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MAX1294 Datasheet(Fiches technique) 3 Page - Maxim Integrated Products

Numéro de pièce MAX1294
Description  420ksps, 5V, 6-/2-Channel, 12-Bit ADCs with 2.5V Reference and Parallel Interface
Télécharger  20 Pages
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  http://www.maxim-ic.com
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 3 page
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IDD
420ksps, +5V, 6-/2-Channel, 12-Bit ADCs
with +2.5V Reference and Parallel Interface
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +5V ±10%, COM = GND, REFADJ = VDD, VREF = +2.5V, 4.7µF capacitor at REF pin, fCLK = 7.6MHz (50% duty cycle),
TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Shutdown mode
VREF = 2.5V, fSAMPLE = 420ksps
0 to 0.5mA output load
To power down the internal reference
For small adjustments
On/off-leakage current, VIN = 0 or VDD
Unipolar, VCOM = 0
Bipolar, VCOM = VREF/2
2
µA
200
300
IREF
V
1.0
VDD +
50mV
VREF
REF Input Voltage Range
µF
4.7
10
Capacitive Bypass at REF
µF
0.01
1
Capacitive Bypass at REFADJ
mV/mA
0.2
0.5
Load Regulation (Note 7)
V
VDD - 1
REFADJ High Threshold
mV
±100
REFADJ Input Range
ppm/°C
±20
TCREF
REF Temperature Coefficient
mA
15
REF Short-Circuit Current
V
2.49
2.5
2.51
REF Output Voltage
pF
12
CIN
Input Capacitance
µA
±0.01
±1
Multiplexer Leakage Current
V
0
VREF
VIN
Analog Input Voltage Range
Single-Ended and Differential
(Note 6)
-VREF/2
+VREF/2
CS = VDD
ISOURCE = 1mA
ISINK = 1.6mA
VIN = 0 or VDD
µA
±0.1
±1
ILEAKAGE
Three-State Leakage Current
V
VDD - 0.5
VOH
Output Voltage High
V
0.4
VOL
Output Voltage Low
pF
15
CIN
Input Capacitance
µA
±0.1
±1
IIN
Input Leakage Current
mV
200
VHYS
Input Hysteresis
V
0.8
VIL
Input Voltage Low
V
4.0
VIH
Input Voltage High
CS = VDD
V
4.5
5.5
VDD
Analog Supply Voltage
pF
15
COUT
Three-State Output Capacitance
2.6
2.9
REF Input Current
µA
External reference
2.2
2.5
External reference
0.5
0.8
mA
Internal reference
1.0
1.2
Power-Supply Rejection
PSR
VDD = 5V ±10%, full-scale input
±0.3
±0.7
mV
Positive Supply Current
IDD
Shutdown mode
210
µA
ANALOG INPUTS
INTERNAL REFERENCE
EXTERNAL REFERENCE AT REF
DIGITAL INPUTS AND OUTPUTS
POWER REQUIREMENTS
Internal reference
Operating mode,
fSAMPLE = 420ksps
Standby mode




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