DC1684A - Demo Manual

DEMO MANUAL
DC1684A-A /DC1684A-B
LTC2758/LTC2752
Dual SPI IOUT
18-Bit/16-Bit DACs
Description
Demonstration circuit 1684A-A features the LTC®2758A
18-bit SoftSpan™ IOUT DAC. DC1684A-B features the
pin-compatible 16-bit LTC2752A. The digital interface is
a simple, 4-wire Serial Peripheral Interface (SPI), augmented with separate CLEAR and LDAC pins that reset
the output to zero and load the DAC code, respectively.
These devices feature six output ranges: 0V to 5V, 0V to
10V, ±5V, ±10V, ±2.5V, and –2.5V to 7.5V. These ranges
are programmable through the SPI interface or through
separate span control pins if SoftSpan operation is not
needed. Voltage input offset and gain adjustment pins
facilitate trimming of residual DC errors without impacting
the excellent temperature stability of this device.
The DC1684A-B uses LT®1468 amplifiers recommended
for 16-bit applications. The DC1684A-A uses low noise,
low offset LT1012A amplifiers for reference inversion, and
a composite amplifier for I-V conversion that provides
18-bit accuracy and fast settling. Amplifier selection is
detailed in the LTC2758 and LTC2752 data sheets.
Design files for this circuit board are available at
http://www.linear.com/demo/DC1684A
L, LT, LTC, LTM, µModule, Linear Technology and the Linear logo are registered trademarks
and SoftSpan and QuikEval are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Board Photo
RIBBON CABLE TO
DC590 CONTROLLER
DAC
CONNECTIONS
ANALOG POWER
SUPPLY
(NORMALLY ±15V)
dc1684aa/ab F01
Figure 1. Connection Diagram
dc1684aabfb
1
DEMO MANUAL
DC1684A-A /DC1684A-B
Quick Start Procedure
Connect a low noise ±15V power supply to the AMPV+,
GND, and AMPV– turret posts on the DC1684A board.
Connect J1 to a DC590 USB serial controller using the
supplied 14-conductor ribbon cable. Connect DC590 to a
host PC with a standard USB A/B cable. Run the evaluation
software supplied with the DC590, or download it from
www.linear.com/software. The correct control panel will
be loaded automatically (shown in Figure 2). The software
automatically sets the LTC2758A / LTC2752A outputs ac-
cording to the entries in the control panel. A square wave
option is available to test the settling time. The MSPAN
jumper should be set to 0 if software span control is desired. Setting MSPAN high (1) causes the S2, S1 and S0
pins to set the span according to the table printed on the
board. The corresponding span should be selected in the
software to ensure that the calculated DAC code is correct.
Additional software documentation may be available from
the Help menu item, as features may be added periodically.
Figure 2. Software Screenshot
dc1684aabfb
2
DEMO MANUAL
DC1684A-A /DC1684A-B
Hardware Setup
JUMPERS
ANALOG CONNECTIONS (TURRET POSTS)
MSPAN: Manual Span Control Pin. MSPAN is used to
configure the LTC2758/LTC2752 for operation in a single,
fixed output range. If MSPAN is 1, it will be configured for
single span use. If MSPAN is 0, it will be set through the
QuikEval™ software. Default position is 0 (low).
OUTA/B: DAC Voltage Outputs.
S0, S1, S2: Used to set the fixed output range if MSPAN
is 1.
Table 1. MSPAN Configuration
S2
S1
S0
SPAN
0
0
0
0V to 5V
0
0
1
0V to 10V
0
1
0
±5V
0
1
1
±10V
1
0
0
±2.5V
1
0
1
–2.5V to 7.5V
GEADJA, GEADJB: Gain Adjust Pins. If no adjustments are
required, select GND. Selecting EXT connects the pin to
the turret, allowing external adjustment to null gain error
or compensate for reference errors.
VOSADJA,VOSADJB: Offset Adjustment Selection for
DACA or DACB. If no offset adjustment is required, select
GND. Selecting EXT connects the offset pin to the turret,
allowing external adjustment of offset.
VREFA,VREFB: Select Source for VREF on Either DACA
or DACB. 5V connects to onboard LTC6655 5V reference;
EXT connects to the turret, allowing an external reference
to be used.
VREFA/B: DAC Reference Voltages. If the on-board LTC6655
references are selected, the voltage may be measured at
these points. If a remote reference is selected, then an
external reference must be applied to these points.
VOSADJA/B: DAC Offset Adjust Inputs. Use only if the VOSA
jumper is set to EXT. The nominal range of these pins is
±5V, which will provide ±2048LSB of offset adjustment.
GEADJA/B: Gain Adjust Pins. These voltage-control pins
can be used to null gain error or to compensate for reference errors. The nominal range of these pins is ±5V, which
will provide ±2048LSB of gain adjustment.
POWER AND GROUND CONNECTIONS
Analog Power: The AMPV+, AMPV –, and GND turret
posts are the analog supplies for the on-board DAC amplifiers. These should be connected to a well regulated, low
noise ±15V power supply.
VCC: Connection to VCC. See the Schematic Diagrams
and the description for the VCC jumper.
Grounding: Separate power and signal grounds are provided. Signal grounds are the turrets closest to OUTA and
OUTB. Use these for measurement ground and output
return. Power GND is between the AMPV+ and AMPV –
turrets.
VCC: Select Source for 5V VCC Supply. Set to 5V for supply by on-board LTC6655 reference (recommended). Set
to REG to be supplied by regulated supply from DC590
controller and remove the jumper to supply externally.
CLR: Asynchronous Clear Input. Tie to 0 to set all DAC
outputs to 0V.
LDAC: Asynchronous DAC Load Input. Tie to 0 to update
all DACs if CS is high.
RFLAG: Reset Flag Output. Remove jumper and probe
middle pin for RFLAG status.
dc1684aabfb
3
DEMO MANUAL
DC1684A-A /DC1684A-B
Parts List
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
Required Circuit Components
1
15
C1, C2, C3, C5, C6, C11-C20
CAP., X5R, 10µF, 10V, 20%, 1206
TDK, C3216X5R1A106M
2
8
C4, C7, C36, C37, C38, C39,
C40, C41
CAP., X7R, 0.1µF, 10V, 10%, 0603
AVX, 0603ZC104KAT2A
3
2
C10, C21
CAP., X7R, 0.01µF, 10V, 10%, 0603
AVX, 0603ZC103KAT2A
CAP., COG, 100pF, 50V, 10%, 0603
AVX, 06035A101KAT2A
4
2
C22, C31
5
0
C23, C29 (OPT.)
6
0
C27, C34 (OPT.)
CAP., 0603
7
3
D1, D2, D3
DIODE, BAT54C, SOT23
DIODE, ZETEX, BAT54C-7-F
8
1
J1
CONNECTOR, HD2X7-079
MOLEX, 87831-1420
9
14
JP1-JP14
3-PIN, 0.079", SINGLE ROW HEADER
SAMTEC, TMM103-02-L-S
10
14
XJP1-XJP14
SHUNT, 0.079", CENTER
SAMTEC, 2SN-BK-G
11
2
JP15, JP16
0.01" JUMPER, SHUNT, SOLDER DOWN
SAMTEC, JL-100-25-T
12
1
R1
RES., CHIP, 88.7k, 1/16W, 1%, 0603
VISHAY, CRCW060388K7FKEA
13
5
R2, R31-R34
RES., CHIP, 10k, 1/16W, 1%, 0603
NIC, NRC06F1002TRF
14
3
R3, R4, R5
RES., CHIP, 4.99k, 1/16W, 1%, 0603
NIC, NRC06F4991TRF
15
7
R11-R17
RES., CHIP, 10k, 1/16W, 5%, 0603
NIC, NRC06J103TRF
16
16
TP1-TP16
TURRET, TEST POINT
MILL-MAX, 2308-2-00-80-00-00-07-0
LINEAR TECHNOLOGY, LTC6655CHMS8-5#TRPBF
17
1
U2
I.C., LTC6655CHMS8-5, MSOP-8
18
0
U3 (OPT.)
I.C., LT1236ACS8-5, SO-8
19
1
U4
I.C., 24LC025, TSSOP-8
MICROCHIP, 24LC025 I /ST
20
1
U5
I.C., LT1761ES5-5, SOT23-5
LINEAR TECHNOLOGY, LT1761ES5-5#TR
21
1
U6
I.C., LT1964ES5-5, SOT23-5
LINEAR TECHNOLOGY, LT1964ES5-5#TRPBF
22
1
U10
I.C., LT1761ES5-BYP, SOT23-5
LINEAR TECHNOLOGY, LT1761ES5-BYP#TRPBF
dc1684aabfb
4
DEMO MANUAL
DC1684A-A /DC1684A-B
Parts List—1684A-A
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
Required Circuit Components
1
1
1684A GENERAL BOM
2
2
C24, C30
CAP., COG, 100pF, 50V, 5%, 1206
AVX, 12065A101JAT2A
3
4
C25, C26, C32, C33
CAP., X7R, 1µF, 16V, 10%, 1206
AVX, 1206YC105KAT2A
4
0
C28, C35 (OPT.)
CAP., 1206
5
6
R6, R9, R21, R22, R25, R30
RES., CHIP, 1k, 1/16W, 5%, 0603
VISHAY, CRCW06031K00JNEA
6
4
R7, R8, R23, R24
RES., CHIP, 10k, 1/16W, 5%, 0603
NIC, NRC06J103TRF
7
0
R10, R20, R26, R29 (OPT.)
RES., CHIP, 0603
8
2
R18, R27
RES., CHIP, 4.02k, 1/16W, 1%, 0603
YAGEO, RC0603FR-074K02L
9
2
R19, R28
RES., CHIP, 10, 1/16W, 5%, 0603
NIC, NRC06J100TRF
10
1
U1
I.C., LTC2758ACLX, 48-LX
LINEAR TECHNOLOGY, LTC2758ACLX#TRPBF
11
2
U7, U14
I.C., LT1012ACS8, SO-8
LINEAR TECHNOLOGY, LT1012ACS8#TRPBF
12
2
U8, U12
I.C., LT1360CS8, SO-8
LINEAR TECHNOLOGY, LT1360CS8#TRPBF
13
2
U9, U13
I.C., LTC2054HVCS5, TSOT23-5
LINEAR TECHNOLOGY, LTC2054HVCS5#TRPBF
14
1
U11
I.C., LTC6244HVCDD, 8-PIN-3×3, DD
LINEAR TECHNOLOGY, LTC6244HVCDD#TRPBF
Parts List—1684A-B
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
Required Circuit Components
1
1
1684A GENERAL BOM
2
0
C24, C25, C26, C30, C32, C33 (OPT.)
CAP., 1206
3
2
C28, C35
CAP., COG, 33pF, 50V, 5%, 1206
4
0
R6-R9, R18, R19, R21-R25, R27, R28
RES., 0603
5
0
R30 (OPT.)
6
4
R10, R20, R26, R29
RES., CHIP, 0, 1/16W, 0603
AVX, 12065A330JAT2A
VISHAY, CRCW06030000Z0EA
7
1
U1
I.C., LTC2752ACLX, 48-LX
LINEAR TECHNOLOGY, LTC2752ACLX#TRPBF
8
4
U7, U8, U12, U14
I.C., LT1468CS8, SO-8
LINEAR TECHNOLOGY, LT1468CS8#TRPBF
9
0
U9, U13 (OPT.)
I.C., TSOT23-5
10
0
U11 (OPT.)
I.C., 8-PIN-3×3,DD
dc1684aabfb
5
A
B
C
1
1
1
1
1
S0
S1
S2
MSPAN
1
1
RFLAG#
LDAC#
CLR#
1 0
C37
0.1uF
1K
OPT
C24
100pF
OPT
ASSY
-A
-B
-B
-A
16
R6
18
-B
ASSY
-BIT
-A
C41
0.1uF
C40
0.1uF
2
U1
OPT
1uF
C26
5
2. INSTALL SHUNTS AS SHOWN.
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
DNC
S0
S1
S2
M-SPAN
CLR
LDAC
RFLAG
CS/LD
SCK
SDI
SRO
2
TP8
EXT
LT1468CS8
OPT
OPT
C30
100pF
C28
33pF
4
VREFB
U1 *
VREFA
2
3
-
+
8
2
3
OPT
1uF
C32
OPT
4
OPT
1uF
C33
OPT
10
R19
33pF
OPT
C35
0
OPT
R20
*
VV-
4
9
-5V
U11
U14
6
1K
OPT
OPT
10K
R23
OPT
10K
3
1K
OPT
R25
*
R22
VOSADJA
OPT
R26
0
R27
*
OPT
10
R28
1206
C33
*
R24
*
0
OPT
R29
4
3
4
3
-
+
-
+
V-
V+
-5V
OPT
1K
R30
*
*
1
1
U13
1206
+5V
*
C32
-5V
V-
V+
U9
1206
+5V
*
C25
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
CUSTOMER NOTICE
OPT
4.02K
*
*
1206
C26
R8
C23
+
-
R28
+
-
*
*
3
2
C30
OPT.
C29
R19
*
5
6
2
SCALE = NONE
MARK T.
JW
1206
1206
*
U11B
1
*
DATE:
N/A
SIZE
*
+
1
1
0
0
0
1
1
0
1
0
1
0
7.5
2.5
10
5
MISO
MOSI
SCK
CS#
VREFB
VREFA
MISO
MOSI
SCK
CS#
VREFB
VREFA
TP13
TP12
IC NO.
1
LTC2758/2ACLX
DEMO CIRCUIT 1684A
2/3/2011
DATE
GND
OUTA
GND
OUTB
02-03-11
SHEET 1
2
OF 2
REV.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
6
JP16
FBA
TP10
TP9
DUAL, SPI, IOUT, 18/16-BIT DAC
TECHNOLOGY
-2.5
-2.5
-10
-5
10
5
0
1
0
SPAN
0
0
0
*
*
*
6
U12
*
*
*
U8
1206
V-
V-
V+
V+
1206
C35
R27
-
VR18
V-
V+
V+
C28
+
0
2
3
-
0
*
R30
R21
2
S2 S1 S0
*
R29
R26
R20
*
R10
*
3
MARK T.
JP15
FBB
APPROVED
PRODUCTION
2
1
DESCRIPTION
REVISION HISTORY
REV
TITLE: SCHEMATIC
*
__
ECO
7
1206
U11A
*
OPT.
1206
C24
APPROVALS
C34
OPT
*
R25
OPT
C27
*
R9
2
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
OPT
*
*
R23
R7
R6
VOSADJB
R24
43
44
46
45
42
41
40
39
LTC6244HVCDD
R22
V-
V-
V+
VOSADJA
IOUT1A
RFBA
RFBA
VOSADJB
IOUT1B
RFBB
RFBB
3
Figure 3. DC1684A Dual, SPI, IOUT, 18-/16-Bit DAC
1K
OPT
R21
OPT
R18
LTC2054HVCS5
LT1468CS8
*
V+
U11C
-
+
100pF V+
U9,U13
+5V
C31
6
U7 *
100pF
VC22
V-
V+
V+
LT1360CS8
U8, U12
GND
EXT
TP14
4.02K
LT1012ACS8
U7, U14
2
JP12
R10
2
TP11
VOSADJA
GND
0
VCC
GEADJA
JP11
OPT
1K
OPT
10K
OPT
R9
LTC2752ACLX
R8
21
23
24
25
22
19
26
20
11
13
12
14
EXT
GND
JP1
VOSADJA
GND
EXT
TP15
VOSADJB
CS#
SCK
MOSI
MISO
LTC2758ACLX
OPT
1uF
C25
OPT
10K
R7
R11
10K
ASSY
*
C39
0.1uF
C38
0.1uF
R12
10K
JP13
R13
10K
VOSADJB
R14
10K
NOTE: UNLESS OTHERWISE SPECIFIED
-5V
C36
0.1uF
JP9
JP8
JP7
JP6
JP5
JP4
+5V
3
3
3
3
3
3
3
JP3
R15
10K
VCC
R16
10K
D
2
2
2
2
2
2
2
R17
10K
1
3
1
3
GND
33
GEADJB
1
3
1
3
15
16
VDD
GND
GND
GND
GND
GND
GND
7
10
17
18
27
30
31
32
GEADJB
IOUT2BF
IOUT2BS
IOUT2AF
IOUT2AS
28
29
9
8
34
RINB
RINB
RINA
RINA
5
6
7
4
RCOMA
3
GEADJA
4
RCOMB
35
36
REFB
REFB
37
38
ROFSB
ROFSB
REFA
REFA
2
1
ROFSA
ROFSA
47
48
7
4
5
2
5
7
4
7
4
6
2
5
A
B
C
D
DEMO MANUAL
DC1684A-A /DC1684A-B
Schematic Diagrams
dc1684aabfb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
A
B
C
CS#
SCK
EEVCC
EESDA
EESCL
EEGND
AUX
CS
SCK/SCL
MOSI/SDA
MISO
V+
5V
5
10
9
11
12
14
6
4
7
5
1
2
J1
HD2X7-079-MOLEX
GND
GND
GND
13
8
3
D
MOSI
MISO
T2
T1
TP7
TP16
C4
0.1uF
SCL
SDA
WP
A2
A1
A0
10.0K
R33
10.0K
R34
R32
10.0K
D1
3
6
5
7
3
2
1
4
BAT54C
2
1
U4
24LC025-I /ST
R5
4.99K
V+
10.0K
R31
CS#
SCK
MOSI
MISO
8
VCC
VSS
4
R3
4.99K
IN
TP5
TP4
TP3
2
GND
4
ADJ
OUT
BYP
3
5
C6
10uF
1206
VIN
U3
OPT.
C16
10uF
1206
C12
10uF
1206
4
GND
C13
10uF
1206
5
C17
10uF
1206
TRIM
VOUT
6
OUTS
OUTF
6
7
3
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
CUSTOMER NOTICE
V-
SD#
VIN
C5
10uF
1206
2
1
2
U2
LTC6655CHMS8-5
C19
10uF
1206
C15
10uF
1206
2
2
4
3
1
2
SCALE = NONE
MARK T.
JW
APPROVALS
C18
10uF
1206
C14
10uF
1206
C2
10uF
1206
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
D3
BAT54C
C3
10uF
1206
V+
R2
10.0K
R1
88.7K
12V
D2
BAT54C
0.1uF
Figure 4. DC1684A Dual, SPI, IOUT, 18-/16-Bit DAC
AMPV-
GND
AMPV+
R4
4.99K
C1
10uF
1206
1
U10
LT1761ES5-BYP
C7
3
GND
3
GND
4
GND
5
GND
8
GND
1
2
GND
OUT
BYP
BYP
OUT
5
3
4
5
DATE:
N/A
SIZE
-5V
TECHNOLOGY
0.01uF
C21
+5V
VREFB
0.01uF
C10
JP2
VREFB
REF
REG
JP10
VCC
2
VCC VCC
TP2
IC NO.
1
LTC2758/2ACLX
DEMO CIRCUIT 1684A
2/3/2011
+5V
SHEET 2
2
OF 2
REV.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
C20
10uF
1206
C11
10uF
1206
VREFA
1
DUAL, SPI, IOUT, 18/16-BIT DAC
TITLE: SCHEMATIC
U6
LT1964ES5-5
IN
SD
SHDN
IN
U5
LT1761ES5-5
2
5V
EXT
VREFB
TP6
2
JP14
VREFA
5V
EXT
VREFA
TP1
1
3
1
3
4
2
3
1
1
3
2
1
3
5
A
B
C
D
DEMO MANUAL
DC1684A-A /DC1684A-B
Schematic Diagrams
dc1684aabfb
7
DEMO MANUAL
DC1684A-A /DC1684A-B
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
dc1684aabfb
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Linear Technology Corporation
LT 0314 REV B • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507 ● www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2012
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