1
dc2623af
DEMO MANUAL DC2623A
DESCRIPTION
LTC6404-1
Rail-to-Rail SAR ADC
Driver Amplifier
Demonstration circuit 2623A features the
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.
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.
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
Figure 1. DC2623A Connection Diagram
Table 1. DC2290 (LTC2387 Family) Driver Boards
INPUT FREQUENCY
DRIVER BOARD
AMPLIFIER
Up to 8kHz
DC2402
LT6237
Up to 1MHz
DC2403
LT6200
>1MHz
Lowest Noise: DC2622
Lowest Distortion: DC2623
ADA4899
LTC6404-1 + AD8002
–5V
+10V
TO DC2290
FROM
DIFFERENTIAL
SOURCE
