
7
LTC1415
12-BIT CAPACITIVE DAC
COMP
REF AMP
2.5V REF
REFCOMP
(4.096V)
CSAMPLE
D11
OVDD
OGND
D0
BUSY
CONTROL LOGIC
CS
CONVST RD
SHDN
INTERNAL
CLOCK
NAP/SLP
ZEROING SWITCHES
DVDD
AVDD
+AIN
–AIN
VREF
AGND
DGND
12
1415 BD
+
–
SUCCESSIVE APPROXIMATION
REGISTER
OUTPUT LATCHES
2k
FU CTIO AL BLOCK DIAGRA
UU
W
Load Circuits for Access Timing
Load Circuits for Bus Relinquish Time
1k
100pF
DBN
(A) VOH TO Hi-Z
(B) VOL TO Hi-Z
DBN
1k
5V
1415 TC02
1k
CL
DBN
(A) Hi-Z TO VOH AND VOL TO VOH
(B) Hi-Z TO VOL AND VOH TO VOL
DBN
1k
5V
1415 TC01
TEST CIRCUITS