ZHCSH24G June 2016 – March 2019 TDA3LA , TDA3LX , TDA3MA , TDA3MD , TDA3MV
PRODUCTION DATA.
The analog-to-digital converter (ADC) module is a successive-approximation-register (SAR) generalpurpose analog-to-digital converter.
The main features of the ADC include:
Table 5-14 summarizes the ADC subsystem electrical specifications.
PARAMETER | CONDITIONS | MIN | NOM | MAX | UNIT |
---|---|---|---|---|---|
Analog Input | |||||
Full-scale Input Range | adc_vrefp | V | |||
Vref | Should be less than or equal to vdds_18v. | 1.62 | vdds_18v | V | |
Differential Non-Linearity (DNL) | -1 | 1 | LSB | ||
Integral Non-Linearity (INL) | adc_vrefp = vdds_18v | ±2 | LSB | ||
Gain Error | adc_vrefp = vdds_18v | ±4 | LSB | ||
Offset Error | adc_vrefp = vdds_18v | ±3 | LSB | ||
Input Sampling Capacitance | 3.2 | 5 | pF | ||
Input Frequency adc_in[7:0] | 0 | 30 | kHz | ||
Signal-to-Noise Ratio (SNR) | Input Signal: 30 kHz sine wave at -0.5 dB Full Scale | 50 | dB | ||
Total Harmonic Distortion (THD) | 1.8 Vpp, 30 kHz sine wave | 60 | dB | ||
Spurious Free Dynamic Range | 1.8 Vpp, 30 kHz sine wave | 60 | dB | ||
Signal-to-Noise Plus Distortion | 1.8 Vpp, 30 kHz sine wave | 50 | dB | ||
adc_vrefp Input Impedance | 20 | Ω | |||
Sampling Dynamics | |||||
Time from Start to Start | 17 | Clock Cycles | |||
Conversion Time + Error Correction | 10 + 1 | Clock Cycles | |||
Acquisition time | 4 | Clock Cycles | |||
Throughput Rate | CLK = 20 MHz (Pin : clk) | 1 | MSPS | ||
Channel to Channel Isolation | 90 | dB | |||
ADC Clock Frequency | See
Table 5-1 |
MHz |