TA = 25" />
參數(shù)資料
型號(hào): AD7278BUJZ-REEL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 6/29頁(yè)
文件大?。?/td> 0K
描述: IC ADC 8BIT 3MSPS HS LP TSOT23-6
標(biāo)準(zhǔn)包裝: 3,000
位數(shù): 8
采樣率(每秒): 3M
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 19.8mW
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-6 細(xì)型,TSOT-23-6
供應(yīng)商設(shè)備封裝: TSOT-23-6
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個(gè)單端,單極
AD7276/AD7277/AD7278
Rev. C | Page 13 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, unless otherwise noted.
04
90
3-
0
09
FREQUENCY (kHz)
SN
R
(
d
B
)
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400
–120
–20
–100
–80
–60
–40
1500
16,384 POINT FFT
FSAMPLE =3MSPS
FIN =1MHz
SINAD = 71.2dB
THD = –80.9dB
SFDR = –82.4dB
VDD =3V
Figure 10. AD7276 Dynamic Performance at 3 MSPS, Input Tone = 1 MHz
04
90
3-
01
0
FREQUENCY (kHz)
SN
R
(
d
B
)
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400
–110
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
1500
16,384 POINT FFT
FSAMPLE = 3MSPS
FIN =1MHz
SINAD = 61.6dB
THD = –80.2dB
SFDR = –83.4dB
VDD =3V
Figure 11. AD7277 Dynamic Performance at 3 MSPS, Input Tone = 1 MHz
04
90
3-
01
2
INPUT FREQUENCY (kHz)
S
INAD
(
d
B)
100
67.5
72.5
1500
1000
72.0
71.5
71.0
70.5
70.0
69.5
69.0
68.5
68.0
VDD = 2.35V
VDD =3V
VDD =3.6V
Figure 12. AD7276 SINAD vs. Analog Input Frequency at 3 MSPS
for Various Supply Voltages, SCLK Frequency = 48 MHz
04
90
3-
01
3
INPUT FREQUENCY (kHz)
SN
R
(
d
B
)
100
69.0
73.0
1500
1000
VDD = 2.35V
72.5
72.0
71.5
71.0
70.5
70.0
69.5
VDD =3.6V
VDD =3V
Figure 13. AD7276 SNR vs. Analog Input Frequency at 3 MSPS
for Various Supply Voltages, SCLK Frequency = 48 MHz
04
90
3-
01
6
CODE
NUM
BE
R
O
F
O
C
CURRE
NCE
S
2046
0
30,000
25,000
20,000
15,000
10,000
5,000
2050
2049
2048
2047
30,000
CODES
Figure 14. Histogram of Codes for 30,000 Samples
04
90
3-
01
7
INPUT FREQUENCY (kHz)
T
HD
(
d
B)
100
–90
–72
1500
1000
–74
–76
–78
–80
–82
–84
–86
–88
VDD =3.6V
VDD = 2.35V
VDD =3V
Figure 15. THD vs. Analog Input Frequency at 3 MSPS
for Various Supply Voltages, SCLK Frequency = 48 MHz
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