LT1122DCJ8#PBF [Linear]
IC OP-AMP, Operational Amplifier;
| 型号： | LT1122DCJ8#PBF |
| 厂家： | 
Linear |
| 描述： | IC OP-AMP, Operational Amplifier |
| 文件： | 总14页 (文件大小：267K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1122
Fast Settling, JFET Input
Operational Amplifier
FEATURES
DESCRIPTION
The LT®1122 JFET input operational amplifier combines
high speed and precision performance.
n
100% Tested Settling Time
to 1mV at Sum Node, 10V Step
340ns Typ
540ns Max
Tested with Fixed Feedback Capacitor
A unique poly-gate JFET process minimizes gate series
resistance and gate-to-drain capacitance, facilitating wide
bandwidth performance, without degrading JFET transis-
tor matching.
n
Slew Rate
60V/µs Min
14MHz
n
Gain-Bandwidth Product
Power Bandwidth (20V
Unity-Gain Stable; Phase Margin
Input Offset Voltage
n
)
P-P
1.2 MHz
n
n
n
60°
It slews at 80V/µs and settles in 340ns. The LT1122 is
internally compensated to be unity-gain stable, yet it has
a bandwidth of 14MHz at a supply current of only 7mA. Its
speed makes the LT1122 an ideal choice for fast settling
12-bit data conversion and acquisition systems.
600µV Max
75pA Max
600pA Max
40pA Max
150pA Max
Input Bias Current
Input Offset Current
Low Distortion
25°C
70°C
25°C
70°C
■
■
The LT1122 offset voltage of 120µV, and voltage gain of
500,000 also support the 12-bit accurate applications.
APPLICATIONS
The input bias current of 10pA and offset current of 4pA
combined with its speed allow the LT1122 to be used in
such applications as high speed sample and hold ampli-
fiers, peak detectors, and integrators.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
n
Fast 12-Bit D/A Output Amplifiers
n
n
n
n
n
n
n
High Speed Buffers
Fast Sample-and-Hold Amplifiers
High Speed Integrators
Voltage to Frequency Converters
Active Filters
Log Amplifiers
Peak Detectors
TYPICAL APPLICATION
12-Bit Voltage Output D/A Converter
Large-Scale Response
+
C
F
2
–
+
6
V
0mA TO 2mA
OR 4mA
OUT
LT1122
0V TO 10V
3
12-BIT CURRENT OUTPUT D/A CONVERTER
1122 TA07
200ns/DIV
V
C
= 5pF TO 17pF
F
A
= –1
LT1122•TA01
(DEPENDING ON D/A CONVERTER USED)
1122fb
1
For more information www.linear.com/LT1122
LT1122
(Note 1)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage...................................................... 20V
Differential Input Voltage ....................................... 40V
Input Voltage.......................................................... 20V
Output Short Circuit Duration .......................... Indefinite
Lead Temperature (Soldering, 10 sec.)..................300°C
Operating Temperature Range
LT1122AM/BM/CM/DM (OBSOLETE).. –55°C to 125°C
LT1122AC/BC/CC/DC/CS/DS.................–40°C to 85°C
Storage Temperature Range
All Devices .......................................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
V
TRIM
–IN
SPEED BOOST/
OVERCOMP
V
OS
TOP VIEW
1
2
3
4
8
7
6
5
+
V
TRIM
–IN
SPEED BOOST/
OVERCOMP
V
OS
1
2
3
4
8
7
6
5
+IN
+
OUT
–
V
V
TRIM
OS
+IN
OUT
–
V
V
TRIM
OS
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
T
= 150°C, θ = 130°C/W
JA
JMAX
T
= 150°C, θ = 190°C/W
JMAX JA
ORDER INFORMATION
LEAD FREE FINISH
LT1122ACN8#PBF
LT1122BCN8#PBF
LT1122CCN8#PBF
LT1122DCN8#PBF
LT1122CS8#PBF
LT1122DS8#PBF
TAPE AND REEL
PART MARKING
LT1122ACN8
LT1122BCN8
LT1122CCN8
LT1122DCN8
1122C
PACKAGE DESCRIPTION
8-Lead Plastic DIP
8-Lead Plastic DIP
8-Lead Plastic DIP
8-Lead Plastic DIP
8-Lead Plastic SO
8-Lead Plastic SO
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
LT1122ACN8#TRPBF
LT1122BCN8#TRPBF
LT1122CCN8#TRPBF
LT1122DCN8#TRPBF
LT1122CS8#TRPBF
LT1122DS8#TRPBF
1122D
OBSOLETE PACKAGE
LT1122AMJ8#PBF
LT1122BMJ8#PBF
LT1122CMJ8#PBF
LT1122DMJ8#PBF
LT1122ACJ8#PBF
LT1122BCJ8#PBF
LT1122CCJ8#PBF
LT1122DCJ8#PBF
LT1122AMJ8#TRPBF
LT1122BMJ8#TRPBF
LT1122CMJ8#TRPBF
LT1122DMJ8#TRPBF
LT1122ACJ8#TRPBF
LT1122BCJ8#TRPBF
LT1122CCJ8#TRPBF
LT1122DCJ8#TRPBF
LT1122AMJ8
LT1122BMJ8
LT1122CMJ8
LT1122DMJ8
LT1122ACJ8
LT1122BCJ8
LT1122CCJ8
LT1122DCJ8
8-Lead Hermetic DIP
8-Lead Hermetic DIP
8-Lead Hermetic DIP
8-Lead Hermetic DIP
8-Lead Hermetic DIP
8-Lead Hermetic DIP
8-Lead Hermetic DIP
8-Lead Hermetic DIP
–55°C to 125°C
–55°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°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 markings, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
1122fb
2
For more information www.linear.com/LT1122
LT1122
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VS = 15V, VCM = 0V unless otherwise noted. (Note 2)
LT1122CM/DM
LT1122CC/DC
LT1122CS/DS
LT1122AM/BM
LT1122AC/BC
SYMBOL PARAMETER
CONDITIONS
MIN
TYP MAX MIN
TYP MAX UNITS
V
Input Offset Voltage
Input Offset Current
Input Bias Current
120
4
600
40
130
5
900
50
µV
pA
pA
OS
I
I
OS
10
75
12
100
B
Input Resistance
Differential
Common Mode
12
12
10
10
10
10
10
10
Ω
Ω
Ω
12
12
V
CM
V
CM
= –10V to 8V
= 8V to 11V
11
11
Input Capacitance
Slew Rate
4
4
pF
SR
A = –1
V
60
80
50
75
V/µs
Settling Time (Note 2)
10V to 0V, –10V to 0V
100% Tested: A- and C-Grades to 1mV at Sum Node
B- and D-Grades to 1mV at Sum Node
All Grades to 0.5mV at Sum Node
340
350
450
540
350
360
470
590
ns
ns
ns
GBW
Gain-Bandwidth Product Power
Bandwidth
14
1.2
13
1.1
MHz
MHz
V
OUT
= 20V
P-P
A
Large-Signal Voltage Gain
V
OUT
V
OUT
=
=
10V, R = 2kΩ
180
130
500
250
150
110
450
220
V/mV
V/mV
VOL
L
10V, R = 600Ω
L
CMRR
PSRR
Common-Mode Rejection Ratio
Input Voltage Range
V
=
10V
83
99
11
80
98
11
dB
V
CM
(Note 4)
10.5
86
10.5
82
Power Supply Rejection Ratio
Input Noise Voltage
V = 10V to 18V
103
3.0
101
3.3
dB
S
0.1Hz to 10Hz
µV
P-P
Input Noise Voltage Density
f = 100Hz
f = 10kHz
O
25
14
27
15
nV/√Hz
nV/√Hz
O
Input Noise Current Density
Output Voltage Swing
f = 100Hz, f = 10kHz
2
2
fA/√Hz
O
O
V
R = 2kΩ
12
11.5
12.5
12
12
11.5
12.5
12
V
V
OUT
L
R = 600Ω
L
I
Supply Current
7.5
10
7.8
11
mA
V
S
Minimum Supply Voltage
Offset Adjustment Range
(Note 5)
5
4
5
4
+
R
≥ 10k, Wiper to V
10
10
mV
POT
1122fb
3
For more information www.linear.com/LT1122
LT1122
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at 0°C ≤ TA ≤ 70°C. VS = 15V, VCM = 0V. (Note 2)
LT1122CC/DC
LT1122CS/DS
LT1122AC/BC
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
350
5
MAX
MIN
TYP
400
6
MAX UNITS
l
l
V
OS
Input Offset Voltage
1400
18
2000
25
µV
Average Temperature Coefficient of
Input Offset Voltage
µV/°C
l
l
l
l
l
l
l
l
I
Input Offset Current
12
80
150
600
15
90
200
800
pA
pA
OS
IB
Input Bias Current
A
Large-Signal Voltage Gain
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Input Voltage Range
Output Voltage Swing
Slew Rate
V
V
=
10V, R ≥ 2kΩ
120
82
380
98
100
78
340
96
V/mV
dB
VOL
OUT
L
CMRR
PSRR
=
10V
CM
V = 10V to 17V
84
101
10.8
12.4
70
80
99
dB
S
10
10
10.8
12.4
65
V
V
R = 2kΩ
11.5
50
11.5
40
V
OUT
L
SR
A = –1
V/µs
V
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications
are at –55°C ≤ TA ≤ 125°C. VS = 15V, VCM = 0V. (Note 2)
LT1122AM/BM
LT1122CS/DS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
650
6
MAX
MIN
TYP
800
7
MAX UNITS
l
l
V
Input Offset Voltage
2400
18
3400
25
µV
OS
Average Temperature Coefficient of
Input Offset Voltage
µV/°C
l
l
l
l
l
l
l
l
I
I
Input Offset Current
0.5
6
6
0.6
7
9
nA
nA
OS
Input Bias Current
25
35
B
A
Large-Signal Voltage Gain
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Input Voltage Range
Output Voltage Swing
Slew Rate
V
V
=
10V, R ≥ 2kΩ
70
80
83
230
97
60
76
200
94
V/mV
dB
VOL
OUT
L
CMRR
PSRR
=
10V
CM
V = 10V to 17V
100
10.5
12.1
60
78
98
dB
S
10
10
10.5
12.1
55
V
V
R = 2kΩ
11.3
45
11.3
35
V
OUT
L
SR
A = –1
V/µs
V
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications
are at –40°C ≤ TA ≤ 85°C. VS = 15V, VCM = 0V. (Note 6)
LT1122AM/BM
LT1122CS/DS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
450
6
MAX
MIN
TYP
500
7
MAX UNITS
l
l
V
Input Offset Voltage
1900
20
2700
28
µV
OS
Average Temperature Coefficient of
Input Offset Voltage
µV/°C
l
l
l
l
l
l
l
l
I
I
Input Offset Current
30
600
40
260
300
96
900
pA
pA
OS
Input Bias Current
230
340
98
2000
2700
B
A
Large-Signal Voltage Gain
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Input Voltage Range
Output Voltage Swing
Slew Rate
V
V
=
10V, R ≥ 2kΩ
95
80
83
80
76
V/mV
dB
VOL
OUT
L
CMRR
PSRR
=
10V
CM
V = 10V to 17V
100
10.6
12.2
60
78
98
dB
S
10
10
10.6
12.2
60
V
V
R = 2kΩ
11.3
45
11.3
35
V
OUT
L
SR
A = –1
V/µs
1122fb
V
4
For more information www.linear.com/LT1122
LT1122
ELECTRICAL CHARACTERISTICS
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 4: Input voltage range functionality is assured by testing offset
voltage at the input voltage range limits to a maximum of 4mV
(A, B grades), to 5.7mV (C, D grades).
Note 5: Minimum supply voltage is tested by measuring offset voltage to
Note 2: The LT1122 is measured in an automated tester in less than one
second after application of power. Depending on the package used, power
dissipation, heat sinking, and air flow conditions, the fully warmed up chip
temperature can be 10°C to 50°C higher than the ambient temperature.
Note 3: Settling time is 100% tested for A- and C-grades using the settling
time test circuit shown. This test is not included in quality assurance
sample testing.
7mV maximum at 5V supplies.
Note 6: The LT1122 is not tested and not quality-assurance-sampled
at –40°C and at 85°C. These specifications are guaranteed by design,
correlation and/or inference from –55°C, 0°C, 25°C, 70°C and/or 125°C
tests.
Settling Time Test Fixture
DEVICE UNDER TEST
5pF
2k
1%
10V
15V
(REGULATED)
7
15V
7
1
2
2k
1%
51Ω
51Ω
8
2
4
–
+
HA5002
5
6
LT1122
4
3
1
2
3
4
5
6
7
8
6
16
15
14
13
12
11
10
9
4
74LS00
GROUND ALL
OTHER INPUTS
5
–15V
–15V
5.1k*
1%
5.1k
1%
V
IN
(MEASURE INPUT
PULSE HERE)
1
LTC201A
3
TTL
IN
2
15V
7
15V
NO CONNECTION ON PINS
10, 11, 12, 14, AND 15
1
2
–10V
(REGULATED)
SUMMING
NODE
OUTPUT
51Ω
8
51Ω
4
7
3
2
HA5002
5
+
1k
6
15V
LT1223
SETTLING
TIME OUTPUT
(20 TIMES SUM
NODE OUTPUT)
+
0.1µF
1µF TANT
–
4
–15V
79Ω
–15V
1.5k
TYPICAL SUPPLY
BYPASSING FOR
EACH AMP/BUFFER
1N5712
1N5712
–15V
1µF TANT
*THIS RESISTOR CAN BE ADJUSTED TO
NULL OUT ALL OFFSETS AT THE SETTLING
TIME OUTPUT. THE AUTOMATED TESTER
USES A SEPARATE AUTOZERO CIRCUIT.
0.1µF
+
LT1122•TA02
1122fb
5
For more information www.linear.com/LT1122
LT1122
TYPICAL PERFORMANCE CHARACTERISTICS
Settling Time
(Input from –10V to 0V)
Settling Time
(Input from 10V to 0V)
Settling Time
(Input from 0V to 10V)
1122 G01
1122 G02
1122 G03
100ns/DIV
100ns/DIV
100ns/DIV
Settling Time
(Input from 0V to –10V)
Undistorted Output Swing
vs Frequency
Large-Signal Response
30
25
20
15
10
5
V
A
=
15V
S
T
= 25°C
1122 G04
1122 G05
100ns/DIV
A
= 1
200ns/DIV
V
0
100k
1M
10M
100M
FREQUENCY (Hz)
1122 TPC01
Common-Mode Rejection
vs Frequency
Voltage Gain vs Frequency
Gain, Phase vs Frequency
120
100
80
80
120
100
V
T
=
1ꢀV
V
A
=
1ꢀV
S
A
S
= 2ꢀ°C
T
= 2ꢀ°C
100
120
20
10
0
80
60
60
140
160
180
40
20
40
20
0
0
200
V
A
C
= 1ꢀV
= 2ꢀ°C
= 1ꢀpF
S
–20
–40
10
T
L
100k
FREQUENCY (Hz)
10M
1
10 100 1k 10k 100k
FREQUENCY (Hz)
100M
100
1k
10k
1M
100M
1M 10M
1M
100M
10M
FREQUENCY (Hz)
1122 TPC03
1122 TPC04
1122 TPC02
1122fb
6
For more information www.linear.com/LT1122
LT1122
TYPICAL PERFORMANCE CHARACTERISTICS
Distribution of Input Offset
Voltage
Input Bias and Offset Currents
Over Temperature
Bias and Offset Currents Over the
Common-Mode Range
800
600
100k
30k
10k
3k
120
100
V
V
=
CM
15V
= 0V
V
A
= 15V
= 25°C
V
T
=
15V
S
S
3370 UNITS TESTED
IN ALL PACKAGES
S
A
T
= 25°C
(NOT-WARMED UP)
(NOT WARMED UP)
80
60
BIAS
CURRENT
1k
BIAS
CURRENT
300
100
30
400
40
20
0
OFFSET
CURRENT
200
0
OFFSET
CURRENT
10
3
1
0
25
50
75
100
125
10
COMMON-MODE INPUT VOLTAGE (V)
–900
–500
–100 100
15
10
5
0
5
15
500
900
CHIP TEMPERATURE (°C)
INPUT OFFSET VOLTAGE (µV)
1122 TPC06
1122 TPC05
1122 TPC07
Warm-Up Drift
Noise Spectrum
0.1Hz to 10Hz Noise
1000
100
10
250
200
150
100
50
V
T
=
1ꢀV
V
A
=
15V
S
A
S
= 2ꢀ°C
T
= 25°C
SO PACKAGE
N PACKAGE
J PACKAGE
IN STILL AIR (SO PACKAGE
SOLDERED ONTO BOARD)
1
1
3
10 30 100 300 1k
FREQUENCY (Hz)
3k
10k
0
2
4
6
8
10
0
1
2
3
TIME AFTER POWER ON (MINUTES)
TIME (SECONDS)
1122 TPC10
1122 TPC08
1122 TPC09
Intermodulation Distortion
(CCIF Method) vs Frequency
LT1122 and LF156*
Total Harmonic Distortion + Noise
vs Frequency Inverting Gain
Total Harmonic Distortion + Noise
vs Frequency Noninverting Gain
0.1
0.01
0.1
0.01
0.1
0.01
V
T
A
V
Z
= 15V
T
V
Z
V
= 25°C
S
A
V
O
L
A
S
L
= 25°C
=
15V
= –10
= 7V RMS
= 5k//15pF
= 5k//15pF
= 7V RMS
O
LF156
A
= 50
V
A
A
= –50
V
V
A
= 10
V
= –10
= –1
0.001
0.0001
0.001
0.0001
0.001
0.0001
A
=1
V
T
V
Z
V
= 25°C
A
V
A
S
L
=
15V
LT1122
= 5k//15pF
= 7V RMS
O
20
100
1k
FREQUENCY (Hz)
10k 20k
3k
10k
FREQUENCY (Hz)
20k
20
100
1k
FREQUENCY (Hz)
10k 20k
*SEE LT1115 DATA SHEET FOR DEFINITION
OF CCIF TESTING
1122 TPC11
1122 TPC12
1122 TPC13
1122fb
7
For more information www.linear.com/LT1122
LT1122
APPLICATIONS INFORMATION
Settling Time Measurements
ThepowersupplyconnectionstotheLT1122mustmaintain
a low impedance to ground over a bandwidth of 20MHz.
This is especially important when driving a significant
resistive or capacitive load, since all current delivered to
the load comes from the power supplies. Multiple high
qualitybypasscapacitorsarerecommendedforeachpower
supply line in any critical application. A 0.1µF ceramic and
a 1µF electrolytic capacitor, as shown, placed as close as
possible to the amplifier (with short lead lengths to power
supply common) will assure adequate high frequency
bypassing, in most applications.
Settling time test circuits shown on some competitive
devices’ data sheets require:
1. A“flattop”pulsegenerator.Unfortunately,flattoppulse
generators are not commercially available.
2. A variable feedback capacitor around the device under
test. This capacitor varies over a four-to-one range.
Presumably, as each op amp is measured for settling
time, the capacitor is fine tuned to optimize settling
time for that particular device.
+
V
3. A small inductor load to optimize settling.
+
1µF
0.1µF
TheLT1122’ssettlingtimeis100%testedinthetestcircuit
shown. No “flat top” pulse generator is required. The test
circuit can be readily constructed, using commercially
available ICs. Of course, standard high frequency board
construction techniques should be followed. All LT1122s
are measured with a constant feedback capacitor. No fine
tuning is required.
7
2
3
–
+
6
LT1122
4
1µF
0.1µF
+
–
V
1122 TA03
Speed Boost/Overcompensation Terminal
When the feedback around the op amp is resistive (R ),
F
a pole will be created with R , the source resistance and
Pin 8 of the LT1122 can be used to change the input stage
operating current of the device. Shorting Pin 8 to the posi-
tive supply (Pin 7) increases slew rate and bandwidth by
about 25%, but at the expense of a reduction in phase
marginbyapproximately18degrees.Unity-gaincapacitive
load handling decreases from typically 500pF to 100pF.
F
capacitance (R , C ), and the amplifier input capacitance
S
S
(C ≈ 4pF). In low closed-loop gain configurations and
IN
with R and R in the kilohm range, this pole can create
S
F
excess phase shift and even oscillation. A small capaci-
tor (C ) in parallel with R eliminates this problem. With
F
F
R (C + C ) = R C , the effect of the feedback pole is
S
S
IN
F F
Conversely,connectinga15kresistorfromPin8toground
completely removed.
+
pulls 1mA out of Pin 8 (with V = 15V). This reduces slew
C
R
F
F
rate and bandwidth by 25%. Phase margin and capacitive
load handling improve; the latter typically increasing to
800pF.
High Speed Operation
–
+
C
OUTPUT
IN
As with most high speed amplifiers, care should be
takenwithsupplydecoupling, leaddressandcomponent
placement.
R
C
S
S
1122 TA04
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8
For more information www.linear.com/LT1122
LT1122
TYPICAL APPLICATIONS
Quartz Stabilized Oscillator With 9ppm Distortion
OUTPUT
–15V
4.7k
LT1004
2.5V
OUTPUT
AMPLITUDE
TRIM
10µF
4.7k
5k
47k
4kHz
J
CUT
15V
+
4.7k
LT1122
LT1010
–
LT1006
–
DISTORTION
TRIM
430pF
MOUNT IN CLOSE
PROXIMITY
+
50k
560k
470W
15V
2k
GROUND CRYSTAL CASE
–
+
1M
15V
560k
100k
LT1122
= VACTEC VTL5C10 OR
CLAIREX CLM410
–15V
Q1
2N3904
1/4 LTC201
= 1N4148
1122 TA05
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For more information www.linear.com/LT1122
LT1122
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
N Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510 Rev I)
.400*
(10.160)
MAX
8
7
6
5
4
.255 ±.015*
(6.477 ±0.381)
1
2
3
.130 ±.005
.300 – .325
.045 – .065
(3.302 ±0.127)
(1.143 – 1.651)
(7.620 – 8.255)
.065
(1.651)
TYP
.008 – .015
(0.203 – 0.381)
.120
.020
(0.508)
MIN
(3.048)
MIN
+.035
.325
–.015
.018 ±.003
(0.457 ±0.076)
.100
(2.54)
BSC
+0.889
8.255
N8 REV I 0711
(
)
–0.381
NOTE:
INCHES
1. DIMENSIONS ARE
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
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For more information www.linear.com/LT1122
LT1122
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
J8 Package
3-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.405
(10.287)
MAX
CORNER LEADS OPTION
(4 PLCS)
.005
(0.127)
MIN
6
5
4
8
7
2
.023 – .045
(0.584 – 1.143)
HALF LEAD
OPTION
.025
(0.635)
RAD TYP
.220 – .310
(5.588 – 7.874)
.045 – .068
(1.143 – 1.650)
FULL LEAD
OPTION
1
3
.200
.300 BSC
(5.080)
MAX
(7.62 BSC)
.015 – .060
(0.381 – 1.524)
.008 – .018
(0.203 – 0.457)
0° – 15°
.045 – .065
(1.143 – 1.651)
.125
3.175
MIN
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
.014 – .026
(0.360 – 0.660)
.100
(2.54)
BSC
J8 0801
OBSOLETE PACKAGE
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For more information www.linear.com/LT1122
LT1122
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610 Rev G)
.189 – .197
(4.801 – 5.004)
.045 ±.005
NOTE 3
.050 BSC
7
5
8
6
.245
MIN
.160 ±.005
.150 – .157
(3.810 – 3.988)
NOTE 3
.228 – .244
(5.791 – 6.197)
.030 ±.005
TYP
1
3
4
2
RECOMMENDED SOLDER PAD LAYOUT
.010 – .020
(0.254 – 0.508)
× 45°
.053 – .069
(1.346 – 1.752)
.004 – .010
(0.101 – 0.254)
.008 – .010
(0.203 – 0.254)
0°– 8° TYP
.016 – .050
(0.406 – 1.270)
.050
(1.270)
BSC
.014 – .019
(0.355 – 0.483)
TYP
NOTE:
INCHES
1. DIMENSIONS IN
(MILLIMETERS)
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
4. PIN 1 CAN BE BEVEL EDGE OR A DIMPLE
SO8 REV G 0212
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12
For more information www.linear.com/LT1122
LT1122
REVISION HISTORY (Revision history begins at Rev B)
REV
DATE
DESCRIPTION
PAGE NUMBER
B
02/14 Updated data sheet to current standards. New Order Information Table, Package Descriptions
2, 10-12
1122fb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
13
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
LT1122
TYPICAL APPLICATION
Wide-Band, Filtered, Full Wave Rectifier
200k
1%
1µF
200k
1%
50k
20k
1%
100k
1%
1k
–
20k
1%
E
DC
LT1122
OUT
V
–
+
IN
+
LT1122
OUTPUT DC = RMS VALUE OF INPUT
BANDWIDTH WITH 10V INPUT = 2MHz
1122 TA06
P-P
RELATED PARTS
PART NUMBER
LT1022
DESCRIPTION
COMMENTS
23V/µs Min Slew Rate, 250µV V
High Speed Precision JFET Op Amp
Precision High Speed JFET Op Amps
1MHz C-Load™ Stable JFET Op Amp
50MHz Low Noise CMOS Op Amp
OS
LT1055/LT1056
LT1464
LTC®6244
16V/µs Slew Rate, 150µV V
OS
Capacitive Loads Up to 10nF
1pA I , 100µV Max V , 1.5µV , 0.1Hz to 10Hz Noise
B
OS
P-P
1122fb
LT 0214 REV B • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
14
(408)432-1900 FAX: (408) 434-0507 www.linear.com/LT1122
●
●
LINEAR TECHNOLOGY CORPORATION 1991
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