V
參數(shù)資料
型號: LTC2449IUHF
廠商: Linear Technology
文件頁數(shù): 23/28頁
文件大?。?/td> 0K
描述: IC ADC 24BIT HI SPEED 38QFN
標準包裝: 52
位數(shù): 24
采樣率(每秒): 8k
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 40mW
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: 38-WFQFN 裸露焊盤
供應商設備封裝: 38-QFN(5x7)
包裝: 管件
輸入數(shù)目和類型: 16 個單端,雙極;8 個差分,雙極
配用: DC742A-ND - BOARD DELTA SIGMA ADC LTC2449
LTC2444/LTC2445/
LTC2448/LTC2449
4
2444589fb
TI I G CHARACTERISTICS
U
W
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
Supply Voltage
4.5
5.5
V
ICC
Supply Current
Conversion Mode
CS = 0V (Note 7)
811
mA
Sleep Mode
CS = VCC (Note 7)
830
A
The
denotes specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. (Note 3)
POWER REQUIRE E TS
W
U
The
denotes specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
4.5V
≤ VCC ≤ 5.5V
2.5
V
CS, FO
VIL
Low Level Input Voltage
4.5V
≤ VCC ≤ 5.5V
0.8
V
CS, FO
VIH
High Level Input Voltage
4.5V
≤ VCC ≤ 5.5V (Note 8)
2.5
V
SCK
VIL
Low Level Input Voltage
4.5V
≤ VCC ≤ 5.5V (Note 8)
0.8
V
SCK
IIN
Digital Input Current
0V
≤ VIN ≤ VCC
–10
10
A
CS, FO, EXT, SOI
IIN
Digital Input Current
0V
≤ VIN ≤ VCC (Note 8)
–10
10
A
SCK
CIN
Digital Input Capacitance
10
pF
CS, FO
CIN
Digital Input Capacitance
(Note 8)
10
pF
SCK
VOH
High Level Output Voltage
IO = –800A
VCC – 0.5V
V
SDO, BUSY
VOL
Low Level Output Voltage
IO = 1.6mA
0.4V
V
SDO, BUSY
VOH
High Level Output Voltage
IO = –800A (Note 9)
VCC – 0.5V
V
SCK
VOL
Low Level Output Voltage
IO = 1.6mA (Note 9)
0.4V
V
SCK
IOZ
Hi-Z Output Leakage
–10
10
A
SDO
DIGITAL I PUTS A D DIGITAL OUTPUTS
UU
The
denotes specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fEOSC
External Oscillator Frequency Range
0.1
20
MHz
tHEO
External Oscillator High Period
25
10000
ns
tLEO
External Oscillator Low Period
25
10000
ns
tCONV
Conversion Time
OSR = 256 (SDI = 0)
0.99
1.13
1.33
ms
OSR = 32768 (SDI = 1)
126
145
170
ms
External Oscillator (Notes 10, 13)
40 OSR +170
fEOSC (kHz)
ms
fISCK
Internal SCK Frequency
Internal Oscillator (Note 9)
0.8
0.9
1
MHz
External Oscillator (Notes 9, 10)
fEOSC/10
Hz
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