Information

Texas Instruments Signal Chain Guide 2013 | 45
Data Converters
Analog-to-Digital Converters – Pipeline ADCs
Dual 12-Bit 800 MSPS Analog-to-Digital Converter
ADS5402
The ADS5402 is a high linearity dual channel 12-bit, 800 Msps analog-to-digital
converter (ADC) easing front end filter design for wide bandwidth receivers. The analog
input buffer isolates the internal switching of the on-chip track-and-hold from disturb-
ing the signal source as well as providing a high-impedance input. Optionally the output
data can be decimated by two. Designed for high SFDR, the ADC has low-noise perfor-
mance and very good spurious-free dynamic range over a large input-frequency range.
ADS5402 functional block diagram
Key Features
• Dualchannel
• 12-bitresolution
• Maximumclockrate:800Msps
• Lowswingfullscaleinput:1.0Vpp
• Analoginputbufferwithhigh
impedance input
•
Inputbandwidth(3dB):>1.2GHz
• Dataoutputinterface:DDRLVDS
• Optional2xdecimationwithlowpass
or high pass filter
• 196-pinBGApackage(12×12mm)
Applications
• Cableinfrastructure
• Dataacquisition
• Microwavereceivers
• Non-destructivetesting
• Poweramplifierlinearization
• Radarandsatellitesystems
• Signalintelligenceandjamming
• Testandmeasurementinstrumentation
• Ultra-widebandsoftwaredefinedradio
Get more information: www.ti.com/product/ADS5402
12-bit
800 Msps
12-bit
800 Msps
INA
INB
CLKIN
SYNC
DA[11:0]
DB[11:0]
Digital
Block
Digital
Block
Clk
Buffer
DACLK
DBCLK