Connector Options

USB2871/2871A/2871B/2871C are versions with built-in terminal blocks

USB2871/2871A/2871B/2871C -V versions feature VHDCI connectors

AD Analog Input

ADC Resolution

16-bit

Input Channels

16 single-ended/differential synchronous acquisition channels

Input Range

±10V, ±5V, ±2.5V, ±1.25V

Sampling Rate

2MS/s (USB2871); 1MS/s (USB2871A)

500KS/s (USB2871B); 250KS/s (USB2871C)

Sampling Mode

On-demand single-point acquisition, continuous acquisition, finite-point acquisition

Memory Depth

8K word FIFO

AD Trigger Source

Software forced trigger, analog trigger, external digital trigger

DA Analog Output

Output Channels

4-channel 16-bit synchronous output

Output Rate

2MS/s (USB2871/2871A); 1MS/s (USB2871B/2871C)

Range

±10V, ±5V

Memory Depth

4K word FIFO

CTR Counter

Number of Channels

4-channel 32-bit multifunctional counter with buffer

Electrical Standard

TTL level

Counter Functions

CI: Edge counting, frequency measurement, period measurement, half-period measurement, pulse width measurement,

dual-edge interval measurement, linear position measurement, angular position measurement

CO: Pulse output

CI/CO Acquisition Mode

On-demand single-point sampling, finite-point sampling, continuous sampling

Memory Depth

2K point FIFO memory

DI/O

Number of Channels

48 channels (32 buffered digital I/O, 16 programmable I/O)

Configuration Method

Program-controlled I/O direction and status