ANALOG INPUT AND REFERENCE The l denotes the sp" />
參數(shù)資料
型號: LTC2485CDD#TRPBF
廠商: Linear Technology
文件頁數(shù): 34/40頁
文件大?。?/td> 0K
描述: IC ADC 24BIT I2C 10-DFN
標準包裝: 2,500
位數(shù): 24
采樣率(每秒): 6.8
數(shù)據(jù)接口: I²C,串行
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 480µW
電壓電源: 單電源
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 10-WFDFN 裸露焊盤
供應商設(shè)備封裝: 10-DFN(3x3)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,雙極
配用: DC956A-ND - BOARD DELTA SIGMA ADC LTC2485
LTC2485
4
2485fc
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+)IN+ Sampling Capacitance
11
pF
CS (IN)INSampling Capacitance
11
pF
CS (VREF)VREF Sampling Capacitance
11
pF
IDC_LEAK (IN+)IN+ DC Leakage Current
Sleep Mode, IN+ = GND
–10
1
10
nA
IDC_LEAK (IN)INDC Leakage Current
Sleep Mode, IN= GND
–10
1
10
nA
IDC_LEAK (VREF)REF+, REFDC Leakage Current
Sleep Mode, VREF = VCC
–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. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
0.7VCC
V
VIL
Low Level Input Voltage
0.3VCC
V
VIL(CA1)
Low Level Input Voltage for Address Pin
0.05VCC
V
VIH(CA0/f0,CA1)
High Level Input Voltage for Address Pins
0.95VCC
V
RINH
Resistance from CA0/f0, CA1 to VCC to Set
Chip Address Bit to 1
10
RINL
Resistance from CA1 to GND to Set Chip
Address Bit to 0
10
RINF
Resistance from CA0/f0, CA1 to VCC or
GND to Set Chip Address Bit to Float
2
II
Digital Input Current
–10
10
μA
VHYS
Hysteresis of Schmitt Trigger Inputs
(Note 5)
0.05VCC
V
VOL
Low Level Output Voltage SDA
I = 3mA
0.4
V
tOF
Output Fall Time from VIHMIN to VILMAX
Bus Load CB 10pF to 400pF (Note 14)
20+0.1CB
250
ns
tSP
Input Spike Suppression
50
ns
IIN
Input Leakage
0.1VCC ≤ VIN ≤ VCC
1μA
CI
Capacitance for Each I/O Pin
10
pF
CB
Capacitance Load for Each Bus Line
400
pF
CCAX
External Capacitive Load On-Chip Address
Pins (CA0/f0,CA1) for Valid Float
10
pF
VIH(EXT,OSC)
High Level CA0/f0 External Oscillator
2.7V ≤ VCC < 5.5V
VCC – 0.5V
V
VIL(EXT,OSC)
Low Level CA0/f0 External Oscillator
2.7V ≤ VCC < 5.5V
0.5
V
POWER REQUIREMENTS 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
VCC
Supply Voltage
2.7
5.5
V
ICC
Supply Current
Conversion Mode (Note 11)
Sleep Mode (Note 11)
160
1
250
2
μA
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