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MAX1040 Datasheet, PDF (8/44 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 (MAX1041/MAX1043/MAX1047/MAX1049), external reference VREF = 2.5V (MAX1041/MAX1043/
MAX1047/MAX1049), AVDD = DVDD = 4.75V to 5.25V (MAX1040/MAX1042/MAX1046/MAX1048), external reference VREF = 4.096V
(MAX1040/MAX1042/MAX1046/MAX1048), fSCLK = 4.8MHz (50% duty cycle), TA = -40°C to +85°C, unless otherwise noted. Typical
values are at AVDD = DVDD = 3V (MAX1041/MAX1043/MAX1047/MAX1049), AVDD = DVDD = 5V (MAX1040/MAX1042/
MAX1046/MAX1048), TA = +25°C. Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CNVST Pulse Width
CKSEL = 00, CKSEL = 01 (temp sense)
40
tCSW CKSEL = 01 (voltage conversion)
1.4
ns
µs
Note 1: Tested at DVDD = AVDD = 3.6V (MAX1041/MAX1043/MAX1047/MAX1049), DVDD = AVDD = 5.25V (MAX1040/MAX1042/
MAX1046/MAX1048).
Note 2: Offset nulled.
Note 3: No bus activity during conversion. Conversion time is defined as the number of conversion clock cycles multiplied by the
clock period.
Note 4: See Table 5 for reference-mode details.
Note 5: Not production tested. Guaranteed by design.
Note 6: See the ADC/DAC References section.
Note 7: Fast automated test, excludes self-heating effects.
Note 8: Specified over the -40°C to +85°C temperature range.
Note 9: REFSEL[1:0] = 00 or when DACs are not powered up.
Note 10: DAC linearity, gain, and offset measurements are made between codes 115 and 3981.
Note 11: The DAC buffers are guaranteed by design to be stable with a 1nF load.
Note 12: Time required by the DAC output to power up and settle within 1 LSB in the external reference mode.
Note 13: All DAC dynamic specifications are valid for a load of 100pF and 10kΩ.
Note 14: Only one digital output (either DOUT, EOC, or the GPIOs) can be indefinitely shorted to either supply at one time.
Note 15: All digital inputs at either DVDD or DGND. DVDD should not exceed AVDD.
Note 16: See the Reset Register section and Table 9 for details on programming the SLOW bit.
Note 17: Clock mode 11 only.
Typical Operating Characteristics
(AVDD = DVDD = 3V (MAX1041/MAX1043/MAX1047/MAX1049), external VREF = 2.5V (MAX1041/MAX1043/MAX1047/MAX1049),
AVDD = DVDD = 5V (MAX1040/MAX1042/MAX1046/MAX1048), external VREF = 4.096V (MAX1040/MAX1042/MAX1046/MAX1048),
fCLK = 4.8MHz (50% duty cycle), fSAMPLE = 300ksps, CLOAD = 50pF, 0.1µF capacitor at REF, TA = +25°C, unless otherwise noted.)
SHUTDOWN CURRENT
vs. ANALOG SUPPLY VOLTAGE
0.30
SHUTDOWN CURRENT
vs. ANALOG SUPPLY VOLTAGE
0.20
SHUTDOWN CURRENT
vs. TEMPERATURE
0.6
0.25
0.20
0.15
0.10
0.05
MAX1040/MAX1042/MAX1046/MAX1048
0
4.75 4.85 4.95 5.05 5.15 5.25
SUPPLY VOLTAGE (V)
0.18
0.16
0.14
0.12
MAX1041/MAX1043/MAX1047/MAX1049
0.10
2.7
3.0
3.3
3.6
SUPPLY VOLTAGE (V)
0.5
0.4
0.3
0.2
0.1
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
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