Datasheet LTC1841, LTC1842, LTC1843 (Analog Devices) - 6

LTC1841/LTC1842/LTC1843
U U U PIN FUNCTIONS OUT A (Pin 1):
Comparator A Open-Drain Output. Output 1 OUT A LTC1841 OUT B 8 can typically sink greater than 20mA. 2
V – (Pin 2):
Negative Supply. 7 V – V + A B + – – +
IN A+ (Pin 3)
: Noninverting Input of Comparator A. Input 3 IN A+ IN B+ 6 common mode range extends from V – to V + – 1.3V. Input current is typically 10pA at 25°C. 4 IN A– IN B– 5
IN A – (Pin 4) (LTC1841):
Inverting Input of Comparator A. 1841 PD Input common mode range extends from V – to V + – 1.3V. Input current is typically 10pA at 25°C.
IN B+ (Pin 4) (LTC1842)
: Noninverting Input of Compara- 1 OUT A LTC1842 OUT B 8 tor B. Input common mode range extends from V – to V + – 1.3V. Input current is typically 10pA at 25°C. 2 7 V – A B V +
IN B– (Pin 4) (LTC1843):
Inverting Input of Comparator B. + – + – Input common mode range extends from V – to V + – 1.3V. 3 IN A+ REF 6 Input current is typically 10pA at 25°C. HYST 5
IN B– (Pin 5) (LTC1841):
Inverting Input of Comparator B. 4 V – IN B+ Input common mode range extends from V – to V + – 1.3V. 1842 PD Input current is typically 10pA at 25°C.
HYST (Pin 5) (LTC1842/LTC1843):
Hysteresis Input. Connect to REF if not used. Input voltage range is from VREF to VREF – 50mV. 1 OUT A LTC1843 OUT B 8
IN B+ (Pin 6) (LTC1841):
Noninverting Input of Compara- 2 7 tor B. Input common mode range extends from V – to V – A B V + V + – 1.3V. Input current is typically 10pA at 25°C. + – – + 3 IN A+ REF 6
REF (Pin 6) (LTC1842/LTC1843):
Reference Output. 1.182V with respect to V –. Can typically source greater HYST 5 than 1mA and sink 10µA at 25°C. Can drive 0.01µF bypass 4 V – IN B– capacitor without oscillation. 1843 PD
V + (Pin 7) (LTC1841):
Positive Supply. 2V to 11V.
V + (Pin 7) (LTC1842/LTC1843):
Positive Supply. 2.5V to 11V.
OUT B (Pin 8):
Comparator B Open-Drain Output. Output can typically sink greater than 20mA. 6