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Analog input/output calibration, Digital input/output – Measurement Computing E-1608 User Manual

Page 22

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E-1608 User's Guide

Specifications

22

Parameter

Condition

Specification

Output coupling

DC

Power on and
reset state

DACs cleared to uncalibrated zero-scale: 0 V, ±50 mV unless the alarm
function is enabled for the output (Note 3)

Alarm functionality

Either or both outputs may be configured to go to defined values when
an Ethernet connection with a host is established or lost.

Output update rate

1000 to 5000 S/s typ, on local network (Note 4)

Slew rate

5 V/µs

Throughput

Software paced

1000 to 5000 S/s typ, on local network (Note 4)

Note 2:

Leave unused AOUTx output channels disconnected.

Note 3:

AOUTx defaults to 0 V whenever the device is powered on or a reset command is issued to the device,
unless the alarm functionality is enabled for the output.

Note 4:

This is the typical throughput when the device and host are both connected by Ethernet to the same
local network. The throughput can vary significantly, and typical throughput is not guaranteed if a
wireless connection is involved or data is sent over the internet.

Table 6. Calibrated absolute accuracy specifications

Range

Absolute accuracy (±LSB)

±10 V

18.7

Table 7. Calibrated absolute accuracy components specifications

Range

% of reading

Offset
(±mV)

Offset tempco
(µV/°C)

Gain tempco
(ppm of range/°C)

±10 V

± 0.024

2.2

30.1

13.2

Table 8. Relative accuracy specifications (±LSB)

Range

Relative accuracy (INL)

±10 V

4.0 typ

Analog input/output calibration

Table 9. Analog input/output calibration specifications

Parameter

Specification

Recommended warm-up time

15 minutes min

Calibration method

Factory

Calibration interval

1 year (factory calibration)

Digital input/output

Table 10. Digital input/output specifications

Parameter

Specification

Digital type

5 V TTL input / advanced BiCMOS output

Number of I/O

8

Configuration

Independently configured for input or output

Pull-up configuration

All pins pulled up to 5 V using 47 K resistors (default).
Can be changed to pull-down using an internal jumper.

Digital I/O transfer rate
(system-paced)

100 to 5000 port reads/writes or single bit reads/writes per second typ, on local
network (Note 5)

Alarm functionality

Any combination of DIO bits may be configured to become outputs and go to defined
values when an Ethernet connection with a host is established or lost.

Power on and reset state

All bits are input unless the alarm functionality is enabled for them.