DAC7568_13 Datasheet, PDF (17/65 Pages) Texas Instruments – 12-/14-/16-Bit, Octal-Channel, Ultralow Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTERS with 2.5V, 2ppm/°C Internal Reference

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DAC7568
DAC8168
DAC8568
SBAS430D – JANUARY 2009 – REVISED MAY 2012
TYPICAL CHARACTERISTICS: DAC at AV_DD = 5.5V (continued)
Channel-specific information provided as examples. At T_A = +25°C, external reference used, DAC output not loaded, and all
DAC codes in straight binary data format, unless otherwise noted.
2800
2400
POWER-SUPPLY CURRENT
vs LOGIC INPUT VOLTAGE
AV_DD = 5.5V
Internal Reference Disabled
SYNC Input (All other digital inputs = GND)
3200
2800
POWER-SUPPLY CURRENT
vs LOGIC INPUT VOLTAGE
AV_DD = 5.5V
Internal Reference Enabled
SYNC Input (All other digital inputs = GND)
2000
1600
Sweep from 0V to 5.5V
2400
2000
Sweep from 0V to 5.5V
1200
800
Sweep from
5.5V to 0V
1600
1200
Sweep from
5.5V to 0V
400
0
1
2
3
4
5
6
Logic Input Voltage (V)
Figure 43.
800
0
1
2
3
4
5
6
Logic Input Voltage (V)
Figure 44.
POWER-SUPPLY CURRENT
HISTOGRAM
35
AV_DD = 5.5V
30 ^{Internal Reference Disabled}
25
20
15
10
5
0
POWER-SUPPLY CURRENT
HISTOGRAM
35
AV_DD = 5.5V
30 ^{Internal Reference Enabled}
V_REF = 2.5V
25
20
15
10
5
0
I_DD (mA)
Figure 45.
95
93
91
89
87
85
83
81
79
77
75
0
SIGNAL-TO-NOISE RATIO
vs
OUTPUT FREQUENCY
I_DD (mA)
Figure 46.
Ch A
Ch B
Ch C
Ch D
Ch E
Ch F
Ch G
Ch H
AV_DD = 5.5V, External V_REF = 5V
f_S = 225kSPS, -1dB FSR Digital Input
Measurement Bandwidth = 20kHz
1
2
3
4
5
f_OUT (kHz)
Figure 47.
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