AD9235BRUZ-20

The AD9235BRUZ-20 is a 12-bit, 20 MSPS analog-to-digital converter (ADC) from Analog Devices. It is part of the AD9235 family of monolithic, single 3 V supply ADCs featuring a high performance sample-and-hold amplifier (SHA) and voltage reference. The device uses a multistage differential pipelined architecture with output error correction logic to provide 12-bit accuracy at 20 MSPS data rates and guarantee no missing codes over the full operating temperature range of -40°C to 85°C.

Key electrical specifications include a typical signal-to-noise ratio (SNR) of 70 dBc and spurious-free dynamic range (SFDR) of 85 dBc to Nyquist at 65 MSPS (the 20 MSPS speed grade is specified similarly). The differential nonlinearity (DNL) is typically ±0.4 LSB, and power dissipation is 300 mW at 65 MSPS. The analog input voltage range is flexible from 1 V p-p to 2 V p-p. The ADC supports both differential and single-ended input configurations.

The device is housed in a 28-TSSOP (0.173", 4.40mm Width) surface mount package with a supplier device package of 28-TSSOP. It is designed for applications such as ultrasound equipment, IF sampling in communications receivers, battery-powered instruments, and low cost digital oscilloscopes. The data interface is parallel, and the reference can be either external or internal.