MAX1245 Maxim, MAX1245 Datasheet - Page 2

• Manufacturer Part Number: MAX1245
• Description: +2.375V / Low-Power / 8-Channel / Serial 12-Bit ADC
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
V
AGND to DGND.................................................... -0.3V to +0.3V
CH0–CH7, 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
VREF = 2.048V applied to VREF pin, T
+2.375V, Low-Power, 8-Channel,
Serial 12-Bit ADC
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, 0Vp-p to 2.048Vp-p, 100ksps, 1.5MHz external clock, bipolar input mode)
CONVERSION RATE
DD
Plastic DIP (derate 11.11mW/°C above +70°C) ......... 889mW
_______________________________________________________________________________________
to AGND, DGND .............................................. -0.3V to +6V
= +2.375V to +3.3V, COM = 0V, f
PARAMETER
A
= +70°C)
SYMBOL
A
SINAD
t
SFDR
CONV
t
DNL
THD
ACQ
= T
INL
CLK
MIN
= 1.5MHz, external clock (50% duty cycle), 15 clocks/conversion cycle (100ksps),
to T
MAX1245A
MAX1245B
No missing codes over temperature
Up to the 5th harmonic
50kHz, 2V
-3dB rolloff
Internal clock, SHDN = FLOAT
Internal clock, SHDN = V
External clock = 1.5MHz, 12 clocks/conversion
External clock = 1.5MHz
SHDN = FLOAT
SHDN = V
Data transfer only
MAX
DD
DD
DD
, unless otherwise noted.)
+ 0.3V)
+ 0.3V)
+ 0.3V)
p-p
DD
(Note 4)
CONDITIONS
Operating Temperature Ranges
Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
SSOP (derate 8.00mW/°C above +70°C) ................... 640mW
CERDIP (derate 11.11mW/°C above +70°C) .............. 889mW
MAX1245_C_P ................................................... 0°C to +70°C
MAX1245_E_P ................................................ -40°C to +85°C
DD
MIN
5.5
0.1
12
68
76
35
8
0
±0.25
0.225
±0.5
±0.5
±0.2
TYP
2.25
<50
-85
1.0
1.5
40
MAX
±0.5
±1.0
-76
7.5
2.0
1.5
1.5
±1
±4
±4
65
ppm/°C
UNITS
MHz
MHz
MHz
MHz
LSB
LSB
LSB
LSB
LSB
Bits
dB
dB
dB
dB
µs
µs
ns
ps