LTC2755
24
2755f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2008
LT 0308 • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT1027 Precision Reference 1ppm/°C Maximum Drift
LT1236A-5 Precision Reference 0.05% Maximum Tolerance, 1ppm 0.1Hz to 10Hz Noise
LT1468 16-Bit Accurate Op-Amp 90MHz GBW, 22V/µs Slew Rate
LT1469 Dual 16-Bit Accurate Op-Amp 90MHz GBW, 22V/µs Slew Rate
LTC1588/LTC1589/
LTC1592
Serial 12-/14-/16-Bit I
OUT
Single DAC Software-Selectable (SoftSpan) Ranges, ±1LSB INL, DNL, 16-Lead SSOP Package
LTC1591/LTC1597 Parallel 14-/16-Bit I
OUT
Single DAC Integrated 4-Quadrant Resistors
LTC2704 Serial 12-/14-/16-Bit V
OUT
Quad DACs Software-Selectable (SoftSpan) Ranges, Integrated Amplifi ers, ±1LSB INL
LTC2751 Parallel 12-/14-/16-Bit I
OUT
SoftSpan
Single DAC
±1LSB INL, DNL, Software-Selectable (SoftSpan) Ranges, 5mm × 7mm
QFN-38 Package
LTC2753 Parallel 12-/14-16-Bit I
OUT
SoftSpan Dual
DACs
±1LSB INL, DNL, Software-Selectable (SoftSpan) Ranges, 7mm × 7mm
QFN-48 Package
–
+
IC1A
LT1469
LTC2755-16
U1
LT1236S
U6
R
VOSA
R
OFSB
V
REF
V
REF
R
OFSA
R
FBB
REFBR
COM1
R
IN1
2
1
3
8
4
IN OUT
TRIM
GND
V
+
V
+
V
–
REFA R
FBA
I
OUT1A
I
OUT1B
I
OUT2B
I
OUT2A
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
S2
S1
S0
A2
A1
A0
2
3
4
5
12
13
14
15
1
2
4
26
5
V
DD
2755 TA03
15 64
63
53 54 55 62 61 60
C20
10µF
C13
10µF
C22
.001µF
DATA I/O
SPAN I/O
4
5
6
7
8
9
10
11
12
36
37
38
39
40
41
42
1
52
47
16
17
18
DAC
ADDRESS
–
+
IC1B
LT1469
6
7
5
8
4
V
OUTA
59
58
R
VOSB
R
VOSC
I
OUT1C
I
OUT1D
I
OUT2D
I
OUT2C
R
VOSD
57
56
46
C1
30pF
C2
30pF
–
+
IC2A
LT1469
2
1
3
V
OUTB
V
+
V
–
34
–
+
IC2B
LT1469
6
7
5
8
4
V
OUTC
27
26
25
24
14
C1
30pF
C1
30pF
–
+
IC3A
LT1469
2
1
3
V
OUTD
V
+
V
–
WRUPDREADD/S CLR MSPAN GND
R
OFSC
R
OFSD
R
FBC
REFCR
COM2
R
IN2
REFD R
FBD
–
+
450k
450k
OUT
REF
4pF
150k
50k
M9
M3
6
5
M1
8
16 6
5V
9
10
1
2
3
50k
150k
450k
P1
P3
P9
450k
4pF
7
4
U4
V
CC
LT1991
V
EE
V
CC
V
REF
U2
LTC2600
GND
V
–
V
+
DACA
DACB
DACC
DACD
DACE
DACF
DACG
DACH
CS/LD
SCK
SDI
SDO
CLR
7
8
9
10
11
SPI
INTERFACE
TO ADDITIONAL
OFFSET ADJUST
CIRCUITS
•
•
•
504948 51 20 33 19 32 31 30 29 28 21 22 23
CONTROL
REF2
–
+
IC3B
LT1469
6
7
5
C21
001
AMPLIFIER
A2
AMPLIFIER A1
Digitally Controlled Offset Trim Circuit. Powering V
DD
from LT1236 Ensures Quiet Supply
