Linear Technology DC1884A Series, Демонстрационное руководство

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dc1884af
DEMO MANUAL DC1884A
DESCRIPTION
LTM9011-14, LTM9010-14,
LTM9009-14, LTM9008-14, LTM9007-14,
LTM9006-14: 14-Bit, 125/105/80/
65/40/25Msps Octal ADC Family
DC1884 supports the LTM ® 9011 high speed, octal ADC
family.
The versions of the 1884A demo board are listed in Table 1.
Depending on the required resolution and sample rate,
the DC1884 is supplied with the appropriate ADC. The
circuitry on the analog inputs is optimized for analog input
PARAMETER CONDITION VALUE
Supply Voltage – DC1884A Depending on Sampling Rate and the A/D Converter
Provided, This Supply Must Provide Up to 700mA Optimized for 3.5V
[3.3V to 6V Minimum/Maximum]
Analog Input Range Depending on SENSE Pin Voltage 1V
P-P
to 2V
P-P
Logic Input Voltages Minimum Logic High 1.3V
Maximum Logic Low 0.6V
Logic Output Voltages (Differential) Nominal Logic Levels (100Ω Load, 3.5mA Mode) 350mV/1.25V Common Mode
Minimum Logic Levels (100Ω Load, 3.5mA Mode) 247mV/1.25V Common Mode
Sampling Frequency (Convert Clock Frequency) See Table 1
Encode Clock Level Single-Ended Encode Mode (ENC
–
Tied to GND) 0V to 3.6V
Encode Clock Level Differential Encode Mode (ENC
–
Not Tied to GND) 0.2V to 3.6V
Resolution See Table 1
Input Frequency Range See Table 1
SFDR See Applicable Data Sheet
SNR See Applicable Data Sheet
PERFORMANCE SUMMARY
frequencies from 1MHz to 70MHz. Refer to the data sheet
for proper input networks for different input frequencies.
Design fi les for this circuit board are available at
http://www.linear.com/demo
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.
Table 1. DC1884 Variants
DC1884 VARIANTS ADC PART NUMBER RESOLUTION MAXIMUM SAMPLE RATE INPUT FREQUENCY
1884A-A LTM9011-14 14-Bit 125Msps 1MHz to 70MHz
1884A-B LTM9010-14 14-Bit 105Msps 1MHz to 70MHz
1884A-C LTM9009-14 14-Bit 80Msps 1MHz to 70MHz
1884A-D LTM9008-14 14-Bit 65Msps 1MHz to 70MHz
1884A-E LTM9007-14 14-Bit 40Msps 1MHz to 70MHz
1884A-F LTM9006-14 14-Bit 25Msps 1MHz to 70MHz
(T
A
= 25°C)