SHC298A

The SHC298 and SHC298A are high-performance monolithic sample/hold amplifiers featuring high DC accuracy with fast acquisition times and a low droop rate. Dynamic performance and holding performance can be optimized with proper selection of the external holding capacitor. With a 1000pF holding capacitor,12-bit accuracy can be achieved with a 6ms acquisition time. Droop rates less than 5mV/min are possible with a 1F holding capacitor.

These sample/holds will operate over a wide supply voltage ranging from ±5V to ±18V with very little change in performance. A separate Offset Adjust pin is used to adjust the offset in either the Sample on the Hold modes. The fully differential logic inputs have low input current, and are compatible with TTL, 5V CMOS, and CMOS logic families.

The SHC298AM is available in a hermetically sealed 8-pin TO-99 package and is specified over a temperature range from 25°C to +85°C. The SHC298JP and SHC298JU are 8-pin plastic DIP and SOIC packaged parts specified over 0°C to +70°C.

The SHC298AJP, specified over 0°C to +70°C, is available in an 8-pin plastic DIP. The SHC298A grade features improved gain and offset error, improved drift over temperature, and faster acquisition time.

The SHC298 family is a price-performance bargain. It is well suited for use with several 12-bit A/D converters in data acquisition systems, data distribution systems, and analog delay circuits.