LT1028/LT1128AC, C (Note 11) ............–40°C to 85°C
Storage Temperature Range
All Devices ......................................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec.).................. 300°C
PIN CONFIGURATION
TOP VIEW
V
OS
TRIM
V
OS
TRIM 1
–IN 2
+IN 3
8
–
+
7 V
+
6 OUT
5 OVER-
COMP
TOP VIEW
V
OS
TRIM 1
–IN 2
+IN 3
V
–
8
–
+
7
6
5
V
OS
TRIM
V
+
OUT
OVER-
COMP
4
V
–
(CASE)
4
H PACKAGE
8-LEAD TO-5 METAL CAN
T
JMAX
= 175°C,
θ
JA
= 140°C/W,
θ
JC
= 40°C/W
S8 PACKAGE
8-LEAD PLASTIC SOIC
T
JMAX
= 150°C,
θ
JA
= 140°C/W
OBSOLETE PACKAGE
TOP VIEW
V
OS
TRIM 1
–IN 2
+IN 3
V
–
4
8
–
+
TOP VIEW
V
OS
TRIM
7 V+
OUT
NC 1
NC 2
TRIM 3
–IN 4
+IN 5
V
–
6
NC 7
NC 8
–
+
16 NC
15 NC
14 TRIM
13 V
+
12 OUT
11 OVER-
COMP
10 NC
9
SW PACKAGE
16-LEAD PLASTIC SOL
NC
6
5 OVER-
COMP
N8 PACKAGE
8-LEAD PLASTIC DIP
T
JMAX
= 150°C,
θ
JA
= 150°C/W
J8 PACKAGE
8-LEAD CERAMIC DIP
T
JMAX
= 175°C,
θ
JA
= 140°C/W,
θ
JC
= 40°C/W
OBSOLETE PACKAGE
T
JMAX
= 150°C,
θ
JA
= 130°C/W
NOTE: THIS DEVICE IS NOT RECOMMENDED FOR NEW DESIGNS
1028fd
2
For more information
www.linear.com/LT1028
LT1028/LT1128
ORDER INFORMATION
LEAD FREE FINISH
LT1028ACN8#PBF
LT1028CN8#PBF
LT1128ACN8#PBF
LT1128CN8#PBF
LT1028CS8#PBF
LT1128CS8#PBF
LT1028CSW#PBF
TAPE AND REEL
N/A
N/A
N/A
N/A
LT1028CS8#TRPBF
LT1128CS8#TRPBF
LT1028CSW#TRPBF
PART MARKING*
LT1028ACN8
LT1028CN8
LT1128ACN8
LT1128CN8
1028
1128
LT1028CSW
PACKAGE DESCRIPTION
8-Lead PDIP
8-Lead PDIP
8-Lead PDIP
8-Lead PDIP
8-Lead Plastic Small Outline
8-Lead Plastic Small Outline
16-Lead Plastic SOIC (Wide)
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
∆V
OS
∆Time
I
OS
I
B
e
n
PARAMETER
Input Offset Voltage
Long Term Input Offset
Voltage Stability
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Voltage Density
Input Noise Current Density
Input Resistance
Common Mode
Differential Mode
Input Capacitance
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Slew Rate
Gain-Bandwidth Product
Open-Loop Output Impedance
Supply Current
CONDITIONS
(Note 2)
(Note 3)
V
S
= ±15V, T
A
= 25°C unless otherwise noted.
LT1028AM/AC
LT1128AM/AC
MIN
TYP
10
0.3
12
±25
35
1.00
0.85
4.7
1.0
300
20
5
±12.2
126
133
30.0
20.0
15.0
±13.0
±12.2
15.0
6.0
75
20
80
7.4
MAX
40
MIN
LT1028M/C
LT1128M/C
TYP
20
0.3
18
±30
35
1.0
0.9
4.7
1.0
300
20
5
±12.2
126
132
30.0
20.0
15.0
±13.0
±12.2
15.0
6.0
75
20
80
7.6
MAX
80
UNITS
µV
µV/Mo
nA
nA
nV
P-P
nV/√Hz
nV/√Hz
pA/√Hz
pA/√Hz
MΩ
kΩ
pF
V
dB
dB
V/µV
V/µV
V/µV
V
V
V/µs
V/µs
MHz
MHz
Ω
mA
I
n
V
CM
= 0V
V
CM
= 0V
0.1Hz to 10Hz (Note 4)
f
O
= 10Hz (Note 5)
f
O
= 1000Hz, 100% Tested
f
O
= 10Hz (Notes 4 and 6)
f
O
= 1000Hz, 100% Tested
50
±90
75
1.7
1.1
10.0
1.6
100
±180
90
1.9
1.2
12.0
1.8
CMRR
PSRR
A
VOL
V
OUT
SR
GBW
Z
O
I
S
V
CM
= ±11V
V
S
= ±4V to ±18V
R
L
≥ 2k, V
O
= ±12V
R
L
≥ 1k, V
O
= ±10V
R
L
≥ 600Ω, V
O
= ±10V
R
L
≥ 2k
R
L
≥ 600Ω
A
VCL
= –1
A
VCL
= –1
f
O
= 20kHz (Note 7)
f
O
= 200kHz (Note 7)
V
O
= 0, I
O
= 0
LT1028
LT1128
LT1028
LT1128
±11.0
114
117
7.0
5.0
3.0
±12.3
±11.0
11.0
5.0
50
13
±11.0
110
110
5.0
3.5
2.0
±12.0
±10.5
11.0
4.5
50
11
9.5
10.5
1028fd
For more information
www.linear.com/LT1028
3
LT1028/LT1128
The
l
denotes the specifications which apply over the operating
temperature range –55°C ≤ T
A
≤ 125°C. V
S
= ±15V, unless otherwise noted.
LT1028AM
LT1128AM
SYMBOL
V
OS
∆V
OS
∆Temp
I
OS
I
B
CMRR
PSRR
A
VOL
V
OUT
I
S
PARAMETER
Input Offset Voltage
Average Input Offset Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Supply Current
CONDITIONS
(Note 2)
(Note 8)
V
CM
= 0V
V
CM
= 0V
V
CM
= ±10.3V
V
S
= ±4.5V to ±16V
R
L
≥ 2k, V
O
= ±10V
R
L
≥ 1k, V
O
= ±10V
R
L
≥ 2k
l
l
l
l
l
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
LT1028M
LT1128M
MAX
120
0.8
90
±150
±10.3
100
104
2.0
1.5
±10.3
11.5
MIN
TYP
45
0.25
30
±50
±11.7
120
130
14.0
10.0
±11.6
9.0
MAX
180
1.0
180
±300
UNITS
µV
µV/°C
nA
nA
V
dB
dB
V/µV
V/µV
V
mA
MIN
TYP
30
0.2
25
±40
±11.7
122
130
14.0
10.0
±11.6
8.7
±10.3
106
110
3.0
2.0
±10.3
13.0
The
l
denotes the specifications which apply over the operating temperature range 0°C ≤ T
A
≤ 70°C. V
S
= ±15V, unless otherwise
noted.
LT1028AC
LT1128AC
SYMBOL
V
OS
∆V
OS
∆Temp
I
OS
I
B
CMRR
PSRR
A
VOL
V
OUT
I
S
PARAMETER
Input Offset Voltage
Average Input Offset Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Supply Current
V
CM
= ±10.5V
V
S
= ±4.5V to ±18V
R
L
≥ 2k, V
O
= ±10V
R
L
≥ 1k, V
O
= ±10V
R
L
≥ 2k
R
L
≥ 600Ω (Note 10)
CONDITIONS
(Note 2)
(Note 8)
V
CM
= 0V
V
CM
= 0V
l
l
l
l
l
l
l
l
l
l
LT1028C
LT1128C
MAX
80
0.8
65
±120
±10.5
106
107
3.0
2.5
±11.5
±9.0
10.5
MIN
TYP
30
0.2
22
±40
±12.0
124
132
25.0
18.0
±12.7
±10.5
8.2
11.5
MAX
125
1.0
130
±240
UNITS
µV
µV/°C
nA
nA
V
dB
dB
V/µV
V/µV
V
V
mA
MIN
TYP
15
0.1
15
±30
±10.5
110
114
5.0
4.0
±11.5
±9.5
±12.0
124
132
25.0
18.0
±12.7
±11.0
8.0
1028fd
4
For more information
www.linear.com/LT1028
LT1028/LT1128
The
l
denotes the specifications which apply over the operating
temperature range –40°C ≤ T
A
≤ 85°C. V
S
= ±15V, unless otherwise noted. (Note 11)
LT1028AC
LT1128AC
SYMBOL
V
OS
∆V
OS
∆Temp
I
OS
I
B
CMRR
PSRR
A
VOL
V
OUT
I
S
PARAMETER
Input Offset Voltage
Average Input Offset Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Supply Current
V
CM
= ±10.5V
V
S
= ±4.5V to ±18V
R
L
≥ 2k, V
O
= ±10V
R
L
≥ 1k, V
O
= ±10V
R
L
≥ 2k
(Note 8)
V
CM
= 0V
V
CM
= 0V
CONDITIONS
l
l
l
l
l
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
LT1028C
LT1128C
MAX
95
0.8
80
±140
±10.4
102
106
2.5
2.0
±11.0
11.0
MIN
TYP
35
0.25
28
±45
±11.8
123
131
20.0
14.0
±12.5
8.7
12.5
MAX
150
1.0
160
±280
UNITS
µV
µV/°C
nA
nA
V
dB
dB
V/µV
V/µV
V
mA
MIN
TYP
20
0.2
20
±35
±10.4
108
112
4.0
3.0
±11.0
±11.8
123
131
20.0
14.0
±12.5
8.5
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:
Input Offset Voltage measurements are performed by automatic
test equipment approximately 0.5 sec. after application of power. In
addition, at T
A
= 25°C, offset voltage is measured with the chip heated
to approximately 55°C to account for the chip temperature rise when the
device is fully warmed up.
Note 3:
Long Term Input Offset Voltage Stability refers to the average
trend line of Offset Voltage vs Time over extended periods after the first 30
days of operation. Excluding the initial hour of operation, changes in V
OS
during the first 30 days are typically 2.5µV.
Note 4:
This parameter is tested on a sample basis only.
Note 5:
10Hz noise voltage density is sample tested on every lot with the
exception of the S8 and S16 packages. Devices 100% tested at 10Hz are
available on request.
Note 6:
Current noise is defined and measured with balanced source
resistors. The resultant voltage noise (after subtracting the resistor noise
on an RMS basis) is divided by the sum of the two source resistors to
obtain current noise. Maximum 10Hz current noise can be inferred from
100% testing at 1kHz.
Note 7:
Gain-bandwidth product is not tested. It is guaranteed by design
and by inference from the slew rate measurement.
Note 8:
This parameter is not 100% tested.
Note 9: The inputs are protected by back-to-back diodes. Current-limiting
resistors are not used in order to achieve low noise. If differential input
voltage exceeds ±1.8V, the input current should be limited to 25mA.
Note 10:
This parameter guaranteed by design, fully warmed up at T
A
= 70°C. It includes chip temperature increase due to supply and load
currents.
Note 11:
The LT1028/LT1128 are designed, characterized and expected to
meet these extended temperature limits, but are not tested at –40°C and
85°C. Guaranteed I-grade parts are available. Consult factory.
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