Sinc
參數(shù)資料
型號: AD7194BCPZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 45/57頁
文件大?。?/td> 0K
描述: IC ADC 24BIT SPI 4.8KHZ 32LFCSP
標(biāo)準(zhǔn)包裝: 1,500
位數(shù): 24
采樣率(每秒): 4.8k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 32-WFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-WQ(5x5)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 8 個差分,單極;8 個差分,雙極;16 個偽差分,單極;16 偽差分,雙極
AD7194
Data Sheet
Rev. A | Page 4 of 56
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments1
Normal Mode Rejection2
Sinc4 Filter
Internal Clock
@ 50 Hz, 60 Hz
100
dB
10 Hz output data rate, 50 Hz ± 1 Hz,
60 Hz ± 1 Hz
74
dB
50 Hz output data rate, REJ606 = 1,
50 Hz ± 1 Hz, 60 Hz ± 1 Hz
@ 50 Hz
96
dB
50 Hz output data rate, 50 Hz ± 1 Hz
@ 60 Hz
97
dB
60 Hz output data rate, 60 Hz ± 1 Hz
External Clock
@ 50 Hz, 60 Hz
120
dB
10 Hz output data rate, 50 Hz ± 1 Hz,
60 Hz ± 1 Hz
82
dB
50 Hz output data rate, REJ606 = 1,
50 Hz ± 1 Hz, 60 Hz ± 1 Hz
@ 50 Hz
120
dB
50 Hz output data rate, 50 Hz ± 1 Hz
@ 60 Hz
120
dB
60 Hz output data rate, 60 Hz ± 1 Hz
Sinc3 Filter
Internal Clock
@ 50 Hz, 60 Hz
75
dB
10 Hz output data rate, 50 Hz ± 1 Hz,
60 Hz ± 1 Hz
60
dB
50 Hz output data rate, REJ606 = 1,
50 Hz ± 1 Hz, 60 Hz ± 1 Hz
@ 50 Hz
70
dB
50 Hz output data rate, 50 Hz ± 1 Hz
@ 60 Hz
70
dB
60 Hz output data rate, 60 Hz ± 1 Hz
External Clock
@ 50 Hz, 60 Hz
100
dB
10 Hz output data rate, 50 Hz ± 1 Hz,
60 Hz ± 1 Hz
@ 50 Hz
67
dB
50 Hz output data rate, REJ606 = 1,
50 Hz ± 1 Hz, 60 Hz ± 1 Hz
@ 50 Hz
95
dB
50 Hz output data rate, 50 Hz ± 1 Hz
@ 60 Hz
95
dB
60 Hz output data rate, 60 Hz ± 1 Hz
Fast Settling
Internal Clock
@ 50 Hz
26
dB
FS[9:0]3 = 6, average by 16, 50 Hz ± 0.5 Hz
@ 60 Hz
26
dB
FS[9:0]3 = 5, average by 16, 60 Hz ± 0.5 Hz
External Clock
@ 50 Hz
40
dB
FS[9:0]3 = 6, average by 16, 50 Hz ± 0.5 Hz
@ 60 Hz
40
dB
FS[9:0]3 = 5, average by 16, 60 Hz ± 0.5 Hz
ANALOG INPUTS
Differential Input
Voltage Ranges
±VREF/gain
V
VREF = REFINx(+) REFINx(),
gain = 1 to 128
(AVDD 1.25 V)/gain
+(AVDD 1.25 V)/gain
V
Gain > 1
Absolute AIN Voltage
Limits2
Unbuffered Mode
AGND 0.05
AVDD + 0.05
V
Buffered Mode
AGND + 0.25
AVDD 0.25
V
Analog Input Current
Buffered Mode
Input Current2
2
+2
nA
Gain = 1
3
+3
nA
Gain > 1
Input Current Drift
±5
pA/°C
Unbuffered Mode
Input Current
±3.5
A/V
Gain = 1, input current varies with input
voltage
±1
A/V
Gain > 1
Input Current Drift
±0.05
nA/V/°C
External clock
±1.6
nA/V/°C
Internal clock
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