Intel® MAX® 10 FPGA Device Datasheet

ID 683794
Date 11/01/2021
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Dual Supply Devices ADC Performance Specifications

Table 35.  ADC Performance Specifications for Intel® MAX® 10 Dual Supply Devices
Parameter Symbol Condition Min Typ Max Unit
ADC resolution 12 bits
Analog supply voltage VCCA_ADC 2.375 2.5 2.625 V
Digital supply voltage VCCINT 1.15 1.2 1.25 V
External reference voltage VREF VCCA_ADC – 0.5 VCCA_ADC V
Sampling rate FS Accumulative sampling rate 1 MSPS
Operating junction temperature range TJ –40 25 125 °C
Analog input voltage VIN Prescalar disabled 0 VREF V
Prescalar enabled 43 0 3 V
Analog supply current (DC) IACC_ADC Average current 275 450 µA
Digital supply current (DC) ICCINT Average current 65 150 µA
Input resistance RIN 44
Input capacitance CIN 44
DC Accuracy Offset error and drift Eoffset Prescalar disabled –0.2 0.2 %FS
Prescalar enabled –0.5 0.5 %FS
Gain error and drift Egain Prescalar disabled –0.5 0.5 %FS
Prescalar enabled –0.75 0.75 %FS
Differential non linearity DNL External VREF, no missing code –0.9 0.9 LSB
Internal VREF, no missing code –1 1.7 LSB
Integral non linearity INL –2 2 LSB
AC Accuracy Total harmonic distortion THD FIN = 50 kHz, FS = 1 MHz, PLL –70 45 46 47 dB
Signal-to-noise ratio SNR FIN = 50 kHz, FS = 1 MHz, PLL 62 48 49 47 dB
Signal-to-noise and distortion SINAD FIN = 50 kHz, FS = 1 MHz, PLL 61.5 50 51 47 dB
On-Chip Temperature Sensor Temperature sampling rate TS 50 kSPS
Absolute accuracy –40 to 125°C,

with 64 samples averaging

52
±5 °C
Conversion Rate 53 Conversion time Single measurement 1 Cycle
Continuous measurement 1 Cycle
Temperature measurement 1 Cycle
43 Prescalar function divides the analog input voltage by half. The analog input handles up to 3 V input for the Intel® MAX® 10 dual supply devices.
44 Download the SPICE models for simulation.
45 Total harmonic distortion is –65 dB for dual function pin.
46 THD with prescalar enabled is 6dB less than the specification.
47 When using internal VREF, THD = 66 dB, SNR = 58 dB and SINAD = 57.5 dB for dedicated ADC input channels.
48 Signal-to-noise ratio is 54 dB for dual function pin.
49 SNR with prescalar enabled is 6dB less than the specification.
50 Signal-to-noise and distortion is 53 dB for dual function pin.
51 SINAD with prescalar enabled is 6dB less than the specification.
52 For the Intel® Quartus® Prime software version 15.0 and later, Modular ADC Core and Modular Dual ADC Core IP cores handle the 64 samples averaging. For the Intel® Quartus® Prime software versions prior to 14.1, you need to implement your own averaging calculation.
53 For more detailed description, refer to the Timing section in the Intel® MAX® 10 Analog-to-Digital Converter User Guide.