LTC6255I/LTC6256I/LTC6257I ............–40°C to 85°C
LTC6255H/LTC6256H/LTC6257H ...... –40°C to 125°C
Specified Temperature Range (Note 5)
LTC6255C/LTC6256C/LTC6257C ............. 0°C to 70°C
LTC6255I/LTC6256I/LTC6257I ............–40°C to 85°C
LTC6255H/LTC6256H/LTC6257H ...... –40°C to 125°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
S6, TS8, MS8, MS only ......................................... 300°C
pin conFigurAtion
TOP VIEW
OUTA
–INA
+INA
V
–
1
3
4
+
–
8
9
V
–
7
6
5
+
–
V
+
OUTB
–INB
+INB
OUT 1
+IN 3
V
–
2
TOP VIEW
6 V
+
+
–
2
5
SHDN
4 –IN
KC PACKAGE
8-LEAD (2mm
×
2mm) PLASTIC UTDFN
T
JMAX
= 125°C,
q
JA
= 89°C/W (NOTE 6)
EXPOSED PAD (PIN 9) IS V
–
, MUST BE SOLDERED TO PCB
TOP VIEW
OUTA
–INA
+INA
V
–
1
2
3
4
8
7
6
5
V
+
OUTB
–INB
+INB
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
q
JA
= 192°C/W (NOTE 6)
TOP VIEW
+
–
+
–
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
q
JA
= 195°C/W (NOTE 6)
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
q
JA
= 163°C/W (NOTE 6)
TOP VIEW
TOP VIEW
+
–
MS PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
q
JA
= 160°C/W (NOTE 6)
2
+
–
OUTA
–INA
+INA
V
–
SHDNA
1
2
3
4
5
10
9
8
7
6
V
OUTB
–INB
+INB
SHDNB
+
–
MS PACKAGE
16-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
q
JA
= 125°C/W (NOTE 6)
+
–
+
OUTA
–INA
+INA
V
+
+INB
–INB
OUTB
NC
1
2
3
4
5
6
7
8
+
–
OUTA
–INA
+INA
V
–
1
2
3
4
8
7
6
5
V
+
OUTB
–INB
+INB
+
–
+
–
+
–
16
15
14
13
12
11
10
9
OUTD
–IND
+IND
V
–
+INC
–INC
OUTC
NC
625567fb
LTC6255/LTC6256/LTC6257
orDer inForMAtion
Lead Free Finish
TAPE AND REEL (MINI)
LTC6255CS6#TRMPBF
LTC6255IS6#TRMPBF
LTC6255HS6#TRMPBF
LTC6256CTS8#TRMPBF
LTC6256ITS8#TRMPBF
LTC6256HTS8#TRMPBF
LTC6256CKC#TRMPBF
LTC6256IKC#TRMPBF
LEAD FREE FINISH
LTC6256CMS8#PBF
LTC6256IMS8#PBF
LTC6256CMS#PBF
LTC6256IMS#PBF
LTC6257CMS#PBF
LTC6257IMS#PBF
TAPE AND REEL
LTC6255CS6#TRPBF
LTC6255IS6#TRPBF
LTC6255HS6#TRPBF
LTC6256CTS8#TRPBF
LTC6256ITS8#TRPBF
LTC6256HTS8#TRPBF
LTC6256CKC#TRPBF
LTC6256IKC#TRPBF
TAPE AND REEL
LTC6256CMS8#TRPBF
LTC6256IMS8#TRPBF
LTC6256CMS#TRPBF
LTC6256IMS#TRPBF
LTC6257CMS#TRPBF
LTC6257IMS#TRPBF
PART MARKING*
LTFFT
LTFFT
LTFFT
LTFFW
LTFFW
LTFFW
DXYT
DXYT
PART MARKING*
LTDXW
LTDXW
LTDXX
LTDXX
6257
6257
PACKAGE DESCRIPTION
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
8-Lead Plastic TSOT-23
8-Lead Plastic TSOT-23
8-Lead Plastic TSOT-23
8-Lead (2mm × 2mm) Plastic UTDFN
8-Lead (2mm × 2mm) Plastic UTDFN
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
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
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
LTC6257HMS#PBF
LTC6257HMS#TRPBF
6257
16-Lead Plastic MSOP
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are identified by a label on the shipping container.
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/
5V electricAl chArActeristics
SYMBOL PARAMETER
V
OS
Input Offset Voltage
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
SUPPLY
= 5V, V
CM
= V
OUT
= V
SUPPLY
/2, C
L
= 10pF V
SHDN
is unconnected.
,
CONDITIONS
V
CM
= V
–
+ 0.3V (PNP Region)
l
MIN
–350
–700
–350
–700
–50
–75
–50
–75
–20
–35
–20
–35
TYP
100
100
1.5
–5
5
2
2
20
2.5
380
850
1
10
MAX
350
700
350
700
50
75
50
75
20
35
20
35
UNITS
µV
µV
µV
µV
µV/°C
nA
nA
nA
nA
nA
nA
nA
nA
nV/√Hz
µV
P-P
f
A
/√Hz
f
A
/√Hz
MΩ
MΩ
625567fb
V
CM
= V
+
– 0.3V (NPN Region)
l
V
OS
TC
I
B
Input Offset Voltage Drift
Input Bias Current (Note 7)
V
CM
= V
–
+ 0.3V, V
+
– 0.3V
V
CM
= V
–
+ 0.3V
l
l
V
CM
= V
+
– 0.3V
l
I
OS
Input Offset Current
V
CM
= V
–
+ 0.3V
l
V
CM
= V
+
– 0.3V
l
e
n
i
n
R
IN
Input Voltage Noise Density
Input Noise Voltage
Input Current Noise Density
Input Resistance
f = 1kHz
f = 0.1Hz to 10Hz
f = 1kHz, V
CM
= 0V to 4V (PNP Input)
f = 1kHz, V
CM
= 4V to 5V (NPN Input)
Differential
Common Mode
3
LTC6255/LTC6256/LTC6257
5V electricAl chArActeristics
SYMBOL PARAMETER
C
IN
CMRR
IVR
PSRR
A
V
Input Capacitance
Common Mode Rejection Ratio
Input Voltage Range
Power Supply Rejection Ratio
Large Signal Gain
V
CM
= 0.4V, V
S
Ranges from 1.8V to 5V
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
SUPPLY
= 5V, V
CM
= V
OUT
= V
SUPPLY
/2, C
L
= 10pF V
SHDN
is unconnected.
,
CONDITIONS
Differential
Common Mode
V
CM
= 0.3V to 3.5V
l
l
MIN
TYP
0.4
0.3
MAX
UNITS
pF
pF
dB
dB
75
71
–0.1
82
78
50
28
25
8
100
5.1
100
200
50
6
25
35
30
40
75
95
55
60
80
90
150
170
V
dB
dB
V/mV
V/mV
V/mV
V/mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
V
OUT
= 0.5V to 4.5V, R
LOAD
= 100k
l
V
OUT
= 0.5V to 4.5V, R
LOAD
= 10k
l
V
OL
Output Swing Low (Input Overdrive 30mV).
Measured from V
–
No Load
l
I
SINK
= 100µA
l
10
30
l
I
SINK
= 1mA
V
OH
Output Swing High (Input Overdrive 30mV).
Measured from V
+
No Load
l
24
30
l
I
SOURCE
= 100µA
I
SOURCE
= 1mA
l
75
17
8
57
42
35
65
6
l
I
SC
I
S
Output Short-Circuit Current
l
Supply Current per Amplifier
l
85
100
7
12
µA
µA
µA
µA
nA
nA
Supply Current in Shutdown
I
SHDN
V
IL
V
IH
t
ON
t
OFF
BW
GBW
t
S
SR
FPBW
THD+N
I
LEAK
Shutdown Pin Current
SHDN
Input Low Voltage
SHDN
Input High Voltage
Turn-On Time
Turn-Off Time
–3dB Closed Loop Bandwidth
Gain-Bandwidth Product
Settling Time, 0.5V to 4.5V, Unity Gain
Slew Rate
Full Power Bandwidth (Note 8)
Total Harmonic Distortion and Noise
Output Leakage Current in Shutdown
V
SHDN
= 0.6V
V
SHDN
= 1.5V
Disable
Enable
SHDN
Toggle from 0V to 5V
SHDN
Toggle from 5V to 0V
A
V
= 1
f = 200kHz
l
l
–1400 –1000
l
–900 –500
l
l
0.6
1.5
50
20
4.5
2.5
2
6.5
4
6
V
V
µs
µs
MHz
MHz
MHz
µs
µs
V/µs
V/µs
kHz
%
dB
0.1%
0.01%
,
A
V
= –1, V
OUT
= 0.5V to 4.5V, C
LOAD
= 10pF
R
F
= R
G
= 10kΩ
4V
P-P
f = 500Hz, A
V
= 2, R
L
= 4kΩ, V
OUTP-P
= 1V
V
IN
= 2.25V to 2.75V
V
SHDN
= 0V, V
OUT
= 0V
V
SHDN
= 0V, V
OUT
= 5V
l
l
l
1.0
0.75
1.8
140
0.0022
93
–400
–400
400
400
nA
nA
625567fb
4
LTC6255/LTC6256/LTC6257
The
l
denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at T
1. Introduction
Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[详细]
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