A 4-layer PCB with a solid ground plane and a separate analog and digital power plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a low-ESR capacitor for power decoupling.
Handle the device by the body, not the leads. Use an anti-static wrist strap or mat to prevent electrostatic discharge. Avoid bending or flexing the leads, and use a soldering iron with a temperature-controlled tip.
The recommended input signal range is 0 to 5V, with a maximum input voltage of 6V. Signals exceeding 6V can cause damage to the device.
For single-ended input, connect the input signal to the IN+ pin and tie the IN- pin to ground. For differential input, connect the input signals to the IN+ and IN- pins, ensuring the signals are 180 degrees out of phase.
A low-pass filter with a cutoff frequency of 100 kHz to 1 MHz is recommended to remove high-frequency noise and aliasing. Use a 2nd-order or 3rd-order filter with a -3 dB point at the desired cutoff frequency.
PGA308AIDGST datasheet
by Texas Instruments
