MAX1248 Maxim, MAX1248 Datasheet - Page 2

• Manufacturer Part Number: MAX1248
• Description: 2x4-Channel / Simultaneous-Sampling 14-Bit DAS
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
V
AGND to DGND.................................................... -0.3V to +0.3V
CH0–CH3, COM to AGND, DGND ............ -0.3V to (V
VREF to AGND........................................... -0.3V to (V
Digital Inputs to DGND............................................ -0.3V to +6V
Digital Outputs to DGND ........................... -0.3V to (V
Digital Output Sink Current .................................................25mA
Continuous Power Dissipation (T
ELECTRICAL CHARACTERISTICS
(V
MAX1248—4.7µF capacitor at VREF pin; MAX1249—external reference, VREF = 2.500V applied to VREF pin; T
unless otherwise noted.)
+2.7V to +5.25V, Low-Power, 4-Channel,
Serial 10-Bit ADCs in QSOP-16
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.
2
Resolution
Relative Accuracy (Note 2)
Differential Nonlinearity
Offset Error
Gain Error (Note 3)
Gain Temperature Coefficient
Channel-to-Channel Offset
Matching
Signal-to-Noise + Distortion Ratio
Total Harmonic Distortion
Spurious-Free Dynamic Range
Channel-to-Channel Crosstalk
Small-Signal Bandwidth
Full-Power Bandwidth
Conversion Time (Note 5)
Track/Hold Acquisition Time
Aperture Delay
Aperture Jitter
Internal Clock Frequency
External Clock Frequency
DD
DC ACCURACY (Note 1)
DYNAMIC SPECIFICATIONS (10kHz sine-wave input, 0V to 2.500Vp-p, 133ksps, 2.0MHz external clock, bipolar input mode)
CONVERSION RATE
DD
Plastic DIP (derate 10.53mW/°C above +70°C) ......... 842mW
_______________________________________________________________________________________
to AGND, DGND .............................................. -0.3V to +6V
= +2.7V to +5.25V; COM = 0V; f
PARAMETER
A
= +70°C)
SYMBOL
SINAD
t
SFDR
CONV
t
DNL
THD
INL
ACQ
SCLK
= 2.0MHz; external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps);
MAX124_A
MAX124_B
No missing codes over temperature
MAX124_A
MAX124_B
MAX124_A
MAX124_B
Up to the 5th harmonic
65kHz, 2.500Vp-p (Note 4)
-3dB rolloff
Internal clock, SHDN = FLOAT
Internal clock, SHDN = V
External clock = 2MHz, 12 clocks/conversion
SHDN = FLOAT
SHDN = V
Data transfer only
DD
DD
DD
+ 0.3V)
+ 0.3V)
+ 0.3V)
DD
CONDITIONS
Operating Temperature Ranges
Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
QSOP (derate 8.30mW/°C above +70°C) ................... 667mW
CERDIP (derate 10.00mW/°C above +70°C) .............. 800mW
MAX1248_C_E/MAX1249_C_E .......................... 0°C to +70°C
MAX1248_E_E/MAX1249_E_E........................ -40°C to +85°C
MAX1248_MJE/MAX1249_MJE .................... -55°C to +125°C
DD
MIN
5.5
0.1
10
35
6
0
±0.25
±0.05
0.225
TYP
2.25
<50
-70
-75
1.0
1.8
66
70
30
A
= T
MAX
±0.5
±1.0
7.5
1.5
2.0
2.0
±1
±1
±2
±1
±2
65
MIN
ppm/°C
to T
UNITS
MHz
MHz
MHz
MHz
LSB
LSB
LSB
LSB
LSB
Bits
dB
dB
dB
dB
µs
µs
ns
ps
MAX
,