DESCRIPTION鈥?/div>
The
SP7512
and
HS3120
are precision 12-bit multiplying DACs, double鈥揵uffered for easy
interfacing with microprocessor busses. Both unipolar and bipolar operation can be accommo-
dated with a minimum of external components. The
SP7512
is available for use in commercial
and industrial temperature ranges, packaged in a 28-pin SOIC. The
HS3120
is available in
commercial and military temperature ranges, packaged in a 28鈥損in side鈥揵razed DIP.
(MSB)
Bit 1
9
22
10
2
11
3
12
4
13
5
14
6
15
7
16
8
17
9
10
18
19
(LSB)
11 BIT 12
20
VREF
4
CE
HBE
MBE
LBE
LDAC
INPUT REGISTER
25
24
23
CONTROL
LOGIC
INPUT REGISTER
INPUT REGISTER
R
5
6
FB1
I 01
I 02
FB 4
FB 3
21
DAC REGISTER
12 BIT MDAC
7
1
R/2
R/2
3
SP7512, HS3120
28
VDD1
26
VDD2
27
GND
8
GND
2
LDTR
Corporation
113
SIGNAL PROCESSING EXCELLENCE