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參數資料
| 型號： | MAX9024 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Octal Bus Transceivers With 3-State Outputs 20-LCCC -55 to 125 |
| 中文描述： | 微功耗、超小型、單/雙/四路、單電源比較器 |
| 文件頁數： | 5/8頁 |
| 文件大小： | 353K |
| 代理商： | MAX9024 |
M
Micropower, Ultra-Small, Single/Dual/Quad,
Single-Supply Comparators
_______________________________________________________________________________________
5
Detailed Description
The MAX9021/MAX9022/MAX9024 are single/dual/
quad, low-cost, low-power comparators that consume
only 2.8μA and provide a propagation delay, t
PD
, typi-
cally 3μs. They have an operating-supply voltage from
2.5V to 5.5V when operating from a single supply and
from ±1.25V to ±2.75V when operating from dual power
supplies. Their common-mode input voltage range
extends from the negative supply to within 1.1V of the
positive supply. Internal hysteresis ensures clean out-
put switching, even with slow-moving input signals.
Applications Information
Adding Hysteresis
Hysteresis extends the comparator
’
s noise margin by
increasing the upper threshold and decreasing the
lower threshold. A voltage-divider from the compara-
tor
’
s output sets the trip voltage. Therefore, the trip volt-
age is related to the output voltage.
These comparators have 4mV internal hysteresis.
Additional hysteresis can be generated with two resis-
tors, using positive feedback (Figure 1). Use the follow-
ing procedure to calculate resistor values:
1) Find the trip points of the comparator using these for-
mulas:
V
TH
= V
REF
+ ((V
DD
- V
REF
)R2) / (R1 + R2)
V
TL
= V
REF
(1 - (R2 / (R1 + R2))
where V
TH
is the threshold voltage at which the com-
parator switches its output from high to low as V
IN
rises above the trip point. V
TL
is the threshold volt-
age at which the comparator switches its output from
low to high as V
IN
drops below the trip point.
Pin Description
PIN
M A X9 0 2 1
M A X9 0 2 2
M A X9 0 2 4
NAME
FUNCTION
1
—
—
IN+
Comparator Noninverting Input
2
4
11
V
SS
Negative Supply Voltage
3
—
—
IN-
Comparator Inverting Input
4
—
—
OUT
Comparator Output
5
8
4
V
DD
Positive Supply Voltage. Bypass with a 0.1μF capacitor to GND.
—
1
1
OUTA
Comparator A Output
—
2
2
INA-
Comparator A Inverting Input
—
3
3
INA+
Comparator A Noninverting Input
—
5
5
INB+
Comparator B Noninverting Input
—
6
6
INB-
Comparator B Inverting Input
—
7
7
OUTB
Comparator B Output
—
—
8
OUTC
Comparator C Output
—
—
9
INC-
Comparator C Inverting Input
—
—
10
INC+
Comparator C Noninverting Input
—
—
12
IND+
Comparator D Noninverting Input
—
—
13
IND-
Comparator D Inverting Input
—
—
14
OUTD
Comparator D Output
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9024ASD | 功能描述:校驗器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX9024ASD+ | 功能描述:校驗器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX9024ASD+T | 功能描述:校驗器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX9024ASD-T | 功能描述:校驗器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX9024AUD | 功能描述:校驗器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
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