LOG101

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比例因子为 1V/十倍频的精密对数和对数比放大器

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全新 LOG200 预发布 具有光电二极管偏置和暗电流校正功能的高速精密对数放大器 Upgraded performance and with integrated features. Smaller QFN package option.

产品详情

Scale factor (V/decade) 1 Input current range (min) (nA) 100 Input current range (max) (mA) 3.5 Offset voltage (input amplifiers) (max) (mV) 1.5 Vs (±) (min) (V) 4.5 Vs (±) (max) (V) 18 Iq (max) (mA) 1.5 Dynamic range (typ) (dB) 150 Reference type External Auxiliary op amps 0 Full-scale output voltage (min) (±V) 1.2 Full-scale output voltage (max) (±V) 1.5 Conformity error (initial 5 decades) (max) (%) 0.2 Conformity error (initial 5 decades) (typ. over temp) (%/°C) 0.0001 Operating temperature range (°C) -40 to 85 Specified voltage (±V) 5 Rating Catalog
Scale factor (V/decade) 1 Input current range (min) (nA) 100 Input current range (max) (mA) 3.5 Offset voltage (input amplifiers) (max) (mV) 1.5 Vs (±) (min) (V) 4.5 Vs (±) (max) (V) 18 Iq (max) (mA) 1.5 Dynamic range (typ) (dB) 150 Reference type External Auxiliary op amps 0 Full-scale output voltage (min) (±V) 1.2 Full-scale output voltage (max) (±V) 1.5 Conformity error (initial 5 decades) (max) (%) 0.2 Conformity error (initial 5 decades) (typ. over temp) (%/°C) 0.0001 Operating temperature range (°C) -40 to 85 Specified voltage (±V) 5 Rating Catalog
SOIC (D) 8 29.4 mm² 4.9 x 6
  • EASY-TO-USE COMPLETE CORE FUNCTION
  • HIGH ACCURACY: 0.01% FSO Over 5 Decades
  • WIDE INPUT DYNAMIC RANGE:
         7.5 Decades, 100pA to 3.5mA
  • LOW QUIESCENT CURRENT: 1mA
  • WIDE SUPPLY RANGE: ±4.5V to ±18V
  • APPLICATIONS
    • LOG, LOG RATIO, ANTI-LOG COMPUTATION:
           Communication, Analytical, Medical, Industrial, Test, and General Instrumentation
    • PHOTODIODE SIGNAL COMPRESSION AMPS
    • ANALOG SIGNAL COMPRESSION IN FRONT OF ANALOG-TO-DIGITAL (A/D)CONVERTERS

Note: Protected under US Patent #6,667,650; other patents pending.

  • EASY-TO-USE COMPLETE CORE FUNCTION
  • HIGH ACCURACY: 0.01% FSO Over 5 Decades
  • WIDE INPUT DYNAMIC RANGE:
         7.5 Decades, 100pA to 3.5mA
  • LOW QUIESCENT CURRENT: 1mA
  • WIDE SUPPLY RANGE: ±4.5V to ±18V
  • APPLICATIONS
    • LOG, LOG RATIO, ANTI-LOG COMPUTATION:
           Communication, Analytical, Medical, Industrial, Test, and General Instrumentation
    • PHOTODIODE SIGNAL COMPRESSION AMPS
    • ANALOG SIGNAL COMPRESSION IN FRONT OF ANALOG-TO-DIGITAL (A/D)CONVERTERS

Note: Protected under US Patent #6,667,650; other patents pending.

The LOG101 is a versatile integrated circuit that computes the logarithm or log ratio of an input current relative to a reference current.

The LOG101 is tested over a wide dynamic range of input signals. In log ratio applications, a signal current can come from a photodiode, and a reference current from a resistor in series with a precision external reference.

The output signal at VOUT is trimmed to 1V per decade of input current allowing seven decades of input current dynamic range.

Low DC offset voltage and temperature drift allow accurate measurement of low-level signals over a wide environmental temperature range. The LOG101 is specified over the temperature range –5°C to +75°C, with operation over –40°C to +85°C.

The LOG101 is a versatile integrated circuit that computes the logarithm or log ratio of an input current relative to a reference current.

The LOG101 is tested over a wide dynamic range of input signals. In log ratio applications, a signal current can come from a photodiode, and a reference current from a resistor in series with a precision external reference.

The output signal at VOUT is trimmed to 1V per decade of input current allowing seven decades of input current dynamic range.

Low DC offset voltage and temperature drift allow accurate measurement of low-level signals over a wide environmental temperature range. The LOG101 is specified over the temperature range –5°C to +75°C, with operation over –40°C to +85°C.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LOG101: Precision Logarithmic and Log Ratio Amplifier 数据表 (Rev. B) 2004年 6月 10日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

仿真模型

LOG101 PSpice Model (Rev. B)

SBOC042B.ZIP (24 KB) - PSpice Model
模拟工具

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模拟工具

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TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能,允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

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用户指南: PDF
英语版 (Rev.A): PDF
封装 引脚 下载
SOIC (D) 8 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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