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LTC2634CMSE-HMX8#TRPBF
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
L
TC2634
25
2634fc
o
p
e
r
a
t
i
o
n
2634 F04
INPUT CODE
(4b)
(4a)
(4c)
OUTPUT
VOLTAGE
NEGATIVE
OFFSET
0V
2,048
0
0V
4,095
INPUT CODE
OUTPUT
VOLTAGE
V
REF
= V
CC
V
REF
= V
CC
INPUT CODE
OUTPUT
VOLTAGE
POSITIVE
FSE
Figure 4. Effects of Rail-to-Rail Operation on a DAC T
ransfer Cur
ve (Shown in 12 Bits)
(4a) Overall T
ransfer Function
(4b) Effect of Negative Offset for Codes Near Zero
(4c) Effect of Postitive Full-Scale Error for Codes Near Full-Scale
SDI
SDO
L
TC2634UD
SCK
5
6
7
6
7
6
7
DA
T
A OUTPUT
4
CS
/LD
SDI
SDO
SCK
5
4
CS
/LD
SDI
SDO
2634 F05
SCK
5
4
CS
/LD
CS
/LD
SCK
SDI
L
TC2634UD
L
TC2634UD
• • •
Figure 5. Daisy-Chain Operation (QFN Only)
L
TC2634
26
2634fc
t
y
p
i
c
a
l
a
p
p
l
i
c
a
t
i
o
n
–
+
DAC A
DAC D
L
TC2755
R
COM
1
R
IN1
60
0.1
µF
0.1
µF
0.1
µF
2
3
4
5
6
OUT
A
2
3
59
1
4
8
2
58
19
5
6
7
4
–15V
15V
8
R
OFS
A
R
FBA
R
VOS
A
GND
I
OUT1A
I
OUT2A
V
DD
15
5V
61
0.1
µF
0.1
µF
OUTC
–15V
30k
L
T1634-1.25
OUTB
0.1
µF
64
63
62
R
EFA
–
+
1/2 L
T1469
1/2 L
T1469
–
+
L
TC6240
15V
–15V
DAC C
+
–
+
–
DAC B
–15V
30k
–15V
30k
SERIAL
BUS
DAC A
DAC B
CS
/LD
SCK
10
2634 TA02
8
9
0.1
µF
1
GND
7
REF
L
TC2634MSE-LMI12
V
CC
SDI
DAC C
DAC D
M9
M3
M1
OUT
V
OUT
±5V
L
T1991
REF
V
EE
V
CC
8
9
10
P1
P3
P9
1
2
3
5V
0.1
µF
0.1
µF
4
7
5
6
15V
–15V
L
T1634-1.25
L
T1634-1.25
L
TC2634 DACs Adjusts L
TC2755-16 Offsets, Amplified with L
T
®
1991 PGA to ±5V
L
TC2634
27
2634fc
p
a
c
k
a
g
e
D
e
s
c
r
i
p
t
i
o
n
UD Package
16-Lead Plastic QFN (3mm
×
3mm)
(Reference L
TC DWG # 05-08-1691)
3.00
p
0.10
(4 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1.45
p
0.05
(4 SIDES)
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
PIN 1
TOP MARK
(NOTE 6)
0.40
p
0.10
BOTTOM VIEW—EXPOSED PAD
1.45
p
0.10
(4-SIDES)
0.75
p
0.05
R = 0.115
TYP
0.25
p
0.05
1
PIN 1 NOTCH R = 0.20 TYP
OR 0.25
s
45
o
CHAMFER
15
16
2
0.50 BSC
0.200 REF
2.10
p
0.05
3.50
p
0.05
0.70
p
0.05
0.00 – 0.05
(UD16) QFN 0904
0.25
p
0.05
0.50 BSC
PACKAGE OUTLINE
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
LTC2634CMSE-HMX8#TRPBF
Mfr. #:
Buy LTC2634CMSE-HMX8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC 8-Bit SPI Quad DAC (4.096V ref, Reset to Mid-Scale, Ext. Ref)
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
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Union
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