Texas Instruments TLS243xx Single-Ended Magnetoresistive Preamp Fact Sheet

• Meets Requirements of Advanced Magnetoresistive (MR) Drive Technology
  First high performance single-ended amplifier to support MR drives with performance levels above 110 Mbps
  Previous generation TLS241xx supported MR HDDs with up to 70 Mbps
• Facilitates a Lower Cost-Per-Megabyte Approach To Data Storage Versus a Differential MR Preamp
  TI is first to offer small TSSOP packages with optimized pinout for two, four, six, eight and 10 channels. By placing the device on the head stack, designers can increase performance at a lower system cost with less noise
  Single-end design eliminates the need for a separate IC to provide negative voltages required by differential MR preamps
• Supports Higher Disk Drive Performance
  Features industry-proven current bias/current sense architecture
  Features thermal asperity detection to enhance read back performance
  Boost circuit available for increased read bandwidth
  Fast write to read recovery minimizes wasted disk area
• Offers Low Power Consumption
  Operates from a single +5V supply for low power consumption
  Features low power idle mode
• Key Device Specifications
• Device Number
  TLS24302 2 - channels
  TLS24304 4 - channels
  TLS24306 6 - channels
  TLS24308 8 - channels
  TLS24310 10 - channels
  Form Factor - 2.5"/3.5"
  Package - TSSOP
  Input Type - SE
  Typical Input Noise - 0.55 nV/sqrt(Hz)
  Write Current - 10-35 mA
  Read Gain - 230 V/V
  MR Head Resistance - 10-40 ohm
  Average Bandwidth - 65 MHz at -1dB , - 140 MHz at -3dB
  Power Supplies - +5 V
  Interface - Parallel
  Average Rise Time - 3.7 ns
  Typical Write to Read - 0.8 us
  Recovery Time
  Typical Read to Write - 50 ns
  Recovery Time

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