
5
LTC7545A
TYPICAL APPLICATIONS N
U
Unipolar Operation (2-Quadrant Multiplication)
ANALOG OUTPUT
VOUT
MSB
LSB
1111
– VREF (4095/4096)
1000
0000
– V
REF
(2048/4096) = – VREF/2
0000
0001
– V
REF
(1/4096)
0000
0V
DIGITAL INPUT
BINARY NUMBER
IN DAC LATCH
Table 1. Unipolar Binary Code Table
VDD VREF
LTC7545A
RFB
OUT1
DGND
AGND
3
2
17
16
4–15
18
5V OR 15V
VREF
–10V TO 10V
P
WR
CS
DB11 to DB0
19
20
1
33pF
0.1
F
VOUT
0V TO – VREF
7545A TA03
–
+
LT1097