AD7992BRMZ-0REEL

AD7992 is a 12bit, low power, successive approximation ADC with an I²C-compatible interface. The part operates from a single 2.7V to 5.5V power supply and features a 2µs conversion time. The part contains a 2-channel multiplexer and track and-hold amplifier that can handle input frequencies upto 11MHz. It provides a 2-wire serial interface compatible with I²C interfaces. This device normally remains in a shutdown state while not converting, and powers 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. It requires an external reference in the range of 1.2V to VDD. This allows the widest dynamic input range to the ADC.

• 2 single-ended analogue input channels, low power consumption
• Automatic cycle mode, sequencer operation
• I²C®-compatible serial interface supports standard, fast, and high speed modes
• Out-of-range indicator/alert function, pin-selectable addressing via AS
• 2 versions allow 5 I²C addresses, shutdown mode is 1µA maximum
• Signal-to-noise ratio is 71dB minimum at (VDD = 2.7V to 5.5V)
• Total harmonic distortion is -78dB maximum at (VDD = 2.7V to 5.5V)
• Full power bandwidth is 11MHz typical at (VDD = 2.7V to 5.5V)
• Conversion time is 2µs typical at (VDD = 2.7V to 5.5V)
• Operating temperature is -40°C to +125°C, package style is 10-lead MSOP

注释

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