DEMO MANUAL DC2623A
LTC6404-1
Rail-to-Rail SAR ADC
Driver Amplifier
DESCRIPTION
Demonstration circuit 2623A features the
LTC
®
6404-1
amplifier. The DC2623A includes two of these amplifiers
and is designed to drive the inputs of the DC2290 demo
board. The DC2290 features the LTC
®
2387 18-bit, 15Msps
high speed SAR ADC. The linearity and low noise of the
LTC6404-1 make it an ideal candidate to drive the LTC2387
at frequencies above 1MHz. See Table 1.
–5V
Note: The DC2623A is configured to provide a voltage gain
of 4 from either a single-ended source or a differential one.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2623A
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
Devices, Inc. All other trademarks are the property of their respective owners.
+10V
FROM
DIFFERENTIAL
SOURCE
TO DC2290
Figure 1. DC2623A Connection Diagram
Table 1. DC2290 (LTC2387 Family) Driver Boards
INPUT FREQUENCY
Up to 8kHz
Up to 1MHz
>1MHz
DRIVER BOARD
DC2402
DC2403
Lowest Noise: DC2622
Lowest Distortion: DC2623
AMPLIFIER
LT6237
LT6200
ADA4899
LTC6404-1 + AD8002
dc2623af
1
DEMO MANUAL DC2623A
QUICK START PROCEDURE
Connect the DC2623A to a DC2290 using the two output
SMA connectors J2, J4. Connect the +10V and –5V DC
supplies to the turrets on the DC2623A.
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.
dc2623af
2
DEMO MANUAL DC2623A
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 applica-
tion engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
dc2623af
4
LT 0317 • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2017