AD7804_15 Datasheet, PDF (21/28 Pages) Analog Devices – 3.3 V to 5 V Quad/Octal 10-Bit DACs

Typical Performance Characteristics–AD7804/AD7805/AD7808/AD7809
0.150000
0.125000
0.100000
MAIN DAC = ZERO SCALE
SUB DAC = MID SCALE
V_BIAS = V_DD/2
T_A = +25؇C
V_DD = 5.5V
0.075000
0.050000
V_DD = 3V
0.025000
0.000000
–0.5
SOURCE CURRENT SINK CURRENT
–0.4 –0.3 –0.2 –0.1 0.0 0.1 0.2 0.3
CURRENT – mA
0.4 0.5
Figure 29. Sink and Source Current with Zero Scale
Loaded to DAC. V_DD = 5 V and V_DD = 3 V
2.0
AV_DD = DV_DD = 5V
1.5
V_BIAS = V_DD/2
T_A = +25؇C
1.0 _{SUB DAC LOADED WITH}
1/2 SCALE
0.5
0.0
–0.5
–1.0
–1.5
–2.0
0
100 200 300 400 500 600 700 800 900 1023
DAC CODE
Figure 32. Integral Linearity with 5 V Operation
5.200000
5.180000
5.160000
V_DD = 5.5V
MAIN DAC = FULL SCALE
SUB DAC = MID SCALE
V_BIAS = V_DD/2
T_A = +25؇C
R_L =
5.140000
R_L = 2k⍀
5.120000
SOURCE CURRENT SINK CURRENT
5.100000
–6.0
–4.0
–2.0
0.0
2.0
4.0
6.0
CURRENT – mA
Figure 30. Sink and Source Current at Full Scale with
V_DD = 5 V
2.0
AV_DD = DV_DD = 3V
1.5
V_BIAS = V_DD/2
T_A = +25؇C
1.0 _{SUB DAC LOADED WITH}
1/2 SCALE
0.5
0.0
–0.5
–1.0
–1.5
–2.0
0
100 200 300 400 500 600 700 800 900 1023
DAC CODE
Figure 33. Integral Linearity with 3 V Operation
2.850000
2.830000
2.810000
V_DD = 3V
MAIN DAC = FULL SCALE
SUB DAC = MID SCALE
V_BIAS = V_DD/2
T_A = +25؇C
R_L =
2.790000
R_L = 2k⍀
2.770000
SOURCE CURRENT SINK CURRENT
2.750000
–6.0
–4.0
–2.0
0.0
2.0
4.0
6.0
CURRENT – mA
Figure 31. Sink and Source Current at Full Scale with
V_DD = 3 V
1.225
1.224
1.223
1.222
V_DD = 3V
R_L = 2k⍀||100pF
CODE CHANGE
011111 1111 TO
100000 0000
T_A = +25؇C
1.221
1.220
1.219
1.218
1.217
1.216
0
20 40 60 80 100 120 140 160 180 200
ns
Figure 34. Digital-to-Analog Glitch Impulse
REV. A
–21–