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MAX1258 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX1258
Description  12-Bit, Multichannel ADCs/DACs with FIFO,Temperature Sensing, and GPIO Ports
PDF  43 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1258 Datasheet(HTML) 4 Page - Maxim Integrated Products

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12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = 2.7V to 3.6V (MAX1257), external reference VREF = 2.5V (MAX1257), VAVDD = 4.75V to 5.25V, VDVDD = 2.7V to VAVDD
(MAX1220/MAX1258), external reference VREF = 4.096V (MAX1220/MAX1258), fCLK = 3.6MHz (50% duty cycle), TA = -40°C to +85°C,
unless otherwise noted. Typical values are at VAVDD = VDVDD = 3V (MAX1257), VAVDD = VDVDD = 5V (MAX1220/MAX1258), TA = +25°C.
Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VREF = 2.5V (MAX1257), fSAMPLE =
25
80
VREF = 4.096V (MAX1220/MAX1258),
fSAMPLE = 225ksps
40
80
REF1 Input Current (Note 9)
IREF1
Acquisition between conversions
±0.01
±1
µA
VREF = 2.5V (MAX1257), fSAMPLE =
25
80
VREF = 4.096V (MAX1220/MAX1258),
fSAMPLE = 225ksps
40
80
REF2 Input Current
IREF2
Acquisition between conversions
±0.01
±1
µA
DAC
DC ACCURACY (Note 10)
Resolution
12
Bits
Integral Nonlinearity
INL
±0.5
±4
LSB
Differential Nonlinearity
DNL
Guaranteed monotonic
±1.0
LSB
Offset Error
VOS
(Note 8)
±3
±10
mV
Offset-Error Drift
±10
ppm of
FS/°C
Gain Error
GE
(Note 8)
±5
±10
LSB
Gain Temperature Coefficient
±8
ppm of
FS/°C
DAC OUTPUT
No load
0.02
VAVDD -
0.02
Output-Voltage Range
10k load to either rail
0.1
VAVDD -
0.1
V
DC Output Impedance
0.5
Capacitive Load
(Note 11)
1
nF
VAVDD = 2.7V, VREF = 2.5V (MAX1257),
gain error < 1%
2000
Resistive Load to AGND
RL
VAVDD = 4.75V, VREF = 4.096V
(MAX1220/MAX1258), gain error < 2%
500
From power-down mode, VAVDD = 5V
25
Wake-Up Time (Note 12)
From power-down mode, VAVDD = 2.7V
21
µs
1k Output Termination
Programmed in from power-down mode
1
k
100k Output Termination
At wake-up or programmed in
power-down mode
100
k



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