SLOS224J July 1999 – February 2024 THS4031 , THS4032
PRODUCTION DATA
The THS403x family can operate off a single supply or with dual supplies. Choose supplies that provide for the required headroom to supply rails as specified by the common-mode input range (CMIR). Operating from a single supply can have numerous advantages. With the negative supply at ground, the DC errors due to the –PSRR term are minimized. Supplies must be decoupled with low inductance capacitors to ground as close to the amplifier as possible. When operating on a board with high-speed digital signals, make sure to provide isolation between digital signal noise and the analog input pins. When using a ground plane, removing the ground plane close to input sensitive pins reduces stray parasitics that adversely impact device performance. For split-supply operation, an optional supply decoupling capacitor across the two power supplies improves second harmonic distortion performance.