DATASHEET
KAD5512P
Low Power 12-Bit, 250/210/170/125MSPS ADC
FN6807
Rev 5.00
May 31, 2016
The KAD5512P is the low-power member of the KAD5512
family of 12-bit analog-to-digital converters. Designed with
Intersil’s proprietary FemtoCharge™ technology on a standard
CMOS process, the family supports sampling rates of up to
250MSPS. The KAD5512P is part of a pin-compatible portfolio
of 10, 12 and 14-bit A/Ds with sample rates ranging from
125MSPS to 500MSPS.
Features
• Half the power of the pin-compatible KAD5512HP family
• 1.5GHz analog input bandwidth
• 60fs clock jitter
• Programmable gain, offset and skew control
• Over-range indicator
A Serial Peripheral Interface (SPI) port allows for extensive
configurability, as well as fine control of various parameters
such as gain and offset.
• Selectable clock divider: ÷1, ÷2 or ÷4
• Clock phase selection
Digital output data is presented in selectable LVDS or CMOS
formats. The KAD5512P is available in 72 Ld and 48 Ld QFN
packages with an exposed paddle. Operating from a 1.8V
supply, performance is specified over the full industrial
temperature range (-40°C to +85°C).
• Nap and sleep modes
• Two’s complement, gray code or binary data format
• SDR/DDR LVDS-compatible or LVCMOS outputs
• Programmable built-in test patterns
• Single-supply 1.8V operation
Key Specifications
• Pb-free (RoHS compliant)
• SNR = 66.1dBFS for f = 105MHz (-1dBFS)
IN
Applications
• Power amplifier linearization
• SFDR = 87dBc for f = 105MHz (-1dBFS)
IN
• Total Power Consumption
- 267/219mW at 250/125MSPS (SDR Mode)
- 234/189mW at 250/125MSPS (DDR Mode)
• Radar and satellite antenna array processing
• Broadband communications
• High-performance data acquisition
• Communications test equipment
• WiMAX and microwave receivers
Related Literature
• KAD5512P-50 Datasheet
• KAD5512HP, Datasheet
0
AIN = -1.0dBFS
SNR = 66.0dBFS
-20 SFDR = 86.5dBc
SINAD = 65.9dBFS
CLKP
CLKOUTP
CLKOUTN
CLOCK
GENERATION
CLKN
-40
D[11:0]P
D[11:0]N
VINP
VINN
12-BIT
250 MSPS
ADC
DIGITAL
ERROR
CORRECTION
-60
SHA
ORP
ORN
-80
VCM
LVDS/CMOS
DRIVERS
+
–
OUTFMT
1.25V
SPI
CONTROL
OUTMODE
-100
-120
0
20
40
60
80
100
120
FREQUENCY (MHz)
FIGURE 2. SINGLE-TONE SPECTRUM AT 105MHz (250MSPS)
FIGURE 1. BLOCK DIAGRAM
FN6807 Rev 5.00
May 31, 2016
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