Datasheet

Measurement Computing [phone]
4
[e-mail] mccdaq.com
E-1608
Calibrated Absolute Accuracy (Analog Output)
Range: ±10 V
Absolute accuracy: (± 18.7 LSB)
Calibrated Absolute Accuracy Components (Analog Output)
Range: ±10 V
% of reading: ± 0.024
Offset: ±2.2 mV)
Offset Tempco: 30.1 µV/°C
Gain Tempco: 13.2 ppm of range/°C
Relative Accuracy (Analog Output)
Range: ±10 V
Relative accuracy (INL): ±4.0 LSB typ
Analog Input/Output Calibration
Recommended warm-up time: 15 minutes min
Calibration method: Factory
Calibration interval: 1 year (factory calibration)
Digital Input/Output
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
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.
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.
Input high voltage threshold: 2.0 V min
Input high voltage limit: 5.5 V absolute max
Input low voltage threshold: 0.8 V max
Input low voltage limit: –0.5 V absolute min, 0 V recommended min
Output high voltage: 3.8 V typ at no load, 3.0 V min (IOH = –3 mA),
2.0 V min (IOH = –32 mA)
Output low voltage 0.15 V typ at no load, 0.55 V max (IOL = 64 mA)
Power on and reset state: Input
External Trigger
Trigger source (external digital): TRIG
Trigger mode: Software-selectable edge or level sensitive; user configurable for
CMOS-compatible rising or falling edge, high or low level
Trigger latency: 2 µs + 1 pacer clock cycle max
Trigger pulse width: 1 µs min
Input type: Schmitt trigger, 47 kΩ pull-down to ground
Schmitt trigger hysteresis: 1.01 V typ, 0.6 V min, 1.5 V max
Input high voltage threshold: 2.43 V typ, 1.9 V min, 3.1 V max
Input high voltage limit: 5.5 V absolute max
Input low voltage threshold: 1.42 V typ, 1.0 V min, 2.0 V max
Input low voltage limit: –0.5 V absolute min, 0 V recommended min
Specifications
Analog Input DC Voltage Measurement Accuracy (All Values are (±))
Range
Gain Error
(% of Reading)
Offset Error
INL Error
(% of Range)
Absolute Accuracy
at
Full Scale
Gain Temperature
Coefficient
(% Reading/°C)
Offset
Temperature
Coefficient
±10 V 0.024 915 µV 0.0076 4075 µV 0.0014 47 µV/°C
±5 V 0.024 686 µV 0.0076 2266 µV 0.0014 24 µV/°C
±2 V 0.024 336 µV 0.0076 968 µV 0.0014 10 µV/°C
±1 V 0.024 245 µV 0.0076 561 µV 0.0014 5 µV/°C
Noise Performance
Range Counts LSBrms
±10 V 6 0.91
±5 V 6 0.91
±2 V 7 1.06
±1 V 9 1.36
For the peak-to-peak noise distribution test, a differential input channel is con-
nected to AGND at the input terminal block, and 16384 samples are acquired at
the maximum rate available at each setting.
Settling Time
Range 4 µs Settling
Accuracy
(% FSR)
6 µs Settling
Accuracy
(% FSR)
10 µs Settling
Accuracy
(% FSR)
±10 V 0.0061 0.0031 0.0015
±5 V 0.0061 0.0031 0.0015
±2 V 0.0061 0.0031 0.0015
±1 V 0.0061 0.0031 0.0015
Settling time is defined as the accuracy that can be expected after one conversion
when switching from a channel with a DC input at one extreme of full scale to
another channel with a DC input at the other extreme of full scale. Both input
channels are configured for the same input range.
Analog Output
Number of channels: 2
Resolution : 16 bits
Output ranges (calibrated): ±10 V
Output transient
Powered on
Duration: 5 ms
Amplitude: 2 V p-p
Powered off
Duration: 400 ms
Amplitude: 10 V p-p
Differential nonlinearity (16-bit monotonic): ±0.35 LSB typ, ±1 LSB max
Output current (AOUTx pins): ±3.5 mA max; leave unused AOUTx output
channels disconnected
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.
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.
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.
Slew rate: 5 V/µs
Throughput (software paced): 1000 S/s to 5000 S/s typ, on local network
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.