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| 型号： | MAX9022ASA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC COMPARATOR DUAL 8-SOIC |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 通用 |
| 元件数： | 2 |
| 输出类型： | CMOS，满摆幅，TTL |
| 电压 - 电源，单路/双路(±)： | 2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V |
| 电压 - 输入偏移（最小值）： | 1mV @ 5V |
| 电流 - 输入偏压（最小值）： | 0.003µA @ 5V |
| 电流 - 静态（最大值）： | 5µA |
| CMRR, PSRR（标准）： | 100dB CMRR，80dB PSRR |
| 传输延迟（最大）： | 8µs |
| 磁滞： | 4mV |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9022AUA | 功能描述:校验器 IC Dual uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX9022AUA+ | 功能描述:校验器 IC Dual uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX9022AUA+T | 功能描述:校验器 IC Dual uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX9022AUA-T | 功能描述:校验器 IC Dual uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX9024 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Micropower, Ultra-Small, Single/Dual/Quad, Single-Supply Comparators |
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