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MAX1221 Datasheet, PDF (15/44 Pages) Maxim Integrated Products – 12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
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12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
Typical Operating Characteristics (continued)
(AVDD = DVDD = 3V external VREF = 2.5V, fCLK = 3.6MHz (50% duty cycle), fSAMPLE = 225ksps, CLOAD = 50pF, 0.1µF capacitor at
REF, TA = +25°C, unless otherwise noted.)
NEGATIVE FULL-SCALE SETTLING TIME
(RLOAD = 10kΩ, CLOAD = 100pF)
MAX1340 toc50
NEGATIVE FULL-SCALE SETTLING TIME
(RLOAD = 10kΩ, CLOAD = 100pF)
MAX1221 toc51
VOUT
1V/div
1μs/div
VLDAC
1V/div
POSITIVE FULL-SCALE SETTLING TIME
(RLOAD = 10kΩ, CLOAD = 100pF)
MAX1221 toc52
VLDAC
2V/div
VOUT_
2V/div
AVDD = DVDD = 5V
EXTERNAL REFERENCE = 4.096V
2μs/div
POSITIVE FULL-SCALE SETTLING TIME
(RLOAD = 10kΩ, CLOAD = 100pF)
MAX1221 toc53
VOUT_
1V/div
1μs/div
VLDAC
1V/div
ADC REFERENCE FEEDTHROUGH
(RLOAD = 10kΩ, CLOAD = 100pF)
MAX1221 toc54
VREF2
1V/div
VLDAC
2V/div
AVDD = DVDD = 5V
EXTERNAL REFERENCE = 4.096V
1μs/div
VOUT_
2V/div
ADC REFERENCE FEEDTHROUGH
(RLOAD = 10kΩ, CLOAD = 100pF)
MAX1221 toc55
VREF2
2V/div
ADC REFERENCE SWITCHING
200μs/div
VDAC-OUT
10mV/div
AC-COUPLED
AVDD = DVDD = 5V
EXTERNAL REFERENCE = 4.096V
ADC REFERENCE SWITCHING
200μs/div
VDAC-OUT
2mV/div
AC-COUPLED
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