SPRSP69B July 2023 – November 2023 TMS320F28P650DK , TMS320F28P659DK-Q1
PRODMIX
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PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
---|---|---|---|---|---|
General | |||||
ADCCLK Conversion Cycles | 200-MHz SYSCLK | 29.6 | 31 | ADCCLKs | |
Power Up Time | External Reference mode | 500 | µs | ||
Internal Reference mode | 5000 | µs | |||
Internal Reference mode, when switching between 2.5-V range and 3.3-V range. | 5000 | µs | |||
VREFHI input current(1) | 190 | µA | |||
Internal Reference Capacitor Value(2) | 22 | µF | |||
External Reference Capacitor Value(2) | 22 | µF | |||
DC Characteristics | |||||
Gain Error | Internal reference 2.5V | -720 | 720 | LSB | |
External reference | –64 | ±20 | 64 | LSB | |
Offset Error(6) | Internal reference 2.5V | -16 | ±6 | 16 | LSB |
External reference | –16 | ±6 | 16 | LSB | |
Channel-to-Channel Gain Error(4) | ±6 | LSB | |||
Channel-to-Channel Offset Error(4) | ±6 | LSB | |||
ADC-to-ADC Gain Error(5) | Identical VREFHI and VREFLO for all ADCs | ±6 | LSB | ||
ADC-to-ADC Offset Error(5) | Identical VREFHI and VREFLO for all ADCs | ±6 | LSB | ||
DNL Error | >–1 | ±0.5 | 1 | LSB | |
INL Error | –6 | ±1.5 | 6 | LSB | |
ADC-to-ADC Isolation | VREFHI = 2.5 V, synchronous ADCs | –2 | 2 | LSBs | |
ADC-to-ADC Isolation | VREFHI = 2.5 V, asynchronous ADCs | Not supported | LSBs | ||
AC Characteristics | |||||
SNR(3) | VREFHI = 2.5 V, fin = 100 kHz, SYSCLK from X1 via PLL | 83.5 | dB | ||
VREFHI = 2.5 V, fin = 100 kHz, SYSCLK from INTOSC via PLL | 78.2 | ||||
THD(3) | VREFHI = 2.5 V, fin = 100 kHz | –95 | dB | ||
SFDR(3) | VREFHI = 2.5 V, fin = 100 kHz | 93 | dB | ||
SINAD(3) | VREFHI = 2.5 V, fin = 100 kHz, SYSCLK from X1 via PLL | 83.2 | dB | ||
VREFHI = 2.5 V, fin = 100 kHz, SYSCLK from INTOSC via PLL | 78.1 | ||||
ENOB(3) | VREFHI = 2.5 V, fin = 100 kHz, SYSCLK from X1, Single ADC | 13.5 | bits | ||
VREFHI = 2.5 V, fin = 100 kHz, SYSCLK from X1, synchronous ADCs | 13.5 | ||||
VREFHI = 2.5 V, fin = 100 kHz, SYSCLK from X1, asynchronous ADCs | Not Supported | ||||
PSRR | VDD = 1.2-V DC + 100mV DC up to Sine at 1 kHz |
77 | dB | ||
VDD = 1.2-V DC + 100 mV DC up to Sine at 800 kHz |
74 | ||||
VDDA = 3.3-V DC + 200 mV DC up to Sine at 1 kHz |
77 | ||||
VDDA = 3.3-V DC + 200 mV Sine at 800 kHz |
74 |