ZHCSG76A April 2017 – March 2025 INA233
PRODUCTION DATA
The MFR_ADC_CONFIG command settings control the operating modes for the device ADC. This command controls the conversion time settings for both the shunt and bus voltage measurements as well as the averaging mode used. The operating mode that controls what signals are selected to be measured is also set with this command. Reading with the MFR_ADC_CONFIG command can be done at any time without affecting the device settings or a conversion in progress. Writing with the MFR_ADC_CONFIG command halts any conversion in progress until the write sequence is completed, resulting in a new conversion starting based on the updated contents. This halt prevents any uncertainty in the conditions used for the next completed conversion.
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| — | — | — | — | AVG2 | AVG1 | AVG0 | VBUSCT2 |
| R-0 | R-1 | R-0 | R-0 | R/W-0 | R/W-0 | R/W-0 | R/W-1 |
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| VBUSCT1 | VBUSCT0 | VSHCT2 | VSHCT1 | VSHCT0 | MODE3 | MODE2 | MODE1 |
| R/W-0 | R/W-0 | R/W-1 | R/W-0 | R/W-0 | R/W-1 | R/W-1 | R/W-1 |
| Bit | Field | Type | Default | Description |
|---|---|---|---|---|
| 15 | — | R | 0 | Reserved. |
| 14 | 1 | |||
| 13:12 | 0 | |||
| 11 | AVG2 | R/W | 0 | Averaging mode. These bits determine the number of samples that are collected and averaged. Table 6-24 lists AVG bit settings and related number of averages for each bit setting. |
| 10 | AVG1 | R/W | 0 | |
| 9 | AVG0 | R/W | 0 | |
| 8 | VBUSCT2 | R/W | 1 | Bus voltage conversion time. These bits set the conversion time for the bus voltage measurement. Table 6-25 lists the VBUSCT bit options and related conversion times for each bit setting. |
| 7 | VBUSCT1 | R/W | 0 | |
| 6 | VBUSCT0 | R/W | 0 | |
| 5 | VSHCT2 | R/W | 1 | Shunt voltage conversion time. These bits set the conversion time for the shunt voltage measurement. Table 6-26 lists the VSHCT bit options and related conversion times for each bit setting. |
| 4 | VSHCT1 | R/W | 0 | |
| 3 | VSHCT0 | R/W | 0 | |
| 2:0 | MODE[3:1] | R/W | 1 | Operating mode. These bits select the continuous, triggered, or power-down mode of operation. These bits default to continuous shunt and bus measurement mode. Table 6-27 lists the mode settings. |
| AVG2 | AVG1 | AVG0 | NUMBER OF AVERAGES |
|---|---|---|---|
| 0 (default) | 0 (default) | 0 (default) | 1 (default) |
| 0 | 0 | 1 | 4 |
| 0 | 1 | 0 | 16 |
| 0 | 1 | 1 | 64 |
| 1 | 0 | 0 | 128 |
| 1 | 0 | 1 | 256 |
| 1 | 1 | 0 | 512 |
| 1 | 1 | 1 | 1024 |
| VBUSCT2 | VBUSCT1 | VBUSCT0 | CONVERSION TIME |
|---|---|---|---|
| 0 | 0 | 0 | 140 µs |
| 0 | 0 | 1 | 204 µs |
| 0 | 1 | 0 | 332 µs |
| 0 | 1 | 1 | 588 µs |
| 1 (default) | 0 (default) | 0 (default) | 1.1 ms (default) |
| 1 | 0 | 1 | 2.116 ms |
| 1 | 1 | 0 | 4.156 ms |
| 1 | 1 | 1 | 8.244 ms |
| VSHCT2 | VSHCT1 | VSHCT0 | CONVERSION TIME |
|---|---|---|---|
| 0 | 0 | 0 | 140 µs |
| 0 | 0 | 1 | 204 µs |
| 0 | 1 | 0 | 332 µs |
| 0 | 1 | 1 | 588 µs |
| 1 (default) | 0 (default) | 0 (default) | 1.1 ms (default) |
| 1 | 0 | 1 | 2.116 ms |
| 1 | 1 | 0 | 4.156 ms |
| 1 | 1 | 1 | 8.244 ms |
| MODE3 | MODE2 | MODE1 | MODE |
|---|---|---|---|
| 0 | 0 | 0 | Power-down (or shutdown) |
| 0 | 0 | 1 | Shunt voltage, triggered |
| 0 | 1 | 0 | Bus voltage, triggered |
| 0 | 1 | 1 | Shunt and bus, triggered |
| 1 | 0 | 0 | Power-down (or shutdown) |
| 1 | 0 | 1 | Shunt voltage, continuous |
| 1 | 1 | 0 | Bus voltage, continuous |
| 1 (default) | 1 (default) | 1 (default) | Shunt and bus, continuous (default) |