DAC7744_14 Datasheet, PDF (19/28 Pages) Texas Instruments – 16-Bit, Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER

LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC A, +25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
1.0
0.5
0
–0.5
–1.0
0000_H 2000_H 4000_H 6000_H 8000_H A000_H C000_H E000_H FFFF_H
Digital Input Code
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC B, +25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
1.0
0.5
0
–0.5
–1.0
0000_H 2000_H 4000_H 6000_H 8000_H A000_H C000_H E000_H FFFF_H
Digital Input Code
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC C, +25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
1.0
0.5
0
–0.5
–1.0
0000_H 2000_H 4000_H 6000_H 8000_H A000_H C000_H E000_H FFFF_H
Digital Input Code
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC D, +25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
1.0
0.5
0
–0.5
–1.0
0000_H 2000_H 4000_H 6000_H 8000_H A000_H C000_H E000_H FFFF_H
Digital Input Code
FIGURE 7. Integral Linearity and Differential Linearity Error Curves for Figure 8.
NC 48
NC 47
NC 46
NC 45
V_OUTA Sense 44
DAC7744
V_OUTA 43
V_REFL AB Sense 42
V_REFL AB 41
V_REFH AB 40
V_REFH AB Sense 39
V_OUTB Sense 38
V_OUTB 37
V_OUT
100Ω
1000pF
100Ω
1000pF
2200pF
2200pF
V_OUT
+V
OPA2234
–5V
–V
+V
+5V
–V
FIGURE 8. Dual-Supply Buffered Referenced with V_REFL = –5V and V_REFH = +5V (1/2 DAC7744).
®
19
DAC7744