AD7997BRUZ-1

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

Notes

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