FeaTures
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LT6700/LT6700HV
Micropower, Low Voltage,
Dual Comparator with
400mV Reference
DescripTion
The LT
®
6700/LT6700HV combine two micropower, low
voltage comparators with a 400mV reference in a 6-lead
SOT-23 or tiny DFN package. Operating with supplies from
1.4V up to 18V, these devices draw only 6.5µA, making
them ideal for low voltage system monitoring. Hysteresis
is included in the comparators, easing design requirements
to insure stable output operation.
The comparators each have one input available externally;
the other inputs are connected internally to the reference.
The comparator outputs are open collector and the output
load can be referred to any voltage up to 18V (36V for
LT6700HV), independent of supply voltage. The output
stage sinking capability is guaranteed to be greater than
5mA over temperature.
The three versions of this part differ by the polar-
ity of the available comparator inputs. The LT6700-1/
LT6700HV-1 has one inverting input and one noninvert-
ing input, making it suitable for use as a window com-
parator. The LT6700-2/LT6700HV-2 has two inverting
inputs and the LT6700-3/LT6700HV-3 has two nonin-
verting inputs. All versions are offered in commercial,
industrial and automotive temperature ranges.
L,
LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top are registered
trademarks and ThinSOT and PowerPath are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
n
Internal 400mV Reference
Total Threshold Error: ±1.25% Max at 25°C
Inputs and Outputs Operate to 36V
Wide Supply Range: 1.4V to 18V
Specified for –55°C to 125°C Temperature Range
Low Quiescent Current: 6.5µA Typ at 5V
Internal Hysteresis: 6.5mV Typ
Low Input Bias Current: ±10nA Max
Over-The-Top
®
Input also Includes Ground
Open-Collector Outputs Allow Level Translation
Choice of Input Polarities: LT6700-1/LT6700-2/
LT6700-3/LT6700HV-1/LT6700HV-2/LT6700HV-3
Available in Low Profile (1mm) SOT-23 (ThinSOT™)
and 2mm
×
3mm DFN Packages
applicaTions
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Battery-Powered System Monitoring
Threshold Detectors
Window Comparators
Relay Driving
Industrial Control Systems
Handheld Instruments
Automotive Monitor and Controls
Typical applicaTion
Micropower Battery Monitor
1M
LT6700-3
1M
COMP B
THRESHOLD VOLTAGE (mV)
V
BATT
> 1.6V
63.4k
1M
V
BATT
1.4V (MIN)
3V (NOM)
Comparator Thresholds
vs Temperature
406
404
402
400
398
396
394
TWO TYPICAL PARTS
392 COMP A AND B
V
S
= 5V
390
–60 –40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
6700123 TA02
+
0.1µF
#1A
#1B
#2A
#2B
RISING INPUT
ALKALINE
AA CELLS
+
+
–
V
R
= 400mV
REFERENCE
V
S
FALLING INPUT
–
+
261k
COMP A
V
BATT
> 2V
MONITOR CONSUMES ~10µA
HYSTERESIS IS APPROXIMATELY
2% OF TRIP VOLTAGE
6700123 TA01
6700123fg
LT6700/LT6700HV
absoluTe MaxiMuM raTings
(Note 1)
Total Supply Voltage (V
S
to GND) ..........................18.5V
Input Voltage (+IN, –IN)
LT6700 (Note 3) .......................... 18.5V to (GND – 0.3V)
LT6700HV (Note 3) ........................ 40V to (GND – 0.3V)
LT6700 Output Voltage (OUT) ..... 18.5V to (GND – 0.3V)
LT6700HV Output Voltage (OUT) ... 40V to (GND – 0.3V)
Output Short-Circuit Duration (Note 2) ............ Indefinite
Input Current (Note 3)..........................................–10mA
Operating Temperature Range (Note 4)
LT6700CS6/LT6700HVCS6/
LT6700CDCB-1/-2/-3 ...........................– 40°C to 85°C
LT6700IS6/LT6700HVIS6/
LT6700IDCB-1/-2/-3 ............................ –40°C to 85°C
LT6700HS6/LT6700HVHS6/
LT6700HDCB-1/-2/-3 ........................ –40°C to 125°C
Specified Temperature Range (Note 5)
LT6700CS6/LT6700HVCS6/
LT6700CDCB-1/-2/-3 .............................. 0°C to 70°C
LT6700IS6/LT6700HVIS6/
LT6700IDCB-1/-2/-3 ............................ –40°C to 85°C
LT6700HS6/LT6700HVHS6/
LT6700HDCB-1/-2/-3 ....................... –40°C to 125°C
LT6700MPDCB-1/-2/-3 .................... –55°C to 125°C
Maximum Junction Temperature
S6 Package ....................................................... 150°C
DCB6 Package .................................................. 150°C
Storage Temperature Range
S6 Package ........................................ –65°C to 150°C
DCB6 Package ................................... –65°C to 150°C
Lead Temperature, TSOT-23 (Soldering, 10 sec)... 300°C
pin conFiguraTion
LT6700-1
LT6700HV-1
TOP VIEW
OUTA 1
GND 2
+INA 3
6 OUTB
5 V
S
4 –INB
OUTA 1
GND 2
–INA 3
LT6700-2
LT6700HV-2
TOP VIEW
6 OUTB
5 V
S
4 –INB
OUTA 1
GND 2
+INA 3
LT6700-3
LT6700HV-3
TOP VIEW
6 OUTB
5 V
S
4 +INB
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 230°C/W
LT6700-1
TOP VIEW
OUTA 1
OUTB 2
V
S
3
7
6 + INA
5 GND
4 –INB
LT6700-2
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 230°C/W
LT6700-3
TOP VIEW
OUTA 1
OUTB 2
V
S
3
7
6 – INA
5 GND
4 –INB
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 230°C/W
TOP VIEW
OUTA 1
OUTB 2
V
S
3
7
6 + INA
5 GND
4 +INB
DCB6 PACKAGE
6-LEAD (2mm
×
3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 64°C/W
SOLDERED EXPOSED PAD (PIN 7)
INTERNALLY CONNECTED TO GND
(PCB CONNECTION OPTIONAL)
DCB6 PACKAGE
6-LEAD (2mm
×
3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 64°C/W
SOLDERED EXPOSED PAD (PIN 7)
INTERNALLY CONNECTED TO GND
(PCB CONNECTION OPTIONAL)
DCB6 PACKAGE
6-LEAD (2mm
×
3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 64°C/W
SOLDERED EXPOSED PAD (PIN 7)
INTERNALLY CONNECTED TO GND
(PCB CONNECTION OPTIONAL)
6700123fg
LT6700/LT6700HV
orDer inForMaTion
Lead Free Finish
TAPE AND REEL (MINI)
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
–55°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
–55°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
–55°C to 125°C
LT6700CS6-1#TRMPBF
LT6700CS6-1#TRPBF
LTK7
6-Lead Plastic TSOT-23
LT6700HVCS6-1#TRMPBF
LT6700HVCS6-1#TRPBF
LTK7
6-Lead Plastic TSOT-23
LT6700IS6-1#TRMPBF
LT6700IS6-1#TRPBF
LTK7
6-Lead Plastic TSOT-23
LT6700HVIS6-1#TRMPBF
LT6700HVIS6-1#TRPBF
LTK7
6-Lead Plastic TSOT-23
LT6700HS6-1#TRMPBF
LT6700HS6-1#TRPBF
LTK7
6-Lead Plastic TSOT-23
LT6700HVHS6-1#TRMPBF
LT6700HVHS6-1#TRPBF
LTK7
6-Lead Plastic TSOT-23
LT6700CS6-2#TRMPBF
LT6700CS6-2#TRPBF
LTADL
6-Lead Plastic TSOT-23
LT6700HVCS6-2#TRMPBF
LT6700HVCS6-2#TRPBF
LTADL
6-Lead Plastic TSOT-23
LT6700IS6-2#TRMPBF
LT6700IS6-2#TRPBF
LTADL
6-Lead Plastic TSOT-23
LT6700HVIS6-2#TRMPBF
LT6700HVIS6-2#TRPBF
LTADL
6-Lead Plastic TSOT-23
LT6700HS6-2#TRMPBF
LT6700HS6-2#TRPBF
LTADL
6-Lead Plastic TSOT-23
LT6700HVHS6-2#TRMPBF
LT6700HVHS6-2#TRPBF
LTADL
6-Lead Plastic TSOT-23
LT6700CS6-3#TRMPBF
LT6700CS6-3#TRPBF
LTADM
6-Lead Plastic TSOT-23
LT6700HVCS6-3#TRMPBF
LT6700HVCS6-3#TRPBF
LTADM
6-Lead Plastic TSOT-23
LT6700IS6-3#TRMPBF
LT6700IS6-3#TRPBF
LTADM
6-Lead Plastic TSOT-23
LT6700HVIS6-3#TRMPBF
LT6700HVIS6-3#TRPBF
LTADM
6-Lead Plastic TSOT-23
LT6700HS6-3#TRMPBF
LT6700HS6-3#TRPBF
LTADM
6-Lead Plastic TSOT-23
LT6700HVHS6-3#TRMPBF
LT6700HVHS6-3#TRPBF
LTADM
6-Lead Plastic TSOT-23
LT6700CDCB-1#TRMPBF
LT6700CDCB-1#TRPBF
LBXW
6-Lead (2mm
×
3mm) Plastic DFN
LT6700IDCB-1#TRMPBF
LT6700IDCB-1#TRPBF
LBXW
6-Lead (2mm
×
3mm) Plastic DFN
LT6700HDCB-1#TRMPBF
LT6700HDCB-1#TRPBF
LBXW
6-Lead (2mm
×
3mm) Plastic DFN
LT6700MPDCB-1#TRMPBF LT6700MPDCB-1#TR
LDVS
6-Lead (2mm
×
3mm) Plastic DFN
LT6700CDCB-2#TRMPBF
LT6700CDCB-2#TRPBF
LBXX
6-Lead (2mm
×
3mm) Plastic DFN
LT6700IDCB-2#TRMPBF
LT6700IDCB-2#TRPBF
LBXX
6-Lead (2mm
×
3mm) Plastic DFN
LT6700HDCB-2#TRMPBF
LT6700HDCB-2#TRPBF
LBXX
6-Lead (2mm
×
3mm) Plastic DFN
LT6700MPDCB-2#TRMPBF LT6700MPDCB-2#TR
LDVT
6-Lead (2mm
×
3mm) Plastic DFN
LT6700CDCB-3#TRMPBF
LT6700CDCB-3#TRPBF
LBXY
6-Lead (2mm
×
3mm) Plastic DFN
LT6700IDCB-3#TRMPBF
LT6700IDCB-3#TRPBF
LBXY
6-Lead (2mm
×
3mm) Plastic DFN
LT6700HDCB-3#TRMPBF
LT6700HDCB-3#TRPBF
LBXY
6-Lead (2mm
×
3mm) Plastic DFN
LT6700MPDCB-3#TRMPBF LT6700MPDCB-3#TR
LDVV
6-Lead (2mm
×
3mm) Plastic DFN
TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
6700123fg
LT6700/LT6700HV
elecTrical characTerisTics
SYMBOL
V
TH(R)
PARAMETER
Rising Input Threshold Voltage (Note 6)
T
A
= 25°C, (LT6700-1/LT6700-2/LT6700-3) unless otherwise specified.
MIN
394
395
393
392
386
387
385
384
3.5
TYP
400
400
400
400
393.5
393.5
393.5
393.5
6.5
±0.01
±0.01
±4
55
60
70
0.01
0.01
18
29
2.2
0.22
MAX
406
405
407
408
401
400
402
403
9.5
±10
±10
±10
200
200
200
0.8
0.8
UNITS
mV
mV
mV
mV
mV
mV
mV
mV
mV
nA
nA
nA
mV
mV
mV
µA
µA
µs
µs
µs
µs
CONDITIONS
R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
V
S
= 1.4V, 5V, 12V, 18V, R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V, 18V, V
IN
= V
S
V
S
= 1.4V, V
IN
= 18V
V
S
= 1.4V, 18V, V
IN
= 0.1V
10mV Input Overdrive
V
S
= 1.4V, I
OUT
= 0.5mA
V
S
= 1.6V, I
OUT
= 3mA
V
S
= 5V, I
OUT
= 5mA
V
S
= 1.4V, 18V, V
OUT
= V
S
, V
IN
= 40mV Overdrive
V
S
= 1.4V, V
OUT
= 18V, V
IN
= 40mV Overdrive
V
S
= 5V, 10mV Input Overdrive, R
L
= 10k,
V
OL
= 400mV
V
S
= 5V, 10mV Input Overdrive, R
L
= 10k,
V
OH
= 0.9 • V
S
V
S
= 5V, 10mV Input Overdrive, R
L
= 10k
V
O
= (0.1 to 0.9) • V
S
V
S
= 5V, 10mV Input Overdrive, R
L
= 10k
V
O
= (0.1 to 0.9) • V
S
No Load Current
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
V
TH(F)
Falling Input Threshold Voltage (Note 6)
HYS
I
B
V
OL
HYS = V
TH(R)
– V
TH(F)
Input Bias Current
Output Low Voltage
I
OFF
t
PD(HL)
t
PD(LH)
t
r
t
f
I
S
Output Leakage Current
High-to-Low Propagation Delay
Low-to-High Propagation Delay
Output Rise Time
Output Fall Time
Supply Current
5.7
6.5
6.9
7.1
10.0
11.0
12.5
13.0
µA
µA
µA
µA
The
l
denotes the specifications which apply over the temperature range of 0°C ≤ T
A
≤ 70°C, (LT6700C-1/LT6700C-2/LT6700C-3) unless
otherwise specified (Notes 4, 5).
SYMBOL
V
TH(R)
PARAMETER
Rising Input Threshold Voltage (Note 6)
CONDITIONS
R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
l
l
l
l
l
l
l
l
MIN
391.0
392.5
390.0
389.0
383.5
384.5
382.5
381.5
TYP
MAX
409.0
407.5
410.0
411.0
403.5
402.5
404.5
405.5
UNITS
mV
mV
mV
mV
mV
mV
mV
mV
V
TH(F)
Falling Input Threshold Voltage (Note 6)
6700123fg
LT6700/LT6700HV
elecTrical characTerisTics
SYMBOL
HYS
I
B
V
OL
PARAMETER
HYS = V
TH(R)
– V
TH(F)
Input Bias Current
The
l
denotes the specifications which apply over the temperature range of 0°C ≤ T
A
≤ 70°C, (LT6700C-1/LT6700C-2/LT6700C-3) unless
otherwise specified (Notes 4, 5).
CONDITIONS
V
S
= 1.4V, 5V, 12V, 18V, R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V, 18V, V
IN
= V
S
V
S
= 1.4V, V
IN
= 18V
V
S
= 1.4V, 18V, V
IN
= 0.1V
10mV Input Overdrive
V
S
= 1.4V, I
OUT
= 0.5mA
V
S
= 1.6V, I
OUT
= 3mA
V
S
= 5V, I
OUT
= 5mA
V
S
= 1.4V, 18V, V
OUT
= V
S
, V
IN
= 40mV Overdrive
V
S
= 1.4V, V
OUT
= 18V, V
IN
= 40mV Overdrive
No Load Current
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
3
TYP
MAX
11
±15
±15
±15
250
250
250
1
1
13.0
14.0
15.5
16.0
UNITS
mV
nA
nA
nA
mV
mV
mV
µA
µA
µA
µA
µA
µA
Output Low Voltage
I
OFF
I
S
Output Leakage Current
Supply Current
The
l
denotes the specifications which apply over the temperature range of –40°C ≤ T
A
≤ 85°C, (LT6700I-1/LT6700I-2/LT6700I-3)
unless otherwise specified (Notes 4, 5).
SYMBOL
V
TH(R)
PARAMETER
Rising Input Threshold Voltage (Note 6)
CONDITIONS
R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
V
S
= 1.4V, 5V, 12V, 18V, R
L
= 100k, V
O
= 2V Swing
V
S
= 1.4V, 18V, V
IN
= V
S
V
S
= 1.4V, V
IN
= 18V
V
S
= 1.4V, 18V, V
IN
= 0.1V
10mV Input Overdrive
V
S
= 1.4V, I
OUT
= 0.1mA
V
S
= 1.6V, I
OUT
= 3mA
V
S
= 5V, I
OUT
= 5mA
V
S
= 1.4V, 18V, V
OUT
= V
S
, V
IN
= 40mV Overdrive
V
S
= 1.4V, V
OUT
= 18V, V
IN
= 40mV Overdrive
No Load Current
V
S
= 1.4V
V
S
= 5V
V
S
= 12V
V
S
= 18V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
390
392
389
388
382.5
383.5
381.5
380.5
2
TYP
MAX
410
408
411
412
404.5
403.5
405.5
406.5
11.5
±15
±15
±15
250
250
250
1
1
14.0
15.0
16.5
17.0
UNITS
mV
mV
mV
mV
mV
mV
mV
mV
mV
nA
nA
nA
mV
mV
mV
µA
µA
µA
µA
µA
µA
V
TH(F)
Falling Input Threshold Voltage (Note 6)
HYS
I
B
V
OL
HYS = V
TH(R)
– V
TH(F)
Input Bias Current
Output Low Voltage
I
OFF
I
S
Output Leakage Current
Supply Current
6700123fg
