Rainbow Electronics MAX1425 - Manual (Page 2)

MAX1425
10-Bit, 20Msps ADC
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V AVDD = V CMLP = +5V, V DVDD = +3.3V, V CMLN = V AGND = V DGND = 0, internal reference, digital output load = 35pF, f CLK = 20MHz
(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.
AV DD to AGND ........................................................ -0.3V to +6V
DV DD to DGND ....................................................... -0.3V to +6V
AV DD to DGND ........................................................ -0.3V to +6V
DGND to AGND ................................................................. ±0.3V
REFP, REFIN, REFN, CMLN, CMLP,
CML, INP, INN ....................(V AGND - 0.3V) to (V AVDD + 0.3V)
CLK, OE/PD, D0–D9 ...............(V DGND - 0.3V) to (V DVDD + 0.3V)
Continuous Power Dissipation (T A = +70°C)
28-Pin SSOP (derated 9.5mW/°C above +70°C) .........762mW
Operating Temperature Ranges
MAX1425CAI ..................................................... 0°C to +70°C
MAX1425EAI................................................... -40°C to +85°C
Junction Temperature ..................................................... +150°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
SINAD dB
PARAMETER SYMBOL MIN TYP MAX UNITS
Gain Error GE
-10 ±5 10
Midscale Offset MSO -3 ±1.0 3
No Missing Codes
Integral Nonlinearity INL -1.5 ±0.3 1.5 LSB
-5 ±2 5
-5 ±3 5
Power-Supply Rejection Ratio PSRR -5 ±2 5 mV/V
Resolution RES 10 Bits
Differential Nonlinearity DNL -1 1 LSB
Signal-to-Noise Ratio SNR
60 61
dB
Spurious-Free Dynamic Range SFDR
70 72
dB
Total Harmonic Distortion
(first five harmonics)
THD
-70 -67
dB
Signal-to-Noise and Distortion
59 61
CONDITIONS
f = 2MHz
Internal reference (Note 1)
(Note 1)
Guaranteed monotonic
External reference (REFIN) (Note 2)
External reference (REFP, CML, REFN)
(Note 3)
(Note 4)
f = 2MHz
f = 2MHz
f = 2MHz
%FSR
%FSR
f = 10MHz 56 59
f = 10MHz 64 69
f = 10MHz -69 -64
f = 10MHz 55 59
ENOB Bits Effective Number of Bits
9.3 9.7 f = 2MHz
f = 10MHz 8.8 9.5
IMD dBc Intermodulation Distortion -70
f1 = 10.17MHz, f2 = 10.19MHz
(-7dB FS, each tone) (Note 5)
ACCURACY
DYNAMIC PERFORMANCE (V INP - V INN = +2V to -2V)