Analog Devices Inc. AD7992BRMZ-0REEL

Description
The AD7992 is a 12-bit, low-power, successive approximation ADC with an I²C-compatible interface. It operates from a single 2.7 V to 5.5 V power supply and features a 2 µs 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 1.2 V to Voo. 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.

Features
12-bit ADC with fast conversion time: 2 µs typ
2 single-ended analog input channels
Specified for Voo 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
PC-compatible serial interface supports standard, fast, and high-speed modes
Out-of-range indicator/alert function
Pin-selectable addressing via AS2 versions allow 5 I²C addresses
Shutdown mode: 1 µA max
10-lead MSOP package

Applications
Data acquisition systems
Process control
Industrial automation
Medical instrumentation
Battery-powered systems
Remote sensing
Consumer electronics