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參數(shù)資料
| 型號： | LTC1043MD883C |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, CDIP18 |
| 封裝： | SIDE BRAZED, HERMETIC SEALED, DIP-18 |
| 文件頁數(shù)： | 17/19頁 |
| 文件大?。?/td> | 358K |
| 代理商： | LTC1043MD883C |
LTC1043
7
1043fa
Figure 4. Individual Switch Charge Injection
vs Input Voltage
Figure 5. Printed Circuit Board Layout
Showing Shielding the Sampling Capacitor
Figure 6. Internal Oscillator
APPLICATIO S I FOR ATIO
WU
UU
VIN (V)
0
CHARGE
INJECTION
(pCb)
2
4
6
8
48
12
16
LTC1043 AI04
10
12
26
10
14
V+ = 15V
V– = 0V
V+ = 10V
V– = 0V
V+ = 5V
V– = 0V
LTC1043 AI05
1
2
3
CS
OUTSIDE FOIL
PRINTED CIRCUIT
BOARD AREA
LTC1043
recover from the latch mode when the input drops 3V to 4V
below the voltage value which caused the latch. For
instance, if an external resistor of 200 is connected in
series with an input pin, the input can be taken 1.3V above
the supply without latching the IC. The same applies for the
C+ and C– pins.
COSC Pin (16), Figure 6
The Cosc pin can be used with an external capacitor, Cosc,
connected from Pin 16 to Pin 17, to modify the internal
oscillator frequency. If Pin 16 is floating, the internal 24pF
capacitor, plus any external interpin capacitance, set the
oscillator frequency around 190kHz with ±5V supply. The
typical performance characteristics curves provide the
necessary information to set the oscillator frequency for
various power supply ranges. Pin 16 can also be driven
with an external clock to override the internal oscillator.
Although standard 7400 series CMOS gates do not
guarantee CMOS levels with the current source and sink
requirements of Pin 16, they will in reality drive the Cosc
pin. CMOS gates conforming to standard B series output
drive have the appropriate voltage levels and more than
enough output current to simultaneously drive several
LTC1043 COSC pins. The typical trip levels of the Schmitt
trigger (Figure 6) are given below.
LTC1043 * AI06
24pF
17
16
4
COSC
(EXTERNAL)
fOSC = 190kHz
(24pF)
(24pF + COSC)
COSC
V+
V–
38F
TO CLK GENERATOR
SUPPLY
TRIP LEVELS
V+ = 5V, V– = 0V
VH = 3.4VVL = 1.35V
V+ = 10V, V– = 0V
VH = 6.5VVL = 2.8V
V+ = 15V, V– = 0V
VH = 9.5VVL = 4.1V
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| LTC1044ACN8 | 功能描述:IC REG MULTI CONFIG 20MA 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
| LTC1044ACN8#PBF | 功能描述:IC REG MULTI CONFIG 20MA 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC |
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