JAJSLQ5C April 2021 – September 2022 ADS127L11
PRODUCTION DATA
AVDD2 is with respect to AVSS and powers the modulator core. AVDD2 can be connected to AVDD1 to simplify the required supply voltages, or AVDD2 can be operated by a lower supply voltage to minimize device power consumption. Use a combination of 1-µF and 0.1-µF bypass capacitors across the AVDD2 to AVSS supply pins.
Table 8-9 shows examples of AVDD1, AVSS, and AVDD2 power-supply configurations.
SUPPLY CONFIGURATION | HIGH-SPEED MODE | LOW-SPEED MODE | ||||
---|---|---|---|---|---|---|
AVDD1 | AVSS | AVDD2 | AVDD1 | AVSS | AVDD2 | |
Unipolar | 5 V | 0 V | 1.8 V to 5 V | 3 V to 5 V | 0 V | 1.8 V to 5 V |
Bipolar | 2.5 V | –2.5 V | 0 V to 2.5 V | 1.5 V to 2.5 V | –1.5 V to –2.5 V | 0.3 V to 2.5 V |