DC934A - Schematic

5
1
R1
R2
R3
4.99K 4.99K 4.99K
1%
1%
1%
11
8
C3
0.1UF,16V
7
12
6
14
5
VCC
A0
WP
A1
SCL
A2
1
4
2
3
GND
E1
U7 (NOTE 3)
NC7WB66K8X
2
3
4
I2C ADDRESS
VCC
1B
OE1
OE2
2B
GND
2A
VCC
D
7
2
LDAC 3
SCL 4
JP7
CA2
SDA
5
CA2
6
1
E9
CA0
VOUTA
CA1
REFLO
LDAC
GND
SCL
REF
SDA
CA2
VCC
VCC
GND
B
C
6
VREF
E2
VREF
HD2X3-079
E5
GND
GND
6
OUT
C6
1UF,10V
C
VOUTB
12
11
10
9
8
7
REFLO
VOUTA
REFLO
EXT JP5
GND
R6
100
R7
7.5K
C9
100PF
VREF
VOUTB
R4
100
VCC
C7
0.1UF,16V
R5
7.5K
VREF
U2
LTC2422CMS
1
2
CH1
3
CH0
4
5
VCC
F0
FSSET
SCK
CH1
SDO
CH0
ZSSET
10
SCK
9
VCC
8
CS 7
GND 6
JP3
ADC
B
DISABLE
ENABLE
R8 R9
10K 100
C10
100PF
E6
E7
13
CA1
B
4
C12
0.1UF,16V
5
U1
LTC2607CDE
1
2
R11
10K
6
VCC
C8
0.1UF,16V
CA0
C5
1UF,10V
A
8
JP4
VCC CA0
JP6
CA1
IN
C11
1UF,10V
VCC
1A
OUT
1
4.096V 3
2.5V 5
U5
LT1790ACS6-2.5
4
1
6
JP1
VREF
E4
VCC
R10
10K
5.0V
SDA VSS 4
V+
E3
PWR GND
VOUTA
VOUTB
R12
7.5K
E8
NOTES: UNLESS OTHERWISE SPECIFIED
A
IN
GND
9
GND
10
U4
LT1790ACS6-4.096
V+
GND
GND
U6
24LC025
C
LDAC
C4
1UF,10V
MISO
13
8
3
GND
NC
5V REG
5V REF
MOSI
GND
EEGND
GND
CS
SCK
JP2
VCC
6
OUT
2
EESCL
IN
1
EESDA
VCC +5V
U3
LT1790ACS6-5
V+
4
MOSI 7
MISO 5
EEVCC
C2
1UF,10V
2
+5V
1
CS 6
SCK 4
1
C1
1UF,10V
5V 2
D
2
GND
V+
V+
3
2
J1
HD2X7-079-MOLEX
4
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
2. INSTALL SHUNTS ON JP1-JP7 PIN 1 AND 2.
3. U7 MULTIPLEXES THE SPI AND I2C BUSSES AND IS FOR
COMPATIBILITY WITH THE DC590 CONTROLLER BOARD ONLY.
5
4
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
3
CONTRACT NO.
APPROVALS
DRAWN:
APPROVED:
ENGINEER: MARK T.
DESIGNER:
TECHNOLOGY
KIM T.
CHECKED:
TITLE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
SCHEMATIC
16-BIT DUAL RAIL-TO-RAIL DAC WITH I2C INTERFACE
SIZE
A
DATE:
2
DWG NO.
DC934A-LTC2607CDE
Monday, September 26, 2005
SHEET
1
1
REV
A
OF 1
A
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