PSRR vs Frequency at VCC Conversion Cur" />
參數(shù)資料
型號(hào): LTC2431IMS#TRPBF
廠商: Linear Technology
文件頁(yè)數(shù): 39/40頁(yè)
文件大?。?/td> 0K
描述: IC ADC 20BIT DIFFINPUT/REF10MSOP
標(biāo)準(zhǔn)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(gè)差分,雙極
配用: DC586A-ND - BOARD DELTA SIGMA ADC LTC2431
LTC2430/LTC2431
8
24301f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
PSRR vs Frequency at VCC
Conversion Current vs Temperature
Full-Scale Error vs VREF
VREF (V)
0
FULL-SCALE
ERROR
(ppm
OF
V
REF
)
20
15
10
5
0
–5
–10
–15
–20
4
24301 G20
123
5
3.5
0.5
1.5
2.5
4.5
+FS ERROR
–FS ERROR
VCC = 5V
REF= GND
FO = GND
VINCM = 0.5VREF
TA = 25°C
Full-Scale Error vs VCC
VCC (V)
2.7
–5
FULL-SCALE
ERROR
(ppm
OF
V
REF
)
–4
–2
–1
0
5
2
3.5
4.3
4.7
24301 G21
–3
3
4
1
3.1
3.9
5.1
5.5
+FS ERROR
–FS ERROR
VREF = 2.5V
REF= GND
FO = GND
VINCM = 0.5VREF
TA = 25°C
FREQUENCY AT VCC (Hz)
0
–140
REJECTION
(dB)
–120
–80
–60
–40
0
20
100
140
24301 G22
–100
–20
80
180
220
200
40 60
120
160
VCC = 4.1VDC ±1.4V
REF+ = 2.5V
REF= GND
IN+ = GND
IN= GND
FO = GND
TA = 25°C
PSRR vs Frequency at VCC
FREQUENCY AT VCC (Hz)
15170
–60
–40
0
15320
24301 G24
–80
–100
15220
15270
15370
–120
–140
–20
REJECTION
(dB)
VCC = 4.1VDC ±0.7V
REF+ = 2.5V
REF= GND
IN+ = GND
IN= GND
FO = GND
TA = 25°C
TEMPERATURE (
°C)
–45
CONVERSION
CURRENT
(
A)
200
210
220
75
24301 G25
190
180
160
–15
15
45
–30
90
030
60
170
240
230
VCC = 5.5V
VCC = 2.7V
VCC = 5V
VCC = 3V
FO = GND
CS = GND
SCK = NC
SDO = NC
Conversion Current
vs Output Data Rate
OUTPUT DATA RATE (READINGS/SEC)
0
100
SUPPLY
CURRENT
(
A)
200
400
500
600
60 70 80 90
1000
24301 G26
300
10 20 30 40 50
100
700
800
900
VCC = 5V
VCC = 3V
VREF = VCC
IN+ = GND
IN= GND
SCK = NC
SDO = NC
SDI = GND
CS = GND
FO = EXT OSC
TA = 25°C
Sleep Mode Current
vs Temperature
TEMPERATURE (
°C)
–45
0
SLEEP
MODE
CURRENT
(
A)
1
3
4
5
–15
15
30
90
24301 G27
2
–30
0
45
60
75
6
VCC = 5.5V
VCC = 2.7V
VCC = 5V
VCC = 3V
FO = GND
CS = VCC
SCK = NC
SDO = NC
FREQUENCY AT VCC (Hz)
1
0
–20
–40
–60
–80
–100
–120
–140
1k
100k
24301 G23
10
100
10k
1M
REJECTION
(dB)
VCC = 4.1VDC
REF+ = 2.5V
REF= GND
IN+ = GND
IN= GND
FO = GND
TA = 25°C
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