【文件名】:08529@52RD_AD7843触摸屏数字转换器.pdf
【格 式】:pdf
【大 小】:277K
【简 介】:
【目 录】:FEATURES FUNCTIONAL BLOCK DIAGRAM
4-wire touch screen interface
+VCC PENIRQ
Specified throughput rate of 125 kSPS
Low power consumption:
1.37 mW max at 125 kSPS with V = 3.6 V PEN
CC AD7843 INTERRUPT
Single supply, VCC of 2.2 V to 5.25 V X+
X–
Ratiometric conversion
High speed serial interface Y+
Programmable 8-bit or 12-bit resolution Y– T/H
4-TO-1
2 auxiliary analog inputs I/P
MUX
Shutdown mode: 1 μA max
IN3 COMP
16-lead QSOP and TSSOP packages IN4
VREF GND
APPLICATIONS
CHARGE
Personal digital assistants REDISTRIBUTION
DAC
Smart hand-held devices
+VCC
Touch screen monitors
Point-of-sales terminals SAR + ADC