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參數(shù)資料
| 型號(hào)： | MAX917ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference |
| 中文描述： | COMPARATOR, 10000 uV OFFSET-MAX, 95000 ns RESPONSE TIME, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 150K |
| 代理商： | MAX917ESA |
M
SOT23, 1.8V, Nanopower, Beyond-the-Rails
Comparators With/Without Reference
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX920
IN-
100k
100k
R
PULL-UP
3V (5V)
LOGIC OUT
OUT
V
CC
+5V (+3V)
+3V (+5V)
V
EE
5V (3V) LOGIC IN
IN+
LOGIC LEVEL
TRANSLATOR
V
EE
V
CC
OUT
R3
R2
R1
R4
V
REF
V
IN
V
CC
MAX918
MAX920
Figure 4. MAX918/MAX920 Additional Hysteresis
Pin Configurations (continued)
MAX919
IN+
OUT
V
CC
100mVp-p
V
CC
V
EE
IN-
Figure 5. Zero-Crossing Detector
Typical Application Circuit
OUT
N.C.
( ) ARE FOR MAX917/MAX918.
V
EE
1
2
8
7
N.C.
V
CC
IN- (REF)
IN+
N.C.
SO
TOP VIEW
3
4
6
5
MAX917
MAX918
MAX919
MAX920
6) Verify the trip voltages and hysteresis as follows:
Hysteresis = V
THR
- V
THF
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.
Zero-Crossing Detector
Figure 5 shows a zero-crossing detector application.
The MAX919’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 MAX920 is
powered by the +5V supply voltage, and the pull-up
resistor for the MAX920’s open-drain output is connect-
ed to the +3V supply voltage. This configuration allows
the full 5V logic swing without creating overvoltage on
the 3V logic inputs. For 3V to 5V logic-level translations,
simply connect the +3V supply voltage to V
CC
and the
+5V supply voltage to the pull-up resistor.
V rising:V
V
R1
1
R1
1
R2
1
R3
V falling:V
THR
REF
THF
=
+
+
=
V
R1
1
R1
1
R2
1
R3 R4
R1
R3 R4
V
REF
CC
+
+
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| MAX917EUK-T | SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference |
| MAX920ESA | SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference |
| MAX920EUK-T | SOT23, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX917ESA+ | 功能描述:校驗(yàn)器 IC 1.8V nPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX917ESA+T | 功能描述:校驗(yàn)器 IC 1.8V nPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX917ESA-T | 功能描述:校驗(yàn)器 IC 1.8V nPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX917EUK | 制造商:Maxim Integrated Products 功能描述:5 PIN COUNT SOT PACKAGE TYPE - Bulk |
| MAX917EUK+ | 制造商:Maxim Integrated Products 功能描述:COMPARATOR SGL R-R O/P 5.5V 5PIN SOT-23 - Bulk |
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