DAC7750_15 Datasheet, PDF (20/53 Pages) Texas Instruments – DACx750 Single-Channel, 12- and 16-Bit Programmable Current Output Digital-to-Analog Converters for 4-mA to 20-mA Current Loop Applications

DAC7750, DAC8750
SBAS538A – DECEMBER 2013 – REVISED MARCH 2014
Typical Characteristics (continued)
At T_A = +25°C, unless otherwise noted.
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
Time (2 µs/div)
AVDD = 24 V
R_LOAD = 300 Ω
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8000h to 7FFFh
7FFFh to 8000h
Time (2 µs/div)
C002
C001
AVDD = 24 V
R_LOAD = 250 Ω
Figure 46. IOUT Output Enable Glitch
1200
1000
800
600
400
200
0
10
100
1k
Frequency (Hz)
AVDD = 24 V
R_LOAD = 300 Ω
10k
100k
C003
All IOUT ranges
Figure 47. IOUT Digital-to-Analog Glitch
AVDD = 24 V
DAC = midscale
Time (4 s/div)
C002
0-mA to 20-mA range
Figure 48. IOUT Noise PSD vs Frequency
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
0
4
8
12 16 20 24 28 32 36
IOUT Terminal Voltage (V)
C001
AVDD = 36 V
Output disabled
Figure 49. IOUT Peak-to-Peak Noise vs Time
(0.1 Hz to 10 Hz)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
100
AVDD = 24 V
1k
10k
Frequency (Hz)
R_LOAD = 250 Ω
100k
1M
C002
All IOUT ranges
Figure 50. IOUT Hi-Z Leakage Current vs Voltage
Figure 51. IOUT PSRR vs Frequency
20
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