Real Time Clock (Rtc) IC Clock/Calendar 64b, 1kb I
Transport Package
8-Soic
Specification
Standard
Trademark
Microchip
Origin
Original
Production Capacity
91000/Month
Product Description
DEVICE OVERVIEW
The AD7991/AD7995/AD7999 are 12-/10-/8-bit, low power, successive approximation ADCs with an I2 C®-compatible interface. Each part operates from a single 2.7 V to 5.5 V power supply and features a 1 µs conversion time. The track-and-hold amplifier allows each part to handle input frequencies of up to 14 MHz, and a multiplexer allows taking samples from four channels.
Each AD7991/AD7995/AD7999 provides a 2-wire serial interface compatible with I2 C interfaces. The AD7991 and AD7995 come in two versions and each version has an individual I 2 C address. This allows two of the same devices to be connected to the same I2 C bus. Both versions support standard, fast, and high speed I2 C interface modes.
The AD7999 comes in one version. The AD7991/AD7995/AD7999 normally remain in a shutdown state, powering up only for conversions. The conversion process is controlled by a command mode, during which each I2 C read operation initiates a conversion and returns the result over the I 2 C bus.
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