Datasheet

10
LTC1654
1654fb
OPERATIO
U
Table 1.
CONTROL
C3 C2 C1 C0
0000 Load Input Register n
0001 Update (Power-Up) DAC Register n
0010 Load Input Register n, Update (Power-Up) All
0011 Load and Update n
0100 Power Down n
0101 Fast n (Speed States are Maintained Even If DAC is
Put in Power-Down Mode)
0110 Slow n (Default State is Slow When Supplies are
Powered Up)
0111 Reserved (Do Not Use)
1000 Reserved (Do Not Use)
1001 Reserved (Do Not Use)
1010 Reserved (Do Not Use)
1011 Reserved (Do Not Use)
1100 Reserved (Do Not Use)
1101 Reserved (Do Not Use)
1110 Reserved (Do Not Use)
1111 No Operation
ADDRESS (n)
A3 A2 A1 A0
0000 DAC A
0001 DAC B
0010 Reserved (Do Not Use)
0011 Reserved (Do Not Use)
0100 Reserved (Do Not Use)
0101 Reserved (Do Not Use)
0110 Reserved (Do Not Use)
0111 Reserved (Do Not Use)
1000 Reserved (Do Not Use)
1001 Reserved (Do Not Use)
1010 Reserved (Do Not Use)
1011 Reserved (Do Not Use)
1100 Reserved (Do Not Use)
1101 Reserved (Do Not Use)
1110 Reserved (Do Not Use)
1111 Both DACs
INPUT WORD
C3
CONTROL ADDRESS DATA (14 + 2 DON'T CARE LSBs)
C2
C1
C0
A3
A2
A1
A0
D13
D12
D11 D10 D9 D8
D7
D6
D5 D4 D3 D2 D1
D0
X
X
1654 TABLE