DAC7564 Datasheet, PDF (15/46 Pages) Texas Instruments – 12-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/°C Internal Reference

DAC7564
www.ti.com
SBAS413A – FEBRUARY 2008 – REVISED MARCH 2008
TYPICAL CHARACTERISTICS: DAC at AV_DD = 5V (continued)
At T_A = +25°C, external reference used, DAC output not loaded, and all DAC codes in straight binary data format, unless
otherwise noted.
94
92
90
88
86
84
82
80
78
76
74
0
SIGNAL-TO-NOISE RATIO
vs OUTPUT FREQUENCY
Channel C
Channel B
Channel A
Channel D
All Channels
AV_DD = 5V, External V_REF = 4.99V
-1dB FSR Digital Input, f_S = 225kSPS
Measurement Bandwidth = 20kHz
1
2
3
4
5
f_OUT (kHz)
Figure 42.
FULL-SCALE SETTLING TIME:
5V RISING EDGE
Trigger Pulse 5V/div
0
-20
-40
-60
-80
-100
-120
-140
0
POWER SPECTRAL DENSITY
AV_DD = 5V, External V_REF = 4.99V
f_OUT = 1kHz, f_S = 225kSPS
Measurement Bandwidth = 20kHz
5
10
15
20
Frequency (Hz)
Figure 43.
FULL-SCALE SETTLING TIME:
5V FALLING EDGE
Trigger Pulse 5V/div
Rising Edge
1V/div
AV_DD = 5V
Ext V_REF = 4.096V
From Code: 0000h
To Code: 0FFFh
Zoomed Rising Edge
1mV/div
Time (2ms/div)
Figure 44.
HALF-SCALE SETTLING TIME:
5V RISING EDGE
Trigger Pulse 5V/div
Rising
Edge
1V/div
AV_DD = 5V
Ext V_REF = 4.096V
From Code: 0400h
To Code: 0C00h
Zoomed Rising Edge
1mV/div
Time (2ms/div)
Figure 46.
AV_DD = 5V
Ext V_REF = 4.096V
From Code: 0FFFh
To Code: 0000h
Falling
Edge
1V/div
Zoomed Falling Edge
1mV/div
Time (2ms/div)
Figure 45.
HALF-SCALE SETTLING TIME:
5V FALLING EDGE
Trigger Pulse 5V/div
AV_DD = 5V
Ext V_REF = 4.096V
From Code: 0C00h
To Code: 0400h
Falling
Edge
1V/div
Zoomed Falling Edge
1mV/div
Time (2ms/div)
Figure 47.
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): DAC7564
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