User`s guide

6 • Introduction
• System Noise (LSBrms, including Quantization, Typical, 25°C)
Device
Input
Range
System Noise Input Range System Noise
±10V
0.95 LSBrms 0~10V 1.5 LSBrms
±5V
1.0 LSBrms 0~5V 1.6 LSBrms
±2.5V
1.1 LSBrms 0~2.5V 1.7 LSBrms
2205
±1.25V
1.3 LSBrms 0~1.25V 1.9 LSBrms
±10V
0.8 LSBrms 0~10V 0.9 LSBrms
±5V
0.85 LSBrms 0~5V 1.0 LSBrms
±2.5V
0.85 LSBrms 0~2.5V 1.0 LSBrms
2206
±1.25V
0.9 LSBrms 0~1.25V 1.2 LSBrms
Table 3: System Noise
• Input impedance
Normal Power On Power Off Overload
1GΩ / 100pF 820Ω 820Ω
Table 4: Input impedance
• CMRR (DC to 60Hz, Typical)
Device Input Range CMRR Input Range CMRR
2204 All ranges 90dB -- --
±10V
83dB 0~10V 87dB
±5V
87dB 0~5V 90dB
±2.5V
90dB 0~2.5V 92dB
2205
2206
±1.25V
92dB 0~1.25V 93dB
Table 5: CMRR (DC to 60Hz)