UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
The THS3091 can operate off a single supply or with dual supplies as long as the input CM voltage range (CMIR) has the required headroom to either supply rail. Operating from a single supply can have numerous advantages. With the negative supply at ground, the DC errors due to the –PSRR term can be minimized. Supplies should be decoupled with low inductance, often ceramic, capacitors to ground less than 0.5 inches from the device pins. The use of ground plane is recommended, and as in most high speed devices, it is advisable to remove ground plane close to device sensitive pins such as the inputs. An optional supply decoupling capacitor across the two power supplies (for split supply operation) improves second harmonic distortion performance.