LTC1665C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1665C' PDF : 18 Pages View PDF
LTC1665/LTC1660
TYPICAL APPLICATIONS
3.3V
R1
0.1μF
1
VOUT1
4
2
U2A
LT®1491
3
11
R1
A Low Power Quad Trim Circuit with Coarse/Fine Adjustment
3.3V
R2
0.1μF
GND
1
R1
COARSE VOUT A 2
DAC A
U1
LTC1665
DAC H
VCC
16
15 VOUT H
R1
COARSE
0.1μF
R2
R2
FINE VOUT B
3
DAC B
DAC G
R2
VOUT G
FINE
14
7
VOUT2
6
U2B
LT1491 5
R1
COARSE VOUT C
4
DAC C
DAC F
VOUT F
13
R1
COARSE
R2
R1
13 –
U2D
12 +LT1491
14
VOUT4
0.1μF
R2
R1
9–
U2C
10 +LT1491
8
VOUT3
3.3V 0.1μF
2
1
LTC1258-2.5
4
0.1μF
R2
FINE VOUT D
5
REF
6
CS/LD
7
3-WIRE
SERIAL
INTERFACE
SCK
8
DAC D
DAC E
CONTROL
LOGIC
ADDRESS
DECODER
SHIFT REGISTER
R2
VOUT E
FINE
12
CLR
11
DOUT
10
DIN
9
TO OTHER
LTC1665s
0.1μF
166560 TA01
R2 >> R1
VOUT 1 = VOUT A +
R1
R2
VOUT B
Similarly VOUT 2, VOUT 3, VOUT 4
Example: For R1 = 110Ω and R2 = 11k,
VOUT 1 = VOUT A + 0.01 VOUT B
166560fa
13
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