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| MAX1444 Datasheet, PDF (2/20 Pages) Maxim Integrated Products – 10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference | |||
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10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
ABSOLUTE MAXIMUM RATINGS
VDD, OVDD to GND ...............................................-0.3V to +3.6V
OGND to GND.......................................................-0.3V to +0.3V
IN+, IN- to GND........................................................-0.3V to VDD
REFIN, REFOUT, REFP,
REFN, and COM to GND.........................-0.3V to (VDD + 0.3V)
OE, PD, CLK to GND..................................-0.3V to (VDD + 0.3V)
D9âD0 to GND.........................................-0.3V to (OVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
32-Pin TQFP (derate 18.7mW/°C above +70°C)......1495.3mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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
(VDD = 3V; OVDD = 2.7V; 0.1µF and 1µF capacitors from REFP, REFN, and COM to GND; VREFIN = 2.048V; REFOUT connected to
REFIN through a 10k⦠resistor; VIN = 2VP-P (differential with respect to COM); CL = 10pF at digital outputs; fCLK = 40MHz; TA = TMIN
to TMAX, unless otherwise noted. ⥠+25°C guaranteed by production test, < +25°C guaranteed by design and characterization; typi-
cal values are at TA = +25°C.)
PARAMETER
DC ACCURACY
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Resolution
Integral Nonlinearity
INL fIN = 7.51MHz, TA ⥠+25°C
10
Bits
±0.6
±1.9
LSB
Differential Nonlinearity
DNL
fIN = 7.51MHz, no missing codes
guaranteed
±0.4
±1.0
LSB
Offset Error
Gain Error
ANALOG INPUT
Input Differential Range
Common-Mode
Voltage Range
TA ⥠+25°C
VDIFF
VCOM
Differential or single-ended inputs
<±0.1
±1.7
0
±2
±1.0
VDD/2
±0.5
% FS
% FS
V
V
Input Resistance
Input Capacitance
CONVERSION RATE
RIN Switched capacitor load
CIN
50
kâ¦
5
pF
Maximum Clock Frequency
fCLK
Data Latency
DYNAMIC CHARACTERISTICS (fCLK = 40MHz, 4096-point FFT)
fIN = 7.51MHz
Signal-to-Noise Ratio
SNR fIN = 19.91MHz
fIN = 39.9MHz (Note 1)
Signal-to-Noise and Distortion
(Up to 5th harmonic)
SINAD
fIN = 7.51MHz
fIN = 19.91MHz
fIN = 39.9MHz (Note 1)
fIN = 7.51MHz
Spurious-Free Dynamic Range
SFDR fIN = 19.91MHz
fIN = 39.9 MHz (Note 1)
40
5.5
57.5
59.5
56.3
59.5
58.5
57
59.4
56.1
59
58.3
67
75
66
74
72.5
MHz
Cycles
dB
dB
dBc
2 _______________________________________________________________________________________
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