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| MAX1286 Datasheet, PDF (3/15 Pages) Maxim Integrated Products – 150ksps, 12-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs in SOT23 | |||
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150ksps, 12-Bit, 2-Channel Single-Ended, and
1-Channel True-Differential ADCs in SOT23
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +3.6V, VREF = +2.5V for MAX1287/MAX1289, or VDD = +4.75V to +5.25V, VREF = +4.096V for MAX1286/MAX1288,
0.1µF capacitor at REF, fSCLK = 8MHz (50% duty cycle), AIN- = GND for MAX1288/MAX1289. TA = TMIN to TMAX, unless otherwise
noted. Typical values at TA = +25°C.)
PARAMETER
Input Leakage Current
Input Capacitance
EXTERNAL REFERENCE INPUT
SYMBOL
CONDITIONS
Channel not selected or conversion stopped
MIN TYP MAX UNITS
±0.01 ±1
µA
34
pF
Input Voltage Range
VREF
1.0
VDD
V
+50mV
VREF = +2.5V at 150ksps
Input Current
IREF
VREF = +4.096V at 150ksps
Acquisition/Between conversions
DIGITAL INPUTS/OUTPUTS (SCLK, CNVST, DOUT)
Input Low Voltage
VIL
Input High Voltage
VIH
Input Leakage Current
IL
Input Capacitance
CIN
Output Low Voltage
VOL
ISINK = 2mA
ISINK = 4mA
16
30
26
45
µA
±0.01 ±1
0.8
V
VDD -1
V
±0.01 ±1.0
µA
15
pF
0.4
V
0.8
V
Output High Voltage
VOH
ISOURCE = 1.5mA
VDD
V
-0.5
Three-State Leakage Current
Three-State Output Capacitance
POWER REQUIREMENTS
COUT
CNVST = GND
CNVST = GND
±0.05 ±10
µA
15
pF
Positive Supply Voltage
Positive Supply Current
Positive Supply Rejection
MAX1086/MAX1088
VDD
MAX1087/MAX1089
fSAMPLE =150ksps
VDD = +3V
fSAMPLE =100ksps
fSAMPLE =10ksps
fSAMPLE =1ksps
IDD
fSAMPLE =150ksps
VDD = +5V
fSAMPLE =100ksps
fSAMPLE =10ksps
fSAMPLE =1ksps
Shutdown
PSR
VDD = 5V ±5%; full-scale input
VDD = +2.7V to +3.6V; full-scale input
4.75 5.0 5.25
V
2.7
3.0
3.6
245 350
150
15
2
320 400
µA
215
22
2.5
0.2
5
±0.3 ±1.0
mV
±0.4 ±1.2
_______________________________________________________________________________________ 3
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