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| 型号： | ADCMP670-1YUJZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC COMPARATOR DUAL OD TSOT-23-6 |
| 标准包装： | 1 |
| 类型： | 带电压基准 |
| 元件数： | 2 |
| 输出类型： | 开路漏极 |
| 电压 - 电源，单路/双路(±)： | 1.7 V ~ 5.5 V |
| 电流 - 输入偏压（最小值）： | 0.01µA @ 1.7V |
| 电流 - 静态（最大值）： | 11µA |
| 传输延迟（最大）： | 10µs |
| 磁滞： | 11mV |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 安装类型： | 表面贴装 |
| 包装： | 标准包装 |
| 产品目录页面： | 765 (CN2011-ZH PDF) |
| 其它名称： | ADCMP670-1YUJZ-RL7DKR |
ADCMP670
Rev. A | Page 13 of
16
APPLICATION INFORMATION
The ADCMP670 is a dual low power comparator with a
built-in 400 mV reference that operates from 1.7 V to 5.5 V.
The comparator is 1.5% accurate with a built-in hysteresis of
8.9 mV. The outputs are open-drain, capable of sinking 40 mA.
COMPARATORS AND INTERNAL REFERENCE
Each comparator has one input available externally.
Comparator A has a noninverting input and Comparator B has
an inverting input available. The other comparator inputs are
connected internally to the 400 mV reference. The rising input
threshold voltage of the comparators is designed to be equal to
that of the reference.
POWER SUPPLY
The ADCMP670 is designed to operate from 1.7 V to 5.5 V.
A 0.1 μF decoupling capacitor is recommended between VDD
and GND.
INPUTS
The comparator inputs are limited to the maximum VDD voltage
range. The voltage on these inputs can be above VDD but never
above the maximum allowed VDD voltage. When adding a
resistor string to the input, care must be taken when choosing
resistor values. This is due to the fact that the input bias current
will be in parallel with the bottom resistor of the string. This
bottom resistor must therefore be chosen first to control the
error introduced by this bias current.
OUTPUTS
The comparator outputs are open-drain and are also limited to
the maximum specified VDD voltage range, regardless of the VDD
voltage. These outputs are capable of sinking up to 40 mA.
Outputs can be tied together to provide a window comparator
with a single output.
ADDING HYSTERESIS
To prevent oscillations at the output caused by noise or
slowly moving signals passing the switching threshold, each
comparator has built-in hysteresis of approximately 8.9 mV.
Positive feedback can be used to increase hysteresis to the
noninverting comparator.
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