The AD9283 is a complete 8-bit monolithic sampling analog-to-digital converter from Analog Devices, built for low cost, low power and small size. It integrates a high-performance track-and-hold and a reference, sampling at rates up to 100 MSPS (50, 80 and 100 MSPS grades exist) while drawing only 90 mW from a single 3 V supply. AD9283BRSZ-RL100 is the RoHS-compliant ("Z") 20-lead SSOP version on tape and reel.

What makes the AD9283 useful beyond its sample rate is the combination of a differential 1 V p-p input with a 475 MHz full-power analog bandwidth. That bandwidth, well above the Nyquist of a 100 MSPS clock, lets the part undersample IF signals: a carrier at tens or low hundreds of MHz can be sampled directly and digitized, which is why a fast, low-power 8-bit converter like this fits IF sampling receivers as well as baseband digitizing. The encode (clock) input is a single pin, and the 8-bit result appears on a TTL/CMOS-compatible parallel bus in offset binary.

Power is the other story. At 90 mW running and 4.2 mW in power-down, the AD9283 is built for battery and hand-held equipment where a fast ADC would normally drain the supply. The single 3 V analog rail with a separate DRVDD (2.5 V or 3.3 V) for the output drivers lets it interface cleanly to low-voltage logic. The 20-lead SSOP keeps the footprint small for portable instruments.

Note: Values are taken from the Analog Devices AD9283 datasheet. Confirm every parameter against the latest official documentation before committing a design.

AD9283BRSZ-RL100 is supplied in the 20-lead SSOP (Shrink Small Outline Package, ADI outline RS-20), a compact 0.65 mm-pitch surface-mount body. "Z" marks the RoHS-compliant lead-free finish and "RL100" the 100 MSPS speed grade on tape and reel. The SSOP keeps the footprint small for portable and hand-held instruments. For a fast 8-bit converter, separate the analog 3 V and the DRVDD output-driver rail and decouple both close to the package to hold SNR. Package dimensions and pin-1 orientation are shown below.

📄 Full specifications are detailed in the official Analog Devices AD9283 datasheet.

The 20-lead SSOP groups an analog input side, a digital output side and separate supplies:

• AIN, AIN (pins 6, 7): Differential analog input, 1 V p-p.
• ENCODE (pin 10): Sampling (encode) clock input; jitter here sets SNR at high input frequencies.
• VREF OUT / VREF IN (pins 2, 3): Internal reference output and reference input.
• D7-D0 (pins 11, 12, 13, 14, 17, 18, 19, 20): 8-bit parallel data output, offset binary; D7 (MSB) on pin 11, D0 (LSB) on pin 20.
• PWRDWN (pin 1): Power-down control (4.2 mW in power-down).
• VD / VDD (pins 5, 8, 15): Analog and digital-driver supplies.
• GND (pins 4, 9, 16): Ground returns.

Refer to the package drawing below for the full physical pin numbering of the 20-lead SSOP.

The parts below are related ADI high-speed ADCs, available in our catalog. They are not all drop-in replacements; verify resolution, sample rate, supply and pinout before substituting.

Selection Tips: Stay with the AD9283 for a low-power 8-bit 100 MSPS digitizer in portable equipment. Step down to AD9280 or AD9057 when the sample rate can be lower, use the dual AD9281 for two channels, move to AD9054 for higher sample rate, or choose the 10-bit AD9215 when more resolution is worth the extra power and board area.

Analog Devices, Inc. (ADI), headquartered in Wilmington, Massachusetts, USA, is a global leader in high-performance analog, mixed-signal and RF semiconductors, and one of the defining names in data conversion. The AD9283 belongs to ADI's high-speed ADC portfolio, where on-chip track-and-hold, wide analog bandwidth and low power are combined for cost-sensitive, portable digitizing.

ADI backs the AD9283 with full datasheet characterization, evaluation boards, and application support on clocking, input drive and layout for high-speed converters - guidance that directly affects whether the part reaches its datasheet SNR in a real board.