LTC1040 Datasheet | Linear Technology

Dual Micropower parator Features s Micropower 1.5µW (1 Sample/Second) s Power Supply Flexibility Single Supply 2.8V to 16V Split Supply ±2.8V to ±8V s Guaranteed Max Offset 0.75m V s Guaranteed Max Tracking Error Between Input Pairs ± 0.1% s Input mon Mode Range to Both Supply Rails s TTL/CMOS patible with ±5V or Single 5V Supply s Input Errors are Stable with Time and Temperature U APPLICATIO S s Battery-Powered Systems s Remote Sensing s Window parator s BANG-BANG Controllers DESCRIPTIO The LTC®1040 is a monolithic CMOS dual parator manufactured using Linear Technology’s enhanced LTCMOSTM silicon gate process. Extremely low operating power levels are achieved by internally switching the parator ON for short periods of time. The CMOS output logic holds the output information continuously while not consuming any power. In addition to switching power ON, a switched output is provided to drive external loads during the parator’s active time. This allows not only low parator power, but low total system power. Sampling is controlled by an external strobe input or an internal oscillator. The oscillator frequency is set by an external RC network. Each parator has a unique input structure, giving two differential inputs. The output of the parator will be high if the algebraic sum of the inputs is positive and low if the algebraic sum of the inputs is negative. , LTC and LT are registered trademarks of Linear Technology Corporation. LTCMOS™ is a trademark of Linear Technology Corporation. TYPICAL APPLICATIO Window parator with Symmetric Window Limits + - + P A - VC + - + P B ∆- AOUT = “1” WHEN VIN > VC + ∆ A + B = “1” WHEN VC - ∆ ≤ VIN ≤ VC + ∆ BOUT = “1” WHEN VIN < VC - ∆ - TA01 SUPPLY CURRENT, IS (µA) Typical LTC1040 Supply Current vs Sampling Frequency 1000 VS = ±5V 1 REXT = 10M 0.10 EXTERNALLY STROBED 0.01...