Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
DESCRIPTION
PT8214 is an 8-bit D/A Converter IC with operational amplifier output buffers. It supports up to a
maximum of 36 channels and provides two reference voltages which enable its 36 channels to be
used as 12 and 24 independent channels. Digital data are inputted in serially and is controlled by the
CLK and STB Pins making a cascading connection between devices. Available in 48 pins, LQFP
package, PT8214 is capable of large current drive since each channel has an operational amplifier
output buffer. Pin assignments and application circuit are optimized for easy PCB Layout and cost
saving advantages.
FEATURES
•
•
•
•
•
•
•
•
•
•
CMOS technology
Very low power consumption: Type 1.1mW/channel
Max. 2.5MHz serial data input
Separate supply voltages for digital and analog blocks
R-2R resistor ladder conversion method
On-chip operational amplifier output buffers: Max. +1.0/-1.0mA analog output sink/source current
capability
Analog data output range: 0 to Vcc (V)
Two analog output reference voltage
Analog data can be outputted in different reference voltages
Available in 48 pins, LQFP package
APPLICATIONS
•
•
•
•
•
•
Digital equipment
V8
CD ROM/VCD
MPEG
Sound card
Replacement for potentiometers
PT8214 V1.0
-1-
January, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
