| Model |
MR7 |
MR5 |
| Read Amplifier |
|
|
| Differential Voltage/Current Sense Amplifier |
Current Sense |
Voltage Sense |
| Bandwidth |
DC - 3GHz |
1.3GHz at –3dB |
| Flatness |
±0.5dB, 0.3MHz to 2GHz |
±0.5dB, 0.3 to 1GHz |
| Input Noise: |
1 |
less than 0.6 |
| MR Bias Current/Voltage |
±400mV |
programmable: –10 to 10mA in 0.01mA steps, |
| Common Mode Rejection Ratio |
24dB |
|
| Non-Linear Distortions |
less than 1% (1GHz, 1mV input level) |
less than 1% (1GHz, 1mV input level) |
| Amplification |
24dB |
30dB*) |
| Write to Read Recovery Time |
|
less than 200nsec for both Bias On and Shut Down Bias modes |
| Input Impedance |
80Ohm |
|
| Compatibility with Universal Preamplifier |
UP10 |
UP8 |
| Write Driver |
|
|
| Write Data Speed |
up to 4Gbit/sec |
up to 2Gbit/sec |
| Rise/Fall Time of Write Current |
100psec (10-90%) |
300psec (10-90%) |
| Programmable Overshoot |
YES(Amplitue 0 to 100 mA (zero to peak). Width from 250 psec
to 900 psec (PW50)) |
YES (up to 100% of write current in 1% steps) |
| Output Common Mode Voltage |
less than ±0.1V |
less than ±0.1V |
| Write Current |
programmable: 0 - 100 mA |
programmable: 2 to 80mA (zero to peak) in 0.02mA steps |
| Read to Write Recovery Time |
less than 100nsec |
less than 40nsec |
| Head Voltage Swing |
more than 12V peak to peak |
more than 12V peak to peak |
| Output Impedance |
60Ohm differential |
50Ohm single ended
(100Ohm differential) |
