• A 100-MS/s 8-b CMOS Subranging ADC with Sustained Parametric Performance from 3.8 V Down to 2.2 V (Part Two)
  BY: Robert C. Taft and Maria Rosaria Tursi, Data Conversion Systems
  A 100-MS/s 8-b CMOS analog-to-digital converter (ADC) designed for very low supply voltage and power dissipation is presented. This single-ended-input ADC is based on the unified two-step subranging architecture, which processes the coarse and fine decisions in identical signal paths to maximize their matching.
  
  

• AN-1112: Micro SMD Wafer Level Chip Scale Package  (pdf 620KB)
  This application note is an introduction into the Micro SMD package.  It includes information about package construction, assembly, layout, component placement, qualification and characterization.
• AN-1119: Voltage Doubler Design and Analysis (pdf 92KB)
  Today s wireless applications demand lower operating voltages. A voltage doubler provides a means of obtaining a wider VCO tuning range at lower voltages. This paper dis-cusses the considerations that need to be made when using a voltage doubler. Specific test results are shown for a CDMA application.
• AN-1193: LM3477 Evaluation Board (pdf 208KB)
  The LM3477 is a current mode, high-side N channel FET controller. It is most commonly used in buck configurations, as shown in Figure 1. All the power conducting components of the circuit are external to the LM3477, so a large variety of inputs, outputs, and loads can be accommodated by the LM3477.
• AN-1149: Layout Guidelines for Switching Power Supplies (pdf 114KB)
  When designing a high frequency switching regulated power supply, layout is very important. Using a good layout can solve many problems associated with these types of supplies. Using the simple guidelines that follow will help minimize these problems.
  
  

Application Brief 103

Tiny Temperature Sensors for Portable Systems (pdf 53KB)
BY: Emmy Denton, System Products Applications
The last year has seen the introduction of silicon temperature sensors in revolutionary small packages, ideal for portable systems. This brief will discuss trade-offs in accuracy, as well as how to choose between thermistors and analog output IC temperature sensors.

• LM26 
  Customize +/-3 deg C Accurate Temp Sensor to Your System Needs.
• LM2611
  Voltage Inverter in SOT-23. The LM2611 Packs the Most Power in the Smallest Package.
• LM3722
  National's LM3722/3/4 Guarantees Supply Current of <10uA to 125 deg C and Offers Supply Voltages as Low as 1V with Guaranteed State.
• LM88
  Two Remote Temp Sensor Comparators with Low Cost Fan Control Application
  
  

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