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參數(shù)資料
型號: DC939A
廠商: Linear Technology
文件頁數(shù): 39/42頁
文件大?。?/td> 0K
描述: BOARD DELTA SIGMA ADC LTC2484
軟件下載: QuikEval System
設計資源: DC939A Design File
DC939A Schematic
標準包裝: 1
系列: Easy Drive™, QuikEval™
ADC 的數(shù)量: 1
位數(shù): 24
采樣率(每秒): 6.8
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
工作溫度: 0°C ~ 70°C
已用 IC / 零件: LTC2484
已供物品:
相關產品: LTC2484CDD#TRPBF-ND - IC ADC 24BIT 10-DFN
LTC2484IDD#TRPBF-ND - IC ADC 24BIT 10-DFN
LTC2484IDD#PBF-ND - IC ADC 24BIT 10-DFN
LTC2484CDD#PBF-ND - IC ADC 24BIT 10-DFN
LTC2484
6
2484fd
TYPICAL PERFORMANCE CHARACTERISTICS
Integral Nonlinearity
(VCC = 5V, VREF = 5V)
Integral Nonlinearity
(VCC = 5V, VREF = 2.5V)
Integral Nonlinearity
(VCC = 2.7V, VREF = 2.5V)
Total Unadjusted Error
(VCC = 5V, VREF = 5V)
Total Unadjusted Error
(VCC = 5V, VREF = 2.5V)
Total Unadjusted Error
(VCC = 2.7V, VREF = 2.5V)
Noise Histogram (6.8sps)
Noise Histogram (7.5sps)
Long-Term ADC Readings
INPUT VOLTAGE (V)
–3
INL
(ppm
OF
V
REF
)
–1
1
3
–2
0
2
–1.5
–0.5
0.5
1.5
2484 G01
2.5
–2
–2.5
–1
0
1
2
VCC = 5V
VREF = 5V
VIN(CM) = 2.5V
fO = GND
85°C
–45°C
25°C
INPUT VOLTAGE (V)
–3
INL
(ppm
OF
V
REF
)
–1
1
3
–2
0
2
–0.75
–0.25
0.25
0.75
2484 G02
1.25
–1.25
VCC = 5V
VREF = 2.5V
VIN(CM) = 1.25V
fO = GND
–45°C, 25°C, 90°C
INPUT VOLTAGE (V)
–3
INL
(ppm
OF
V
REF
)
–1
1
3
–2
0
2
–0.75
–0.25
0.25
0.75
2484 G03
1.25
–1.25
VCC = 2.7V
VREF = 2.5V
VIN(CM) = 1.25V
fO = GND
–45°C, 25°C, 90°C
INPUT VOLTAGE (V)
–12
TUE
(ppm
OF
V
REF
)
–4
4
12
–8
0
8
–1.5
–0.5
0.5
1.5
2484 G04
2.5
–2
–2.5
–1
0
1
2
VCC = 5V
VREF = 5V
VIN(CM) = 2.5V
fO = GND
85°C
25°C
–45°C
INPUT VOLTAGE (V)
–12
TUE
(ppm
OF
V
REF
)
–4
4
12
–8
0
8
–0.75
–0.25
0.25
0.75
2484 G05
1.25
–1.25
VCC = 5V
VREF = 5V
VIN(CM) = 1.25V
fO = GND
85°C
25°C
–45°C
INPUT VOLTAGE (V)
–12
TUE
(ppm
OF
V
REF
)
–4
4
12
–8
0
8
–0.75
–0.25
0.25
0.75
2484 G06
1.25
–1.25
VCC = 2.7V
VREF = 2.5V
VIN(CM) = 1.25V
fO = GND
85°C
25°C
–45°C
OUTPUT READING (μV)
–3
NUMBER
OF
READINGS
(%)
8
10
12
0.6
2484 G07
6
4
–1.8
–0.6
–2.4
1.2
–1.2
0
1.8
2
0
14
10,000 CONSECUTIVE
READINGS
VCC = 5V
VREF = 5V
VIN = 0V
TA = 25°C
RMS = 0.60μV
AVERAGE = –0.69μV
OUTPUT READING (μV)
–3
NUMBER
OF
READINGS
(%)
8
10
12
0.6
2484 G08
6
4
–1.8
–0.6
–2.4
1.2
–1.2
0
1.8
2
0
14
10,000 CONSECUTIVE
READINGS
VCC = 2.7V
VREF = 2.5V
VIN = 0V
TA = 25°C
RMS = 0.59μV
AVERAGE = –0.19μV
TIME (HOURS)
0
–5
ADC
READING
(μV)
–3
–1
1
10
20
30
40
2484 G09
50
3
5
–4
–2
0
2
4
60
VCC = 5V, VREF = 5V, VIN = 0V, VIN(CM) = 2.5V
TA = 25°C, RMS NOISE = 0.60μV
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