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參數(shù)資料
| 型號： | AD7453BRTZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 2/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT W/DIFF INP SOT23-8 |
| 設(shè)計(jì)資源： | Measuring -48 V High-Side Current Using AD629, AD8603, AD780, and AD7453 (CN0100) |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 555k |
| 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）： | 7.25mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-8 |
| 供應(yīng)商設(shè)備封裝： | SOT-23-8 |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 1 個偽差分，雙極 |
AD7453
Rev. B | Page 9 of 20
AD7453–TYPICAL PERFORMANCE CHARACTERISTICS
Default Conditions: TA = 25°C, fS = 555 kSPS, fSCLK = 10 MHz, VDD = 2.7 V to 5.25 V, VREF = 2.5 V, unless otherwise noted.
FREQUENCY (kHz)
55
10
S
INAD
(dB)
100
277
60
65
70
75
VDD = 5.25V
VDD = 2.7V
VDD = 3.6V
VDD = 4.75V
03155-A
-005
Figure 5. SINAD vs. Analog Input Frequency for Various Supply Voltages
0
–20
–40
–80
–60
–120
–100
–140
03155-A
-006
SUPPLY RIPPLE FREQUENCY (kHz)
0
100
200
300
400
500
P
S
RR
(
d
B
)
900
1000
VDD= 5V
VDD = 3V
600
700
800
100mV p-p SINE WAVE ON VDD
NO DECOUPLING ON VDD
Figure 6. PSRR vs. Supply Ripple Frequency without Supply Decoupling
FREQUENCY (kHz)
0
100
200
S
NR
(dB)
–100
–140
277
–20
0
–120
–40
–60
–80
8192 POINT FFT
fSAMPLE = 555kSPS
fIN = 100kSPS
SINAD = 71.7dB
THD = –82dB
SFDR = –83dB
03155-A
-007
Figure 7. Dynamic Performance for VDD = 5 V
CODE
DN
L
E
R
RO
R
(
L
S
B
)
1.0
0.8
0.6
0.2
0.4
–0.2
–0.4
–0.6
–0.8
0
–1.0
0
1024
3072
2048
4096
03155-A
-008
Figure 8. Typical DNL for the AD7453 for VDD = 5 V
CODE
IN
L
ER
R
O
R
(L
SB
)
1.0
0.8
0.6
0.2
0.4
–0.2
–0.4
–0.6
–0.8
0
–1.0
0
1024
3072
2048
4096
03155-A
-009
Figure 9. Typical INL for the AD7453 for VDD = 5 V
CODES
0
2046
2047
2048
2049
2050
2051
27 CODES
24 CODES
9949
CODES
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
03155-A
-010
Figure 10. Histogram of 10,000 Conversions of a DC Input
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