Datasheet

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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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 ±1µA
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