參數(shù)資料
型號(hào)： DC798B
廠商： Linear Technology
文件頁(yè)數(shù)： 42/42頁(yè)
文件大?。?/td> 0K
描述： BOARD DELTA SIGMA ADC LTC2480
軟件下載： QuikEval System
設(shè)計(jì)資源： DC798B Design File
DC798B Schematic
標(biāo)準(zhǔn)包裝： 1
系列： QuikEval™
ADC 的數(shù)量： 1
位數(shù)： 16
采樣率（每秒）： 7.5
數(shù)據(jù)接口： MICROWIRE?，串行，SPI?
已用 IC / 零件： LTC2480
已供物品： 板
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更多...
LTC2480
2480fd
Typical perForMance characTerisTics
Temperature Sensor
vs Temperature
Temperature Sensor Error
vs Temperature
On-Chip Oscillator Frequency
vs Temperature
TEMPERATURE (°C)
–60
V PTAT
/V
REF
(V)
0.35
0.40
120
2480 G24
0.30
0.20
30
0
90
–30
60
0.25
VCC = 5V
VREF = 1.4V
fO = GND
TEMPERATURE (°C)
–60
TEMPERATURE
ERROR
(°C)
1
3
5
60
2480 G25
–1
–3
0
2
4
–2
–4
–5
–30
0
30
90
120
VCC = 5V
fO = GND
VREF = 1.4V
TEMPERATURE (°C)
–45 –30
300
FREQUENCY
(kHz)
304
310
–15
30 45
2480 G26
302
308
306
15
0
60 75 90
VCC = 4.1V
VREF = 2.5V
VIN = 0V
VIN(CM) = GND
fO = GND
On-Chip Oscillator Frequency
vs VCC
PSRR vs Frequency at VCC
VCC (V)
2.5
300
FREQUENCY
(kHz)
302
304
306
308
310
3.0
3.5
4.0
4.5
2480 G27
5.0
5.5
VREF = 2.5V
VIN = 0V
VIN(CM) = GND
fO = GND
PSRR vs Frequency at VCC
FREQUENCY AT VCC (Hz)
1
0
–20
–40
–60
–80
–100
–120
–140
1k
100k
2480 G28
10
100
10k
1M
REJECTION
(dB)
VCC = 4.1V DC
VREF = 2.5V
IN+ = GND
IN– = GND
fO = GND
TA = 25°C
FREQUENCY AT VCC (Hz)
0
–140
REJECTION
(dB)
–120
–80
–60
–40
0
20
100
140
2480 G29
–100
–20
80
180
220
200
40 60
120
160
VCC = 4.1V DC ±1.4V
VREF = 2.5V
IN+ = GND
IN– = GND
fO = GND
TA = 25°C
PSRR vs Frequency at VCC
Conversion Current
vs Temperature
Sleep Mode Current
vs Temperature
FREQUENCY AT VCC (Hz)
30600
–60
–40
0
30750
2480 G30
–80
–100
30650
30700
30800
–120
–140
–20
REJECTION
(dB)
VCC = 4.1V DC ±0.7V
VREF = 2.5V
IN+ = GND
IN– = GND
fO = GND
TA = 25°C
TEMPERATURE (°C)
–45
100
CONVERSION
CURRENT
(A)
120
160
180
200
–15
15 30
90
2480 G31
140
–30
0
45 60 75
VCC = 5V
VCC = 2.7V
fO = GND
CS = GND
SCK = NC
SDO = NC
SDI = GND
TEMPERATURE (°C)
–45
0
SLEEP
MODE
CURRENT
(A)
0.2
0.6
0.8
1.0
2.0
1.4
–15
15 30
90
2480 G32
0.4
1.6
1.8
1.2
–30
0
45 60 75
VCC = 5V
VCC = 2.7V
fO = GND
CS = VCC
SCK = NC
SDO = NC
SDI = GND
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