AD7490SRUZ-EP-RL7

AD7490-EP is a 16 channel, 1MSPS, 12bit successive approximation ADC with sequencer. The part operates from a single 4.75V to 5.25V power supply and features throughput rates upto 1MSPS. The part contains a low noise, wide bandwidth track-and hold amplifier that can handle input frequencies in excess of 1MHz. The conversion process and data acquisition are controlled using CS (active high) and the serial clock signal, allowing the device to easily interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS (active high), and conversion is also initiated at this point. There are no pipeline delays associated with the part. It uses advanced design techniques to achieve very low power dissipation at high throughput rates. By setting the relevant bits in the control register, the analogue input range for the part can be selected to be a 0V to REFIN input or a 0V to 2 × REFIN input, with either straight binary or twos complement output coding.

• 1MSPS max throughput rate at (VDD = 4.75V to 5.25V, -55°C to +125°C)
• Specified for VDD range from 4.75V to 5.25V (TA=-55°C to +125°C)
• Low power at maximum throughput rates
• Normal mode (operational) is 12.5mW maximum at (fSCLK = 20MHz, TA= -55°C to +125°C)
• 16 (single-ended) inputs with sequencer, wide input bandwidth
• Signal-to-noise ratio is 69.5dB minimum at (VDD = 4.75V to 5.25V, TA=-55°C to +125°C)
• Flexible power/serial clock speed management, no pipeline delays
• High speed serial interface, SPI/QSPI™/MICROWIRE™/DSP compatible
• Full shutdown mode is 0.02µA typical at (SCLK on or off, TA= -55°C to +125°C)
• 28 lead TSSOP package, operating temperature range from -55°C to +125°C

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