DESCRIPTION
The LTC1042 is a monolithic CMOS window comparator manufactured using Linear Technology’s enhanced LTCMOS™ silicon gate process. Two high impedance voltage inputs, CENTER and WIDTH/2, define the middle and width of the comparison window. Whenever the input voltage, VIN, is inside the window the WITHIN WINDOW output is high. The ABOVE WINDOW output is high whenever VIN is above the window. By interchanging VIN and CENTER, the ABOVE WINDOW output becomes BELOW WINDOW and is high if VIN is below the window.

FEATURES
■ Micropower 1.5µW (1 Sample/Second)
■ Wide Supply Range — +2.8V to +16V
■ High Accuracy
   Center Error ±1mV Max
   Width Error ±0.15% Max
■ Wide Input Voltage Range
   V+ to Ground
■ TTL Outputs with 5V Supply
■ Two Independent Ground-Referred Control Inputs
■ Small Size 8-Pin MiniDIP

APPLICATIONS
■ Fault Detectors
■ Go/No-Go Testing
■ Microprocessor Power Supply Monitor