Data Sheet
Electrical Characteristics
(T
A
= T
Min
to T
Max
, AV
CC
= +5V, OV
DD
= +5V, ƒ
clk
= 250MHz, 50% duty cycle,
ƒ
IN
= 70MHz, dual channel mode; unless otherwise noted)
symbol
parameter
Resolution
conditions
Min
typ
8
Max
units
bits
CDK1301
8-bit, 250 MSPS A/D Converter with Demuxed Outputs
DC Performance
DLE
ILE
Differential Linearity Error
Integral Linearity Error
No Missing Codes
+25°C, ƒ
IN
= 1KHz
(1)
-40°C to +85°C, ƒ
IN
= 1KHz
(2)
+25°C, ƒ
IN
= 1KHz
(1)
-40°C to +85°C, ƒ
IN
= 1KHz
(2)
@250 MSPS, ƒ
IN
= 1KHz
with respect to V
IN-
2.0
+25°C
+25°C
+25°C
+25°C (-3dB of FS)
+25°C
+25°C
AV
cc
= 5V ±0.25V
25
(2)
(1)
-0.68
-0.95
±0.4
±0.7
±1.2
±1.4
0.68
0.95
±1.90
±2.15
LSB
LSB
LSB
LSB
Guaranteed
±512
2.5
13
50
5
350
-7.5
-5
<1
250
8
16
0.3
2.0
2.5
2.5
2.5
3.5
5.0
5.6
5.18
5.73
18.1
5.3
5.9
9.4
+3.5
+5
3.0
mV
pp
V
µA
kΩ
pF
MHz
%FS
LSB
LSB
MSPS
ns
ps/°C
ns
ps-RMS
Cycle
Cycle
Cycle
Cycle
ns
ns
ps/°C
Bits
Bits
dB
dB
-41.5
-40.3
dB
dB
dB
dB
Analog Input
Input Voltage Range
V
CM
Input Common Mod
(2)
Input Bias Current
Input Resistance
Input Capacitance
Input Bandwidth
Gain Error
PSRR
(1)
Offset Error
(1)
Offset Power Supply Rejection Ratio
Conversion Rate
(2)
t
pd1
t
ap
Output Delay (Clock-to-Data)
Output Delay Tempco
Aperture Delay Time
Aperture Jitter Time
Pipeline Delay (Latency)
Single Channel Mode
Demuxed Interleaved Mode
Demuxed Parallel Mode
Channel B
Channel A
CLK to DCLK
OUT
Delay Time
t
pd2
t
pd3
Single Channel Mode
(2)
Dual Channel Mode
(2)
Output Delay (Clock to DClock)
Timing Characteristics
-40°C to +85°C
7
REV 1A
Dynamic Performance
ENOB
SNR
THD
SINAD
notes:
1. 100% production tested at +25°C.
2. Parameter is guaranteed (but not tested) by design and characterization data.
Effective Number of Bits
Signal-to-Noise Ratio
Total Harmonic Distortion
Signal-to-Noise and Distortion
ƒ
IN
= 70MHz, +25°C
(1)
ƒ
IN
= 70MHz, -40°C to +85°C
ƒ
IN
= 70MHz,+25°C
(1)
ƒ
IN
= 70MHz, -40°C to +85°C
(2)
ƒ
IN
= 70MHz, +25°C
(1)
ƒ
IN
= 70MHz, -40°C to +85°C
(2)
ƒ
IN
= 70MHz, +25°C
(1)
(2)
6.4
6.25
44.3
42.6
7.0
6.8
46.1
45.4
-47
-45.5
40.2
39.3
43.7
42.8
ƒ
IN
= 70MHz, -40°C to +85°C
(2)
©2008 CADEKA Microcircuits LLC
www.cadeka.com
4
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
