HADC574Z

The HADC574Z is a kind of complete, 12 bit successive approximation A/D converter. The HADC574Z is integrated on a single die to make it the first monolithic CMOS version of the industry standard versions, H1574A and AD574A. The typical applications include military/industrial data acquisition systems, 8 or 12-bit P input functions, process control systems, test and scientific instruments, personal computer interface.

There are some features of HADC574Z as follows: (1)improved pin-to-pin compatible monolithic version of the H1574A and AD574A; (2)complete 12-bit A/D converter with sample/hold, reference and clock; (3)low power dissipation (150 mW max); (4)12-bit linearity (over temp); (5)25 s max conversion time; (6)no negative supply required; (7)full bipolar and unipolar input range.

The following is about the absolute maximum ratings of HADC574Z: (1)positive supply voltage (VCC to DGND): 0 to +16.5 V; (2)logic supply voltage (VLOGIC to DGND): 0 to +7 V; (3)analog to digital ground (AGND to DGND): -0.5 to +1 V; (4)control input voltages (to DGND) (CE, CS, A0, 12/8, R/C): -0.5 to VLOGIC+0.5 V; (5)analog input voltage (to AGND) (REF IN, BIP OFF, 10 Vin): ±16.5 V; (6)20 V Vin input voltage (to AGND): ±24 V; (7)reference output voltage: indefinite short to GND and momentary short to VCC; (8)ambient operating temperature: -55 to +125; (9)junction temperature: +175; (10)lead temperature (soldering, 10 seconds): +300; (11)storage temperature; -65 to +150; (12)power dissipation: 1000 mW; (13)thermal resistance (jA): 48 /W.