MAX1246 Maxim, MAX1246 Datasheet - Page 2

• Manufacturer Part Number: MAX1246
• Description: +2.7V / Low-Power / 4-Channel / Serial 12-Bit ADCs in QSOP-16
• 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
15 clocks/conversion cycle (133ksps); MAX1246—4.7µF capacitor at VREF pin; MAX1247—external reference, VREF = 2.500 V
applied to VREF pin; T
+2.7V, Low-Power, 4-Channel,
Serial 12-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 +3.6V (MAX1246); V
PARAMETER
A
= T
MIN
to T
A
= +70°C)
MAX
SYMBOL
DD
SINAD
t
SFDR
; unless otherwise noted.)
CONV
t
DNL
THD
INL
ACQ
= +2.7V to +5.25V (MAX1247); COM = 0V; f
MAX124_A
MAX124_B
No missing codes over temperature
MAX124_A
MAX124_B
Up to the 5th harmonic
65kHz, 2.500V
-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
p-p
CONDITIONS
(Note 4)
Operating Temperature Ranges
Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
QSOP (derate 8.36mW/°C above +70°C) ................... 667mW
CERDIP (derate 10.00mW/°C above +70°C) .............. 800mW
MAX1246_C_E/MAX1247_C_E .......................... 0°C to +70°C
MAX1246_E_E/MAX1247_E_E........................ -40°C to +85°C
MAX1246_MJE/MAX1247_MJE .................... -55°C to +125°C
DD
SCLK
= 2.0MHz; external clock (50% duty cycle);
MIN
5.5
0.1
12
70
80
35
6
0
±0.25
±0.25
0.225
±0.5
±0.5
±0.5
TYP
2.25
<50
-88
-85
1.0
1.8
73
90
30
MAX
±0.5
±1.0
-80
7.5
1.5
2.0
2.0
±1
±3
±4
±4
65
ppm/°C
UNITS
MHz
MHz
MHz
MHz
LSB
LSB
LSB
LSB
LSB
Bits
dB
dB
dB
dB
µs
µs
ns
ps