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| MAX1239EEE-T Datasheet, PDF (3/22 Pages) Maxim Integrated Products – 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs | |||
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2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 2.7V to 3.6V (MAX1237/MAX1239), VDD = 4.5V to 5.5V (MAX1236/MAX1238), VREF = 2.048V (MAX1237/MAX1239), VREF =
4.096V (MAX1236/MAX1238), fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, see
Tables 1â5 for programming notation.)
PARAMETER
SYMBOL
CONDITIONS
Internal clock, SCAN[1:0] = 01
Throughput Rate
fSAMPLE
Internal clock, SCAN[1:0] = 00
CS[3:0] = 1011 (MAX1238/MAX1239)
Track/Hold Acquisition Time
Internal Clock Frequency
Aperture Delay (Note 5)
ANALOG INPUT (AIN0âAIN11)
External clock
External clock, fast mode
tAD
External clock, high-speed mode
Input-Voltage Range, Single-
Ended and Differential (Note 6)
Input Multiplexer Leakage Current
Input Capacitance
CIN
INTERNAL REFERENCE (Note 7)
Reference Voltage
VREF
Unipolar
Bipolar
ON/OFF leakage current, VAIN_ = 0V or VDD
TA = +25°C
MAX1237/MAX1239
MAX1236/MAX1238
Reference-Voltage Temperature
Coefficient
TCVREF
REF Short-Circuit Current
REF Source Impedance
EXTERNAL REFERENCE
REF Input-Voltage Range
VREF
REF Input Current
IREF
DIGITAL INPUTS/OUTPUTS (SCL, SDA)
Input-High Voltage
VIH
Input-Low Voltage
VIL
Input Hysteresis
VHYST
Input Current
IIN
Input Capacitance
CIN
Output Low Voltage
VOL
(Note 8)
fSAMPLE = 94.4ksps
VIN = 0V to VDD
ISINK = 3mA
MIN TYP MAX UNITS
51
51
ksps
94.4
800
2.8
60
30
ns
MHz
ns
0
VREF
V
0
±VREF/2
±0.01 ±1
µA
22
pF
1.968 2.048 2.128
V
3.936 4.096 4.256
25
ppm/°C
2
mA
1.5
kΩ
1
VDD
V
40
µA
0.7 â VDD
V
0.3 â VDD
V
0.1 â VDD
V
±10
µA
15
pF
0.4
V
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