MAX1036–MAX1039
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel 2-Wire Serial 8-Bit ADCs
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3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 2.7V to 3.6V (MAX1037/MAX1039), VDD = 4.5V to 5.5V (MAX1036/MAX1038). External reference, VREF = 2.048V
(MAX1037/MAX1039), VREF = 4.096V (MAX1036/MAX1038). External clock, fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Internal clock, SCAN[1:0] = 01
(MAX1036/MAX1037)
76
Internal clock, SCAN[1:0] = 00
CS[3:0] = 1011 (MAX1038/MAX1039)
77
Throughput Rate
fSAMPLE
External clock
188
ksps
Track/Hold Acquisition Time
588
ns
Internal Clock Frequency
2.25
MHz
External clock, fast mode
45
Aperture Delay
tAD
External clock, high-speed mode
30
ns
ANALOG INPUT (AIN0–AIN11)
Unipolar
0
VREF
Input Voltage Range, Single
Ended and Differential (Note 6)
Bipolar
±VREF / 2
V
Input Multiplexer Leakage Current
On/off-leakage current, VAIN_= 0 or VDD,
no clock, fSCL = 0
±0.01
±1A
Input Capacitance
CIN
18
pF
INTERNAL REFERENCE (Note 7)
MAX1037/MAX1039
1.925
2.048
2.171
Reference Voltage
VREF
TA = +25°C
MAX1036/MAX1038
3.850
4.096
4.342
V
Reference Temperature
Coefficient
TCREF
120
ppm/
°C
Reference Short-Circuit Current
10
mA
Reference Source Impedance
(Note 8)
675
Ω
EXTERNAL REFERENCE
Reference Input Voltage Range
VREF
(Note 9)
1.0
VDD
V
REF Input Current
IREF
fSAMPLE = 188ksps
14
30
A
DIGITAL INPUTS/OUTPUTS (SCL, SDA)
Input High Voltage
VIH
0.7 x VDD
V
Input Low Voltage
VIL
0.3 x VDD
V
Input Hysteresis
VHYST
0.1 x VDD
V
Input Current
IIN
VIN = 0 to VDD
±10
A
Input Capacitance
CIN
15
pF
Output Low Voltage
VOL
ISINK = 3mA
0.4
V
