IC695ALG708

Output Ranges

Current: 0 to 20mA, 4 to 20mA Voltage: +/- 10V, 0 to 10V

Backplane Power Requirements

IC695ALG704: 320mA maximum at 3.3V IC695ALG708:330mA maximum at 3.3V

IC605ALG728 with HART enabled: 340mA  maximum at 3.3V

Power Dissipation within Module

IC695ALG704: 4.8 Watts maximum (Vuser=24V)

IC695ALG708,  IC695ALG728:  7.25 Watts maximum (Vuser=24V)

Thermal Derating

IC695ALG704: no derating.

IC695ALG708, see derating curves later in this document IC695ALG728: please refer to the RX3i System Manual, GFK-2314C or

later for derating information.

External +Power Supply

Voltage Range: 19.2V to 30V (24V nominal) Current required for ALG704: 120mA maximum Current required for ALG708:  210mA maximum

Current required for ALG728:190mA maximum

Resolution

+/-10V: 15.9 bits,  0 to 10V: 14.9 bits,  0 to 20mA: 15.9 bits,

4 to 20mA : 15.6 bits

HART Communications

Version 5.0 HART protocol supported on module IC695ALG728.

Output Data Format

Configurable as floating point IEEE 32 bit or 16-bit integer in a 32-bit field

Analog Update Rate (Determined by I/O scan time, application dependent)

IC695ALG704 and ALG708: 8 milliseconds (approximate, all eight channels)

ALG728: 16mS with HART (approximate, all eight channels) 8mS without HART (approximate, all eight channels)

HART Data Scan Time (in seconds) The HART data scan can consist of up to four acquisition cycles (similar but asynchronous to the analog scan time).  Each cycle includes a specific set of channels.  Total HART scan

time depends on the number of channels enabed for HART within a specific set of channels, number of retries, enabling/disabling of slot variables, and use and configuration settings of pass-thru commands.

One HART Channel in Group

Each HART Data channel updates every 0.7 second (typical)

Two HART Channels in Group

Each HART Data channel updates every 1.9 seconds (typical)

Three HART Channels in Group

Each HART Data channel updates every 3.0 seconds (typical)

Four HART Channels in Group

Each HART Data channel updates every 4.0 seconds (typical)

Output Overvoltage Protection

Current outputs only:  -30V for 60 seconds, +30V for one hour

Calibrated Accuracy

Accurate to within 0.15% of full scale at 25°C Accurate to within 0. 25% of full scale at 60°C

In the presence of severe RF interference (IC 801-3, 10V/M), accuracy may be degraded to +/-1% FS.

Output Load Reactance

Current: 10µH maximum, Voltage: 1µF maximum

Maximmum Output Load

Current: 850 Ohms maximum at Vuser = 20V Voltage: 2 Kohms minimum

Output Gain Drift

Voltage output: 20ppm per degree C typical Current output: 35ppm per degree C typical

Output Settling Time

ALG704, ALG708: Voltage or current output: 2ms, 0 to 95% ALG728: Voltage Output:  2ms, 0 to 95%

Current output with HART: 70mS, 0 to 95% Current output without HART: 23ms, 0 to 95%

Isolation, Field to Backplane

2550VDC for one second

Maximum Compliance Voltage

Vuser  – 3V (minimum) to Vuser (maximum)