LTC2757 Linear Technology, LTC2757 Datasheet - Page 18

• Manufacturer Part Number: LTC2757
• Description: 18-Bit SoftSpan IOUT DAC
• Manufacturer: Linear Technology

LTC2757
TYPICAL APPLICATIONS
18
ALTERNATE AMPLIFIER FOR OPTIMUM SETTLING TIME PERFORMANCE
READ
I
BAT54S
I
UPD
CLR
OUT2F
OUT2S
WR
D/S
ZETEX
REF
5V
Figure 2. Basic Connections for SoftSpan V
for Driving I
36
35
34
33
20
21
6
5
FOR MULTIPLYING APPLICATIONS, U2 = LT1468 AND C2 = 15pF
1
2 3
WR
UPD
READ
D/S
CLR
M-SPAN
1, 2
R
6
IN
GE
ADJ
R1
OUT2
48
LT1468
LTC2757
3, 37, 38
5
6
47
R
from GND with a Force/Sense Amplifi er
COM
+
–
–
+
SPAN I/O
S2-S0
LT1012
18-BIT DAC WITH SPAN SELECT
3
2
3
U2
200Ω
150pF
200Ω
C2
R2
8-16, 23-31
7
1000pF
45, 46
REF
DATA I/O
D17-D0
16
43, 44
R
OUT
OFS
V
V
39
OSADJ
OSADJ
*SCHOTTKY BARRIER DIODE
DAC with Two Optional Circuits
I
I
OUT2S
OUT2F
41, 42
R
FB
I
I
OUT1
OUT2
GND
2757 F02
V
5
6
DD
1
2
40
5, 6
4, 7
17
6
3
ZETEX*
BAT54S
C3
0.1μF
LT1012
2
3
5V
C1
27pF
–
+
–15V
15V
4
8
LT1468
–
+
U1
2
3
0.1μF
0.1μF
1
V
www.DataSheet4U.com
OUT
2757f