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LTC6103CMS8#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LTC6103
1
6103f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual High Voltage, High Side
Current Sense Amplifi er
The LTC
®
6103 is a versatile, high voltage, high side, dual
current sense amplifi er. The two internal amplifi ers are
independent except that they share the same V
–
terminal.
Design fl exibility is provided by the excellent device char-
acteristics: 450µV maximum offset, and only 275µA of
current consumption (typical at 12V) for each amplifi er.
The LTC6103 operates on supplies from 4V to 60V.
The LTC6103 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 al-
lows the use of a small shunt resistor and large gain-setting
resistors. As a result, power loss in the shunt is minimal.
The wide operating supply range and high accuracy make
the LTC6103 ideal for an extensive variety of applications
from automotive to industrial and power management.
The fast response makes the LTC6103 the perfect choice
for load current warnings and shutoff protection control.
With very low supply current, the LTC6103 is suitable for
power sensitive applications.
The LTC6103 is available in an 8-lead MSOP package.
Two 16-Bit Current Sense Channels Connected Directly to the LTC2436-1 ADC
■
Two Independent Current Sense Amplifi ers
■
Wide Supply Range: 4V to 60V, 70V Absolute
Maximum
■
Low Offset Voltage: 450µV Maximum
■
Fast Response: 1µs Response Time
■
Gain Confi gurable with External Resistors
■
Low Input Bias Current: 170nA Maximum
■
PSRR: 110dB Minimum (6V to 60V)
■
Output Current: 1mA Maximum
■
Low Supply Current: 275µA per Amplifi er, V
S
= 12V
■
Specifi ed for –40°C to 125°C Temperature Range
■
Available in an 8-lead MSOP Package
■
Current Shunt Measurement
■
Battery Monitoring
■
Remote Sensing
■
Power Management
■
High Voltage Level Translator
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
5.5V
5V
0.5V
0V
500ns/DIV
6103 TA01b
T
A
= 25°C
V
+
= 12V
R
IN
= 100Ω
R
OUT
= 5k
V
SENSE
+
= V
+
V
OUT
V
SENSE
–
∆V
SENSE
–
= 100mV
I
OUT
= 100µA
I
OUT
= 0µA
Step Response
+
–
+
–
8 7 6 5
241
+INA
OUTA OUTB
V
SB
V
SA
LTC6103
6
2
13
12
11
1
1µF
5V
5
7
4
TO µP
6103 TA01a
–INA –INB
R
IN
100Ω
R
IN
100Ω
V
SENSE
V
SENSE
++––
V
A
+
V
B
+
+INB
V
–
R
OUT
4.99k
R
OUT
4.99k
LOADLOAD
I
LOAD
I
LOAD
LTC2436-1
CH1
CH0
3,8,9,10,14,15,16
LTC6103
2
6103f
PACKAGE/ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (+INA/+INB to V
–
) ....................70V
Maximum Applied Output Voltage (OUTA/OUTB) ........9V
Input Current ........................................................±10mA
Output Short-Circuit Duration (to V
–
) ............... Indefi nite
Operating Temperature Range
LTC6103C ............................................ –40°C to 85°C
LTC6103I ............................................. –40°C to 85°C
LTC6103H .......................................... –40°C to 125°C
Specifi ed Temperature Range (Note 2)
LTC6103C ................................................ 0°C to 70°C
LTC6103I ............................................. –40°C to 85°C
LTC6103H .......................................... –40°C to 125°C
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
(Note 1)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
+INA(V
SA
)/
+INB(V
SB
)
Supply Voltage Range
●
460V
V
OS
Input Offset Voltage V
SENSE
= 5mV, LTC6103
V
SENSE
= 5mV, LTC6103C, LTC6103I
V
SENSE
= 5mV, LTC6103H
●
●
±85 ±450
±600
±700
µV
µV
µV
ΔV
OS
/ΔT Input Offset Voltage Drift V
SENSE
= 5mV
●
±1.5 µV/°C
I
B
Input Bias Current R
IN
= 1M to –INA and –INB
●
100 170
245
nA
nA
PSRR Power Supply Rejection Ratio +INA/+INB = 6V to 60V, V
SENSE
= 5mV
●
110
106
120 dB
dB
+INA/+INB = 4V to 60V, V
SENSE
= 5mV
●
105
98
115 dB
dB
V
OUT(MAX)
Maximum Output Voltage 12V ≤ +INA/+INB ≤ 60V, V
SENSE
= 88mV, R
OUT
= 10k
+INA/+INB = 6V, V
SENSE
= 66mV, R
OUT
= 5k
+INA/+INB = 4V, V
SENSE
= 55mV, R
OUT
= 2k
●
●
●
8
3
1
V
V
V
V
OUT(O)
Minimum Output Voltage
(Note 3)
V
SENSE
= 0V, LTC6103
V
SENSE
= 0V, LTC6103C, LTC6103I
V
SENSE
= 0V, LTC6103H
●
●
022.5
30
35
mV
mV
mV
I
OUT(MAX)
Maximum Output Current 6V ≤ +INA/+INB ≤ 60V, V
SENSE
= 110mV, R
OUT
= 2k
+INA/+INB = 4V, V
SENSE
= 55mV, R
OUT
= 2k, Gain = 20
●
●
1
0.5
mA
mA
t
r
Input Step Response
(to 50% of Output Step)
ΔV
SENSE
= 100mV Step, 6V ≤ +INA/+INB ≤ 60V
+INA/+INB = 4V (1V Output Step), R
OUT
= 1k
1
1.5
µs
µs
BW Signal Bandwidth I
OUT
= 200µA, R
IN
= 100Ω, R
OUT
= 5k
I
OUT
= 1mA, R
IN
= 100Ω, R
OUT
= 5k
120
140
kHz
kHz
1
2
3
4
OUTA
OUTB
NC
V
–
8
7
6
5
+INA
–INA
–INB
+INB
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 300°C/W
ORDER PART NUMBER MS8 PART MARKING*
LTC6103CMS8
LTC6103IMS8
LTC6103HMS8
LTCMN
LTCMN
LTCMN
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
*The temperature grade is identifi ed by a label on the shipping container.
The
● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. R
IN
= 100Ω, R
OUT
= 5k, 4V ≤ +INA/+INB ≤ 60V, V
–
= 0V unless otherwise
noted.
LTC6103
3
6103f
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC6103C is guaranteed to meet specifi ed performance
from 0°C to 70°C. The LTC6103C is designed, characterized and
ELECTRICAL CHARACTERISTICS
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. R
IN
= 100Ω, R
OUT
= 5k, 4V ≤ +INA/+INB ≤ 60V, V
–
= 0V unless otherwise
noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
+INA
, I
+INB
Supply Current per Amplifi er +INA/+INB = 4V, I
OUT
= 0, R
IN
= 1M
●
220 450
475
µA
µA
+INA/+INB = 6V, I
OUT
= 0, R
IN
= 1M
●
255 475
525
µA
µA
+INA/+INB = 12V, I
OUT
= 0, R
IN
= 1M
●
275 500
590
µA
µA
+INA/+INB = 60V, I
OUT
= 0, R
IN
= 1M
LTC6103I, LTC6103C
LTC6103H
●
●
390 640
690
720
µA
µA
µA
expected to meet specifi ed performance from –40°C to 85°C but is not
tested or QA sampled at these temperatures. LTC6103I is guaranteed
to meet specifi ed performance from –40°C to 85°C. The LTC6103H is
guaranteed to meet specifi ed performance from –40°C to 125°C.
Note 3: This parameter is not tested in production and is guaranteed
by the V
OS
test.
TYPICAL PERFORMANCE CHARACTERISTICS
Input V
OS
vs Temperature Input V
OS
vs Supply Voltage Input Sense Range
TEMPERATURE (°C)
–40
INPUT OFFSET VOLTAGE (µV)
0
50
100
6103 G01
–50
–100
–200
0
40
80
–20 120
20
60
100
–150
200
150
R
IN
= 100Ω
R
OUT
= 5k
V
IN
= 5mV
3 REPRESENTATIVE UNITS
V
SUPPLY
AT +INA OR +INB (V)
0
INPUT OFFSET VOLTAGE (µV)
–50
0
50
30
50
6103 G02
–100
–150
–200
10 20 40
100
150
200
60
T
A
= 125°C
T
A
= –40°C
T
A
= 85°C
T
A
= 45°C
T
A
= 0°C
R
IN
= 100Ω
R
OUT
= 5k
V
IN
= 5mV
V
+
(V)
4
MAXIMUM V
SENSE
(V)
3.0
4.0
12
6103 G03
2.0
1.0
6
8
10
5
7
9
11
5.0
2.5
3.5
1.5
4.5
R
IN
= 5k
R
OUT
= 2.5k
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LTC6103CMS8#TRPBF

Mfr. #:
Buy LTC6103CMS8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Current Sense Amplifiers 2x Hi V, Hi Side C Sense Amp
Lifecycle:
New from this manufacturer.
Delivery:
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