FEATURES
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LTC6101/LTC6101HV
High Voltage,
High-Side Current Sense
Amplifier in SOT-23
DESCRIPTION
The LTC
®
6101/LTC6101HV are versatile, high voltage, high
side current sense amplifiers. Design flexibility is provided
by the excellent device characteristics; 300μV Max offset
and only 375μA (typical at 60V) of current consumption.
The LTC6101 operates on supplies from 4V to 60V and
LTC6101HV operates on supplies from 5V to 100V.
The LTC6101 monitors current via the voltage across an
external sense resistor (shunt resistor). Internal circuitry
converts input voltage to output current, allowing for a
small sense signal on a high common mode voltage to
be translated into a ground referenced signal. Low DC
offset allows the use of a small shunt resistor and large
gain-setting resistors. As a result, power loss in the shunt
is reduced.
The wide operating supply range and high accuracy make
the LTC6101 ideal for a large array of applications from
automotive to industrial and power management. A maxi-
mum input sense voltage of 500mV allows a wide range
of currents to be monitored. The fast response makes the
LTC6101 the perfect choice for load current warnings and
shutoff protection control. With very low supply current,
the LTC6101 is suitable for power sensitive applications.
The LTC6101 is available in 5-lead SOT-23 and 8-lead
MSOP packages.
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Supply Range:
5V to 100V, 105V Absolute Maximum (LTC6101HV)
4V to 60V, 70V Absolute Maximum (LTC6101)
Low Offset Voltage: 300μV Max
Fast Response: 1μs Response Time (0V to 2.5V on
a 5V Output Step)
Gain Configurable with 2 Resistors
Low Input Bias Current: 170nA Max
PSRR: 118dB Min
Output Current: 1mA Max
Low Supply Current: 250μA, V
S
= 12V
Specified Temperature Range: –40°C to 125°C
Operating Temperature Range: –55°C to 125°C
Low Profile (1mm) SOT-23 (ThinSOT™) Package
APPLICATIONS
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Current Shunt Measurement
Battery Monitoring
Remote Sensing
Power Management
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
TYPICAL APPLICATION
16-Bit Resolution Unidirectional Output into LTC2433 ADC
I
LOAD
–
+IN
V
SENSE
Step Response
V
SENSE
–
ΔV
SENSE
–
= 100mV
5.5V
5V
+
R
IN
100Ω
–IN
5V TO 105V
L
O
A
D
V
–
+ –
V
+
5V
1μF
LTC6101HV
OUT
V
OUT
LTC2433-1
TO μP
V
OUT
T
A
= 25°C
V
+
= 12V
R
IN
= 100
R
OUT
= 5k
V
SENSE
+
= V
+
I
OUT
= 100μA
R
OUT
4.99k
0.5V
0V
I
OUT
= 0
500ns/DIV
6101 TA01
6101 TA01b
R
OUT
V
OUT
=
• V
SENSE
= 49.9V
SENSE
R
IN
6101fh
1
LTC6101/LTC6101HV
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V
+
to V
–
)
LTC6101............................................................... 70V
LTC6101HV ........................................................ 105V
Minimum Input Voltage (–IN Pin) .................... (V
+
– 4V)
Maximum Output Voltage (Out Pin) ............................9V
Input Current....................................................... ±10mA
Output Short-Circuit Duration (to V
–
).............. Indefinite
Operating Temperature Range
LTC6101C/LTC6101HVC .......................– 40°C to 85°C
LTC6101I/LTC6101HVI ......................... –40°C to 85°C
LTC6101H/LTC6101HVH ................... –55°C to 125°C
Specified Temperature Range (Note 2)
LTC6101C/LTC6101HVC ........................... 0°C to 70°C
LTC6101I/LTC6101HVI ......................... –40°C to 85°C
LTC6101H/LTC6101HVH ................... –40°C to 125°C
Storage Temperature Range.................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................. 300°C
PIN CONFIGURATION
TOP VIEW
–IN
NC
NC
OUT
1
2
3
4
8
7
6
5
+IN
V
+
NC
V
–
OUT 1
V
–
2
–IN 3
TOP VIEW
5 V
+
4 +IN
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 300°C/ W
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 250°C/ W
ORDER INFORMATION
LEAD FREE FINISH
LTC6101ACMS8#PBF
LTC6101AIMS8#PBF
LTC6101AHMS8#PBF
LTC6101HVACMS8#PBF
LTC6101HVAIMS8#PBF
LTC6101HVAHMS8#PBF
TAPE AND REEL
LTC6101ACMS8#TRPBF
LTC6101AIMS8#TRPBF
LTC6101AHMS8#TRPBF
LTC6101HVACMS8#TRPBF
LTC6101HVAIMS8#TRPBF
LTC6101HVAHMS8#TRPBF
PART MARKING*
LTBSB
LTBSB
LTBSB
LTBSX
LTBSX
LTBSX
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
6101fh
2
LTC6101/LTC6101HV
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI)
LTC6101ACS5#TRMPBF
LTC6101AIS5#TRMPBF
LTC6101AHS5#TRMPBF
LTC6101BCS5#TRMPBF
LTC6101BIS5#TRMPBF
LTC6101BHS5#TRMPBF
LTC6101CCS5#TRMPBF
LTC6101CIS5#TRMPBF
LTC6101CHS5#TRMPBF
LTC6101HVACS5#TRMPBF
LTC6101HVAIS5#TRMPBF
LTC6101HVAHS5#TRMPBF
LTC6101HVBCS5#TRMPBF
LTC6101HVBIS5#TRMPBF
LTC6101HVBHS5#TRMPBF
LTC6101HVCCS5#TRMPBF
LTC6101HVCIS5#TRMPBF
TAPE AND REEL
LTC6101ACS5#TRPBF
LTC6101AIS5#TRPBF
LTC6101AHS5#TRPBF
LTC6101BCS5#TRPBF
LTC6101BIS5#TRPBF
LTC6101BHS5#TRPBF
LTC6101CCS5#TRPBF
LTC6101CIS5#TRPBF
LTC6101CHS5#TRPBF
LTC6101HVACS5#TRPBF
LTC6101HVAIS5#TRPBF
LTC6101HVAHS5#TRPBF
LTC6101HVBCS5#TRPBF
LTC6101HVBIS5#TRPBF
LTC6101HVBHS5#TRPBF
LTC6101HVCCS5#TRPBF
LTC6101HVCIS5#TRPBF
PART MARKING*
LTBND
LTBND
LTBND
LTBND
LTBND
LTBND
LTBND
LTBND
LTBND
LTBSZ
LTBSZ
LTBSZ
LTBSZ
LTBSZ
LTBSZ
LTBSZ
LTBSZ
PACKAGE DESCRIPTION
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
LTC6101HVCHS5#TRMPBF LTC6101HVCHS5#TRPBF
LTBSZ
5-Lead Plastic TSOT-23
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/
6101fh
3
LTC6101/LTC6101HV
(LTC6101) The
●
denotes the specifications which apply over the full
specified temperature range, otherwise specifications are at T
A
= 25°C, R
IN
= 100Ω, R
OUT
= 10k, V
SENSE+
= V
+
(see Figure 1 for
details), 4V ≤ V
S
≤ 60V unless otherwise noted.
SYMBOL
V
S
V
OS
PARAMETER
Supply Voltage Range
Input Offset Voltage
V
SENSE
= 5mV, Gain = 100, LTC6101A
V
SENSE
= 5mV, Gain = 100, LTC6101AC, LTC6101AI
V
SENSE
= 5mV, Gain = 100, LTC6101AH
V
SENSE
= 5mV, Gain = 100, LTC6101B
V
SENSE
= 5mV, Gain = 100, LTC6101C
ΔV
OS
/ΔT
Input Offset Voltage Drift
V
SENSE
= 5mV, LTC6101A
V
SENSE
= 5mV, LTC6101B
V
SENSE
= 5mV, LTC6101C
R
IN
= 1M
R
IN
= 1M
V
OS
within Specification, R
IN
= 1k (Note 3)
V
S
= 6V to 60V, V
SENSE
= 5mV, Gain = 100
V
S
= 4V to 60V, V
SENSE
= 5mV, Gain = 100
V
OUT
Maximum Output Voltage
12V ≤ V
S
≤ 60V, V
SENSE
= 88mV
V
S
= 6V, V
SENSE
= 330mV, R
IN
= 1k, R
OUT
= 10k
V
S
= 4V, V
SENSE
= 550mV, R
IN
= 1k, R
OUT
= 2k
V
SENSE
= 0V, Gain = 100, LTC6101A
V
SENSE
= 0V, Gain = 100, LTC6101AC, LTC6101AI
V
SENSE
= 0V, Gain = 100, LTC6101AH
V
SENSE
= 0V, Gain = 100, LTC6101B
V
SENSE
= 0V, Gain = 100, LTC6101C
I
OUT
t
r
BW
I
S
Maximum Output Current
Input Step Response
(to 2.5V on a 5V Output Step)
Signal Bandwidth
Supply Current
6V ≤ V
S
≤ 60V, R
OUT
= 2k, V
SENSE
= 110mV, Gain = 20
V
S
= 4V, V
SENSE
= 550mV, Gain = 2, R
OUT
= 2k
ΔV
SENSE
= 100mV Transient, 6V ≤ V
S
≤ 60V, Gain = 50
V
S
= 4V
I
OUT
= 200μA, R
IN
= 100, R
OUT
= 5k
I
OUT
= 1mA, R
IN
= 100, R
OUT
= 5k
V
S
= 4V, I
OUT
= 0, R
IN
= 1M
V
S
= 6V, I
OUT
= 0, R
IN
= 1M
V
S
= 12V, I
OUT
= 0, R
IN
= 1M
V
S
= 60V, I
OUT
= 0, R
IN
= 1M
LTC6101AI, LTC6101AC, LTC6101BI, LTC6101BC,
LTC6101CI, LTC6101CC
LTC6101AH, LTC6101BH, LTC6101CH
●
ELECTRICAL CHARACTERISTICS
CONDITIONS
MIN
●
●
●
TYP
±85
MAX
60
±300
±450
±535
±450
±810
800
1200
UNITS
V
μV
μV
μV
μV
μV
μV
μV
μV/°C
μV/°C
μV/°C
4
±150
●
±400
●
●
●
●
●
●
●
●
●
●
●
●
●
●
±1
±3
±5
100
±2
500
118
115
110
105
8
3
1
0
30
45
53.5
45
81
150
250
140
133
170
245
±15
I
B
I
OS
V
SENSE(MAX)
PSRR
Input Bias Current
Input Offset Current
Input Sense Voltage Full Scale
Power Supply Rejection Ratio
nA
nA
nA
mV
dB
dB
dB
dB
V
V
V
mV
mV
mV
mV
mV
mV
mV
mA
mA
V
OUT (0)
Minimum Output Voltage
0
●
0
●
●
●
1
0.5
1
1.5
140
200
220
240
450
475
475
525
500
590
640
690
720
μs
μs
kHz
kHz
μA
μA
μA
μA
μA
μA
μA
μA
μA
●
250
●
375
●
●
6101fh
4
LTC6101/LTC6101HV
(LTC6101HV) The
●
denotes the specifications which apply over the full
specified temperature range, otherwise specifications are at T
A
= 25°C, R
IN
= 100Ω, R
OUT
= 10k, V
SENSE+
= V
+
(see Figure 1 for
details), 5V ≤ V
S
≤ 100V unless otherwise noted.
SYMBOL
V
S
V
OS
PARAMETER
Supply Voltage Range
Input Offset Voltage
V
SENSE
= 5mV, Gain = 100, LTC6101HVA
V
SENSE
= 5mV, Gain = 100, LTC6101HVAC, LTC6101HVAI
V
SENSE
= 5mV, Gain = 100, LTC6101HVAH
V
SENSE
= 5mV, Gain = 100, LTC6101HVB
V
SENSE
= 5mV, Gain = 100, LTC6101HVC
ΔV
OS
/ΔT
Input Offset Voltage Drift
V
SENSE
= 5mV, LTC6101HVA
V
SENSE
= 5mV, LTC6101HVB
V
SENSE
= 5mV, LTC6101HVC
R
IN
= 1M
R
IN
= 1M
V
OS
within Specification, R
IN
= 1k (Note 3)
V
S
= 6V to 100V, V
SENSE
= 5mV, Gain = 100
V
S
= 5V to 100V, V
SENSE
= 5mV, Gain = 100
V
OUT
V
OUT (0)
Maximum Output Voltage
Minimum Output Voltage
12V ≤ V
S
≤ 100V, V
SENSE
= 88mV
V
S
= 5V, V
SENSE
= 330mV, R
IN
= 1k, R
OUT
= 10k
V
SENSE
= 0V, Gain = 100, LTC6101HVA
V
SENSE
= 0V, Gain = 100, LTC6101HVAC, LTC6101HVAI
V
SENSE
= 0V, Gain = 100, LTC6101HVAH
V
SENSE
= 0V, Gain = 100, LTC6101HVB
V
SENSE
= 0V, Gain = 100, LTC6101HVC
I
OUT
t
r
BW
I
S
Maximum Output Current
Input Step Response
(to 2.5V on a 5V Output Step)
Signal Bandwidth
Supply Current
5V ≤ V
S
≤ 100V, R
OUT
= 2k, V
SENSE
= 110mV, Gain = 20
ΔV
SENSE
= 100mV Transient, 6V ≤ V
S
≤ 100V, Gain = 50
V
S
= 5V
I
OUT
= 200μA, R
IN
= 100, R
OUT
= 5k
I
OUT
= 1mA, R
IN
= 100, R
OUT
= 5k
V
S
= 5V, I
OUT
= 0, R
IN
= 1M
V
S
= 6V, I
OUT
= 0, R
IN
= 1M
V
S
= 12V, I
OUT
= 0, R
IN
= 1M
V
S
= 60V, I
OUT
= 0, R
IN
= 1M
LTC6101HVI, LTC6101HVC
LTC6101HVH
V
S
= 100V, I
OUT
= 0, R
IN
= 1M
LTC6101HVAI, LTC6101HVAC, LTC6101HVBI,
LTC6101HVBC, LTC6101HVCI, LTC6101HVCC
LTC6101HVAH, LTC6101HVBH, LTC6101HVCH
●
ELECTRICAL CHARACTERISTICS
CONDITIONS
MIN
●
●
●
TYP
±85
MAX
100
±300
±450
±535
±450
±810
800
1200
UNITS
V
μV
μV
μV
μV
μV
μV
μV
μV/°C
μV/°C
μV/°C
5
±150
●
±400
●
●
●
●
●
●
●
●
●
●
●
●
●
±1
±3
±5
100
±2
500
118
115
110
105
8
3
0
30
45
53.5
45
81
150
250
140
133
170
245
±15
I
B
I
OS
V
SENSE(MAX)
PSRR
Input Bias Current
Input Offset Current
Input Sense Voltage Full Scale
Power Supply Rejection Ratio
nA
nA
nA
mV
dB
dB
dB
dB
V
V
mV
mV
mV
mV
mV
mV
mV
mA
μs
μs
kHz
kHz
0
●
0
●
●
1
1
1.5
140
200
200
220
450
475
475
525
500
590
640
690
720
640
690
720
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
6101fh
●
230
●
350
●
●
350
●
●
5
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