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| 型号： | MAX9140EUK-T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC COMPARATOR SGL R-R LP SOT23-5 |
| 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： | 1 |
| 输出类型： | CMOS，推挽式，TTL |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V |
| 电压 - 输入偏移（最小值）： | 2mV @ 5V |
| 电流 - 输入偏压（最小值）： | 0.32µA @ 5V |
| 电流 - 静态（最大值）： | 300µA |
| CMRR, PSRR（标准）： | 81.94dB CMRR，81.94dB PSRR |
| 传输延迟（最大）： | 40ns |
| 磁滞： | 1.5mV |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | SC-74A，SOT-753 |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (TR) |
MAX9140/MAX9141/MAX9142/MAX9144
Output Stage Circuitry
The MAX9140/MAX9141/MAX9142/MAX9144 contain a
current-driven output stage as shown in Figure 4.
During an output transition, ISOURCE or ISINK is pushed
or pulled to the output pin. The output source or sink
current is high during the transition, creating a rapid
slew rate. Once the output voltage reaches VOH or
VOL, the source or sink current decreases to a small
value, capable of maintaining the VOH or VOL static
condition. This significant decrease in current con-
serves power after an output transition has occurred.
One consequence of a current-driven output stage is a
linear dependence between the slew rate and the load
capacitance. A heavy capacitive load will slow down a
voltage output transition. This can be useful in noise-
sensitive applications where fast edges may cause
interference.
Applications Information
Circuit Layout and Bypassing
The high-gain bandwidth of the MAX9140/MAX9141/
MAX9142/MAX9144 requires design precautions to
realize the full high-speed capabilities of these com-
parators. The recommended precautions are:
1) Use a PCB with a good, unbroken, low-induc-
tance ground plane.
2) Place a decoupling capacitor (a 0.1F ceramic
capacitor is a good choice) as close to VCC as
possible.
3) Pay close attention to the decoupling capacitor’s
bandwidth, keeping leads short.
4) On the inputs and outputs, keep lead lengths
short to avoid unwanted parasitic feedback
around the comparators.
5) Solder the device directly to the PCB instead of
using a socket.
40ns, Low-Power, 3V/5V, Rail-to-Rail
Single-Supply Comparators
8
_______________________________________________________________________________________
VOH
tLPW
OUT
tLPD
tPD
VCC
0
VCC
2
VCC
2
VOL
LE
DIFFERENTIAL
INPUT
VOLTAGE
VOS
VOD
tH
tS
MAX9140
MAX9141
MAX9142
MAX9144
4.1k
TO INTERNAL
CIRCUITRY
TO INTERNAL
CIRCUITRY
IN–
IN+
Figure 3. Input Stage Circuitry
Figure 2. MAX9141 Timing Diagram with Latch Operator
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9140EXK | 制造商:Maxim Integrated Products 功能描述:LOW-POWER, 3V/5V, RAIL-TO-RAIL COMPARATORS - Rail/Tube |
| MAX9140EXK+ | 制造商:Maxim Integrated Products 功能描述:COMPARATOR SGL R-R I/P 5.5V 5PIN SC-70 - Bulk |
| MAX9140EXK+T | 功能描述:校验器 IC 40ns Low-Power 3V/5V 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 |
| MAX9140EXK-T | 功能描述:校验器 IC 40ns Low-Power 3V/5V 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 |
| MAX9140-MAX9144 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators |
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