The OPA564-Q1 operates with excellent performance from single (7V to 24V) or dual (±3.5V to ±12V) analog supplies and a digital supply of 3.3V to 5.5V (referenced to the V– pin). The analog power-supply voltages do not need to be symmetrical, as long as the total voltage remains less than 24V. For example, the positive supply can be set to 14V with the negative supply at –10V. Most behaviors remain constant across the operating voltage range. Section 6.6 shows the parameters that vary significantly with operating voltage.

To prevent damage to the OPA564-Q1, ensure that the digital supply voltage (V_DIG) is applied before the supply voltage when sequencing power supplies. Figure 8-14 shows acceptable versus unacceptable power-supply sequencing.

(1) The power-supply sequence illustrated in (A) is not allowed because this power-supply sequence damages the device.

Figure 8-14 Power-Supply Sequencing