V
參數(shù)資料
型號: AD7945BRZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 4/16頁
文件大?。?/td> 0K
描述: IC DAC 12BIT MULT PARALL 20SOIC
產(chǎn)品培訓模塊: Data Converter Fundamentals
DAC Architectures
標準包裝: 1,000
設置時間: 600ns
位數(shù): 12
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
功率耗散(最大): 25µW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 20-SOIC W
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 1 電流,單極;1 電流,雙極
采樣率(每秒): 1.7M
AD7943/AD7945/AD7948
REV. B
–12–
INPUT CODE
1.00
0.50
–1.00
0
4095
1024
LINEARITY
ERROR
LSB
S
2048
3072
0.00
–0.50
VDD = +3.3V
VREF = 0V
VBIAS = 1.23V
OP AMP = AD820
TA = +25 C
Figure 9. All Codes Linearity in Biased Mode
(VDD = +3.3 V)
FREQUERCY – Hz
–50
–55
–100
100
100k
1k
THD
dBs
10k
–80
–85
–90
–95
–70
–75
–60
–65
VDD = +5V
TA = +25 C
VIN = 6V rms
OP AMP = AD711
Figure 10. Total Harmonic Distortion vs. Frequency
10
0%
100
90
200ns
5V
200ns
50mV
VDD = +5V
TA = +25 C
VREF = 0V
OP AMP = AD711
AD711 OUTPUT
Figure 11. Digital-to-Analog Glitch Impulse
FREQUENCY – Hz
0
–10
–100
1k
10M
10k
100k
1M
–40
–70
–80
–90
–20
–30
–60
–50
VDD = +5V
TA = +25 C
VIN = 20V p-p
OP AMP = AD711
DAC LOADED WITH ALL 0S
DAC LOADED WITH ALL 1S
Figure 12. Multiplying Frequency Response vs.
Digital Code
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