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

5.7 Electrical Characteristics LNA + Log Detector (AFE)

at TA = 25°C, VCC = 5V, CF = 1nF and RF = 43kΩ (slope = 43mV/dB for f = 1MHz), Ref_resistor = 1% 56kΩ, with 2nd-order external band-pass filter (BPF) of gain = –7dB, and RSOURCE = 50Ω (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
AFE AC PERFORMANCE
LCE Log conformance error f = 1MHz ±0.6 ±1.2 dB
TA = –40°C to +125°C ±1.3
DR Dynamic range For LCE = ±1.2dB, f = 1MHz 91 dB
Log Detector slope variation Ref_Res = open ±4.5 %
Ref_Res = 56kΩ of 1% accuracy ±1 ±7
Ref_Res = 56kΩ of 1% TA = –40°C to +125°C ±7
AFE INPUT
AFE input Typical input voltage  LCE = ±1dB, f = 1MHz 6µ 200m VP
TA = –40°C to +125°C 8µ 200m
LCE = ±1dB, f = 20MHz 9µ 200m
TA = –40°C to +125°C 10µ 200m
Output rise time BPF = 180kHz, CF = 350pF  35 µs
BPF = 1MHz, CF = 500pF  50
Output fall time BPF = 180kHz, CF = 350pF  65 µs
BPF = 1MHz, CF = 500pF  45
LOG_OUT
Minimum output voltage LNA_In = 10nF to AGND  290 335 mV
TA = –40°C to +125°C 436
POWER SUPPLY
Quiescent current  Total AFE, LNA_Out = open, Freq_Supply = open 6 7.2 mA
TA = –40°C to +125°C 8.3
POWER DOWN
Disabled current Total AFE TA = –40°C to +125°C 130 µA
AFE_
En		 AFE enable voltage threshold Floating = enable VCC– 1.2 V
AFE disable voltage threshold AGND + 0.6 V