PGA100

The PGA100 is a kind of precision, digitally-programmable gain amplifier (PGA) combined with an 8 channel ±35V protected input multiplexer. The digital gain and channel select are internally latched for easy microprocessor interface. The fast 5sec settling time allows. The user can select any one of eight analog input channels to be amplified by one of the eight noninverting binarily weighted gain steps from 1 to 128. the PGA100 to be used in rapid channel scanning data acquisition systems.

The features of PGA100 can be summarized as (1)high gain accuracy max (B Grade); (2)input protection, ±20V above ±15V supplies; (3)high input impedance: 10^11; (4)fast settllng, 5sec to 0.01%; (5)low channel to channel croastalk, -90dB; (6)(low nonllnearlly ±0.005% mai (B Grade); (7)8 analog Input channels; (8)selectable gains,1, 2, 4, 8, 16, 32, 64, 123 v/v; (9)fully microprocessor-compatible.

The absolute maximum ratings of PGA100 are (1)analog supply(V+, V-): ±18V; (2)digital supply (VCC): +7V; (3)input voltage range analog: V-20VVINV++20V; (4)input voltage range digital -0.3VIN+7V; (5)storage temperature range -65 TO 160°C; (6)lead temperature (soldering 10 seconds): 300°C; (7)output short-circuit duration: continuous to ground; (8)junction temperature 175°C; (9)power dissipation: 1W(Stresses above those listed under Mbsolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only an functional operation of the device at these or any other conditions above those indicated in the operational sections ol the specification is no implied. Exposure to absolute Maximum ratings conditions lor extended periods may allect the device reliability.).