AD7997BRUZ-0

AD7997 is an 8-channel, low power, successive approximation ADC with an I²C-compatible interface. It provides a 2-wire serial interface that is compatible with I²C interface. This device normally remain in a shutdown state while not converting, and power up only for conversions. The conversion process can be controlled using the CONVST pin, by a command mode where conversions occur across I²C write operations or an automatic conversion interval mode selected through software control. On-chip limit registers can be programmed with high and low limits for the conversion result, and an open-drain, out-of range indicator output (ALERT) becomes active when the programmed high or low limits are violated by the conversion result. This output can be used as an interrupt.

• Conversion time is 2µs typ, signal to noise+distortion (SINAD) is 61dB min
• Total harmonic distortion (THD) is –75dB max, specified for VDD of 2.7V to 5.5V
• Low power consumption, pin-selectable addressing via AS
• Channel-to-channel isolation is –90dB typ at (FIN = 108Hz)
• Sequencer operation, automatic cycle mode
• I²C®-compatible serial interface supports standard, fast and high speed modes
• Resolution is 10bits, out-of-range indicator/alert function
• Shutdown mode is 1µA max
• Linearity error is ±0.5LSB max
• Operating temperature is –40°C to +85°C, packaging style is TSSOP

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party