Rainbow Electronics MAX1448 User Manual
Page 2
MAX1448
10-Bit, 80Msps, Single +3.0V, Low-Power
ADC with Internal Reference
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +3.0V, 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
≈ 15pF at digital outputs (Note 5),
f
CLK
= 83.3MHz (50% duty cycle), 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
= 7.47MHz
±0.7
±2.2
LSB
Differential Nonlinearity
DNL
f
IN
= 7.47M H z, no m i ssi ng cod es g uar anteed
±0.4
±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
25
k
Ω
Input Capacitance
C
IN
5
pF
CONVERSION RATE
Maximum Clock Frequency
f
CLK
80
MHz
Data Latency
5.5
Cycles
DYNAMIC CHARACTERISTICS (f
CLK
= 83.3MHz, 4096-point FFT)
f
IN
= 7.47MHz
56.5
59.1
f
IN
= 20MHz
56
59
Signal-to-Noise Ratio
SNR
f
IN
= 39.9MHz (Note 1)
58.5
dB
f
IN
= 7.47MHz
55.8
59
f
IN
= 20MHz
55.3
58.8
Signal-to-Noise Plus Distortion
(up to 5th harmonic)
SINAD
f
IN
= 39.9MHz (Note 1)
58
dB