LTC1445CS datasheet(6/12 Pages) LINER

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LTC1443/LTC1444/LTC1445

–

OUT B

OUT A

V+

IN A–

IN A+

IN B –

IN B+

REF

OUT C

OUT D

GND

IN D+

IN D–

IN C+

IN C–

V–

–

LTC1443

1.182V

1443/44/45 • PD01

–

OUT B

OUT A

V+

IN A–

IN A+

IN B –

IN B+

REF

OUT C

OUT D

HYST

IN D+

IN D–

IN C+

IN C–

V–

–

LTC1444/LTC1445

1.221V

1443/44/45 • PD02

OUT B (Pin 1): Comparator B Output. (Open-drain output

for LTC1444). Output can source up to 40mA (LTC1443,

LTC1445) and sink 5mA.

OUT A (Pin 2): Comparator A Output. (Open-drain output

for LTC1444). Output can source up to 40mA (LTC1443,

LTC1445) and sink 5mA.

V+ (Pin 3): Positive Supply.

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.

IN A + (Pin 5): Noninverting Input of Comparator A. Input

common mode range from V – to V + – 1.3V. Input current

typically 10pA at 25

°C.

IN B – (Pin 6): Inverting Input of Comparator B. Input

common mode range from V – to V + – 1.3V. Input current

typically 10pA at 25

°C.

IN B + (Pin 7): Noninverting Input of Comparator B. Input

common mode range from V – to V + – 1.3V. Input current

typically 10pA at 25

°C.

REF (Pin 8): Reference Output. With respect to V –. Can

source up to 200

µA and sink 15µA at 25°C. Drive 0.01µF

bypass capacitor without oscillation.

V – (Pin 9): Negative Supply. Connect to ground for single

supply operation on LTC1443.

IN C – (Pin10): Inverting Input of Comparator C. Input

common mode range from V – to V + – 1.3V. Input current

typically 10pA at 25

°C.

IN C + (Pin 11): Noninverting Input of Comparator C. Input

common mode range from V – to V + – 1.3V. Input current

typically 10pA at 25

°C.

IN D – (Pin 12): Inverting Input of Comparator D. Input

common mode range from V – to V + – 1.3V. Input current

typically 10pA at 25

°C.

IN D + (Pin 13): Noninverting Input of Comparator D. Input

common mode range from V – to V + – 1.3V. Input current

typically 10pA at 25

°C.

GND (Pin 14): LTC1443 Ground. Connect to V– for single

supply operation.

HYST (Pin 14): LTC1444/LTC1445 Hysteresis Input. Con-

nect to REF if not used. Input voltage range is from VREF

to VREF – 50mV.

PI FU CTIO S

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