SLOSEB7A September   2024  – October 2024 LOG300

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics Low Noise Amplifier (LNA) 
    6. 5.6 Electrical Characteristics Log Detector
    7. 5.7 Electrical Characteristics LNA + Log Detector (AFE)
    8. 5.8 Typical Characteristics: VCC = 5V
    9. 5.9 Typical Characteristics: VCC = 3.3V
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Offset Correction Loop (OCL)
      2. 7.3.2 Single and Differential Input
      3. 7.3.3 Input Frequency Detect
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Ultrasonic Distance Measurement
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RGT|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.8 Typical Characteristics: VCC = 5V

at TA = 25°C, VCC = 5V, CF = 1nF, RF = 43kΩ (slope = 43mV/dB) and Ref_Res = 1% 56kΩ, and 10nF capacitor to AGND on Log_Inp and Log_Inm, (unless otherwise noted). For AFE, 2nd-order BPF centered around frequency "f" with gain = -7dB used between LNA and Log Detector block.

LOG300 Log Detector Slope at Various Frequencies
 
Figure 5-1 Log Detector Slope at Various Frequencies
LOG300 AFE Slope at Various Frequencies
 
Figure 5-3 AFE Slope at Various Frequencies
LOG300 Log Detector Slope at Different Temperature Points
 f = 1MHz
Figure 5-5 Log Detector Slope at Different Temperature Points
LOG300 Log Detector Slope at Different Temperature Points
f = 20MHz 
Figure 5-7 Log Detector Slope at Different Temperature Points
LOG300 Log Detector Slope Variation with Input Signal Frequency
 
Figure 5-9 Log Detector Slope Variation with Input Signal Frequency
LOG300 Log Detector Slope Histogram with Ref_Res
Ref_Res = 56kΩ μ = 43.55mV/dB σ = 0.44mV/dB
Figure 5-11 Log Detector Slope Histogram with Ref_Res
LOG300 Minimum Input Sensitivity of Log_Detector
LCE = ±1dB,
f = 1MHz		 μ = 22.15μVP σ = 1.59μVP
Figure 5-13 Minimum Input Sensitivity of Log_Detector
LOG300 Minimum Output Voltage at Log_Out
50Ω + 10nF at Log_Inp to AGND μ = 0.19V σ = 0.04V
Figure 5-15 Minimum Output Voltage at Log_Out
LOG300 Minimum Log_Out Voltage vs Time
Figure 5-17 Minimum Log_Out Voltage vs Time
LOG300 Log Detector Rise and Fall Time
f = 1MHz CF = 1nF
Figure 5-19 Log Detector Rise and Fall Time
LOG300 Log Detector Rise and Fall Time
f = 1MHz CF = 100pF
Figure 5-21 Log Detector Rise and Fall Time
LOG300 Small-Signal Step Response: Inverting Buffer
 
Figure 5-23 Small-Signal Step Response: Inverting Buffer
LOG300 Large-Signal Step Response: Inverting Buffer
 
Figure 5-25 Large-Signal Step Response: Inverting Buffer
LOG300 LNA Overdrive Recovery
 
Figure 5-27 LNA Overdrive Recovery
LOG300 Frequency Detector Output Waveform
 
Figure 5-29 Frequency Detector Output Waveform
LOG300 Log Detector Output Stage Overdrive
 CF = 200pF, RF = 100kΩ
Figure 5-31 Log Detector Output Stage Overdrive
LOG300 Log Conformance Error for Different Frequencies
 
Figure 5-2 Log Conformance Error for Different Frequencies
LOG300 AFE Log Conformance Error for Different Frequencies
 
Figure 5-4 AFE Log Conformance Error for Different Frequencies
LOG300 Log Conformance Error for Different Temperature Points
 f = 1MHz
Figure 5-6 Log Conformance Error for Different Temperature Points
LOG300 Log Conformance Error for Different Temperature Points
 f = 20MHz
Figure 5-8 Log Conformance Error for Different Temperature Points
LOG300 Log Detector Slope Variation vs Supply
f = 1MHz
Figure 5-10 Log Detector Slope Variation vs Supply
LOG300 Log Detector Slope Histogram without Ref_Res
Ref_Res = Open μ = 42.03mV/dB σ = 0.53mV/dB
Figure 5-12 Log Detector Slope Histogram without Ref_Res
LOG300 Minimum Input Sensitivity of Log_Detector
LCE = ±2dB,
f = 20MHz		 μ = 22.14μVP σ = 1.67μVP
Figure 5-14 Minimum Input Sensitivity of Log_Detector
LOG300 Minimum Output Voltage at Log_Out
10nF at Log_Inp to AGND μ = 0.15V σ = 0.04V
Figure 5-16 Minimum Output Voltage at Log_Out
LOG300 Slope Variation vs Temperature
Figure 5-18 Slope Variation vs Temperature
LOG300 Log Detector Rise and Fall Time
f = 1MHz CF = 10nF
Figure 5-20 Log Detector Rise and Fall Time
LOG300 Small-Signal Step Response: Buffer
 
Figure 5-22 Small-Signal Step Response: Buffer
LOG300 Large-Signal Step Response: Buffer
 
Figure 5-24 Large-Signal Step Response: Buffer
LOG300 Log Detector Slope for Various Input Waveforms
f = 1MHz
Figure 5-26 Log Detector Slope for Various Input Waveforms
LOG300 AFE Overdrive Recovery
BPF = 180kHz, CF = 220pF 
Figure 5-28 AFE Overdrive Recovery
LOG300 Log Detector Input Stage Overdrive
CF = 200pF , Log_Inp = 4VP
Figure 5-30 Log Detector Input Stage Overdrive
LOG300 Output vs 100mVpp Ripple Injected on VCC
AFE; BPF = 80kHz, RC filter on VCC of R = 50Ω, C = 12µF
Figure 5-32 Output vs 100mVpp Ripple Injected on VCC