U2781A Datasheet, PDF (27/76 Pages) Keysight Technologies – USB Modular Products

Product specifications
Model number
Analog input
Resolution
Number of channels
Maximum sampling rate
Programmable bipolar input range¹
Programmable unipolar input range
Input coupling
Input impedance
Operational common mode voltage range
Overvoltage range
Trigger sources
Trigger modes
FIFO buffer size
Analog output
Resolution
Number of channels
Maximum update rate
Output ranges
Output coupling
Output impedance
Stability
Power-on state
Trigger sources
Trigger modes
FIFO buffer size
Glitch energy
Driving capability
Function generation mode
Digital input/output
Number of bits
Compatibility
Input voltage
Input voltage range
Output voltage
General purpose digital timer/counter
Maximum count
Number of channels
Compatibility
Clock source
Base clock available
Maximum clock source frequency
Input frequency range⁴
Pulse width measurement range
U2531A
U2541A
U2542A
14 bits
16 bits
4 differential input channels (software selectable/channel)
2 MSa/s
250 kSa/s
500 kSa/s
±10 V, ±5 V, ±2.5 V, ±1.25 V
0 to 10 V, 0 to 5 V, 0 to 2.5 V, 0 to 1.25 V
DC
1 GΩ/100 pF
±8.0 V maximum
Power-on: Continuous ±30 V, Power-off: Continuous ±15 V
External analog/digital trigger, SSI/star trigger²
Pre-trigger, delay-trigger, post-trigger, and middle-trigger
Up to 8 MSa
12 Bits
2
1 MSa/s
0 to 10 V, ±10 V, 0 to AO_EXT_REF, ±AO_EXT_REF³
DC
0.1 Ω Typical
Any passive load up to 1500 pF
0 V steady state
External analog/digital trigger, SSI/star trigger²
Delay trigger, post trigger
1 Channel used: Maximum 8 MSa
4 Channels used: Maximum 2 MSa/ch
5 ns-V (Typical), 80 ns-V (Maximum)
5 mA
Sine, square, triangle, sawtooth, and noise waveforms
24-bit programmable input/output
TTL
VIL = 0.7 V maximum; IIL = 10 μA maximum
VIH = 2.0 V minimum; IIH = 10 μA maximum
–0.5 V to +5.5 V
VOL = 0.45 V maximum; IOL = 8 mA maximum
VOH = 2.4 V minimum; IOH = 400 μA maximum
(231 – 1) bits
2 Independent up/down counter
TTL
Internal or external
48 MHz
12 MHz
0.1 Hz to 6 MHz at 50% duty cycle
0.167 μs to 178.956 s ±0.0833 μs
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