ANALOG INPUT AND REFERENCE The l denotes the sp" />
參數(shù)資料
型號: DC951A
廠商: Linear Technology
文件頁數(shù): 34/40頁
文件大小: 0K
描述: BOARD DELTA SIGMA ADC LTC2481
軟件下載: QuikEval System
設(shè)計資源: DC951A Design File
DC951A Schematic
標準包裝: 1
系列: Easy Drive™, QuikEval™
ADC 的數(shù)量: 1
位數(shù): 16
采樣率(每秒): 7.5
數(shù)據(jù)接口: I²C,串行,SPI?
工作溫度: 0°C ~ 70°C
已用 IC / 零件: LTC2481
已供物品:
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LTC2481IDD#PBF-ND - IC ADC 16BIT I2C 10-DFN
LTC2481CDD#PBF-ND - IC ADC 16BIT I2C 10-DFN
LTC2481
4
2481fc
ANALOG INPUT AND REFERENCE The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CS (IN)INSampling Capacitance
11
pF
CS (VREF)VREF Sampling Capacitance
11
pF
IDC_LEAK (IN+)IN+ DC Leakage Current
Sleep Mode, IN+ = GND
l
–10
1
10
nA
IDC_LEAK (IN)INDC Leakage Current
Sleep Mode, IN= GND
l
–10
1
10
nA
IDC_LEAK (VREF)REF+, REFDC Leakage Current
Sleep Mode, VREF = VCC
l
–100
1
100
nA
I2C DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specications which apply over
the full operating temperature range, otherwise specications are at TA = 25°C. (Notes 3, 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
l
0.7VCC
V
VIL
Low Level Input Voltage
l
0.3VCC
V
VIL(CA1)
Low Level Input Voltage for Address Pin
l
0.05VCC
V
VIH(CA0/f0,CA1)
High Level Input Voltage for Address Pins
l
0.95VCC
V
RINH
Resistance from CA0/f0, CA1 to VCC to Set
Chip Address Bit to 1
l
10
RINL
Resistance from CA1 to GND to Set Chip
Address Bit to 0
l
10
RINF
Resistance from CA0/f0, CA1 to VCC or
GND to Set Chip Address Bit to Float
l
2
II
Digital Input Current
l
–10
10
μA
VHYS
Hysteresis of Schmitt Trigger Inputs
(Note 5)
0.05VCC
V
VOL
Low Level Output Voltage SDA
I = 3mA
l
0.4
V
tOF
Output Fall Time from VIHMIN to VILMAX
Bus Load CB 10pF to 400pF (Note 14)
l
20+0.1CB
250
ns
tSP
Input Spike Suppression
l
50
ns
IIN
Input Leakage
0.1VCC ≤ VIN ≤ VCC
l
1μA
CI
Capacitance for Each I/O Pin
l
10
pF
CB
Capacitance Load for Each Bus Line
l
400
pF
CCAX
External Capacitive Load On-Chip Address
Pins (CA0/f0,CA1) for Valid Float
l
10
pF
VIH(EXT,OSC)
High Level CA0/f0 External Oscillator
2.7V ≤ VCC < 5.5V
l
VCC – 0.5V
V
VIL(EXT,OSC)
Low Level CA0/f0 External Oscillator
2.7V ≤ VCC < 5.5V
l
0.5
V
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
Supply Voltage
l
2.7
5.5
V
ICC
Supply Current
Conversion Mode (Note 11)
Sleep Mode (Note 11)
H-Grade
l
160
1
250
2
20
μA
POWER REQUIREMENTS The l denotes the specications which apply over the full operating temperature
range, otherwise specications are at TA = 25°C. (Note 3)
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