SBAS653B April 2014 – October 2020 ADS4245-EP
PRODUCTION DATA
The device includes a mode where the contents of the internal registers can be read back. This readback mode may be useful as a diagnostic check to verify the serial interface communication between the external controller and the ADC. To use readback mode, follow this procedure:
The serial register readout works with both CMOS and LVDS interfaces on terminal 64.
When READOUT is disabled, the SDOUT terminal is in high-impedance state. If serial readout is not used, the SDOUT terminal must float.
PARAMETER(1) | CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
t1 | Power-on delay | Delay from AVDD and DRVDD power-up to active RESET pulse | 1 | ms | ||
t2 | Reset pulse width | Active RESET signal pulse width | 100 | ns | ||
1 | µs | |||||
t3 | Register write delay | Delay from RESET disable to SEN active | 350 | ns |