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LMP7300

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具有可调节迟滞功能的精密微功耗单路比较器

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LMP7300

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产品详情

Number of channels 1 Output type Open-collector, Open-drain Propagation delay time (µs) 7.7 Vs (max) (V) 12 Vs (min) (V) 2.7 Rating Catalog Features Hysteresis, Internal Reference Iq per channel (typ) (mA) 0.01 Vos (offset voltage at 25°C) (max) (mV) 0.75 Rail-to-rail No Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 3 VICR (max) (V) 11.1 VICR (min) (V) 1
Number of channels 1 Output type Open-collector, Open-drain Propagation delay time (µs) 7.7 Vs (max) (V) 12 Vs (min) (V) 2.7 Rating Catalog Features Hysteresis, Internal Reference Iq per channel (typ) (mA) 0.01 Vos (offset voltage at 25°C) (max) (mV) 0.75 Rail-to-rail No Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 3 VICR (max) (V) 11.1 VICR (min) (V) 1
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • (For VS = 5 V, typical unless otherwise noted)
  • Supply Current 13 µA
  • Propagation Delay 4 µs
  • Input Offset Voltage 0.3 mV
  • CMRR 100 dB
  • PSRR 100 dB
  • Positive and Negative Hysteresis Control
  • Adjustable Hysteresis 1 mV/mV
  • Reference Voltage 2.048 V
  • Reference Voltage Accuracy 0.25%
  • Reference Voltage Source Current 1 mA
  • Wide Supply Voltage Range 2.7 V to 12 V
  • Operating Temperature Range Ambient –40°C to
    125°C
  • (For VS = 5 V, typical unless otherwise noted)
  • Supply Current 13 µA
  • Propagation Delay 4 µs
  • Input Offset Voltage 0.3 mV
  • CMRR 100 dB
  • PSRR 100 dB
  • Positive and Negative Hysteresis Control
  • Adjustable Hysteresis 1 mV/mV
  • Reference Voltage 2.048 V
  • Reference Voltage Accuracy 0.25%
  • Reference Voltage Source Current 1 mA
  • Wide Supply Voltage Range 2.7 V to 12 V
  • Operating Temperature Range Ambient –40°C to
    125°C

The LMP7300 is a combination comparator and reference with ideal specifications for precision threshold detecting. The precision 2.048-V reference comes with a 0.25% maximum error. The comparator features micropower (35 µW), low offset voltage (0.75-mV maximum), and independent adjustable positive and negative hysteresis.

Hysteresis control for the comparator is accomplished through two external pins. The HYSTP pin sets the positive hysteresis, and the HYSTN pin sets the negative hysteresis. The comparator design isolates the VIN source impedance and the programmable hysteresis components. This isolation prevents any undesirable interaction allowing the IC to maintain a precise threshold voltage during level detection.

The combination of low offset voltage, external hysteresis control, and precision voltage reference provides an easy-to-use micropower precision threshold detector.

The LMP7300 open collector output is ideal for mixed-voltage system designs. The output voltage upper rail is unconstrained by VCC and can be pulled above VCC to a maximum of 12 V. The LMP7300 is a member of the LMP precision amplifier family.

The LMP7300 is a combination comparator and reference with ideal specifications for precision threshold detecting. The precision 2.048-V reference comes with a 0.25% maximum error. The comparator features micropower (35 µW), low offset voltage (0.75-mV maximum), and independent adjustable positive and negative hysteresis.

Hysteresis control for the comparator is accomplished through two external pins. The HYSTP pin sets the positive hysteresis, and the HYSTN pin sets the negative hysteresis. The comparator design isolates the VIN source impedance and the programmable hysteresis components. This isolation prevents any undesirable interaction allowing the IC to maintain a precise threshold voltage during level detection.

The combination of low offset voltage, external hysteresis control, and precision voltage reference provides an easy-to-use micropower precision threshold detector.

The LMP7300 open collector output is ideal for mixed-voltage system designs. The output voltage upper rail is unconstrained by VCC and can be pulled above VCC to a maximum of 12 V. The LMP7300 is a member of the LMP precision amplifier family.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LMP7300 Micropower Precision Comparator and Precision Reference With Adjustable Hysteresis 数据表 (Rev. G) PDF | HTML 2015-7-30
电子书 The Signal e-book: 有关运算放大器设计主题的博客文章汇编 PDF | HTML 英语版 PDF | HTML 2018-1-31
用户指南 LMP7300 Single Precision Comparator w/ Reference Evaluation Boards (SOIC & MSOP) (Rev. C) 2013-5-1

设计与开发

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评估板

AMP-PDK-EVM — 放大器高性能开发套件评估模块

放大器高性能开发套件 (PDK) 是一款用于测试常见运算放大器参数的评估模块 (EVM) 套件，与大多数运算放大器和比较器均兼容。该 EVM 套件提供了一个主板，主板上具有多个插槽式子卡选项以满足封装需求，使工程师能够快速评估和验证器件性能。

AMP-PDK-EVM 套件支持五种常用的业界通用封装，包括：

  • D（SOIC-8 和 SOIC-14）
  • PW (TSSOP-14)
  • DGK (VSSOP-8)
  • DBV（SOT23-5 和 SOT23-6）
  • DCK（SC70-5 和 SC70-6）
用户指南: PDF | HTML
支持的产品和硬件
仿真模型

LMP7300 PSPICE Model

SNOM104.ZIP (4 KB) - PSpice 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VSSOP (DGK) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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