PCA8591 PHILIPS [NXP Semiconductors], PCA8591 Datasheet - Page 21

• Manufacturer Part Number: PCA8591
• Description: 8-bit A/D and D/A converter
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Product specification
8-bit A/D and D/A converter
PCF8591
15 APPLICATION INFORMATION
Inputs must be connected to V
or V
when not in use. Analog inputs may also be connected to AGND or V
.
SS
DD
REF
In order to prevent excessive ground and supply noise and to minimize cross-talk of the digital to analog signal paths the
user has to design the printed-circuit board layout very carefully. Supply lines common to a PCF8591 device and noisy
digital circuits and ground loops should be avoided. Decoupling capacitors (>10 F) are recommended for power supply
and reference voltage inputs.
Fig.20 Application diagram.
1998 Jul 02
21