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DESCRIPTION
DEMO MANUAL DC2403A
LT6200
Rail-to-Rail SAR ADC
Driver Amplifier
Demonstration circuit 2403A features the LT®6200 ampli-
fier. The DC2403A includes two of these amplifiers and is
designed to drive the inputs of the DC2290A demo board.
®
The DC2290A features the LTC
2387 18-bit, 15Msps
high speed SAR ADC. The linearity and low noise of the
–5V +10V
LT6200 make it an ideal candidate to drive the LTC2387
at frequencies up to 1MHz. See Table 1.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2403A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
FROM
DIFFERENTIAL
SOURCE
Table 1. DC2290A (LTC2387 Family) Driver Board
INPUT FREQUENCY DRIVE BOARD AMPLIFIER
Up to 8kHz DC2402 LT6237
Up to 1MHz DC2403 LT6200
>1MHz Contact Factory Contact Factory
TO DC2290A
Figure 1. DC2403A Connection Diagram
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DEMO MANUAL DC2403A
QUICK START PROCEDURE
Connect the DC2403A to a DC2290A using the two output
SMA connectors J2, J4. Connect the +10V and –5V DC
supplies to the turrets on the DC2403A.
HARDWARE SETUP
SIGNAL CONNECTIONS
J1 +IN. This is the positive signal input.
J3 –IN. This is the negative signal input.
J4 –OUT. This is the negative signal output.
J2 +OUT. This is the positive signal output.
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
1 6 C4, C6, C14, C16, C21, C23 CAP., TANT, 10µF, 16V, 20%, 0805 VISHAY, 298D106X0016R2T
2 2 C3, C5 CAP., X5R, 1µF, 16V, 10%, 0603 AVX, 0603YD105KAT2A
3 2 C1, C2 CAP., X5R, 22µF, 16V 10%, 1210 AVX, 1210YD226K AT2A
4 4 C7, C9, C20, C22 CAP., X5R, 0.1µF, 16V 10% 0402 AVX, 0402YD104K AT2A
5 1 C13 CAP., X7R, 0.01µF, 6.3V 10%, 0603 MURATA, GRM188R70J103KA01D
6 2 C8, C11 CAP., NPO, 1000pF, 16V, 5%, 1206 AVX, 1206YA 102JAT2A
7 2 E4, E5 TEST POINT, TURRET, .064" MILL MAX, 2308-2-00-80-00-00-07-0
8 3 E1, E2, E3 TEST POINT, TURRET, .094" MILL-MAX, 2501-2-00-80-00-00-07-0
9 2 J1, J3 CONN, SMA, 50Ω, EDGE-LAUNCH, FEMALE E.F. JOHNSON, 142-0701-851
10 2 J2, J4 CONN, SMA, 50Ω, EDGE-LAUNCH, MALE E.F. JOHNSON, 142-0801-811
11 2 R5, R9 RES., 24.9Ω, 1/10W, 1% 0603 PANASONIC, ERJ-3EKF24R9V
12 2 R7, R11 RES., 15.0Ω, 1/10W, 1% 0603 PANASONIC, ERJ-3EKF15R0V
13 1 R4 RES., 5.11kΩ, 1/10W, 1% 0603 PANASONIC, ERJ-3EKF5111V
14 2 R1, R3 RES., 1.00kΩ, 1/10W, 1% 0603 PANASONIC, ERJ-3EKF1001V
15 1 R2 RES., 1.05kΩ, 1/10W, 1% 0603 PANASONIC, ERJ-3EKF1051V
16 1 U2 IC, MICROPOWER REGULATOR, SO8 LINEAR TECH., LT1763CS8#PBF
17 2 U3, U4 IC, 400MHz AMPLIFIER, MS8 LINEAR TECH., LT6200CS8#PBF
18 1 U1 IC, MICROPOWER NEG. REGULATOR, SOT-23 LINEAR
TECH., LT1964ES5-SD#PBF
2
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SCHEMATIC DIAGRAM
–2.5V
+7.5V
+7.5V
–2.5V
–5VIN
+10VIN
R7
15ΩR525Ω
OUT
ADJ
GND
BYP
SHDN
IN
LT1763
C13
0.01µF
GND
IN
SHDN
ADJ
OUT
LT1964-SD
R2
1.05k
R4
5.11k
R3
1k
R1
1k
C3
1µFC122µF
C4
10µF
+IN
+OUT
GND
LT6200
C5
1µFC222µF
C6
10µFC90.1µF
C16
10µF
C14
10µFC70.1µFC81nF
+7.5V
–2.5V
R11
15ΩR925Ω
+IN
–OUT
LT6200
C22
0.1µF
C23
10µF
C21
10µF
C20
0.1µF
C11
1nF
DEMO MANUAL DC2403A
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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DEMO MANUAL DC2403A
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LT C ) 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 LT C 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 LT C 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. LT C assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LT C 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 LT C application engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
Linear Technology Corporation
4
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
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LT 1015 REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2015
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