ADI AD7992BRMZ-1REEL

The AD7992 is a 12-bit, 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 up to 11 MHz. The AD7992 provides a 2-wire serial interface compatible with I²C interfaces. The part comes in two versions, the AD7992-0 and the AD7992-1, and each version allows for at least two different I²C addresses. The AD7992-0 supports standard and fast I²C interface modes, and the AD7992-1 supports standard, fast, and high speed I²C interface modes. The AD7992 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. The AD7992 requires an external reference in the range of 1.2V to VDD. This allows the widest dynamic input range to the ADC. 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 conversion result violates the programmed high or low limits. This output can be used as an interrupt.

• 12-bit ADC with fast conversion time: 2μs typ
• 2 single-ended analog input channels
• Specified for VDD of 2.7 V to 5.5 V
• Low power consumption
• Fast throughput rate: up to 188 kSPS
• Sequencer operation
• Temperature range: -40°C to 125°C
• Automatic cycle mode
• 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: 1μA max
• 10-lead MSOP package