LTC1040CN Linear Technology, LTC1040CN Datasheet - Page 9

• Manufacturer Part Number: LTC1040CN
• Description: IC COMPARATOR LOW PWR DUAL 18DIP
• Manufacturer: Linear Technology
• Series: LTCMOS™r
• Type: General Purposer

Specifications of LTC1040CN

• Number Of Elements: 2
• Output Type: CMOS, TTL
• Voltage - Supply: 2.8 V ~ 16 V, ±2.8 V ~ 8 V
• Mounting Type: Through Hole
• Package / Case: 18-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL APPLICATIO S
V
IN
V
V
U
L
Window Comparator with Independent Window Limits and
†
*
THERMISTOR # 44007
YELLOW SPRINGS INSTRUMENT CO., INC.
HYSTERESIS = 5V •
Fully Floating Differential Input
–
–
–
–
+
+
+
+
COMP A
COMP B
20M
82k
= 20mV
LTC1040
COOL
HEAT
28 C
27 C
SEPARATION
U
ADJUST
†
4.32k
6.81k
TEMP
Complete Heating/Cooling Automatic Thermostat
5k
SEPARATION
4.99k
(20mV)
A
V
A+B = “1” WHEN
V
B
V
OUT
IN
U
OUT
IN
> V
< V
82k*
82k*
V
= “1” WHEN
= “1” WHEN
IN
U
L
LTC1040 • TA05
V
L
20M
14
13
12
11
TIME
5
6
7
8
+
–
+
–
+
–
+
–
COMP A
COMP B
9
17
Hysteresis Comparator with Fully Floating Differential Input
20M
LTC1040
*
OUT = “0” WHEN V
OUT = “1” WHEN V
TO CENTER HYSTERESIS ABOUT V
HYSTERESIS/2 (10mV)
5V AT 0.85 A
V
TRIP
V
IN
10
HYSTERESIS
HYSTERESIS
18
10k
R1
4
3
15
16
AIRCONDITIONING ON
AIRCONDITIONING OFF
HEATER OFF
HEATER ON
IN
IN
> V
< V1 =
*
U
10M
=
LTC1040 • TA03
V
0.1 F
V
+
–
+
–
R1 + R2
2.49M
TRIP
1/2 LTC1040
TRIP
R2
LTC1040 • TA04
HEAT
COOL
R1 + R2
V
R2 + (5V) R1
TRIP ,
R2
+
= 0.996V
FORCE THIS INPUT TO
TRIP
= 0.996 V
LTC1040
OUT
TRIP
LTC1040 • TA06
+ 20mV
1040fa
9