MAX192
Low-Power, 8-Channel,
Serial 10-Bit ADC
2 _______________________________________________________________________________________
V
DD
to AGND........................................................... -0.3V to +6V
AGND to DGND.................................................... -0.3V to +0.3V
CH0–CH7 to AGND, DGND ...................... -0.3V to (V
DD
+ 0.3V)
CH0–CH7 Total Input Current.......................................... ±20mA
VREF to AGND .......................................... -0.3V to (V
DD
+ 0.3V)
REFADJ to AGND...................................... -0.3V to (V
DD
+ 0.3V)
Digital Inputs to DGND.............................. -0.3V to (V
DD
+ 0.3V)
Digital Outputs to DGND........................... -0.3V to (V
DD
+ 0.3V)
Digital Output Sink Current.................................................25mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 11.11mW/°C above +70°C) ......... 889mW
SO (derate 10.00mW/°C above +70°C)...................... 800mW
SSOP (derate 8.00mW/°C above +70°C) ................... 640mW
CERDIP (derate 11.11mW/°C above +70°C).............. 889mW
Operating Temperature Ranges
MAX192_C_P..................................................... 0°C to +70°C
MAX192_E_P .................................................. -40°C to +85°C
MAX192_MJP ............................................... -55°C to +125°C
Storage Temperature Range............................ -60°C to +150°C
Lead Temperature (soldering, 10sec)............................ +300°C
ELECTRICAL CHARACTERISTICS
(V
DD
= 5V ±5%, f
CLK
= 2.0MHz, external clock (50% duty cycle), 15 clocks/conversion cycle (133ksps), 4.7µF capacitor at VREF pin,
T
A
= T
MIN
to T
MAX,
unless otherwise noted. Typical values are at T
A
= +25°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.
ABSOLUTE MAXIMUM RATINGS
MAX192A
-3dB rolloff
65kHz, V
IN
= 4.096Vp-p (Note 3)
External reference, 4.096V
MAX192B
No missing codes over temperature
External reference, 4.096V
CONDITIONS
kHz800Full-Power Bandwidth
MHz4.5Small-Signal Bandwidth
dB-75Channel-to-Channel Crosstalk
dB70SFDRSpurious-Free Dynamic Range
dB-70THD
Total Harmonic Distortion
(up to the 5th harmonic)
dB66SINADSignal-to-Noise + Distortion Ratio
±1/2
Bits10Resolution
LSB±0.1
Channel-to-Channel
Offset Matching
ppm/°C±0.8Gain Temperature Coefficient
LSB
±1
Relative Accuracy (Note 2)
LSB±1DNLDifferential Nonlinearity
LSB±2Offset Error
LSB±2Gain Error
UNITSMIN TYP MAXSYMBOLPARAMETER
Internal clock 5.5 10
Conversion Time (Note 4) t
CONV
External clock, 2MHz, 12 clocks/conversion 6
µs
Track/Hold Acquisition Time t
AZ
1.5 µs
Aperture Delay 10 ns
Aperture Jitter <50 ps
Internal Clock Frequency 1.7 MHz
DC ACCURACY (Note 1)
DYNAMIC SPECIFICATIONS (10kHz sine-wave input, 4.096Vp-p, 133ksps, 2.0MHz external clock)
CONVERSION RATE
