beautypg.com

Serial dac analog outputs, Serial dac analog outputs 195 – Watlow Series D8 User Manual

Page 213

background image

Series D8 User’s Guide

Chapter 8: Specifications

Doc. 0600-3120-2000

Watlow Anafaze

195

Serial DAC Analog Outputs

Table 8.32

Serial DAC Analog Output Specifi-
cations

Absolute Maximum Common

Mode Voltage

Measured between output terminals and controller common:

1000 V

Resolution

15 bits (plus polarity bit for voltage outputs)

(0.305 mV for 10 V output range)

(0.00061 mA for 20 mA output range)

Accuracy (Calibrated for Voltage

Output)

For voltage output: ± 0.005 V (0.05% at full scale)
For current output: ± 0.1 mA (0.5% at full scale)

Temperature coefficient

440 ppm/ °C typical

Isolation Breakdown Voltage

1000 V between input power and signals

Current

0 to 20 mA with 10 V minimum compliance (500

load)

Voltage

0 to 10 Vdc with 10 mA source capability

Output Response Time

1 ms typical

Update Rate

Once per controller A/D cycle nominal. Twice per second

maximum for 60 Hz clock rate.
Output changes are step changes due to the fast time con-

stant. All Serial DAC loop outputs are updated at the same

time.