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| MAX1329 Datasheet, PDF (22/78 Pages) Maxim Integrated Products – 12-/16-Bit DASs with ADC, DACs, DPIOs, APIOs, Reference, Voltage Monitors, and Temp Sensor | |||
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12-/16-Bit DASs with ADC, DACs, DPIOs, APIOs,
Reference, Voltage Monitors, and Temp Sensor
Typical Operating Characteristics (continued)
(AVDD = 5.0V, VREFADC = VREFDAC = 2.5V for DVDD = 3.0V; TA = +25°C, unless otherwise noted.)
CHARGE-PUMP OUTPUT VOLTAGE
vs. OUTPUT CURRENT (AVDD = 5V)
5.2
5.1
DVDD = 3.6V
5.0
4.9
DVDD = 3.3V
4.8
DVDD = 3.0V
4.7
4.6
DVDD = 2.7V
4.5
0
5 10 15 20 25 30 35 40 45 50
IOUT (mA)
CHARGE-PUMP RIPPLE (IOUT = 5mA,
DVDD = 2V, CHARGE-PUMP CLOCK = 78kHz)
MAX1329 toc70
AVDD = +3.0V, DVDD = +2.0V
CHARGE-PUMP LOAD TRANSIENT
RESPONSE FOR 0.1mA TO 1.0mA LOAD
MAX1329 toc71
AVDD = +3.0V, DVDD = +2.0V
AVDD
4µs/div
2mV/div
AVDD
IAVDD
1ms/div
1mA
1mV/div
0
CHARGE-PUMP LINE TRANSIENT RESPONSE
FOR +2.0V TO +2.5V STEP INPUT
MAX1329 toc72
AVDD = +3.0V, 3.0k⦠LOAD
DVDD
2.5V
500mV/div
2V
AVDD
100mV/div
2ms/div
CHARGE-PUMP SUPPLY CURRENT
vs. SUPPLY VOLTAGE
400
380
360
AVDD = 5V
340
320
AVDD = 4.0V
300
280
260
AVDD = 3.0V
240
220
200
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
DVDD (V)
22 ______________________________________________________________________________________
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