serial interface.
The verified listings identify 8-bit resolution, a 300 MSPS sampling rate, one single-ended analog input, parallel access, commercial temperature grade, and a 68-terminal ceramic package. These characteristics make the device relevant to high-speed instrumentation, pulse-processing systems, digital oscilloscope or signal-analysis front ends, and industrial control loops. The parallel interface also allows captured samples to be transferred directly into digital logic or parallel-processing hardware without a serial-output protocol.
Operationally, the AD9028JZ requires negative analog and digital supply voltages. The verified operating ranges of -5.46 V to -4.94 V indicate that the circuit must accommodate a negative 5 V rail rather than conventional positive supply rails. Designers should treat power sequencing, bypass-capacitor placement, reference stability, clock distribution, and input-signal conditioning as system-level responsibilities. The supplied search data does not expose the complete clock, input-range, reference-voltage, power-consumption, or bit-timing tables, so those values must be confirmed in the manufacturer datasheet before a new design is released.
Typical application candidates include digital oscilloscope acquisition channels, pulse and waveform analysis, high-speed closed-loop monitoring, communications test equipment, and embedded real-time signal processing. The 300 MSPS sampling rate is the principal selection criterion when individual samples must be captured at short intervals, while 8-bit resolution defines the digitization granularity. Applications requiring greater dynamic range, differential inputs, serial data transport, or automatic gain control need a different converter architecture rather than a direct assumption of equivalence.
Because the AD9028JZ uses a legacy-style 68-terminal ceramic package, PCB planning requires the manufacturer package drawing and a complete pin map. The verified distributor snippets identify the package as ceramic LCC-68 and also describe a square QFP-style package code, but they do not provide a trustworthy pin-by-pin assignment. Engineers should not assign signals or power pins from package shape alone; verify every terminal against the Analog Devices datasheet and compare land patterns before layout release.
This page consolidates the verified AD9028JZ specifications, pricing status, package information, source links, and engineering cautions into a design-focused product record. It also distinguishes documented facts from missing electrical details, helping engineers evaluate the 8-bit, 300 MSPS converter efficiently without mistaking unverified substitute or pinout information for manufacturer data.
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