Owner's manual

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 10kΩ 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 kΩ
Input Capacitance C
IN
5pF
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