Linear Technology DC1762A-A Demo Manual

LTC2162, LTC2161, LTC2160, LTC2159, LTC2269
Description
Demonstration circuit 1762A supports a family of 16-Bit
20Msps to 125Msps ADCs. Each assembly features one
of the following devices: LTC
LTC2162, LTC2161, LTC2160, LTC2159, or LTC2269 high
speed, high dynamic range ADCs.
Demonstration circuit 1762A supports the LTC2165 family
DDR LVDS output mode.
The versions of the 1762A demo board supporting the
LTC2165 series of A/D converters are listed in Table 1.
Table 1. DC1762A Variants
DC1762A VARIANTS
1762A-A
1762A-B
1762A-C
1762A-D
1762A-E
1762A-F
1762A-G
1762A-H
performance summary
PARAMETER
Supply Voltage – DC1762A
Analog Input Range
Logic Input Voltages
Logic Output Voltages (Differential)
Sampling Frequency (Convert Clock Frequency)
Convert Clock Level
Resolution
Input Frequency Range
SFDR
SNR
16-Bit, 20Msps to125Msps ADCs
2165, LTC2164, LTC2163,
®
ADC PART NUMBER
LTC2165
LTC2164
LTC2163
LTC2162
LTC2161
LTC2160
LTC2159
LTC2269
(T = 25°C)
A
CONDITIONS
Depending on Sampling Rate and the A/D Converter
Provided, this Supply Must Provide up to 500mA.
Depending on SENSE Pin Voltage
Minimum Logic High
Maximum Logic Low
Nominal Logic Levels (100Ω Load, 3.5mA Mode)
Common Mode
Minimum Logic Levels (100Ω Load, 3.5mA Mode)
Common Mode
See Table 1
Single-Ended Encode Mode (ENC
Differential Encode Mode (ENC
See Table 1
See Table 1
See Applicable Data Sheet
See Applicable Data Sheet
DEMO MANUAL DC1762A
LTC2165, LTC2164, LTC2163
Depending on the required resolution and sample rate,
the DC1762A is supplied with the appropriate ADC. The
circuitry on the analog inputs is optimized for analog input
frequencies from 5MHz to 140MHz. Refer to the data sheet
for proper input networks for different input frequencies.
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, µModule, Linear Technology and the Linear logo are registered trademarks
and PScope is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
RESOLUTION MAXIMUM SAMPLE RATE
16-Bit
16-Bit
16-Bit
16-Bit
16-Bit
16-Bit
16-Bit
16-Bit
–
Tied to GND)
–
Not Tied to GND)
INPUT FREQUENCY
125Msps 5MHz to 140MHz
105Msps 5MHz to 140MHz
80Msps 5MHz to 140MHz
65Msps 5MHz to 140MHz
40Msps 5MHz to 140MHz
25Msps 5MHz to 140MHz
20Msps 5MHz to 140MHz
20Msps 5MHz to 140MHz
MIN TYP
4.5
1
1.3
0.6
350
1.25
247
1.25
0
0.2
MAX UNITS
6 V
2 V
P-P
V
V
mV
V
mV
V
3.6 V
3.6 V
dc1762afb
1