9
LTC1440/LTC1441/LTC1442
144012fd
PIN FUNCTIONS
UUU
V
–
V
+
OUT A
LTC14411
2
3
4
8
7
6
5
IN A
+
IN A
–
IN B
+
IN B
–
OUT B
1440/1/2 PD
–
+
A
–
+
B
V
–
V
–
V
+
OUT A
LTC1442
1
2
3
4
8
7
6
5
IN A
+
IN B
–
REF
HYST
OUT B
1
2
3
4
8
7
6
5
IN
+
IN
–
HYST
REF
V
+
OUT
–
+
V
–
GND
LTC1440
–
+
–
+
A
B
LTC1440
GND (Pin 1): Ground. Connect to V
–
for single supply
operation.
V
–
(Pin 2): Negative Supply. Connect to ground for single
supply operation. Potential should be more negative than
GND.
IN
+
(Pin 3): Noninverting Comparator Input. Input com-
mon mode range from V
–
to V
+
–1.3V. Input current
typically 10pA at 25°C.
IN
–
(Pin 4): Inverting Comparator Input. Input common
mode range from V
–
to V
+
–1.3V. Input current typically
10pA at 25°C.
HYST (Pin 5): Hysteresis Input. Connect to REF if not
used. Input voltage range is from V
REF
to V
REF
– 50mV.
REF (Pin 6): Reference Output. 1.182V with respect
to V
–
. Can source up to 200µA and sink 15µA at 25°C.
Drive 0.01µF bypass capacitor without oscillation.
V
+
(Pin 7): Positive Supply. 2V to 11V.
OUT (Pin 8): Comparator CMOS Output. Swings from
GND to V
+
. Output can source up to 40mA and sink 5mA.
LTC1441
OUT A (Pin 1): Comparator A CMOS Output. Swings from
V
–
to V
+
. Output can source up to 40mA and sink 5mA.
V
–
(Pin 2): Negative Supply.
IN A
+
(Pin 3): Noninverting Input of Comparator A. Input
common mode range from V
–
to V
+
–1.3V. Input current
typically 10pA at 25°C.
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 B
–
(Pin 5): 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 6): Noninverting Input of Comparator B. Input
common mode range from V
–
to V
+
–1.3V. Input current
typically 10pA at 25°C.
V
+
(Pin 7): Positive Supply. 2V to 11V.
OUT B (Pin 8): Comparator B CMOS Output. Swings from
V
–
to V
+
. Output can source up to 40mA and sink 5mA.
LTC1442
OUT A (Pin 1): Comparator A CMOS Output. Swings from
V
–
to V
+
. Output can source up to 40mA and sink 5mA.
V
–
(Pin 2): Negative Supply.
IN A
+
(Pin 3): 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 4): Inverting Input of Comparator B. Input
common mode range from V
–
to V
+
–1.3V. Input current
typically 10pA at 25°C.
HYST (Pin 5): Hysteresis Input. Connect to REF if not
used. Input voltage range is from V
REF
to V
REF
– 50mV.
REF (Pin 6): Reference Output. 1.182V with respect
to V
–
. Can source up to 200µA and sink 15µA at 25°C.
Drive 0.01µF bypass capacitor without oscillation.
V
+
(Pin 7): Positive Supply. 2V to 11V.
OUT B (Pin 8): Comparator B CMOS Output. Swings from
V
–
to V
+
. Output can source up to 40mA and sink 5mA.
