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參數(shù)資料
| 型號： | MAX9119EXK+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC COMPARATOR BTR SC70-5 |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 系列： | Beyond-the-Rails™ |
| 類型： | 通用 |
| 元件數(shù)： | 1 |
| 輸出類型： | CMOS，推挽式，滿擺幅，TTL |
| 電壓 - 電源，單路/雙路(±)： | 1.6 V ~ 5.5 V |
| 電壓 - 輸入偏移（最小值）： | 5mV @ 5V |
| 電流 - 輸入偏壓（最小值）： | 0.001µA @ 5V |
| 電流 - 輸出（標準）： | 50mA |
| 電流 - 靜態(tài)（最大值）： | 1.2µA |
| CMRR, PSRR（標準）： | 66.02dB CMRR，80dB PSRR |
| 傳輸延遲（最大）： | 40µs |
| 磁滯： | 4mV |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 6-TSSOP（5 引線），SC-88A，SOT-353 |
| 安裝類型： | 表面貼裝 |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 1391 (CN2011-ZH PDF) |
| 其它名稱： | MAX9119EXK+TDKR |
MAX9117–MAX9120
SC70, 1.6V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
12
______________________________________________________________________________________
Board Layout and Bypassing
Power-supply bypass capacitors are not typically
needed, but use 100nF bypass capacitors close to the
device’s supply pins when supply impedance is high,
supply leads are long, or excessive noise is expected
on the supply lines. Minimize signal trace lengths to
reduce stray capacitance. A ground plane and sur-
face-mount components are recommended. If the REF
pin is decoupled, use a new low-leakage capacitor.
Zero-Crossing Detector
Figure 5 shows a zero-crossing detector application.
The MAX9119’s inverting input is connected to ground,
and its noninverting input is connected to a 100mVP-P
signal source. As the signal at the noninverting input
crosses 0V, the comparator’s output changes state.
Logic-Level Translator
The Typical Application Circuit shows an application
that converts 5V logic to 3V logic levels. The MAX9120
is powered by the +5V supply voltage, and the pullup
resistor for the MAX9120’s open-drain output is con-
nected to the +3V supply voltage. This configuration
allows the full 5V logic swing without creating overvolt-
age on the 3V logic inputs. For 3V to 5V logic-level
translations, simply connect the +3V supply voltage to
VCC and the +5V supply voltage to the pullup resistor.
Chip Information
TRANSISTOR COUNT: 98
MAX9120
IN-
2M
2M
RPULLUP
3V (5V)
LOGIC OUT
OUT
VCC
+5V (+3V)
+3V (+5V)
VEE
5V (3V) LOGIC IN
IN+
LOGIC-LEVEL
TRANSLATOR
Typical Application Circuit
VEE
VCC
OUT
R3
R2
R1
R4
VREF
VIN
VCC
MAX9118
MAX9120
Figure 4. MAX9118/MAX9120 Additional Hysteresis
MAX9119
IN+
OUT
VCC
100mVP-P
VCC
VEE
IN-
Figure 5. Zero-Crossing Detector
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