参数资料
型号: AD7245AQ
厂商: Analog Devices Inc
文件页数: 14/16页
文件大小: 0K
描述: IC DAC 12BIT W/REF 24-CDIP
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 15
系列: DACPORT®
设置时间: 7µs
位数: 12
数据接口: 并联
转换器数目: 1
电压电源: 双 ±
功率耗散(最大): 210mW
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 24-CDIP(0.300",7.62mm)
供应商设备封装: 24-CDIP
包装: 管件
输出数目和类型: 1 电压,单极;1 电压,双极
采样率(每秒): *
AD7245A/AD7248A
REV. B
–7–
Typical Performance Characteristics–
TEMPERATURE – C
5
4
0
–55
70
PO
WER
SUPPL
Y
CURRENT
mA
–25
0
3
85
125
6
7
VDD = +15V
IDD (VSS = –15V, VIN = V INL OR V INH)
IDD (VSS = –15V, VIN = 0V OR V DD)
IDD (VSS = 0V,V IN = 0V OR VDD)
ISS (VSS = –15V)
2
1
25
TPC 1. Power Supply Current vs. Temperature
FREQUENCY – Hz
100
50
10
50
2k
100
nV
Hz
200
500
1k
20
20k
5k
10k
50k
200
500
VDD = 15V
VSS = 0V
TA = 25 C
OUTPUT WITH
ALL 0s ON DAC
REFERENCE (DECOUPLED*)
REFERENCE (NO DECOUPLING)
*REFERENCE DECOUPLING COMPONENTS AS PER FIGURE 8
TPC 2. Noise Spectral Density vs. Frequency
100
90
10
0%
1mV
1 s
2V
TPC 3. Positive-Going Settling Time
(VDD = +15 V, VSS = –15 V)
TEMPERATURE – C
5.005
5.010
–55
REFERENCE
V
O
L
T
A
GE
Vo
lt
s
–25
0
25
70
85
125
5.000
4.995
TPC 4. Reference Voltage vs. Temperature
2k
200
10k
FREQUENCY – Hz
60
40
0
50
100
PSRR
dB
1k
20
20k
100k
80
*POWER SUPPLY DECOUPLING CAPACITORS ARE 10 F AND 0.1 F
OUTPUT WITH ALL
0s ON DAC
OUTPUT WITH ALL
1s ON DAC
VDD = 15V WITH
100mV p-p SIGNAL
DECOUPLING*
NO
DECOUPLING
NO DECOUPLING
TPC 5. Power Supply Rejection Ration vs. Frequency
100
90
10
0%
1mV
1 s
2V
TPC 6. Negative Going Settling Time
(VDD = +15 V, VSS = –15 V)
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