参数资料
型号: AD7568BP
厂商: Analog Devices Inc
文件页数: 11/14页
文件大小: 0K
描述: IC DAC 12BIT LC2MOS OCTAL 44PLCC
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 1
设置时间: 500ns
位数: 12
数据接口: 串行
转换器数目: 8
电压电源: 单电源
功率耗散(最大): 17.5mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 管件
输出数目和类型: 16 电流,单极;16 电流,双极
采样率(每秒): 2M
AD7568
–6–
5.5
0.0
5.0
1.5
0.5
1.0
0.0
3.0
2.0
2.5
3.5
4.0
4.5
5.0
4.0
3.0
2.0
DIGITAL INPUT – Volts
I
mA
DD
V
= +5V
T = +25
°C
DD
A
Figure 3. Supply Current vs. Logic
Input Voltage
1.0
0.0
10.0
0.3
0.1
4.0
0.2
2.0
0.6
0.4
0.5
0.7
0.8
0.9
8.0
6.0
V
= +5V
T = +25
°C
DD
A
V
– Volts
REF
INL
LSBs
Figure 6. Integral Nonlinearity Error
vs. VREF
10
90
100
0%
50mV
5V
200ns
DIGITAL INPUTS
AD713 OUTPUT
V
= +5V
T = +25
°C
V
= +10V
OP AMP = AD713
DD
A
REF
Figure 9. Digital-to-Analog Glitch
Impulse
–Typical Performance Curves
2
0
85
–15
–40
1
60
10
35
TEMPERATURE –
°C
I
mA
DD
V
= +5V
DD
V
= +2.4V
IH
V
= +4V
IH
Figure 4. Supply Current vs.
Temperature
1.0
0.0
4095
0.6
0.2
2048
0.4
0
0.8
DIGITAL CODE
INL
SPREAD
LSBs
V
= +10V
V
= +5V
T = +25
°C
REF
DD
A
Figure 7. Typical DAC to DAC
Linearity Matching
0
–100
–70
–90
–80
–40
–60
–50
–30
–20
–10
103
10 4
105
106
FREQUENCY – Hz
V
B/V
C
dBs
OUT
V
C = 20V pk-pk SINE WAVE
ALL OTHER REFERENCE INPUTS GROUNDED
DAC C LOADED WITH ALL 1s
ALL OTHER DACs LOADED WITH ALL 0s
REF
Figure 10. Channel-to-Channel
Isolation (1 DAC to 1 DAC)
1.0
0.0
10.0
0.3
0.1
4.0
0.2
2.0
0.6
0.4
0.5
0.7
0.8
0.9
8.0
6.0
V
= +5V
T = +25
°C
DD
A
V
– Volts
REF
DNL
LSBs
Figure 5. Differential Nonlinearity
Error vs. VREF
–50
–100
–85
–95
–90
–70
–80
–75
–65
–60
–55
102
103
10 4
105
FREQUENCY – Hz
THD
dBs
V
= +5V
T = +25
°C
V
= 6V rms
OP AMP = AD713
DD
A
IN
Figure 8. Total Harmonic Distortion
vs. Frequency
0
–100
–70
–90
–80
–40
–60
–50
–30
–20
–10
103
10 4
105
106
FREQUENCY – Hz
V
B/V
C
dBs
OUT
V
B GROUNDED
ALL OTHER REFERENCE INPUTS =
20V pk-pk SINE WAVE
DAC B LOADED WITH ALL 0s
ALL OTHER DACs LOADED WITH ALL 1s
REF
Figure 11. Channel-to-Channel
Isolation (1 DAC to All Other DACs)
REV. C
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