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參數(shù)資料
型號: LTC2431IMS#TRPBF
廠商: Linear Technology
文件頁數(shù): 23/40頁
文件大?。?/td> 0K
描述: IC ADC 20BIT DIFFINPUT/REF10MSOP
標準包裝: 2,500
位數(shù): 20
采樣率(每秒): 7.5
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 1mW
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: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,雙極
配用: DC586A-ND - BOARD DELTA SIGMA ADC LTC2431
LTC2430/LTC2431
3
24301f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN+
Absolute/Common Mode IN+ Voltage
q
GND – 0.3V
VCC + 0.3V
V
IN
Absolute/Common Mode INVoltage
q
GND – 0.3V
VCC + 0.3V
V
VIN
Input Differential Voltage Range
q
–VREF/2
VREF/2
V
(IN+ – IN)
REF+
Absolute/Common Mode REF+ Voltage
q
0.1
VCC
V
REF
Absolute/Common Mode REFVoltage
q
GND
VCC – 0.1V
V
VREF
Reference Differential Voltage Range
q
0.1
VCC
V
(REF+ – REF)
CS (IN+)IN+ Sampling Capacitance
1.5
pF
CS (IN)INSampling Capacitance
1.5
pF
CS (REF+)REF+ Sampling Capacitance
1.5
pF
CS (REF)REFSampling Capacitance
1.5
pF
IDC_LEAK (IN
+)IN+ DC Leakage Current
CS = VCC, IN
+ = GND
q
–10
1
10
nA
IDC_LEAK (IN
)INDC Leakage Current
CS = VCC, IN
= VCC
q
–10
1
10
nA
IDC_LEAK (REF
+)REF+ DC Leakage Current
CS = VCC, REF
+ = VCC
q
–10
1
10
nA
IDC_LEAK (REF)REFDC Leakage Current
CS = VCC, REF= GND
q
–10
1
10
nA
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Common Mode Rejection DC
2.5V
≤ REF+ ≤ VCC, REF= GND,
q
110
120
dB
GND
≤ IN= IN+ ≤ 5V (Note 5)
Input Common Mode Rejection
2.5V
≤ REF+ ≤ VCC, REF= GND,
q
140
dB
60Hz
±2%
GND
≤ IN= IN+ ≤ 5V, (Notes 5, 7)
Input Common Mode Rejection
2.5V
≤ REF+ ≤ VCC, REF= GND,
q
140
dB
50Hz
±2%
GND
≤ IN= IN+ ≤ 5V, (Notes 5, 8)
Input Normal Mode Rejection
(Notes 5, 7)
q
110
140
dB
60Hz
±2%
Input Normal Mode Rejection
(Notes 5, 8)
q
110
140
dB
50Hz
±2%
Reference Common Mode
2.5V
≤ REF+ ≤ VCC, GND ≤ REF≤ 2.5V,
q
130
140
dB
Rejection DC
VREF = 2.5V, IN
= IN+ = GND (Note 5)
Power Supply Rejection, DC
REF+ = 2.5V, REF= GND, IN= IN+ = GND
110
dB
Power Supply Rejection, 60Hz
±2% REF+ = 2.5V, REF= GND, IN= IN+ = GND, (Note 7)
120
dB
Power Supply Rejection, 50Hz
±2% REF+ = 2.5V, REF= GND, IN= IN+ = GND, (Note 8)
120
dB
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4)
CO VERTER CHARACTERISTICS
U
A ALOG I PUT A D REFERE CE
U
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