MAX12557 Datasheet, PDF (2/28 Pages) Maxim Integrated Products – Dual, 65Msps, 14-Bit, IF/Baseband ADC

Dual, 65Msps, 14-Bit, IF/Baseband ADC
ABSOLUTE MAXIMUM RATINGS
V_DD to GND ................................................................-0.3V to +3.6V
OV_DD to GND............-0.3V to the lower of (V_DD + 0.3V) and +3.6V
INAP, INAN to GND ...-0.3V to the lower of (V_DD + 0.3V) and +3.6V
INBP, INBN to GND ...-0.3V to the lower of (V_DD + 0.3V) and +3.6V
CLKP, CLKN to
GND ........................-0.3V to the lower of (V_DD + 0.3V) and +3.6V
REFIN, REFOUT
to GND ..................-0.3V to the lower of (V_DD + 0.3V) and +3.6V
REFAP, REFAN,
COMA to GND ......-0.3V to the lower of (V_DD + 0.3V) and +3.6V
REFBP, REFBN,
COMB to GND ......-0.3V to the lower of (V_DD + 0.3V) and +3.6V
DIFFCLK/SECLK, G/T, PD, SHREF, DIV2,
DIV4 to GND .........-0.3V to the lower of (V_DD + 0.3V) and +3.6V
D0A–D13A, D0B–D13B, DAV,
DORA, DORB to GND..............................-0.3V to (OV_DD + 0.3V)
Continuous Power Dissipation (T_A = +70°C)
68-Pin Thin QFN 10mm x 10mm x 0.8mm
(derate 70mW/°C above +70°C) ....................................4000mW
Operating Temperature Range................................-40°C to +85°C
Junction Temperature ...........................................................+150°C
Storage Temperature Range .................................-65°C to +150°C
Lead Temperature (soldering 10s).......................................+300°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.
ELECTRICAL CHARACTERISTICS
(V_DD = 3.3V, OV_DD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), C_L ≈ 10pF at digital outputs, V_IN = -0.5dBFS (differen-
tial), DIFFCLK/SECLK = OV_DD, PD = GND, SHREF = GND, DIV2 = GND, DIV4 = GND, G/T = GND, f_CLK = 65MHz, T_A = -40°C to
+85°C, unless otherwise noted. Typical values are at T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC ACCURACY
Resolution
14
Bits
Integral Nonlinearity
INL
f_IN = 3MHz
±2.1
LSB
Differential Nonlinearity
DNL
f_IN = 3MHz, no missing codes over
temperature (Note 2)
-1.0 ±0.6 +1.3 LSB
Offset Error
±0.1 ±0.9 %FSR
Gain Error
±0.5 ±5.0 %FSR
ANALOG INPUT (INAP, INAN, INBP, INBN)
Differential Input Voltage Range
Common-Mode Input Voltage
Analog Input Resistance
V_DIFF Differential or single-ended inputs
R_IN
Each input, Figure 3
±1.024
V
V_DD / 2
V
3.4
kΩ
Analog Input Capacitance
C_PAR
Fixed capacitance to ground,
each input, Figure 3
C_SAMPLE
Switched capacitance,
each input, Figure 3
2
pF
4.5
CONVERSION RATE
Maximum Clock Frequency
Minimum Clock Frequency
f_CLK
65
MHz
5
MHz
Data Latency
Figure 5
8
Clock
Cycles
DYNAMIC CHARACTERISTICS (differential inputs)
Small-Signal Noise Floor
SSNF Input at -35dBFS
74.5
76
dBFS
Signal-to-Noise Ratio
SNR
f_IN = 3MHz at -0.5dBFS
f_IN = 32.5MHz at -0.5dBFS
f_IN = 70MHz at -0.5dBFS
f_IN = 175MHz at -0.5dBFS
72.5
75
74.5
dB
74.1
70.4 72.5
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