14-Bit, 1300 MSPS/625 MSPS, JESD204B,
Dual Analog-to-Digital Converter
Data Sheet
AD9695
FEATURES
APPLICATIONS
Communications
JESD204B (Subclass 1) coded serial digital outputs
Lane rates up to 16 Gbps
1.6 W total power at 1300 MSPS
800 mW per ADC channel
SNR = 65.6 dBFS at 172 MHz (1.59 V p-p input range)
SFDR = 78 dBFS at 172.3 MHz (1.59 V p-p input range)
Noise density
Diversity multiband, multimode digital receivers
3G/4G, TD-SCDMA, WCDMA, GSM, LTE
General-purpose software radios
Ultrawideband satellite receiver
Instrumentation
Oscilloscopes
−153.9 dBFS/Hz (1.59 V p-p input range)
−155.6 dBFS/Hz (2.04 V p-p input range)
0.95 V, 1.8 V, and 2.5 V supply operation
No missing codes
Spectrum analyzers
Network analyzers
Integrated RF test solutions
Radars
Internal ADC voltage reference
Flexible input range
Electronic support measures, electronic counter measures,
and electronic counter-counter measures
High speed data acquisition systems
DOCSIS 3.0 CMTS upstream receive paths
Hybrid fiber coaxial digital reverse path receivers
Wideband digital predistortion
1.36 V p-p to 2.04 V p-p (1.59 V p-p typical)
2 GHz usable analog input full power bandwidth
>95 dB channel isolation/crosstalk
Amplitude detect bits for efficient AGC implementation
2 integrated digital downconverters per ADC channel
48-bit NCO
Programmable decimation rates
Differential clock input
SPI control
Integer clock divide by 2 and divide by 4
Flexible JESD204B lane configurations
On-chip dithering to improve small signal linerarity
FUNCTIONAL BLOCK DIAGRAM
DRVDD1 DRVDD2 SPIVDD
AVDD1
(0.95V)
AVDD2
(1.8V)
AVDD3 AVDD1_SR
DVDD
(0.95V)
(2.5V)
(0.95V)
(0.95V)
(1.8V)
(1.8V)
BUFFER
14
VIN+A
VIN–A
ADC
CORE
DIGITAL DOWN-
CONVERTER
JESD204B
SERDOUT0±
SERDOUT1±
SERDOUT2±
SERDOUT3±
4
LINK
AND
FAST
DETECT
SIGNAL
MONITOR
Tx
DIGITAL DOWN-
CONVERTER
OUTPUTS
14
VIN+B
VIN–B
ADC
CORE
BUFFER
VREF
SYNCINB±
PDWN/STBY
JESD204B
SUBCLASS 1
CONTROL
CLOCK
DISTRIBUTION
SYSREF±
CLK+
FD_A/GPIO_A0
FD_B/GPIO_B0
GPIO MUX
SPI AND
CONTROL
REGISTERS
CLK–
÷2
÷4
AD9695
AGND
SDIO SCLK CSB
DRGND
DGND
Figure 1.
Rev. A
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