Low-Power, 8-Channel,
Serial 12-Bit ADCs
MAX186/MAX188
ABSOLUTE MAXIMUM RATINGS
V
DD
to AGND............................................................-0.3V to +6V
V
SS
to AGND ............................................................+0.3V to -6V
V
DD
to V
SS
..............................................................-0.3V to +12V
AGND to DGND.....................................................-0.3V to +0.3V
CH0鈥揅H7 to AGND, DGND .............(V
SS
- 0.3V) to (V
DD
+ 0.3V)
CH0鈥揅H7 Total Input Current ..........................................鹵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擄C)
Plastic DIP (derate 11.11mW/擄C above +70擄C) ...........889mW
SO (derate 10.00mW/擄C above +70擄C) ........................800mW
SSOP (derate 8.00mW/擄C above +70擄C) .....................640mW
CERDIP (derate 11.11mW/擄C above +70擄C) ................889mW
Operating Temperature Ranges:
MAX186_C/MAX188_C ........................................0擄C to +70擄C
MAX186_E/MAX188_E......................................-40擄C to +85擄C
MAX186_M/MAX188_M ..................................-55擄C to +125擄C
Storage Temperature Range .............................-60擄C to +150擄C
Lead Temperature (soldering, 10sec) .............................+300擄C
Stresses beyond those listed under 鈥淎bsolute Maximum Ratings鈥?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
(V
DD
= 5V 鹵5%; V
SS
= 0V or -5V; f
CLK
= 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps); MAX186鈥?/div>
4.7碌F capacitor at VREF pin; MAX188鈥攅xternal reference, VREF = 4.096V applied to VREF pin; T
A
= T
MIN
to T
MAX
, unless otherwise
noted.)
PARAMETER
DC ACCURACY
(Note 1)
Resolution
MAX186A/MAX188A
MAX186B/MAX188B
Relative Accuracy (Note 2)
MAX186C
MAX188C
MAX186D/MAX188D
Differential Nonlinearity
DNL
No missing codes over temperature
MAX186A/MAX188A
Offset Error
MAX186B/MAX188B
MAX186C/MAX188C
MAX186D/MAX188D
MAX186 (all grades)
MAX188A
Gain Error (Note 3)
External reference
4.096V (MAX188)
MAX188B
MAX188C
MAX188D
Gain Temperature Coefficient
Channel-to-Channel
Offset Matching
Signal-to-Noise + Distortion Ratio
Total Harmonic Distortion
(up to the 5th harmonic)
Spurious-Free Dynamic Range
Channel-to-Channel Crosstalk
SINAD
THD
SFDR
65kHz, V
IN
= 4.096V
P-P
(Note 4)
80
-85
70
-80
External reference, 4.096V
鹵0.8
鹵0.1
12
鹵0.5
鹵0.5
鹵1.0
鹵0.75
鹵1.0
鹵1
鹵2.0
鹵3.0
鹵3.0
鹵3.0
鹵3.0
鹵1.5
鹵2.0
鹵2.0
鹵3.0
ppm/擄C
LSB
LSB
LSB
LSB
LSB
Bits
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DYNAMIC SPECIFICATIONS
(10kHz sine wave input, 4.096V
P-P
, 133ksps, 2.0MHz external clock, bipolar input mode)
dB
dB
dB
dB
2
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