PZ2 Z-Series Preamplifier
 Designed for use with high impedance headstages, TDT’s high-count Z-Series preamplifiers feature a fast fiber optic connection capable of simultaneously transferring up to 256 channels at full precision. This extended bandwidth supports sampling rates up to ~50 kHz and improves signal fidelity, spike discrimination, sorting, and analysis. Used exclusively with Z-Series base stations, preamps are available in 32, 64, 96, 128 or 256-channel models. Our custom 18-bit hybrid A/D architecture offers the advantages of Sigma-Delta converters at significantly lower power. LEDs indicate battery status as well as spike detection and clipping on each channel.
Part numbers:
PZ2-32 32-Channel PreAmp
PZ2-64 64-Channel PreAmp
PZ2-96 96-Channel PreAmp
PZ2-128 128-Channel PreAmp
PZ2-256 256-Channel PreAmp
Technical specifications:
| A/D: |
up to 256 channels 18-bit hybrid |
| A/D sampling rate: |
up to ~50 kHz |
| Maximum voltage in: |
10 mV |
| Input Impedance |
100 kohms |
| Frequency Response |
3 dB: 0.35 Hz – 7.5 kHz
6 dB: 0.2 Hz – 9 kHz |
| Battery: |
two Lithium-Ion cells at 10 AmpHours each
eight hours to charge both cells
battery life between charges, per cell:
32 ch ~ 13 hrs
64 ch ~ 11 hrs
96 ch ~ 9.5 hrs
128 ch ~ 8 hrs
256 ch ~ 5 hrs |
| Indicator LEDs: |
256 status, 256 clipping, battery life, active battery bank |
| Noise Floor: |
~2 µV rms 300- 7000Hz |
| Charger: |
external 6VDC, 3A power supply |
PZ-BAT External Battery Pack
 An external battery pack is available for use with the PZ amplifier. Ideal for long recording sessions, the PZ-BAT provides 42 AmpHours and requires 8-10 hours to charge to 95% capacity and 14 hours to fully charge. It is provided with an internal 6VDC, 3A power supply charger.
External battery performance:
| # of Ch |
PZ-BAT |
| 32 |
55 hrs |
| 64 |
46 hrs |
| 96 |
40 hrs |
| 128 |
34 hrs |
| 256 |
21 hrs |
| all time values are typical |
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