DAC7551 Datasheet, PDF (10/18 Pages) Texas Instruments – 12-BIT, ULTRALOW GLITCH, VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER

DAC7551
SLAS441 – MARCH 2005
TYPICAL CHARACTERISTICS (continued)
1600
SUPPLY CURRENT
vs
LOGIC INPUT VOLTAGE
T_A = 255C,
SCLK Input (All Other Inputs = GND)
1200
800
V_DD = 5.5 V,
V_REFH= 4.096 V,
V_REFL=GND
400
V_DD = 2.7 V,
V_REFH= 2.5 V
V_REFL= GND
0
0
1
2
3
4
5
V_LOGIC − Logic Input Voltage − V
Figure 14.
HISTOGRAM OF CURRENT CONSUMPTION - 2.7 V
2000
V_DD = 2.7 V,
V_REFH= 2.5 V,
V_REFL= GND
1500
1000
500
0 _{117 124 131 138 145 152 159 166 173}
I_DD − Current Consumption − mA
Figure 16.
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HISTOGRAM OF CURRENT CONSUMPTION - 5.5 V
2000
1500
V_DD = 5.5 V,
V_REFH= 4.096 V,
V_REFL=GND
1000
500
0
128 136 144 152 160 168 176 184 192
I_DD − Current Consumption − mA
Figure 15.
TOTAL ERROR - 5 V
4
V_DD = 5 V,
V_REFH= 4.096 V,
V_REFL= GND,
T_A = 255C
2
0
−2
−4
0 512 1024 1536 2048 2560 3072 3584 4095
Digital Input Code
Figure 17.
10