LTC1599 데이터 시트보기 (PDF) - Linear Technology
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LTC1599 Datasheet PDF : 20 Pages
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LTC1599
APPLICATIONS INFORMATION
5V
VREF
0.1µF
4
3
21
20 5
6
R1
RCOM R2 REF
VCC ROFS
RFB
33pF
8
DATA
INPUTS
14 TO 18,
21 TO 23
R1
R2
LTC1599
13
MLBYTE
MLBYTE
WR LD CLR CLVL
WR
LD
CLR
CLVL
12 11 24 10
ROFS RFB
16-BIT DAC
IOUT1 7
2–
6
LT1001
IOUT2F 8 3 +
IOUT2S 9
DGND 19
Unipolar Binary Code Table
DIGITAL INPUT
BINARY NUMBER
IN DAC REGISTER
MSB
LSB
1111 1111 1111 1111
1000 0000 0000 0000
0000 0000 0000 0001
0000 0000 0000 0000
ANALOG OUTPUT
VOUT
–VREF (65,535/65,536)
–VREF (32,768/65,536) = –VREF/ 2
–VREF (1/65,536)
0V
VOUT
0V TO –VREF
1599 F01
Figure 1. Unipolar Operation (2-Quadrant Multiplication) VOUT = 0V to – VREF
VREF
4
R1
5+
7
1/2 LT1112
6–
5V
0.1µF
3
2 1 20 5
6
RCOM
R2 REF VCC ROFS
RFB
33pF
8
R1
R2
DATA
INPUTS
LTC1599
14 TO 18,
21 TO 23
13
MLBYTE
MLBYTE
WR LD CLR CLVL
WR
LD
CLR
CLVL
12 11 24 10
ROFS RFB
16-BIT DAC
IOUT1 7
2–
1
1/2 LT1112
IOUT2F 8 3 +
IOUT2S 9
19
DGND
Unipolar Binary Code Table
DIGITAL INPUT
BINARY NUMBER
IN DAC REGISTER
MSB
LSB
1111 1111 1111 1111
1000 0000 0000 0000
0000 0000 0000 0001
0000 0000 0000 0000
ANALOG OUTPUT
VOUT
VREF (65,535/65,536)
VREF (32,768/65,536) = VREF/ 2
VREF (1/65,536)
0V
VOUT
0V TO VREF
1599 F02
Figure 2. Noninverting Unipolar Operation (2-Quadrant Multiplication) VOUT = 0V to VREF
sn1599 1599fs
11
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