AD9218BSTZ-80

The AD9218BSTZ-80 is a dual 10-bit, 80 MSPS (mega-samples per second) pipelined analog-to-digital converter (ADC) from Analog Devices. It belongs to the AD9218 family of low-power, high-performance ADCs designed for applications requiring simultaneous sampling of two channels. The device integrates on-chip track-and-hold circuits and a reference, enabling a compact solution.

Each channel provides 10-bit resolution with a sampling rate of 80 MSPS. The ADC features a 300 MHz analog bandwidth and a typical signal-to-noise ratio (SNR) of 57 dB measured at 41 MHz input frequency with an 80 MSPS encode clock. The analog input range is selectable between 1 V p-p and 2 V p-p. Crosstalk between channels is typically -75 dBc, ensuring good channel isolation.

The AD9218BSTZ-80 operates from a single 2.7V to 3.6V supply and consumes low power (275 mW per channel at 105 MSPS, with lower consumption at 80 MSPS). It supports differential or single-ended inputs and provides parallel digital outputs in twos complement or offset binary format. The device is housed in a 48-lead LQFP (7x7 mm) package for surface mount assembly.

Typical applications include battery-powered instruments, handheld scopemeters, low-cost digital oscilloscopes, I/Q communications, and ultrasound equipment. The AD9218 is pin-compatible with the 8-bit AD9288, offering an upgrade path for higher resolution.