Agilent Technologies U2802A Manuale Utente Scaricare il pdf (Pagina 16)

U2300A

Basic multifunction USB DAQ (continued)

Digital I/O

Number of channels 24-bit programmable input/output

Compatibility TTL

Input voltage

= 0.7 V max, I

= 10 μA max

= 2.0 V min, I

= 10 μA max

Input voltage range –0.5 V to +5.5 V

Output voltage

= 0.45 V max, I

= 8 mA max

= 2.4 V min, I

= 400 μA max

General purpose digital counter

Maximum count (2³¹–1) bits

Number of channels Two independent up/down counter

Compatibility TTL

Clock source Internal or external

Base clock available 48 MHz

Maximum clock source

frequency

12 MHz

Input frequency range

[4]

0.1 Hz to 6 MHz at 50% duty cycle

Pulse width measurement range 0.167 μs to 178.956 s

Analog trigger

Trigger source All analog input channels, External analog trigger (EXTA_TRIG)

Trigger level ±Full scale for internal; ±10 V for external

Trigger conditions Above high, below low, and window (software selectable)

Trigger level resolution 8 bits

Bandwidth 400 kHz

Input impedance for EXTA_TRIG 20 kΩ

Coupling DC

Overvoltage protection Continuous for ± 35 V

maximum

Digital trigger

Compatibility TTL/CMOS

Response Rising or falling edge

Pulse width 20 ns minimum

Calibration

[5]

On board reference voltage 5 V

Temperature drift ±2 ppm/°C

Stability ±6 ppm/1000 hrs

General

Remote interface Hi-Speed USB 2.0

Device class USBTMC-USB488

Programmable interface Standard Commands for Programmable Instruments (SCPI) and IVI-COM

[1]

When multiple channels are used, the sampling rate of each channel is the maximum sampling rate divided by the number of channels used.

[2]

System Synchronous Interface (SSI) and Star trigger commands are used when modular devices are used in the product chassis.

[3]

Maximum external reference voltage for analog output channels (AO_EXT_REF) is ±10 V.

[4]

Measurement frequency’s resolution:

= 12 MHz/n, n = 2, 3, 4, 5, ..., 120 M

= 6 MHz, 4 MHz, 3 MHz, 2.4 MHz, 2.0 MHz, ..., 0.1 Hz (up to six decimal points)

[5]

20 minutes warm-up time is recommended.

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 73 74

Commenti su questo manuale

Nessun commento

Agilent Technologies U2802A Manuale Utente Pagina 16

Commenti su questo manuale

Prodotti e manuali riguardandi Misurazione, test & controllo Agilent Technologies U2802A