Electrical characteristics (continued) – Rainbow Electronics MAX1039 User Manual
Page 3
MAX1036–MAX1039
2.7V to 5.5V, Low-Power, 4-/12-Channel
2-Wire Serial 8-Bit ADCs
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 3.6V (MAX1037/MAX1039), V
DD
= 4.5V to 5.5V (MAX1036/MAX1038). External reference, V
REF
= 2.048V
(MAX1037/MAX1039), V
REF
= 4.096V (MAX1036/MAX1038). External clock, f
SCL
= 1.7MHz, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +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
f
SAMPLE
External clock
188
ksps
Track/Hold Acquisition Time
588
ns
Internal Clock Frequency
2.25
MHz
External clock, fast mode
45
Aperture Delay
t
AD
External clock, high-speed mode
30
ns
ANALOG INPUT (AIN0–AIN11)
Unipolar
0
V
REF
Input Voltage Range, Single
Ended and Differential (Note 6)
Bipolar
±V
REF
/ 2
V
Input Multiplexer Leakage Current
On/off-leakage current, V
AIN
_= 0 or V
DD,
no clock, f
SCL
= 0
±0.01
±1
µA
Input Capacitance
C
IN
18
pF
INTERNAL REFERENCE (Note 7)
MAX1037/MAX1039
1.925
2.048
2.171
Reference Voltage
V
REF
T
A
= +25°C
MAX1036/MAX1038
3.850
4.096
4.342
V
Reference Temperature
Coefficient
TC
REF
120
ppm/
°C
Reference Short-Circuit Current
10
mA
Reference Source Impedance
(Note 8)
675
Ω
EXTERNAL REFERENCE
Reference Input Voltage Range
V
REF
(Note 9)
1.0
V
DD
V
REF Input Current
I
REF
f
SAMPLE
= 188ksps
14
30
µA
DIGITAL INPUTS/OUTPUTS (SCL, SDA)
Input High Voltage
V
IH
0.7 x V
DD
V
Input Low Voltage
V
IL
0.3 x V
DD
V
Input Hysteresis
V
HYST
0.1 x V
DD
V
Input Current
I
IN
V
IN
= 0 to V
DD
±10
µA
Input Capacitance
C
IN
15
pF
Output Low Voltage
V
OL
I
SINK
= 3mA
0.4
V