ADG821Production
The ADG821 / ADG822 / ADG823 are monolithic CMOS single-pole, single-throw (SPST) switches. These switches are designed on an advanced submicron process...
Datasheet ADG821 on Analog.com
The user inquired about the VINH/VINL voltage levels for the ADG821 digital input at Vdd=1.8V. The support engineer noted that the ADG821 is not fully characterized at 1.8V and suggested considering the ADG811, which is fully characterized at Vdd=1.8V with VINH = 0.65 x Vdd and VINL = 0.35 x Vdd, suitable for battery-powered measuring instruments.
AI Generated Content
Hi,
ADG821 can operate from 1.8V to 5.5V.
Please tell me the VINH/VINLvoltage of the digital input at Vdd=1.8V.
I checked the reports about the device however, we do not have data available for the Vdd range above. The ADG821 can work at 1.8V but it hasn’t been fully characterized.
You might want to consider using ADG811, Quad x SPST switches, as an alternative. The ADG811 also has <1 ohm on resistance and is fully characterized at Vdd=1.8V with VINH = 0.65 x Vdd and VINL = 0.35 x Vdd.
