Datasheet

LT1228
2
1228fd
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
(Note 1)
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1228CN8#PBF LT1228CN8#TRPBF LT1228CN8 8-Lead Plastic DIP 0°C to 70°C
LT1228IN8#PBF LT1228IN8#TRPBF LT1228IN8 8-Lead Plastic DIP –40°C to 85°C
LT1228CS8#PBF LT1228CS8#TRPBF 1228 8-Lead Plastic SO 0°C to 70°C
LT1228IS8#PBF LT1228IS8#TRPBF 1228I 8-Lead Plastic SO –40°C to 85°C
OBSOLETE PACKAGE
LT1228MJ8 LT1228MJ8#TRPBF LT1228MJ
8 8-Lead CERDIP –55°C to 125°C
LT1228CJ8 LT1228CJ8#TRPBF LT1228CJ8 8-Lead CERDIP 0°C to 70°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on nonstandard 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/
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Current Feedback Amplifier, Pins 1, 6, 8. ±5V ≤ V
S
≤ ±15V, I
SET
= 0µA,
V
CM
= 0V unless otherwise noted.
8
7
6
54
3
2
1I
OUT
–IN
+IN
V
–
I
SET
V
OUT
V
+
GAIN
TOP VIEW
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
+ –
g
m
T
JMAX
= 150°C, θ
JA
= 100°C/W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/W (N)
J8 PACKAGE
8-LEAD CERDIP
T
JMAX
= 175°C, θ
JA
= 100°C/W (J)
OBSOLETE PACKAGE
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage T
A
= 25°C
l
±3 ±10
±15
mV
mV
Input Offset Voltage Drift
l
10 µV/°C
I
IN
+
Noninverting Input Current T
A
= 25°C
l
±0.3 ±3
±10
µA
µA
I
IN
–
Inverting Input Current T
A
= 25°C
l
±10 ±65
±100
µA
µA
e
n
Input Noise Voltage Density f = 1kHz, R
F
= 1k, R
G
= 10Ω, R
S
= 0Ω 6 nV/√Hz
i
n
Input Noise Current Density f = 1kHz, R
F
= 1k, R
G
= 10Ω, R
S
= 10k 1.4 pV/√Hz
Supply Voltage ....................................................... ±18V
Input Current, Pins 1, 2, 3, 5, 8 (Note 8)
..............±15mA
Output Short Circuit Duration (Note 2)
.........Continuous
Operating Temperature Range
LT1228C ...................................................0°C to 70°C
LT1228I ................................................–40°C to 85°C
LT1228M (OBSOLETE) ...................... –55°C to 125°C
Storage Temperature Range
..................–65°C to 150°C
Junction Temperature
Plastic Package ................................................. 150°C
Ceramic Package (OBSOLETE) ......................... 175°C
Lead Temperature (Soldering, 10 sec)
...................300°C