Linear Technology LTC2195 Manual

DESCRIPTION
Demonstration circuit 1763A supports a family of 16-Bit
25Msps to 125Msps ADCs. Each assembly features one
of the following devices: LTC
LTC2192, LTC2191, LTC2190 high speed, dual ADCs.
The versions of the 1763A demo board are listed in Table 1.
Depending on the required resolution and sample rate,
the DC1763A is supplied with the appropriate ADC. The
Table 1. DC1763A Variants
DC1763A VARIANTS
1763A-A
1763A-B
1763A-C
1763A-D
1763A-E
1763A-F
PERFORMANCE SUMMARY
PARAMETER
Supply Voltage – DC1763A
Analog Input Range
Logic Input Voltages
Logic Output Voltages (Differential)
Sampling Frequency (Convert Clock Frequency)
Encode Clock Level
Resolution
Input Frequency Range
SFDR
SNR
Arrow.com.
Downloaded from
16-Bit, 25Msps to 125Msps Dual ADCs
® 2195, LTC2194, LTC2193,
ADC PART NUMBER RESOLUTION
LTC2195
LTC2194
LTC2193
LTC2192
LTC2191
LTC2190
(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 DC1763A
LTC2195, LTC2194, LTC2193,
LTC2192, LTC2191, LTC2190
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.
MAXIMUM SAMPLE RATE
16-Bit 125Msps
16-Bit 105Msps
16-Bit 80Msps
16-Bit 65Msps
16-Bit 40Msps
16-Bit 25Msps
–
Tied to GND)
–
Not Tied to GND)
INPUT FREQUENCY
5MHz to 140MHz
5MHz to 140MHz
5MHz to 140MHz
5MHz to 140MHz
5MHz to 140MHz
5MHz to 140MHz
MIN TYP MAX UNITS
3 3.6 6
1 2
1.3
0.6
350
1.25
247
1.25
0 3.6
0.2 3.6
dc1763af
1
V
V
P-P
V
V
mV
V
mV
V
V
V