AMC7823 Datasheet, PDF (16/48 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL CIRCUIT

AMC7823
SLAS453A – APRIL 2005 – REVISED OCTOBER 2005
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TYPICAL CHARACTERISTICS: DIGITAL-TO-ANALOG CONVERTER (DAC) (continued)
At +25°C, AV_DD = DV_DD = 5V, unless otherwise noted.
NORMALIZED OFFSET ERROR
vs TEMPERATURE
2.0
External 2.5V Reference
1.5 AV_DD = 5V
1.0
0.5
Gain = +1
0
−0.5
−1.0
Gain = +2
−1.5
−2.0
−60 −40 −20 0
20 40 60 80 100
Temperature (_C)
Figure 27.
NORMALIZED GAIN ERROR
vs TEMPERATURE
0.10
External 2.5V Reference
AV_DD = 5V
0.05
0
−0.05
−0.10
−60 −40 −20 0
20 40 60 80 100
Temperature (_ C)
Figure 28.
V_OUT vs
SOURCING AND SINKING CURRENT
6.0
V_OUT vs
SOURCING AND SINKING CURRENT
3.0
5.0
2.5
4.0
Sourcing Current
3.0
2.0
Sourcing Current
1.5
2.0
1.0
Sinking Current
AV_DD = 5V
V_REF = 2.5V
Gain = +2
0
0 2 4 6 8 10 12 14 16 18 20
Sourcing or Sinking Current (mA)
Figure 29.
1.0
Sinking Current
0.5
AV_DD = 2.7V
V_REF = 1.25V
Gain = +2
0
0 2 4 6 8 10 12 14 16 18 20
Sourcing or Sinking Current (mA)
Figure 30.
DAC SETTLING TIME
(GAIN = +2)
Input
Code 3932
C_L = 10pF
R_L= 10kΩ
V_REF = 2.5V
Code 256
Input
DAC SETTLING TIME
(GAIN = +1)
Code 4095
C_L = 10pF
R_L= 10kΩ
V_REF = 2.5V
Code 512
Settling
Detail
Settling
Detail
Time (1µs/div)
Figure 31.
16
Time (1µs/div)
Figure 32.