The AMC0136
operates in one of the following states:
- OFF-state: The low-side of
the device (AVDD) is not supplied. The device is not responsive and DOUT is
in high-impedance state. Internally, DOUT is clamped to DVDD and DGND by ESD
protection diodes.
- Missing high-side supply:
DVDD is supplied within the 推奨動作条件.
VAVDD is below the AVDDUV threshold. The device
outputs a constant bitstream of logic 0's, as described in the Output Behavior in Case of a Missing High-Side Supply section.
- Input voltage range violation
(full-scale input): VAVDD and VDVDD are supplied
within the respective recommended operating conditions but the input voltage
VIN exceeds the clipping voltage (|VIN| >
|VClipping|). The device outputs a fixed pattern, as
described in the Output Behavior in Case of a Missing High-Side Supply section.
- Normal operation:
VAVDD, VDVDD, and VIN are within the
recommended operating conditions. The device outputs a digital bitstream as
explained in the Digital Output section.
Table 6-1 Device Operational
Modes
OPERATING CONDITION |
VDVDD |
VAVDD |
VCM (VINP
+ VINN) / 2 |
VIN (VINP
– VINN) |
DEVICE RESPONSE |
OFF |
VDVDD < DVDDUV |
Don't care |
Don't care |
Don't care |
DOUT is in a Hi-Z state. DOUT is clamped to DVDD and DGND by
ESD protection diodes. |
Missing high-side supply |
Valid(1) |
VAVDD < AVDDUV |
Don't care |
Don't care |
DOUT is constantly low. |
Input voltage range violation |
Valid(1) |
Valid(1) |
Valid(1) |
|VIN| > VClipping |
The device outputs a single 1 or a single 0 every
128th clock cycle |
Normal operation |
Valid(1) |
Valid(1) |
Valid(1) |
Valid(1) |
Normal operation. |
(1) Valid means within recommended operating conditions.