KAD5512P
General Description
Preliminary
Low Power 12-Bit, 250/210/170/125MSPS ADC
The KAD5512P is the low-power member of the
KAD5512 family of 12-bit analog-to-digital
converters. Designed with Kenet’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.
A serial peripheral interface (SPI) port allows for
extensive configurability, as well as fine control of
various parameters such as gain and offset.
Digital output data is presented in selectable LVDS
or CMOS formats. The KAD5512P is available in 72-
and 48-contact QFN packages with an exposed
paddle. Operating from a 1.8V supply, performance
is specified over the full industrial temperature range
(-40 to +85°C).
Features
•
•
•
•
•
•
•
•
•
•
•
•
Pin-Compatible with the KAD5512HP family,
operating at half the power
Programmable gain and offset control
1.3GHz analog input bandwidth
52fs Clock Jitter
Over-range indicator
Selectable Clock Divider: ÷1, ÷2 or ÷4
Clock Phase Selection
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
1.8V Analog and Digital Supplies
Key Specifications
•
•
•
SNR = 65.1dBFS for f
IN
= 124MHz (-1dBFS)
SFDR = 81dBc for f
IN
= 124MHz (-1dBFS)
Power consumption
•
250/199mW @ 250/125MSPS (SDR Mode)
•
203/159mW @ 250/125MSPS (DDR Mode)
Pin-Compatible Family
Model
KAD5514P-25
KAD5514P-21
KAD5514P-17
KAD5514P-12
KAD5512P-50
KAD5512P-25, KAD5512HP-25
KAD5512P-21, KAD5512HP-21
KAD5512P-17, KAD5512HP-17
KAD5512P-12, KAD5512HP-12
KAD5510P-50
Resolution
14
14
14
14
12
12
12
12
12
10
Speed (MSPS)
250
210
170
125
500
250
210
170
125
500
Applications
•
•
•
•
•
•
Power Amplifier Linearization
Radar and Satellite Antenna Array Processing
Broadband Communications
High-Performance Data Acquisition
Communications Test Equipment
WiMAX and Microwave Receivers
300 Unicorn Park Dr., Woburn, MA 01801
Sales: 1-781-497-0060
FemtoCharge
is a registered trademark of Kenet, Inc.
Rev 0.5
Sales@kenetinc.com
Copyright © 2008, Kenet, Inc.
Page 1
KAD5512P
Electrical Specifications
All specifications apply under the following conditions unless otherwise noted: AVDD = 1.8V, OVDD = 1.8V, T
A
=
-40
°
C to +85
°
C, A
IN
= -1dBFS, f
SAMPLE
= Maximum Conversion Rate (per speed grade).
DC Specifications
KAD5512P-25
Parameter
Analog Input
Full-Scale Analog Input Range
Input Resistance
Input Capacitance
Full Scale Range Temp. Drift
Input Offset Voltage
Gain Error
Common-Mode Output Voltage
Power Requirements
1.8V Analog Supply Voltage
1.8V Digital Supply Voltage
1.8V Analog Supply Current
1.8V Digital Supply Current (SDR)
1.8V Digital Supply Current (DDR)
Power Supply Rejection Ratio
Power Dissipation
Normal Mode (SDR)
Normal Mode (DDR)
Nap Mode
Sleep Mode
P
D
P
D
P
D
P
D
250
203
40
10
TBD
TBD
TBD
TBD
233
188
40
10
TBD
TBD
TBD
TBD
218
175
40
10
TBD
TBD
TBD
TBD
199
159
40
10
TBD
TBD
TBD
TBD
mW
mW
mW
mW
AVDD
OVDD
I
AVDD
I
OVDD
I
OVDD
PSRR
1.7
1.7
1.8
1.8
78
62
35.2
-53
1.9
1.9
TBD
TBD
TBD
1.7
1.7
1.8
1.8
71
58
33.4
-53
1.9
1.9
TBD
TBD
TBD
1.7
1.7
1.8
1.8
65
56
31.9
-53
1.9
1.9
TBD
TBD
TBD
1.7
1.7
1.8
1.8
58
53
30.1
-53
1.9
1.9
TBD
TBD
TBD
V
V
mA
mA
mA
dBFS
V
FS
R
IN
C
IN
A
VTC
V
OS
E
G
V
CM
Differential
Differential
Differential
Full Temp
1.38
1.45
1000
4
90
±1.5
±0.6
0.535
1.59
1.38
1.45
1000
4
90
±1.5
±0.6
0.535
1.59
1.38
1.45
1000
4
90
±1.5
±0.6
0.535
1.59
1.38
1.45
1000
4
90
±1.5
±0.6
0.535
1.59
V
PP
Ω
pF
ppm/°C
mV
%
V
Symbol
Conditions
Min
Typ
Max
KAD5512P-21
Min
Typ
Max
KAD5512P-17
Min
Typ
Max
KAD5512P-12
Min
Typ
Max
Units
Rev 0.5 Preliminary
Page 3
KAD5512P
Digital Specifications
Parameter
Inputs
Input Current High (RESETN)
Input Current Low (RESETN)
Input Current High (OUTMODE,
NAP/SLP, CLKDIV, OUTFMT )
Input Current Low (OUTMODE,
NAP/SLP, CLKDIV, OUTFMT )
Input Capacitance
LVDS Outputs
Differential Output Voltage
Output Offset Voltage
Output Rise Time
Output Fall Time
CMOS Outputs
Voltage Output High
Voltage Output Low
Output Rise Time
Output Fall Time
V
OH
V
OL
t
R
t
F
OVDD-0.1
0.1
TBD
TBD
V
V
ns
ns
V
T
V
OS
t
R
t
F
210
TBD
500
500
mV
mV
ps
ps
I
IH
I
IL
I
IH
I
IL
C
DI
VIN = 1.8V
VIN = 0V
0
25
TBD
TBD
1
50
25
25
3
10
75
TBD
TBD
µA
µA
µA
µA
pF
Symbol
Conditions
Min
Typ
Max
Units
Rev 0.5 Preliminary
Page 5
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