MAX521ACAG Просмотр технического описания (PDF) - Maxim Integrated
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MAX521ACAG Datasheet PDF : 20 Pages
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Quad/Octal, 2-Wire Serial 8-Bit DACs
with Rail-to-Rail Outputs
__________________________________________Typical Operating Characteristics
(VDD = 5V, DAC outputs unloaded, TA = +25°C, unless otherwise noted.)
MAX521
SUPPLY CURRENT vs. TEMPERATURE
12
VDD = 5.5V
ALL REF INPUTS = 0.6V
10
ALL DIGITAL INPUTS to VDD
MAX521
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
6
VDD = 5.5V
ALL REF INPUTS = 0.6V
5
ALL DIGITAL INPUTS to VDD
MAX521
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
10
ALL REFERENCE
INPUTS DRIVEN
8
8 ALL DAC CODES FF HEX
4
6
3
4
2
ALL DAC CODES 00 HEX
2
1
6
ALL DAC CODES = FF HEX
4
2
ALL DAC CODES = 00 HEX
0
-60
-20 20
60 100 140
TEMPERATURE (°C)
MAX521
DAC OUTPUT HIGH VOLTAGE
vs. OUTPUT SOURCE CURRENT
1.0
VREF = 5V
DAC CODE = FF HEX
0.8 LOAD to AGND
0.6
0.4
0.2
VOUT = VREF x (255/256)
0
0 2 4 6 8 10 12 14 16
OUTPUT SOURCE CURRENT (mA)
MAX521
POSITIVE SETTLING TIME
0
-60
-20 20
60 100 140
TEMPERATURE (°C)
MAX521
DAC OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
1.0
VREF = 5V
DAC CODE = 00 HEX
0.8 LOAD to VDD
0.6
0.4
0.2
0
0
2
4
6
8
10
OUTPUT SINK CURRENT (mA)
0
0
1
2
3
4
5
REFERENCE VOLTAGE (V)
MAX521
REFERENCE VOLTAGE INPUT
FREQUENCY RESPONSE
2
0
-2
-4
-6
-8
4Vp-p SINE
2Vp-p SINE
-10
1Vp-p SINE
-12
0.5Vp-p SINE
-14
-16
VREF = SINE WAVE
CENTERED AT 2.5V
-18
1k
10k
100k
1M
10M
FREQUENCY (Hz)
MAX521
NEGATIVE SETTLING TIME
OUT1
1V/div
OUT1
1V/div
1µs/div
OUT1 LOADED WITH 10kΩ II 100pF, REF1 = 4V,
DAC CODE = 00 HEX to FF HEX
1µs/div
OUT1 LOADED WITH 10kΩ II 100pF, REF1 = 4V,
DAC CODE = FF HEX to 00 HEX
_______________________________________________________________________________________ 7
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