User manual

Use equations (1) and (2) to determine signal-to-noise ratio (SNR) and corresponding effective number of bits
(ENOB).
Equation (1) SNR
|dB
= 20 * log(noise / full-scale input)
Equation (2) ENOB
|BIT
= (SNR
|dB
- 1,76dB) / 6,02dB
Equation (3) gives a representation of noise in counts. All counts data stated in the table above are 24 bit
aligned values.
Equation (3) Noise
|counts
= 2^(24 - ENOB)
To calculate a corresponding 16 bit value, counts data needs to be divided by 2^8.
Equation (4) Noise
|counts_16Bit
= Noise
|counts_24Bit
/ 2^8
Use equation (5) to calculate Peak-To-Peak Resolution & Effective Resolution in V:
Equation (5) Resolution
|V
= full-scale input / (2^Resolution
|BIT
)
Specifications - Analog Input
Parameter Condition Min Typical Max Units
Typical Input Range (1) Gain=1 -10,5 10,09 volts
Max AI Voltage to GND (2) Valid Readings -12,3 12,3 volts
Max AI Voltage to GND (3) No Damage -20 20 volts
Input Bias Current (4) 5 30 nA
Input Impedance (4) 1 G©
Source Impedance (4) 1 k©
Integral Linearity Error Gain=1, 10, 100 t.b.d t.b.d % FS
Gain=1000 t.b.d t.b.d % FS
Absolute Accuracy (~23±2°C)(5) Range=±10V ±0,01 % FS
Range=±1V ±0,01 % FS
Range=±100mV ±0,01 % FS
Range=±10mV ±0,04 % FS
Temperature Drift t.b.d ppm/°C
Noise (Peak-To-Peak) <23,2 µV
Effective Resolution (RMS) 16,2 bits
Noise-Free Resolution 14,1 bits
Cross-talk(6) 1kHz 100 dB
10kHz 86 dB
1. Single-Ended or Differential.
2. Maximum voltage on any Analog Input compared to GND for valid measurements on other channels.
For readings on the channel itself, Single-Ended inputs are limited by the "Typical Input Range". For
Differential readings consult common mode input voltage range tables.
3. Maximum voltage compared to GND on any Analog Input to prevent CEBO LC from damage. This is
19/63