Electrical characteristics (continued) – Rainbow Electronics MAX1449 User Manual
Page 3

MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
f
IN
= 7.5MHz
-72
f
IN
= 20MHz
-72
Third-Harmonic Distortion
(Note 1)
HD3
f
IN
= 50MHz
-70
dBc
Intermodulation Distortion (First 5
Odd-Order IMDs) (Note 2)
IMD
f
1
= 38MHz at -6.5dB FS
f
2
= 42MHz at -6.5dB FS
-76
dBc
Third-Order Intermodulation
Distortion (Note 2)
IM3
f
1
= 38MHz at -6.5dB FS
f
2
= 42MHz at -6.5dB FS
-76
dBc
f
IN
= 7.5MHz, T
A
= +25
°C
-70
-61.5
f
IN
= 20MHz, T
A
= +25
°C
-70
-61.5
dBc
Total Harmonic Distortion
(First 5 Harmonics)
(Note 1)
THD
f
IN
= 50MHz
-70
Small-Signal Bandwidth
Input at -20dB FS, differential inputs
500
MHz
Full-Power Bandwidth
FPBW
Input at -0.5dB FS, differential inputs
400
MHz
Aperture Delay
t
AD
1
ns
Aperture Jitter
t
AJ
2
ps
RMS
Overdrive Recovery Time
For 1.5 x full-scale input
2
ns
Differential Gain
±1
%
Differential Phase
±0.25
degree
Output Noise
IN+ = IN- = COM
0.2
LS B
RM S
INTERNAL REFERENCE
Reference Output Voltage
REFOUT
2.048
±1%
V
Reference Temperature
Coefficient
TC
REF
60
ppm/
°C
Load Regulation
1.25
mV/mA
EXTERNAL REFERENCE
Positive Reference
REFP
V
REFIN
= +2.048V
2.162
V
Negative Reference
REFN
V
REFIN
= +2.048V
1.138
V
Differential Reference Voltage
∆V
REF
V
REFP
-V
REFN
, V
REFIN
= +2.048V
0.98
1.024
1.07
V
REFIN Resistance
R
REFIN
>50
M
Ω
DIGITAL INPUTS (CLK, PD,
OE)
CLK
0.8 x
V
DD
Input High Threshold
V
IH
PD,
OE
0.8 x
V
DD
V
CLK
0.2 x
V
DD
Input Low Threshold
V
IL
PD,
OE
0.2 x
V
DD
V
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3.3V, OV
DD
= +2.0V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; V
REFIN
= +2.048V, REFOUT
connected to REFIN through a 10k
Ω resistor, V
IN
= 2Vp-p (differential with respect to COM), C
L
≈ 10pF at digital outputs, f
CLK
=
105MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A =
+25°C.)