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MAX191 Datasheet(HTML) 3 Page - Maxim Integrated Products

Part No. MAX191
Description  Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX191 Datasheet(HTML) 3 Page - Maxim Integrated Products

 
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mA
Low-Power, 12-Bit Sampling ADC
with Internal Reference and Power-Down
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 5V ±5%, VSS = 0V or -5V ±5%, fCLK = 1.6MHz, 50% duty cycle, AIN- = AGND, BIP = 0V, slow-memory mode, internal-reference
mode, reference compensation mode—external, synchronous operation, Figure 6, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PD External Leakage for Float
State (Note 12)
VFLT
V
2.8
Reference compensation mode—external
PD Floating-State Voltage
nA
±100
Maximum current allowed for “floating state”
IIN
µA
±20
PD = 0V to V
DD (Note 11)
PD Input Current
±200
PD = high/float
IIN
µA
±0.1
PD = low
Input Current CLK
CIN
pF
10
Input Capacitance (Note 6)
VIL
V
0.5
PD Input Low Voltage
VIH
V
4.5
PD Input High Voltage
IIN
µA
±10
VIN = 0V to VDD
Input Current
VIH
V
2.4
CS, RD, CLK, HBEN, PAR, BIP
Input High Voltage
VIL
V
0.8
CS, RD, CLK, HBEN, PAR, BIP
Input Low Voltage
k
5
10
External-reference mode
Input Resistance
mA
1
External-reference = 5V
Input Current
REFADJ Input Adjustment Range
(Note 10)
V
2.5
5.0
External-reference mode
Input Voltage Range
µA
60
REFADJ = 5V
REFADJ Input Current
V
2.4
REFADJ Output Voltage
V
4.5
REFADJ Disable Threshold
mV
-60
30
µV
±300
VDD = ±5%, VSS = ±5%
Power-Supply Rejection
µF
4.7
Reference compensation mode—external
Capacitive Load Required
mA
18
Output Short-Circuit Current
mV
4
TA = +25°C, IOUT = 0mA to 2mA
Load Regulation
SYMBOL
UNITS
MIN
TYP
MAX
CONDITIONS
PARAMETER
Input Voltage Range (Note 7)
V
VSS
VDD
Input Capacitance (Note 6)
pF
45
80
Input Leakage Current
µA
±10
VIN = VSS to VDD
50
MAX191_C
VREF Output Voltage
V
4.076
4.096
4.116
TA = +25°C
Small-Signal Bandwidth
MHz
2
60
MAX191_E
Output Current Capability (Note 9)
mA
2
TA = +25°C
VREF Output Tempco (Note 8)
ppm/°C
80
MAX191_M
ANALOG INPUT
INTERNAL REFERENCE
REFERENCE INPUT
LOGIC INPUTS


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