U2781A Datasheet, PDF (29/76 Pages) Keysight Technologies – USB Modular Products

Electrical specifications and characteristics
Analog input characteristics¹
Model number
Offset error²
Gain error²
–3 dB Small signal bandwidth
1% THD Large signal bandwidth
System noise³
CMRR (DC to 60 Hz)
Spurious-Free Dynamic Range (SFDR)
Signal-to-Noise and Distortion Ratio
(SINAD)
Total Harmonic Distortion (THD)
Signal-to-Noise Ratio (SNR)
Effective Number of Bits (ENOB)
Channels crosstalk⁴
U2531A
23 °C ± 5 °C 0 °C to 18 °C
28 °C to 55 °C
±2 mV
±2 mV
±6 mV
±6 mV
1.2 MHz
400 KHz
2.0 mVrms
64 dB
76 dB
70 dB
–72 dB
72 dB
11.3-bit
66 dB
U2541A
23 °C ± 5 °C 0 °C to 18 °C
28 °C to 55 °C
±1 mV
±1 mV
±2 mV
±2.5 mV
600 KHz
400 KHz
0.5 mVrms
80 dB
88 dB
82 dB
–86 dB
84 dB
13.3-bit
84 dB
U2542A
23 °C ± 5 °C 0 °C to 18 °C
28 °C to 55 °C
±1 mV
±1 mV
±2 mV
±2.5 mV
1.0 MHz
400 KHz
0.5 mVrms
80 dB
86 dB
80 dB
–84 dB
82 dB
13.0-bit
80 dB
Analog output characteristics¹
Model number
Offset error
Gain error
Slew rate
Rise time
Fall time
Settling time(s) to 1% output error
U2531A
23 °C ± 5 °C 0 °C to 18 °C
28 °C to 55 °C
±1 mV
±3 mV
±3 mV
±4 mV
15 V/μs
1.1 μs
1.2 μs
1.1 μs
1.2 μs
2 μs
U2541A
23 °C ± 5 °C 0 °C to 18 °C
28 °C to 55 °C
±1 mV
±3 mV
±2 mV
±4 mV
15 V/μs
1.1 μs
1.2 μs
1.1 μs
1.2 μs
2 μs
U2542A
23 °C ± 5 °C 0 °C to 18 °C
28 °C to 55 °C
±1 mV
±3 mV
±2 mV
±4 mV
15 V/μs
1.1 μs
1.2 μs
1.1 μs
1.2 μs
2 μs
1 _{Specifications are based on 20 minutes warm-up, self-calibration temperature at 23 °C, and bipolar input range of ±10 V.}
2 _{The measurements are calculated with 100 points averaging of data.}
3 _{The noise rms value is the standard deviation of 20000 points.}
4 _{The crosstalk measurements are tested up to input frequency of Fin = MaxSamplingRate/2.}
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