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| MAX1020 Datasheet, PDF (4/47 Pages) Maxim Integrated Products – 10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports | |||
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10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = 2.7V to 3.6V (MAX1021/MAX1023/MAX1057), external reference VREF = 2.5V (MAX1021/MAX1023/MAX1057), AVDD =
DVDD = 4.75V to 5.25V (MAX1020/MAX1022/MAX1058), external reference VREF = 4.096V (MAX1020/MAX1022/MAX1058), fSCLK = 4.8MHz
(50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical values are at AVDD = DVDD = 3V (MAX1021/MAX1023/MAX1057),
AVDD = DVDD = 5V (MAX1020/MAX1022/MAX1058), TA = +25°C. Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP MAX UNITS
REF1 Input Current (Note 9)
IREF1
VREF = 2.5V
(MAX1021/MAX1023/MAX1057),
fSAMPLE = 300ksps
VREF = 4.096V
(MAX1020/MAX1022/MAX1058),
fSAMPLE = 300ksps
Acquisition between conversions
25
80
µA
40
80
±0.01
±1
REF2 Input Current
DC ACCURACY (Note 10)
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Offset-Error Drift
Gain Error
Gain Temperature Coefficient
DAC OUTPUT
Output-Voltage Range
DC Output Impedance
Capacitive Load
IREF2
VREF = 2.5V
(MAX1021/MAX1023/MAX1057),
fSAMPLE = 300ksps
VREF = 4.096V
(MAX1020/MAX1022/MAX1058),
fSAMPLE = 300ksps
Acquisition between conversions
DAC
INL
DNL
VOS
Guaranteed monotonic
(Note 8)
GE (Note 8)
No load
10k⦠load to either rail
(Note 11)
25
80
µA
40
80
±0.01
±1
10
Bits
±0.5
±1
LSB
±0.5
LSB
±3
±10
mV
±10
ppm of
FS/°C
±1.25 ±10
LSB
±8
ppm of
FS/°C
0.02
0.1
AVDD -
0.02
V
AVDD -
0.1
0.5
â¦
1
nF
AVDD = 2.7V, VREF = 2.5V
(MAX1021/MAX1023/MAX1057),
2000
gain error < 1%
Resistive Load to AGND
RL
â¦
AVDD = 4.75V, VREF = 4.096V
(MAX1020/MAX1022/MAX1058),
500
gain error < 2%
4 _______________________________________________________________________________________
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