FEATURES
12-Bit resolution, 400kHz throughput 8 Channels single-ended or 4 channels differential Miniature, 40-pin, ceramic DDIP Full scale input range from 100mV to 10V Three-state outputs No missing codes GENERAL DESCRIPTION
The HDAS-524 and HDAS-528 are complete data acquisition systems. Each contains an internal multiplexer, instrumentation amplifier, sample-hold, analog-to-digital converter and three-state outputs. Packaged in miniature, 40-pin, double-dip packages, the HDAS-524/528 have a low power dissipation of 2.6 Watts. The HDAS-524 provides 4 differential inputs, and the HDAS-528 provides 8 single-ended inputs. An internal instrumenta- tion amplifier is characterized for gains of 1, 2, 4, 8, 10 and 100. HDAS-524/528 OPERATION The HDAS devices accept either 8 single-ended or 4 differential input signals. Tie unused channels to SIGNAL GROUND, pin 14. Channel selection is accomplished using the multiplexer address pins as shown in Table 1. Obtain additional channels by connecting external multiplexers.