Rainbow Electronics MAX1449 User Manual
Page 2
MAX1449
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(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.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
DD
, OV
DD
to GND ...............................................-0.3V to +3.6V
OGND to GND.......................................................-0.3V to +0.3V
IN+, IN- to GND........................................................-0.3V to V
DD
REFIN, REFOUT, REFP,
REFN, and COM to GND..........................-0.3V to (V
DD
+ 0.3V)
OE, PD, CLK to GND..................................-0.3V to (V
DD
+ 0.3V)
D9–D0 to GND.........................................-0.3V to (OV
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
32-Pin TQFP (derate 11.1mW/°C above +70°C)...........889mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC ACCURACY
Resolution
10
Bits
Integral Nonlinearity
INL
f
IN
= 7.5MHz
±0.75
±2.4
LSB
Differential Nonlinearity
DNL
f
IN
= 7.5MHz, no missing codes guaranteed
±0.5
±1.0
LSB
Offset Error
<
±1
±1.7
% FS
Gain Error
0
±2
% FS
ANALOG INPUT
Input Differential Range
V
DIFF
Differential or single-ended inputs
±1.0
V
Common-Mode
Voltage Range
V
COM
V
DD
/2
± 0.5
V
Input Resistance
R
IN
Switched capacitor load
20
k
Ω
Input Capacitance
C
IN
5
pF
CONVERSION RATE
Maximum Clock Frequency
f
CLK
105
MHz
Data Latency
5.5
Cycles
DYNAMIC CHARACTERISTICS (f
CLK
= 105.26MHz, 4096-point FFT)
f
IN
= 7.5MHz
56.3
58.5
f
IN
= 20MHz
55.8
58.5
dB
Signal-To-Noise Ratio
(Note 1)
SNR
f
IN
= 50MHz
58
f
IN
= 7.5MHz
55.3
58.2
f
IN
= 20MHz
55.1
58.1
dB
Signal-To-Noise And Distortion
(Up to 5
th
Harmonic) (Note 1)
SINAD
f
IN
= 50MHz
57.6
f
IN
= 7.5MHz
61
72
f
IN
= 20MHz, T
A
= +25
°C
63
72
dBc
Spurious-Free Dynamic
Range (Note 1)
SFDR
f
IN
= 50MHz
70