DAC7634 Datasheet, PDF (20/27 Pages) Burr-Brown (TI) – 16-BIT, QUAD VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER

DAC7634
SBAS134A – JULY 2004 – REVISED AUGUST 2004
www.ti.com
V_OUTA Sense 48
V_OUTA 47
DAC7634
AGND 46
V_SS 45
V_REFL AB Sense 44
V_REFL AB 43
V_REFH AB 42
V_REFH AB Sense 41
V_OUTB Sense 40
V_OUTB 39
V_OUT
100Ω
2200pF
+V
OPA2350
1000pF
100Ω
1000pF
V_OUT
2200pF
2kΩ
+0.050V
+V
98kΩ
+2.5V
NOTE: V_REFL has been chosen to be 50 mV to allow for current sinking voltage
drops across the 100-Ω resistor and the output stage of the buffer operational amplifier.
Figure 53. Single-Supply Buffered Reference With a Reference Low of 50 mV (1/2 DAC7634)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0000_H 2000_H 4000_H 6000_H 8000_H A000_H C000_H E000_H FFFF_H
Digital Input Code
Figure 54. Integral Linearity and Differential Linearity
Error Curves for Figure 53
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0000_H 2000_H
4000_H 6000_H
8000_H
A000_H C000_H
E000_H FFFF_H
Digital Input Code
Figure 55. Integral Linearity and Differential Linearity
Error Curves for Figure 56
V_OUTA Sense 48
V_OUTA 47
DAC7634
AGND 46
V_SS 45
V_REFL AB Sense 44
V_REFL AB 43
V_REFH AB 42
V_REFH AB Sense 41
V_OUTB Sense 40
V_OUTB 39
V_OUT
100Ω
+V
2200pF
OPA2350
1000pF
100Ω
1000pF
V_OUT
2200pF
+V
+1.25V
+V
+2.5V
Figure 56. Single-Supply Buffered Reference With V_REFL = 1.25 V and V_REFH = 2.5 V (1/2 DAC7634)
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