A-3-1-1 T4 AIN General Specs [T-Series Datasheet] | LabJack
« Close

Datasheets and User Guides

App Notes

Software & Driver


A-3-1-1 T4 AIN General Specs [T-Series Datasheet]




Table A.3-1. T4 Analog Input Information.  Specifications at 25 degrees C and Vusb/Vext = 5.0V, except where noted.

Parameter Conditions Min Typical Max Units
Analog Inputs          
Typical Input Range (1) low voltage AIN (LV) 0   2.5 volts
  high voltage AIN (HV) -10.0   10.0 volts
Max AIN Voltage to GND (6) No Damage, FIO -10   10 volts
  No Damage, EIO -6   6 volts
  No Damage, HV -40   40 volts
Input Impedance (7) LV   40  
  HV   1.3  
Source Impedance (7) LV     10
  HV     1
Resolution All Ranges   12   bits
  LV, 0-2.5   0.6   mV
  HV, ±10   5.0   mV
Integral Linearity Error     ±0.05   % FS
Differential Linearity Error     ±1   counts
Absolute Accuracy (8) Single-Ended %   ±0.13   % FS
  Single-Ended LV volts   ±3.3   mV
  Single-Ended HV volts   ±26.8   mV
Temperature Drift     15   ppm/°C
Effective Resolution (RMS) (10) Appendix A-3-1-2   >12   bits
Command/Response Speed Appendix A-1        
Stream Performance Appendix A-1     50k  
* LV specs refer to low voltage analog inputs which are available on the T4 analog lines AIN4 - AIN11.  HV specs refer to high voltage analog inputs which are available on analog lines AIN0 - AIN3 only.
(1) Note that these are typical input ranges.  The actual minimum on the low voltage inputs might not go all the way to 0.0.
(6) Maximum voltage, compared to ground, to avoid damage to the device. Protection level is the same whether the device is powered or not.     
(7) The low-voltage analog inputs essentially connect directly to a SAR ADC on the T4, presenting a capacitive load to the signal source. The high-voltage inputs connect first to a resistive level-shifter/divider. The key specification in both cases is the maximum source impedance. As long as the source impedance is not over this value, there will be no substantial errors due to impedance problems.     
(8) Absolute accuracy includes INL, DNL, and all other sources of internal error at 25 C and VS=5.0V.