Analog Devices Linear Technology DC2085 Demo Manual

DESCRIPTION
Demonstration circuit 2085 supports the
LTC2000A, a high speed, high dynamic range family of
DACs. It was specially designed for applications that re-
quire differential DC coupled outputs. DC2085 supports
the complete family of the LTC2000 including 16, 14 and
11 bit parts. For all the variations see Table 1.
Table 1. DC2085 Variants
DC2085 VARIANTS PART NUMBER
DC2085A-A LTC2000-16
DC2085A-B LTC2000-14
DC2085A-C LTC2000-11
DC2085A-D LTC2000A-16
DC2085A-E LTC2000A-14
DC2085A-F LTC2000A-11
PERFORMANCE SUMMARY
PARAMETER
Supply Voltage – DC2085
Sampling Frequency (Sample Clock Frequency)
Sample Clock Level (Single-Ended)
LVDS Inputs
16-, 14-, 11-Bit, 2.5Gsps to 2.7Gsps DACs
LTC 2000 and
®
RESOLUTION
16-Bit
14-Bit
11-Bit
16-Bit
14-Bit
11-Bit
Specifications are at T
CONDITIONS
This supply must provide up to 800mA
Use a 50Ω Source
Differential Input Voltage Range
Common Mode Voltage Range
DEMO MANUAL DC2085
LTC2000, LTC2000A
The circuitry on the analog outputs is optimized for analog
frequencies from DC-1.08GHz.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2085
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.
MAXIMUM SAMPLE RATE
2.5Gsps
2.5Gsps
2.5Gsps
2.7Gsps
2.7Gsps
2.7Gsps
= 25°C
A
MIN
4.8
300
0
±0.2
0.4
OUTPUT FREQUENCY
DC-1000MHz
DC-1000MHz
DC-1000MHz
DC-1080MHz
DC-1080MHz
DC-1080MHz
TYP MAX UNITS
5.0 5.2
2500 or 2700
15 dBm
±0.6
1.8
dc2085afb
1
V
MHz
V
V