SBAS817C November 2017 – November 2019 ADS8166 , ADS8167 , ADS8168
PRODUCTION DATA.
The device supports single-ended and pseudo-differential analog inputs. The device output is in straight binary format. Figure 40 and Table 2 show the ideal transfer characteristics for a 16-bit ADC with unipolar inputs.
Equation 1 gives the least significant bit (LSB) for the ADC:
DESCRIPTION | SINGLE-ENDED INPUT VOLTAGE
(VREF = 4.096 V) |
PSEUDO-DIFFERENTIAL INPUT VOLTAGE
(VREF = 4.096 V) |
OUTPUT CODE
(HEX) |
---|---|---|---|
FSR – 1 LSB | 4.0959375 V | 2.0479375 V | FFFF |
MID + 1 LSB | 2.0480625 V | 0.0000625 V | 8001 |
MID | 2.048 V | 0 V | 8000 |
MID – 1 LSB | 2.0479375 V | –0.0000625 V | 7FFF |
–FSR + 1 LSB | 0.0000625 V | –2.0479375 V | 0001 |
–FSR | 0 V | –2.048 V | 0000 |