AD7928BRUZ

The AD7928BRUZ from Analog Devices is a versatile 8-channel, successive approximation Analog-to-Digital Converter (ADC) available in 8-, 10-, and 12-bit resolutions. This specific model, AD7928BRUZ, offers 12-bit resolution and supports a fast throughput rate of up to 1 MSPS. It is designed for efficient operation with a wide input supply voltage range of 2.7 V to 5.25 V and features low power consumption, drawing a maximum of 2 mA at 3 V and 2.7 mA at 5 V when operating at maximum throughput.

The device includes a low-noise, wide bandwidth track-and-hold amplifier capable of handling input frequencies exceeding 8 MHz. Its high-speed serial interface is compatible with SPI, QSPI, MICROWIRE, and DSP standards, facilitating easy integration with microprocessors. The AD7928BRUZ features eight single-ended analog inputs and includes a channel sequencer for preprogrammed conversion selection. It is housed in a compact 20-lead TSSOP package, suitable for space-constrained applications.

Key electrical characteristics include a shutdown mode with a maximum current draw of 0.5 μA. The device also offers flexible power and serial clock speed management, with no pipeline delays. The analog input range can be configured as 0 V to REFIN or 0 V to 2 × REFIN, with selectable output coding.

This ADC is qualified for automotive applications and is supplied on a tape and reel for automated assembly processes. Its combination of speed, low power, and multiple input channels makes it suitable for various data acquisition systems.