TDT RA4LI Hardware Reference Manual Download Page 9

Page: 9 / 10

Headstage Voltage Range

When using a TDT preampli

er the voltage input range of the preampli

er is typically lower

than the headstage and must be considered the effective range of the system. Check the
speci

cations of your ampli

er for voltage range.

RA16LI-D Technical Speci

cations

Pinout Diagram

Input referred noise

0.1 uV RMS bandwidth 300-3000 Hz
0.3 uV RMS bandwidth 2-8000 Hz

Headstage Gain

20x

Highpass Filter

2.2 Hz

Lowpass Filter

7.5 kHz

Input Impedance

1e6 ohms

Pins 1, 21-24 and 39 are not connected.

Note

Low Impedance Headstages | 9

Summary of Contents for RA4LI

Page 1: ...Low Impedance Headstages Hardware Reference Updated 2021 09 15...

Page 2: ...tices The information contained in this document is provided as is and is subject to being changed without notice TDT shall not be liable for errors or damages in connection with the furnishing use or...

Page 3: ...Voltage Range 5 RA4LI Technical Specifications 5 RA16LI 16 Channel Headstage 6 Impedance Checking with the Low Impedance Headstage 6 Headstage Voltage Range 7 RA16LI Technical Specifications 8 RA16LI...

Page 4: ...annel and the reference Additional 20x gain on the headstage improves signal to noise of low voltage signals Impedance Checking with the Low Impedance Headstage The Impedance checker on the RA4LI prov...

Page 5: ...e below lists the input voltage ranges for the RA4LI headstage for either 1 5 V or 2 5 V power sources RA4LI Technical Specifications RA16LI 16 Channel Headstage The sixteen channel low impedance head...

Page 6: ...en the channel and the ground If all impedance lights are illuminated it is likely that one of the channels is not properly connected The impedance button checks the impedance between the reference an...

Page 7: ...ctor Information on the pin inputs is provided below Input referred noise 0 1 uV RMS bandwidth 300 3000 Hz 0 3 uV RMS bandwidth 2 8000 Hz Headstage Gain 20x Highpass Filter 2 2 Hz Lowpass Filter 7 5 k...

Page 8: ...Low Impedance Headstage to PZ Preamplifier 16 channels for more information The differential inputs allow for improved common mode rejection on all channels Because of the increased complexity of the...

Page 9: ...ange of the system Check the specifications of your amplifier for voltage range RA16LI D Technical Specifications Pinout Diagram Input referred noise 0 1 uV RMS bandwidth 300 3000 Hz 0 3 uV RMS bandwi...

Page 10: ...Differential Input 31 D1 10 A10 Analog Input 32 A3 Analog Input 11 A11 33 D4 Differential Input 12 A12 34 GND Ground 13 D13 Differential Input 35 D6 Differential Input 14 GND Ground 36 D7 15 A16 Anal...