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參數(shù)資料
| 型號： | MAX9024AUD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC COMPARATOR QUAD 14-TSSOP |
| 其它有關(guān)文件： | Automotive Product Guide |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 通用 |
| 元件數(shù)： | 4 |
| 輸出類型： | CMOS，滿擺幅，TTL |
| 電壓 - 電源，單路/雙路(±)： | 2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V |
| 電壓 - 輸入偏移（最小值）： | 1mV @ 5V |
| 電流 - 輸入偏壓（最小值）： | 0.003µA @ 5V |
| 電流 - 靜態(tài)（最大值）： | 5µA |
| CMRR, PSRR（標(biāo)準(zhǔn)）： | 100dB CMRR，80dB PSRR |
| 傳輸延遲（最大）： | 8µs |
| 磁滯： | 4mV |
| 工作溫度： | -40°C ~ 125°C |
| 封裝/外殼： | 14-TSSOP（0.173"，4.40mm 寬） |
| 安裝類型： | 表面貼裝 |
| 包裝： | 帶卷 (TR) |
MAX9021/MAX9022/MAX9024
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 2.8A and provide a propagation delay, tPD, typi-
cally 3s. 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:
VTH = VREF + ((VDD - VREF)R2) / (R1 + R2)
VTL = VREF(1 - (R2 / (R1 + R2))
where VTH is the threshold voltage at which the com-
parator switches its output from high to low as VIN
rises above the trip point. VTL is the threshold volt-
age at which the comparator switches its output from
low to high as VIN drops below the trip point.
Pin Description
PIN
MAX9021
MAX9022
MAX9024
NAME
FUNCTION
1—
—
IN+
Comparator Noninverting Input
24
11
VSS
Negative Supply Voltage
3—
—
IN-
Comparator Inverting Input
4—
—
OUT
Comparator Output
58
4
VDD
Positive Supply Voltage. Bypass with a 0.1F 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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