Converter electrical characteristics – Rainbow Electronics ADC08D1000 User Manual
Page 8
Converter Electrical Characteristics
(Continued)
[Note: This product is currently in development. As such, the parameters specified in this section are DESIGN TAR-
GETS. The specifications in this section cannot be guaranteed until device characterization has taken place.]
The following specifications apply after calibration for V
A
= V
DR
= +1.9V
DC
, OutV = 1.9V, V
IN
FSR (a.c. coupled) = differential
860mV
P-P
, C
L
= 10 pF, Differential, a.c. coupled Sinewave Input Clock, f
CLK
= 1 GHz at 0.5V
P-P
with 50% duty cycle, Non-
Extended Control Mode, R
EXT
= 3300
Ω
±
0.1%, Analog Signal Source Impedance = 100
Ω. Boldface limits apply for T
A
=
T
MIN
to T
MAX
. All other limits T
A
= 25˚C, unless otherwise noted. (Notes 6, 7)
Symbol
Parameter
Conditions
Typical
Limits
Units
(Limits)
STATIC CONVERTER CHARACTERISTICS
SINAD
Signal-to-Noise Plus Distortion
Ratio
f
IN
= 100 MHz, V
IN
= FSR − 0.5 dB
47
dB
f
IN
= 248 MHz, V
IN
= FSR − 0.5 dB
47
TBD
dB (min)
f
IN
= 498 MHz, V
IN
= FSR − 0.5 dB
47
TBD
dB (min)
SNR
Signal-to-Noise Ratio
f
IN
= 100 MHz, V
IN
= FSR − 0.5 dB
48
dB
f
IN
= 248 MHz, V
IN
= FSR − 0.5 dB
48
TBD
dB (min)
f
IN
= 498 MHz, V
IN
= FSR − 0.5 dB
48
TBD
dB (min)
THD
Total Harmonic Distortion
f
IN
= 100 MHz, V
IN
= FSR − 0.5 dB
-57
dB
f
IN
= 248 MHz, V
IN
= FSR − 0.5 dB
-57
dB (max)
f
IN
= 498 MHz, V
IN
= FSR − 0.5 dB
-57
dB (max)
2nd Harm
Second Harmonic Distortion
f
IN
= 100 MHz, V
IN
= FSR − 0.5 dB
−64
dB
f
IN
= 248 MHz, V
IN
= FSR − 0.5 dB
−64
dB
f
IN
= 498 MHz, V
IN
= FSR − 0.5 dB
−64
dB
3rd Harm
Third Harmonic Distortion
f
IN
= 100 MHz, V
IN
= FSR − 0.5 dB
−64
dB
f
IN
= 248 MHz, V
IN
= FSR − 0.5 dB
−64
dB
f
IN
= 498 MHz, V
IN
= FSR − 0.5 dB
−64
dB
SFDR
Spurious-Free dynamic Range
f
IN
= 100 MHz, V
IN
= FSR − 0.5 dB
58.5
dB
f
IN
= 248 MHz, V
IN
= FSR − 0.5 dB
58.5
TBD
dB (min)
f
IN
= 498 MHz, V
IN
= FSR − 0.5 dB
58.5
TBD
dB (min)
IMD
Intermodulation Distortion
f
IN1
= 121 MHz, V
IN
= FSR − 7 dB
f
IN2
= 126 MHz, V
IN
= FSR − 7 dB
-51
dB
Out of Range Output Code
(In addition to OR Output high)
(V
IN
+) − (V
IN
−)
>
+ Full Scale
255
(V
IN
+) − (V
IN
−)
<
− Full Scale
0
ANALOG INPUT AND REFERENCE CHARACTERISTICS
V
IN
Full Scale Analog Differential Input
Range
FSR pin 14 Low
650
600
mV
P-P
(min)
700
mV
P-P
(max)
FSR pin 14 High
860
810
mV
P-P
(min)
910
mV
P-P
(max)
V
CMI
Analog Input Common Mode
Voltage
V
CMO
V
CMO
− 50
V
CMO
+ 50
mV (min)
mV (max)
C
IN
Analog Input Capacitance, normal
operation (Note 10)
Differential
0.02
pF
Each input pin to ground
1.6
pF
Analog Input Capacitance, DES
Mode (Note 10)
Differential
0.8
pF
Each input pin to ground
2.2
pF
R
IN
Differential Input Resistance
100
94
Ω (min)
106
Ω (max)
ANALOG OUTPUT CHARACTERISTICS
V
CMO
Common Mode Output Voltage
1.25
0.95
1.45
V (min)
V (max)
TC V
CMO
Common Mode Output Voltage
Temperature Coefficient
T
A
= −40˚C to +85˚C
118
ppm/˚C
C
LOAD
V
CMO
Maximum VCMO load Capacitance
80
pF
ADC08D1000
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