LTC1440/LTC1441/LTC1442 UUUPIN FUNCTIONS 1 LTC1440 OUT 8 1 OUT A LTC1441 OUT B 8 1 OUT A LTC1442 OUT B 8 GND 2 V – 7 2 7 2 7 V+ V – V + V – A B V + A B + + – – + + – – + 3 IN A+ REF 6 3 IN+ – REF 6 3 IN A+ IN B+ 6 HYST 5 4 IN– 5 4 IN A– IN B– 5 HYST 4 V – IN B– 1440/1/2 PD LTC1440IN B – (Pin 5): Inverting Input of Comparator B. Input common mode range from V – to V + –1.3V. Input current GND (Pin 1): Ground. Connect to V – for single supply typically 10pA at 25°C. operation. IN B + (Pin 6): Noninverting Input of Comparator B. Input V – (Pin 2): Negative Supply. Connect to ground for single common mode range from V – to V + –1.3V. Input current supply operation. Potential should be more negative than typically 10pA at 25°C. GND. V + (Pin 7): Positive Supply. 2V to 11V. IN + (Pin 3): Noninverting Comparator Input. Input com- mon mode range from V – to V + –1.3V. Input current OUT B (Pin 8): Comparator B CMOS Output. Swings from typically 10pA at 25°C. V – to V +. Output can source up to 40mA and sink 5mA. IN – (Pin 4): Inverting Comparator Input. Input common LTC1442 mode range from V – to V + –1.3V. Input current typically 10pA at 25°C. OUT A (Pin 1): Comparator A CMOS Output. Swings from V – to V +. Output can source up to 40mA and sink 5mA. HYST (Pin 5): Hysteresis Input. Connect to REF if not used. Input voltage range is from VREF to VREF – 50mV. V – (Pin 2): Negative Supply. REF (Pin 6): Reference Output. 1.182V with respect IN A+ (Pin 3): Noninverting Input of Comparator A. Input to V –. Can source up to 200µA and sink 15µA at 25°C. common mode range from V – to V + –1.3V. Input current Drive 0.01µF bypass capacitor without oscillation. typically 10pA at 25°C. V + (Pin 7): Positive Supply. 2V to 11V. IN B– (Pin 4): Inverting Input of Comparator B. Input common mode range from V – to V + –1.3V. Input current OUT (Pin 8): Comparator CMOS Output. Swings from typically 10pA at 25°C. GND to V +. Output can source up to 40mA and sink 5mA. HYST (Pin 5): Hysteresis Input. Connect to REF if not LTC1441 used. Input voltage range is from VREF to VREF – 50mV. OUT A (Pin 1): Comparator A CMOS Output. Swings from REF (Pin 6): Reference Output. 1.182V with respect V – to V +. Output can source up to 40mA and sink 5mA. to V –. Can source up to 200µA and sink 15µA at 25°C. Drive 0.01µF bypass capacitor without oscillation. V – (Pin 2): Negative Supply. V + (Pin 7): Positive Supply. 2V to 11V. IN A+ (Pin 3): Noninverting Input of Comparator A. Input common mode range from V – to V + –1.3V. Input current OUT B (Pin 8): Comparator B CMOS Output. Swings from typically 10pA at 25°C. V – to V +. Output can source up to 40mA and sink 5mA. IN A– (Pin 4): Inverting Input of Comparator A. Input common mode range from V – to V + –1.3V. Input current typically 10pA at 25°C. 144012fd 9