WEL: Write Enable Latch-Volatile The WEL bit controls the access to the CCR and mem- ory array during a write operation. This bit is a volatile latch that powers up in the LOW (disabled) state. While the WEL bit is LOW, writes to the CCR or any array address will be ignored (no acknowledge will be issued after the Data Byte). The WEL bit is set by writing a "1" to the WEL bit and zeroes to the other bits of the Status Register. Once set, WEL remains set until either reset t0 0 (by writing a "0" to the WEL bit and zeroes to the other bits of the Status Register) or until the part pow- ers up again. Writes to WEL bit do not cause a non-vol- atile write cycle, so the device is ready for the next operation immediately after the stop condition.
PRODUCT HIGHLIGHTS 1. 2 ccS Conversion time with low power consumption. 2. 12C Compatible Serial Interface with pin selectable addresses. Two AD7992 versions allow five AD7992 devices to be connected to the same serial bus
*Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress ratmg only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
