TZA1000 - QIC read-write amplifier

TZA1000 Input for fast reader/writer (track height servo) signal selection Power fail detection on both 5 and 12 V lines (status can be read from the read register) Write unsafe detection Provides an accurate reference voltage (for AD conversion) Ve

• 3-wire serial interface for programming.
• On-chip Digital-to-Analog Converters (DAC) for:.
• MR (Magneto Resistive) sense bias current.
• MR DC bias current.
• Write current.
• Low noise differential input stage: typically 0.65 nV/√Hz (Zi = 0 Ω).
• Magnetic feedback circuit to handle large output signals.
• MR DC bias current circuit.
• Very fast write current rise and fall times with near rail-to-rail voltage swing.
• Max.