PMC System Monitor Specifications - DS956

Versal Prime Series Data Sheet: DC and AC Switching Characteristics (DS956)
Document ID
DS956
Release Date
2025-03-14
Revision
1.15 English
Table 1. PMC System Monitor Specifications
Parameter 1 Symbol Conditions 2 Min Typ Max Units
VCCAUX_SMON = 1.5V ±3%, VREFP = 1.024V 3 , VREFN = 0V, Tj = –40°C to 100°C, typical values at Tj = 40°C
ADC Accuracy 4
Resolution 10 – – Bits
Integral nonlinearity INL   –1 – 1 LSBs
Differential nonlinearity DNL No missing codes, guaranteed monotonic –1 – 1 LSBs
Offset error Calibrated –2 – 2 LSBs
Gain error Calibrated –0.4 – 0.4 %
Sample rate   0.25   MS/s
RMS code noise External 1.024V reference – – 1 LSBs
On-chip reference – – 1 LSBs
Analog Inputs
ADC input ranges

(VP–VN)

 Unipolar operation 0   1 V
Bipolar operation –0.5 – 0.5 V
ADC input common mode ranges Unipolar common mode range (FS input) 0 – 0.25 V
Bipolar common mode range (FS input) 0.5 – 0.6 V
Maximum external channel input ranges Adjacent channels set within these ranges should not corrupt measurements on adjacent channels –0.1 – VCCAUX_SMON V
On-Chip Sensors
Supply sensor error

Measurement range up to VCCAUX_SMON ±3%

Tj = –55°C to 125°C, internal or external reference

 –1 – 1 %
System Monitor Reference 5
External reference VREFP Externally supplied reference voltage 0.973 1.024 1.075 V
On-chip reference  

Tie VREFP to AGND, Tj = –40°C to 125°C

 1.019 1.024 1.029 V
  1. For more information, see the Versal Adaptive SoC System Monitor Architecture Manual (AM006).
  2. All the reference voltages required by the Versal device cannot sleep.
  3. All the accuracy specs are at VREFP = 1.024V (precisely). Variation in VREFP will cause a proportional gain error which should be added to see the true accuracy. The temperature range is in Kelvin so the gain error is proportional.
  4. Gross offset and gain errors are removed by automatic calibration. The specification quotes the net error.
  5. Any variation in the reference voltage from the nominal VREFP = 1.024V and VREFN = 0V will result in a deviation from the ideal transfer function. This also impacts the accuracy of the internal sensor measurements (i.e., temperature and power supply). However, for external ratiometric-type applications allowing the reference to vary by ±5% is permitted. On-chip reference variation is ±0.5%.