LT1210CS#TRPBF [Linear]
LT1210 - 1.1A, 35MHz Current Feedback Amplifier; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C;
| 型号： | LT1210CS#TRPBF |
| 厂家： | 
Linear |
| 描述： | LT1210 - 1.1A, 35MHz Current Feedback Amplifier; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C 放大器 光电二极管 |
| 文件： | 总20页 (文件大小：1182K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1210
1.1A, 35MHz Current
Feedback Amplifier
FEATURES
DESCRIPTION
The LT®1210 is a current feedback amplifier with high
output current and excellent large-signal characteristics.
The combination of high slew rate, 1.1A output drive
and 15V operation enables the device to deliver signifi-
cant power at frequencies in the 1MHz to 2MHz range.
Short-circuit protection and thermal shutdown ensure
the device’s ruggedness. The LT1210 is stable with large
capacitive loads, and can easily supply the large currents
required by the capacitive loading. A shutdown feature
switches the device into a high impedance and low sup-
ply current mode, reducing dissipation when the device
is not in use. For lower bandwidth applications, the sup-
ply current can be reduced with a single external resistor.
n
1.1A Minimum Output Drive Current
n
35MHz Bandwidth, A = 2, R = 10Ω
V
V
L
L
n
n
n
900V/µs Slew Rate, A = 2, R = 10Ω
High Input Impedance: 10MΩ
Wide Supply Range: 5V to 15V
(TO-220 and DD Packages)
n
n
n
n
n
n
n
Enhanced θ SO-16 Package for 5V Operation
JA
Shutdown Mode: I < 200µA
S
Adjustable Supply Current
Stable with C = 10,000pF
L
Operating Temperature Range: –40°C to 85°C
Available in 7-Lead DD, TO-220 and
16-Lead SO Packages
The LT1210 is available in the TO-220 and DD pack-
ages for operation with supplies up to 15V. For 5V
applications the device is also available in a low thermal
resistance SO-16 package.
APPLICATIONS
n
Cable Drivers
n
Buffers
All registered trademarks and trademarks are the property of their respective owners.
n
Test Equipment Amplifiers
Video Amplifiers
n
n
ADSL Drivers
TYPICAL APPLICATION
Twisted Pair Driver
Total Harmonic Distortion vs Frequency
15V
–50
V
V
A
=
OUT
= 4
15V
S
+
= 20V
P-P
100nF
4.7µF*
V
–60
–70
R
T
11Ω
V
IN
+
2.5W
T1**
LT1210
R
= 12.5Ω
= 10Ω
L
SD
R
R
100Ω
2.5W
L
L
–
–80
1
3
R
= 50Ω
L
–90
4.7µF*
100nF
+
845Ω
274Ω
–15V
–100
* TANTALUM
** MIDCOM 671-7783 OR EQUIVALENT
1k
10k
100k
1M
FREQUENCY (Hz)
1210 TA02
1210 TA01
Rev C
1
Document Feedback
For more information www.analog.com
LT1210
(Note 1)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ..................................................... 18V
Input Current....................................................... 15mA
Output Short-Circuit Duration
(Note 2) ..........................................Thermally Limited
Operating Temperature Range (Note 3)
Specified Temperature Range (Note 4)
LT1210C................................................... 0°C to 70°C
LT1210I................................................–40°C to 85°C
Junction Temperature ........................................ 150°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec)...................300°C
LT1210C...............................................–40°C to 85°C
LT1210I................................................–40°C to 85°C
PIN CONFIGURATION
ꢀꢁꢂ ꢃꢄꢅꢆ
ꢤ
ꢤ
ꢤ
ꢃ
ꢃ
ꢋ
ꢟ
ꢠ
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ꢔ
ꢌ
ꢡ
ꢢ
ꢋꢌ
ꢋꢔ
ꢋꢘ
ꢋꢠ
ꢋꢟ
ꢋꢋ
ꢋꢕ
ꢣ
ꢃ
ꢘRꢙꢚꢊ ꢛꢋꢄꢗ
ꢟRꢊꢝꢀ ꢘꢞꢆꢖ
ꢛC
ꢦ
ꢅ
ꢠ
ꢑ
ꢡ
ꢢ
ꢕ
ꢐ
ꢙꢜꢊ
ꢝ
ꢁ
ꢠ
ꢒ
ꢡ
ꢢ
ꢋ
ꢑ
ꢊꢗꢀ
ꢁꢥꢀ
ꢤ
ꢃ
ꢛ
ꢙ
ꢚ
ꢘ
Cꢙꢍꢀ
ꢞ
ꢃ
Cꢊꢎꢂ
ꢘ
Cꢁꢑꢂ
ꢇꢧꢥꢀꢏꢁꢆꢛ
ꢤꢄꢛ
ꢛ
ꢉꢟꢜꢊꢈꢙꢗꢚ
ꢛC
ꢦꢄꢛ
ꢛC
ꢛꢜꢗꢀꢉꢊꢖꢝ
ꢊꢁꢣ
ꢋꢉ ꢛ
ꢞꢋꢚ
ꢝꢋꢚ
ꢞ
ꢀꢃꢣ
ꢚꢞꢝ
ꢙꢞꢝ
ꢚ
ꢞꢛ ꢘ
R ꢀꢁCꢂꢁꢃꢄ
ꢛC
ꢤ
ꢀꢁ ꢂꢃCꢄꢃꢅꢆ
ꢅꢆꢇꢄꢁꢈ ꢀꢇꢁꢉꢊꢋC ꢈ
ꢤ
ꢁꢇꢈꢆꢃꢉ ꢀꢊꢇꢋꢋꢌ
ꢃ
ꢃ
ꢊ
ꢏ ꢐꢑꢒꢓCꢔ θ ꢏ ꢕꢑꢓCꢖꢗꢈ
ꢌꢍꢁꢎ
ꢌꢁ
ꢀ
ꢐ ꢑꢒꢌꢓCꢔ θ ꢐ ꢒꢓCꢕꢖ
ꢍꢎꢃꢏ
ꢍC
ꢇ ꢂꢈCꢉꢈꢊꢅ
ꢋꢌꢍꢎꢅꢈꢏ ꢂꢎꢈꢇꢀꢄC ꢇꢁ
ꢓ ꢋꢔꢕꢖCꢗ θ ꢓ ꢘꢕꢖCꢙꢆ ꢚꢛꢜꢝe ꢔꢞ
ꢀ
ꢐꢑꢈꢒ
ꢐꢈ
http://www.linear.com/product/LT1210#orderinfo
ORDER INFORMATION
LEAD FREE FINISH
LT1210CR#PBF
LT1210IR#PBF
LT1210CS#PBF
LT1210CT7#PBF
TAPE AND REEL
LT1210CR#TRPBF
LT1210IR#TRPBF
LT1210CS#TRPBF
N/A
PART MARKING*
LT1210R
PACKAGE DESCRIPTION
7-Lead Plastic DDPAK
7-Lead Plastic DDPAK
16-Lead Plastic SOIC
7-Lead TO-220
TEMPERATURE RANGE
0°C to 70°C
LT1210R
–40°C to 85°C
0°C to 70°C
LT1210CS
LT1210CT7
0°C to 70°C
Consult ADI 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.
Rev C
2
For more information www.analog.com
LT1210
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCM = 0V, 5V ≤ VS ≤ 15V, pulse tested, VSD = 0V, unless
otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
3
15
20
mV
mV
OS
+
l
l
Input Offset Voltage Drift
Noninverting Input Current
10
2
µV/°C
I
I
5
20
µA
µA
IN
l
l
–
Inverting Input Current
10
60
100
µA
µA
IN
e
Input Noise Voltage Density
Input Noise Current Density
Input Noise Current Density
Input Resistance
f = 10kHz, R = 1kΩ, R = 10Ω, R = 0Ω
3.0
2.0
40
nV/√Hz
pA/√Hz
pA/√Hz
n
F
G
S
+i
–i
f = 10kHz, R = 1kΩ, R = 10Ω, R = 10kΩ
F G S
n
f = 10kHz, R = 1kΩ, R = 10Ω, R = 10kΩ
n
F
G
S
l
l
R
V
IN
V
IN
=
=
12V, V = 15V
1.50
0.25
10
5
MΩ
MΩ
IN
S
2V, V = 5V
S
C
Input Capacitance
V = 15V
S
2
pF
IN
l
l
Input Voltage Range
V = 15V
S
12
2
13.5
3.5
V
V
S
V = 5V
l
l
CMRR
PSRR
Common Mode Rejection Ratio
V = 15V, V
S
=
=
12V
2V
55
50
62
60
dB
dB
S
CM
V = 5V, V
=
CM
l
l
Inverting Input Current
Common Mode Rejection
V = 15V, V
12V
2V
0.1
0.1
10
10
µA/V
µA/V
S
CM
=
V = 5V, V
S
CM
l
l
Power Supply Rejection Ratio
V = 5V to 15V
S
60
55
77
30
dB
Noninverting Input Current
Power Supply Rejection
V = 5V to 15V
S
500
5
nA/V
l
Inverting Input Current
Power Supply Rejection
V = 5V to 15V
S
0.7
71
µA/V
dB
A
Large-Signal Voltage Gain
T = 25°C, V = 15V, V =
OUT
10V,
V
A
S
R = 10Ω (Note 5)
L
l
l
V = 15V, V
=
8.5V, R = 10Ω (Note 5)
55
55
68
68
dB
dB
S
OUT
L
V = 5V, V
= 2V, R = 10Ω
L
S
OUT
–
R
OL
Transresistance, ∆V /∆I
T = 25°C, V = 15V, V =
L
10V,
OUT IN
A
S
OUT
R = 10Ω (Note 5)
100
75
260
200
200
11.5
kΩ
kΩ
kΩ
l
l
V = 15V, V
= 8.5V, R = 10Ω (Note 5)
S
OUT
L
V = 5V, V
S
=
2V, R = 10Ω
75
OUT
L
V
Maximum Output Voltage Swing
T = 25°C, V = 15V, R = 10Ω (Note 5)
10.0
8.5
V
V
OUT
A
S
L
l
T = 25°C, V = 5V, R = 10Ω
2.5
2.0
3.0
V
V
A
S
L
l
l
I
I
Maximum Output Current (Note 5)
Supply Current (Note 5)
V = 15V, R = 1Ω
1.1
2.0
35
A
OUT
S
S
L
T = 25°C, V = 15V, V = 0V
50
65
mA
mA
A
S
SD
l
Supply Current, R = 51kΩ (Notes 5, 6) T = 25°C, V = 15V
15
30
200
10
mA
µA
µA
SD
A
S
l
l
Positive Supply Current, Shutdown
V = 15V, V = 15V
S SD
Output Leakage Current, Shutdown
V = 15V, V = 15V
S SD
Rev C
3
For more information www.analog.com
LT1210
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCM = 0V, 5V ≤ VS ≤ 15V, pulse tested, VSD = 0V, unless
otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
T = 25°C, A = 2, R = 400Ω
MIN
TYP
MAX
UNITS
SR
Slew Rate (Note 7)
Slew Rate (Note 5)
400
900
900
V/µs
V/µs
A
V
L
T = 25°C, A = 2, R = 10Ω
A
V
L
Differential Gain (Notes 5, 8)
Differential Phase (Notes 5, 8)
Small-Signal Bandwidth
V = 15V, R = 750Ω, R = 750Ω, R = 15Ω
0.3
0.1
55
%
DEG
MHz
S
F
G
L
V = 15V, R = 750Ω, R = 750Ω, R = 15Ω
S
F
G
L
BW
A = 2, V = 15V, Peaking ≤ 1dB,
V S
R = R = 680Ω, R = 100Ω
F
G
L
A = 2, V = 15V, Peaking ≤ 1dB,
35
MHz
V
S
R = R = 576Ω, R = 10Ω
F
G
L
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: A heat sink may be required to keep the junction temperature
below the Absolute Maximum rating. Applies to short circuits to ground
only. A short circuit between the output and either supply may permanently
damage the part when operated on supplies greater than 10V.
Note 5: SO package is recommended for 5V supplies only, as the power
dissipation of the SO package limits performance on higher supplies. For
supply voltages greater than 5V, use the TO-220 or DD package. See
Thermal Considerations in the Applications Information section for details
on calculating junction temperature. If the maximum dissipation of the
package is exceeded, the device will go into thermal shutdown.
Note 6: R is connected between the Shutdown pin and ground.
SD
Note 7: Slew rate is measured at 5V on a 10V output signal while
Note 3: The LT1210C/LT1210I are guaranteed functional over the
operating on 15V supplies with R = 1.5kΩ, R = 1.5kΩ and R = 400Ω.
F G L
temperature range of –40°C to 85°C.
Note 8: NTSC composite video with an output level of 2V.
Note 4: The LT1210C is guaranteed to meet specified performance from
0°C to 70°C. The LT1210C is designed, characterized and expected to meet
specified performance from –40°C to 85°C but not tested or QA sampled
at these temperatures. The LT1210I is guaranteed to meet specified
performance from –40°C to 85°C.
Rev C
4
For more information www.analog.com
LT1210
SMALL-SIGNAL BANDWIDTH
RSD = 0Ω, IS = 30mA, VS = 5V, Peaking ≤ 1dB
RSD = 0Ω, IS = 35mA, VS = 15V, Peaking ≤ 1dB
–3dB BW
(MHz)
–3dB BW
(MHz)
A
V
R (Ω)
L
R (Ω)
F
R (Ω)
G
A
R (Ω)
L
R (Ω)
F
R (Ω)
G
V
–1
150
30
10
549
590
619
549
590
619
52.5
39.7
26.5
–1
150
30
10
604
649
665
604
649
665
66.2
48.4
46.5
1
150
30
10
604
649
619
–
–
–
53.5
39.7
27.4
1
150
30
10
750
866
845
–
–
–
56.8
35.4
24.7
2
150
30
10
562
590
576
562
590
576
51.8
38.8
27.4
2
150
30
10
665
715
576
665
715
576
52.5
38.9
35.0
10
150
30
10
392
383
215
43.2
42.2
23.7
48.4
40.3
36.0
10
150
30
10
453
432
221
49.9
47.5
24.3
61.5
43.1
45.5
RSD = 7.5kΩ, IS = 15mA, VS = 5V, Peaking ≤ 1dB
RSD = 47.5kΩ, IS = 18mA, VS = 15V, Peaking ≤ 1dB
–3dB BW
(MHz)
–3dB BW
(MHz)
A
V
R (Ω)
L
R (Ω)
F
R (Ω)
G
A
R (Ω)
L
R (Ω)
F
R (Ω)
G
V
–1
150
30
10
562
619
604
562
619
604
39.7
28.9
20.5
–1
150
30
10
619
698
698
619
698
698
47.8
32.3
22.2
1
150
30
10
634
681
649
–
–
–
41.9
29.7
20.7
1
150
30
10
732
806
768
–
–
–
51.4
33.9
22.5
2
150
30
10
576
604
576
576
604
576
40.2
29.6
21.6
2
150
30
10
634
698
681
634
698
681
48.4
33.0
22.5
10
150
30
10
324
324
210
35.7
35.7
23.2
39.5
32.3
27.7
10
150
30
10
348
357
205
38.3
39.2
22.6
46.8
36.7
31.3
RSD = 15kΩ, IS = 7.5mA, VS = 5V, Peaking ≤ 1dB
RSD = 82.5kΩ, IS = 9mA, VS = 15V, Peaking ≤ 1dB
–3dB BW
(MHz)
–3dB BW
(MHz)
A
V
R (Ω)
L
R (Ω)
F
R (Ω)
G
A
R (Ω)
L
R (Ω)
F
R (Ω)
G
V
–1
150
30
10
536
549
464
536
549
464
28.2
20.0
15.0
–1
150
30
10
590
649
576
590
649
576
34.8
22.5
16.3
1
150
30
10
619
634
511
–
–
–
28.6
19.8
14.9
1
150
30
10
715
768
649
–
–
–
35.5
22.5
16.1
2
150
30
10
536
549
412
536
549
412
28.3
19.9
15.7
2
150
30
10
590
665
549
590
665
549
35.3
22.5
16.8
10
150
30
10
150
118
100
16.5
13.0
11.0
31.5
27.1
19.4
10
150
30
10
182
182
100
20.0
20.0
11.0
37.2
28.9
22.5
Rev C
5
For more information www.analog.com
LT1210
TYPICAL PERFORMANCE CHARACTERISTICS
Bandwidth and Feedback Resistance
vs Capacitive Load for Peaking ≤ 1dB
Bandwidth vs Supply Voltage
Bandwidth vs Supply Voltage
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
10k
100
A
= 2
= 100Ω
PEAKING ≤ 1dB
PEAKING ≤ 5dB
A
R
= 2
V
PEAKING ≤ 1dB
PEAKING ≤ 5dB
V
L
BANDWIDTH
R
= 10Ω
L
R = 470Ω
F
R = 560Ω
F
R = 560Ω
F
R = 750Ω
F
1k
10
R = 750Ω
F
R = 1kΩ
F
R = 680Ω
F
FEEDBACK RESISTANCE
R = 1kΩ
F
A
= 2
R = 2kΩ
F
V
L
R
= ∞
R = 1.5kΩ
F
V
C
= 1ꢀV
S
= 0.01µF
COMP
100
1
16
4
12
14
16
4
12
14
6
8
10
18
1
10
100
1000
10000
6
8
10
18
18
15
SUPPLY VOLTAGE ( Vꢀ
CAPACITIVE LOAD (pF)
SUPPLY VOLTAGE ( Vꢀ
1210 G03
1210 G02
1210 G01
Bandwidth and Feedback Resistance
vs Capacitive Load for Peaking ≤ 5dB
Bandwidth vs Supply Voltage
Bandwidth vs Supply Voltage
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
10k
100
A
= 10
= 10Ω
PEAKING ≤ 1dB
A
R
= 10
= 100Ω
PEAKING ≤ 1dB
PEAKING ≤ 5dB
V
L
V
L
R
BANDWIDTH
R = 330Ω
F
R =390Ω
F
R = 680Ω
F
R = 560Ω
F
1k
10
R = 470Ω
F
FEEDBACK
RESISTANCE
R = 1kΩ
F
R = 680Ω
F
A
= +2
= ∞
V
L
S
R
R = 1.5kΩ
F
V
C
=
1ꢀV
= 0.01µF
R = 1.5kΩ
F
COMP
100
1
10000
4
12
14
16
6
8
10
18
4
12
14
16
6
8
10
1
10
100
1000
SUPPLY VOLTAGE ( Vꢀ
CAPACITIVE LOAD (pF)
SUPPLY VOLTAGE ( Vꢀ
1210 G05
1210 G04
1210 G06
Differential Phase vs
Supply Voltage
Differential Gain vs
Supply Voltage
Spot Noise Voltage and Current
vs Frequency
100
10
1
0.6
0.5
0.4
0.3
0.2
0.1
0
0.5
0.4
0.3
0.2
0.1
0
R
A
= R = 750Ω
G
= 2
F
V
R
= 10Ω
L
–i
n
R
= 10Ω
L
R
A
= R = 750Ω
G
F
V
= 2
R
= 15Ω
= 50Ω
L
R
= 15Ω
L
R
L
e
n
R
= 50Ω
9
L
R = 30Ω
L
R
= 30Ω
+i
n
L
5
7
9
11
13
5
7
11
13
15
10
100
1k
10k
100k
FREQUENCY (Hz)
SUPPLY VOLTAGE ( Vꢀ
SUPPLY VOLTAGE ( Vꢀ
1210 G09
1210 G07
1210 G08
Rev C
6
For more information www.analog.com
LT1210
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs
Ambient Temperature, VS = 5V
Supply Current vs
Ambient Temperature, VS = 15V
Supply Current vs Supply Voltage
40
38
36
34
32
30
28
26
24
22
20
40
35
30
25
20
15
10
5
40
35
30
25
20
15
10
5
R
SD
= 0Ω
A
= 1
V
L
R
= ∞
R
= 0Ω
T
= 25°C
= 85°C
SD
A
R
= 0Ω
SD
T
A
R
= 47.5kΩ
SD
R
= 7.5kΩ
= 15kΩ
SD
T
= –40°C
A
T
= 125°C
A
R
SD
= 82.5kΩ
R
SD
A
= 1
V
L
R
= ∞
0
–50
0
–50
0
25
50
75 100 125
4
12
14
16
–25
6
8
10
18
0
25
50
75 100 125
–25
SUPPLY VOLTAGE ( Vꢀ
TEMPERATURE (°C)
TEMPERATURE (°C)
1210 G11
1210 G10
1210 G12
Supply Current vs
Shutdown Pin Current
Input Common Mode Limit vs
Junction Temperature
Output Short-Circuit Current vs
Junction Temperature
ꢕ
ꢓꢏ
ꢔꢕ
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ꢎꢍꢎ
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ꢒꢍꢏ
ꢒꢍꢐ
ꢙ
ꢚ ꢗꢕꢙ
ꢀ
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ꢓꢑꢋ
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ꢖꢙꢚꢛꢙꢚꢔ
ꢒꢑꢊ
ꢒꢑꢋ
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Output Saturation Voltage vs
Junction Temperature
Power Supply Rejection Ratio
vs Frequency
Supply Current vs Large-Signal
Output Frequency (No Load)
+
100
90
80
70
60
50
40
30
20
V
70
60
50
40
30
20
10
0
R
V
F
= 50Ω
A
= 2
L
S
V
=
15V
V
L
S
R
L
= 2kΩ
S
–1
–2
–3
–4
=
15V
R
V
= ∞
R
= R = 1kΩ
G
NEGATIVE
POSITIVE
= 15V
R
L
= 10Ω
V
= 20V
OUT
P-P
R
L
= 10Ω
4
3
2
1
R
L
= 2kΩ
–
V
10k
100k
1M
10M
10k
100k
1M
10M
100M
–50 –25
0
100 125
25
50
75
FREQUENCY (Hz)
FREQUENCY (Hz)
TEMPERATURE (°C)
1210 G17
1210 G18
1210 G16
Rev C
7
For more information www.analog.com
LT1210
TYPICAL PERFORMANCE CHARACTERISTICS
Output Impedance in Shutdown
vs Frequency
Large-Signal Voltage Gain vs
Frequency
Output Impedance vs Frequency
10k
1k
100
10
18
15
12
9
V
O
=
1ꢀV
S
A
= 4, R = 10Ω
L
V
F
S
I
= 0mA
R = 680Ω, R = 220Ω
G
V
= 15V, V = 5V
IN P-P
R
= 82.ꢀkΩ
SD
R
SD
= 0Ω
100
10
1
1
6
0.1
3
0
0.01
3
4
5
6
7
8
100k
1M
10M
100M
100k
1M
10M
100M
10
10
10
10
10
10
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
1210 G20
1210 G19
1210 G21
Test Circuit for 3rd Order Intercept
3rd Order Intercept vs Frequency
56
54
52
50
48
46
44
42
40
V
=
15V
S
L
F
G
R
= 10Ω
+
R = 680Ω
R
P
LT1210
= 220Ω
O
–
680Ω
220Ω
MEASURE INTERCEPT AT P
10Ω
O
1210 TC01
0
4
6
8
10
2
FREQUENCY (MHz)
1210 G22
Rev C
8
For more information www.analog.com
LT1210
APPLICATIONS INFORMATION
14
12
10
8
The LT1210 is a current feedback amplifier with high out-
put current drive capability. The device is stable with large
capacitive loads and can easily supply the high currents
required by capacitive loads. The amplifier will drive low
impedance loads such as cables with excellent linearity
at high frequencies.
V
C
=
1ꢀV
S
L
= 200pF
R = 3.4kΩ
F
NO COMPENSATION
R = 1.ꢀkΩ
F
COMPENSATION
6
4
2
0
Feedback Resistor Selection
–2
–4
–6
R = 3.4kΩ
F
The optimum value for the feedback resistors is a function
of the operating conditions of the device, the load imped-
ance and the desired flatness of response. The Typical AC
Performance tables give the values which result in less
than 1dB of peaking for various resistive loads and oper-
ating conditions. If this level of flatness is not required,
a higher bandwidth can be obtained by use of a lower
feedback resistor. The characteristic curves of Bandwidth
vs Supply Voltage indicate feedback resistors for peak-
ing up to 5dB. These curves use a solid line when the
response has less than 1dB of peaking and a dashed line
when the response has 1dB to 5dB of peaking. The curves
stop where the response has more than 5dB of peaking.
COMPENSATION
1
10
100
FREQUENCY (MHz)
1210 F01
Figure 1.
Also shown is the –3dB bandwidth with the suggested
feedback resistor vs the load capacitance.
Although the optional compensation works well with
capacitive loads, it simply reduces the bandwidth when
it is connected with resistive loads. For instance, with a
10Ω load, the bandwidth drops from 35MHz to 26MHz
when the compensation is connected. Hence, the com-
pensation was made optional. To disconnect the optional
compensation, leave the COMP pin open.
For resistive loads, the COMP pin should be left open (see
Capacitive Loads section).
Capacitive Loads
Shutdown/Current Set
The LT1210 includes an optional compensation network
for driving capacitive loads. This network eliminates most
of the output stage peaking associated with capacitive
loads, allowing the frequency response to be flattened.
Figure 1 shows the effect of the network on a 200pF load.
Without the optional compensation, there is a 6dB peak
at 40MHz caused by the effect of the capacitance on the
output stage. Adding a 0.01µF bypass capacitor between
the output and the COMP pins connects the compensation
and greatly reduces the peaking. A lower value feedback
resistor can now be used, resulting in a response which
is flat to 1dB to 40MHz. The network has the greatest
If the shutdown feature is not used, the SHUTDOWN pin
–
must be connected to ground or V .
The Shutdown pin can be used to either turn off the bias-
ing for the amplifier, reducing the quiescent current to
less than 200µA, or to control the quiescent current in
normal operation.
The total bias current in the LT1210 is controlled by
the current flowing out of the Shutdown pin. When the
Shutdown pin is open or driven to the positive supply,
the part is shut down. In the shutdown mode, the output
looks like a 70pF capacitor and the supply current is typi-
cally less than 100µA. The Shutdown pin is referenced to
the positive supply through an internal bias circuit (see
the Simplified Schematic). An easy way to force shutdown
is to use open-drain (collector) logic. The circuit shown
in Figure 2 uses a 74C906 buffer to interface between 5V
logic and the LT1210. The switching time between the
effect for C in the range of 0pF to 1000pF. The graphs of
L
Bandwidth and Feedback Resistance vs Capacitive Load
can be used to select the appropriate value of feedback
resistor. The values shown are for 1dB and 5dB peaking at
a gain of 2 with no resistive load. This is a worst-case con-
dition, as the amplifier is more stable at higher gains and
with some resistive load in parallel with the capacitance.
active and shutdown states is about 1µs. A 24kΩ pull-up
Rev C
9
For more information www.analog.com
LT1210
APPLICATIONS INFORMATION
15V
quiescent current can be reduced to 9mA in the inverting
configuration without much change in response. In non-
inverting mode, however, the slew rate is reduced as the
quiescent current is reduced.
V
+
IN
V
OUT
LT1210
SD
–
R
F
–15V
5V
R
G
74C906
24kΩ
15V
ꢀꢁꢂꢃꢄꢀ
1210 F02
Figure 2. Shutdown Interface
resistor speeds up the turn-off time and ensures that
the LT1210 is completely turned off. Because the pin is
referenced to the positive supply, the logic used should
have a breakdown voltage of greater than the positive
supply voltage. No other circuitry is necessary as the
internal circuit limits the Shutdown pin current to about
500µA. Figure 3 shows the resulting waveforms.
1210 F04a
R = 750Ω
L
I
= 9mA, 18mA, 36mA
F
Q
R
= 10Ω
V
=
S
15V
(a) AV = –1
V
OUT
1210 F04b
R = 750Ω
L
I
V
= 9mA, 18mA, 36mA
Q
ꢀꢁꢂꢃꢄꢀ
F
R
= 10Ω
=
S
15V
(b) AV = 2
1210 F03
A
= 1
R
= 24k
PULL-UP
V
F
L
Figure 4. Large-Signal Response vs IQ
R = 825Ω
V
= 1V
IN P-P
R
= 50Ω
V
= 15V
S
Slew Rate
Figure 3. Shutdown Operation
Unlike a traditional op amp, the slew rate of a current
feedback amplifier is not independent of the amplifier gain
configuration. There are slew rate limitations in both the
input stage and the output stage. In the inverting mode,
and for higher gains in the noninverting mode, the signal
amplitude on the input pins is small and the overall slew
rate is that of the output stage. The input stage slew rate
is related to the quiescent current and will be reduced as
the supply current is reduced. The output slew rate is set
by the value of the feedback resistors and the internal
capacitance. Larger feedback resistors will reduce the
slew rate as will lower supply voltages, similar to the way
Rev C
For applications where the full bandwidth of the amplifier
is not required, the quiescent current of the device may be
reduced by connecting a resistor from the Shutdown pin
to ground. The quiescent current will be approximately 65
times the current in the Shutdown pin. The voltage across
+
the resistor in this condition is V – 3V . For example,
BE
a 82kΩ resistor will set the quiescent supply current to
9mA with V = 15V.
S
The photos in Figure 4 show the effect of reducing the qui-
escent supply current on the large-signal response. The
10
For more information www.analog.com
LT1210
APPLICATIONS INFORMATION
the bandwidth is reduced. The photos in Figure 5 show
the large-signal response of the LT1210 for various gain
configurations. The slew rate varies from 770V/µs for a
gain of 1, to 1100V/µs for a gain of –1.
When the LT1210 is used to drive capacitive loads, the
available output current can limit the overall slew rate. In
the fastest configuration, the LT1210 is capable of a slew
rate of over 1V/ns. The current required to slew a capaci-
tor at this rate is 1mA per picofarad of capacitance, so
10,000pF would require 10A! The photo (Figure 6) shows
the large-signal behavior with C = 10,000pF. The slew
L
rate is about 150V/µs, determined by the current limit of
1.5A.
1210 F05a
R = 825Ω
L
V
=
S
15V
F
R
= 10Ω
(a) AV = 1
±2±0 F06
R = R = 3kΩ
L
V = ±±1V
S
F
G
R
= ∞
Figure 6. Large-Signal Response, CL = 10,000pF
Differential Input Signal Swing
The differential input swing is limited to about 6V by
an ESD protection device connected between the inputs.
In normal operation, the differential voltage between the
input pins is small, so this clamp has no effect; however,
in the shutdown mode the differential swing can be the
same as the input swing. The clamp voltage will then set
the maximum allowable input voltage. To allow for some
margin, it is recommended that the input signal be less
than 5V when the device is shut down.
1210 F05b
R = R = 750Ω
L
V = 15V
S
F
G
R
= 10Ω
(b) AV = –1
Capacitance on the Inverting Input
Current feedback amplifiers require resistive feedback
from the output to the inverting input for stable operation.
Take care to minimize the stray capacitance between the
output and the inverting input. Capacitance on the invert-
ing input to ground will cause peaking in the frequency
response (and overshoot in the transient response), but
it does not degrade the stability of the amplifier.
1210 F05c
R = R = 750Ω
L
V = 15V
S
F
G
R
= 10Ω
(c) AV = 2
Figure 5. Large-Signal Response
Rev C
11
For more information www.analog.com
LT1210
APPLICATIONS INFORMATION
Power Supplies
For surface mount devices heat sinking is accomplished
by using the heat spreading capabilities of the PC board
and its copper traces. Experiments have shown that the
heat spreading copper layer does not need to be electri-
cally connected to the tab of the device. The PCB material
can be very effective at transmitting heat between the pad
area attached to the tab of the device, and a ground or
power plane layer either inside or on the opposite side of
the board. Although the actual thermal resistance of the
PCB material is high, the length/area ratio of the thermal
resistance between the layer is small. Copper board stiff-
eners and plated through holes can also be used to spread
the heat generated by the device.
The LT1210 will operate from single or split supplies
from 5V (10V total) to 15V (30V total). It is not neces-
sary to use equal value split supplies, however the offset
voltage and inverting input bias current will change. The
offset voltage changes about 500µV per volt of supply
mismatch. The inverting bias current can change as much
as 5µA per volt of supply mismatch, though typically the
change is less than 0.5µA per volt.
Power Supply Bypassing
To obtain the maximum output and the minimum distor-
tion from the LT1210, the power supply rails should be
well bypassed. For example, with the output stage pour-
ing 1A current peaks into the load, a 1Ω power supply
impedance will cause a droop of 1V, reducing the available
output swing by that amount. Surface mount tantalum
and ceramic capacitors make excellent low ESR bypass
elements when placed close to the chip. For frequencies
above 100kHz, use 1µF and 100nF ceramic capacitors.
If significant power must be delivered below 100kHz,
capacitive reactance becomes the limiting factor. Larger
ceramic or tantalum capacitors, such as 4.7µF, are recom-
mended in place of the 1µF unit mentioned above.
Table 1 and Table 2 list thermal resistance for each pack-
age. For the TO-220 package, thermal resistance is given
for junction-to-case only since this package is usually
mounted to a heat sink. Measured values of thermal resis-
tance for several different board sizes and copper areas
are listed for each surface mount package. All measure-
ments were taken in still air on 3/32" FR-4 board with 2
oz copper. This data can be used as a rough guideline in
estimating thermal resistance. The thermal resistance for
each application will be affected by thermal interactions
with other components as well as board size and shape.
Table 1. R Package, 7-Lead DD
Inadequate bypassing is evidenced by reduced output
swing and “distorted” clipping effects when the output
is driven to the rails. If this is observed, check the supply
pins of the device for ripple directly related to the output
waveform. Significant supply modulation indicates poor
bypassing.
COPPER AREA
THERMAL RESISTANCE
TOPSIDE*
BACKSIDE
BOARD AREA (JUNCTION-TO-AMBIENT)
2500 sq. mm 2500 sq. mm 2500 sq. mm
1000 sq. mm 2500 sq. mm 2500 sq. mm
125 sq. mm 2500 sq. mm 2500 sq. mm
*Tab of device attached to topside copper
25°C/W
27°C/W
35°C/W
Thermal Considerations
Table 2. Fused 16-Lead SO Package
COPPER AREA
The LT1210 contains a thermal shutdown feature which
THERMAL RESISTANCE
protects against excessive internal (junction) tempera
-
TOPSIDE*
BACKSIDE
BOARD AREA (JUNCTION-TO-AMBIENT)
ture. If the junction temperature of the device exceeds
the protection threshold, the device will begin cycling
between normal operation and an off state. The cycling
is not harmful to the part. The thermal cycling occurs
at a slow rate, typically 10ms to several seconds, which
depends on the power dissipation and the thermal time
constants of the package and heat sinking. Raising the
ambient temperature until the device begins thermal shut-
down gives a good indication of how much margin there
is in the thermal design.
2500 sq. mm 2500 sq. mm 5000 sq. mm
1000 sq. mm 2500 sq. mm 3500 sq. mm
600 sq. mm 2500 sq. mm 3100 sq. mm
180 sq. mm 2500 sq. mm 2680 sq. mm
180 sq. mm 1000 sq. mm 1180 sq. mm
180 sq. mm 600 sq. mm 780 sq. mm
180 sq. mm 300 sq. mm 480 sq. mm
180 sq. mm 100 sq. mm 280 sq. mm
40°C/W
46°C/W
48°C/W
49°C/W
56°C/W
58°C/W
59°C/W
60°C/W
61°C/W
180 sq. mm
0 sq. mm
180 sq. mm
Rev C
12
For more information www.analog.com
LT1210
APPLICATIONS INFORMATION
T7 Package, 7-Lead TO-220
5V
Thermal Resistance (Junction-to-Case) = 5°C/W
76mA
SD
A
Calculating Junction Temperature
The junction temperature can be calculated from the
equation:
+
2V
0V
V
O
LT1210
–2V
–
10Ω
T = (P )(θ ) + T
J
D
JA
A
V
= 1.4V
RMS
O
where:
–5V
T = Junction Temperature
J
680Ω
220Ω
1210 F07
T = Ambient Temperature
A
P = Device Dissipation
D
Figure 7.
θ
JA
= Thermal Resistance (Junction-to-Ambient)
then:
T = (0.56W)(46°C/W) + 70°C = 96°C
As an example, calculate the junction temperature for the
circuit in Figure 7 for the SO and R packages assuming a
70°C ambient temperature.
J
for the SO package with 1000 sq. mm topside
heat sinking
The device dissipation can be found by measuring the
supply currents, calculating the total dissipation and
then subtracting the dissipation in the load and feed-
back network.
T = (0.56W)(27°C/W) + 70°C = 85°C
J
for the R package with 1000 sq. mm topside heat
sinking
Since the maximum junction temperature is 150°C,
both packages are clearly acceptable.
2
P = (76mA)(10V) – (1.4V) / 10 = 0.56W
D
Rev C
13
For more information www.analog.com
LT1210
TYPICAL APPLICATIONS
Precision × 10 High Current Amplifier
CMOS Logic to Shutdown Interface
15V
V
+
IN
+
LT1097
+
LT1210
COMP
SD
24kΩ
LT1210
SD
OUT
–
–
–
0.01µF
500pF
5V
–15V
3kΩ
330Ω
10kΩ
2N3904
9.09kΩ
1210 TA04
OUTPUT OFFSET: <500µV
SLEW RATE: 2V/µs
1kΩ
1210 TA03
BANDWIDTH: 4MHz
STABLE WITH C < 10nF
L
Distribution Amplifier
Buffer AV = 1
V
+
ꢍ
ꢐꢑ
ꢁ
IN
75Ω CABLE
75Ω
ꢂꢃꢄꢅꢄꢆ
Cꢎꢛꢔ
ꢇꢈ
LT1210
75Ω
ꢍ
ꢎꢏꢃ
SD
–
ꢀ
ꢌ ꢎꢔꢃꢐꢎꢑꢒꢂꢕ ꢏꢇꢖ ꢗꢐꢃꢘ CꢒꢔꢒCꢐꢃꢐꢍꢖ ꢂꢎꢒꢈꢇ
ꢆꢉꢆꢄꢊꢋꢌ
75Ω
R
R
F
ꢌꢌ ꢍꢒꢂꢏꢖ ꢎꢋ R ꢈꢖꢔꢖꢑꢈꢇ ꢎꢑ ꢇꢏꢔꢔꢂꢙ
ꢋ
75Ω
75Ω
ꢍꢎꢂꢃꢒꢚꢖ ꢒꢑꢈ ꢂꢎꢒꢈꢐꢑꢚꢉ ꢇꢖꢂꢖCꢃ
ꢋRꢎꢛ ꢃꢙꢔꢐCꢒꢂ ꢒC ꢔꢖRꢋꢎRꢛꢒꢑCꢖ
ꢃꢒꢜꢂꢖ ꢎR ꢈꢖꢃꢖRꢛꢐꢑꢖ ꢖꢛꢔꢐRꢐCꢒꢂꢂꢙ
R ꢌꢌ
ꢋ
ꢄꢅꢄꢆ ꢃꢒꢆꢓ
G
1210 TA05
Rev C
14
For more information www.analog.com
LT1210
SIMPLIFIED SCHEMATIC
+
V
TO ALL
CURRENT
SOURCES
Q5
Q10
Q2
D1
Q11
Q6
Q15
Q18
Q1
Q17
Q9
–
–
V
1.25kΩ
+IN
50Ω
COMP
V
C
C
–IN
R
C
OUTPUT
+
V
SHUTDOWN
+
V
Q12
Q3
Q8
Q16
Q14
D2
Q4
Q13
Q7
–
V
1210 SS
Rev C
15
For more information www.analog.com
LT1210
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/product/LT1210#packaging for the most recent package drawings.
R Package
7-Lead Plastic DD Pak
(Reference LTC DWG # 05-08-1462 Rev G)
ꢄꢋꢎꢏ ꢄꢋꢄꢎ
ꢄꢋꢄꢇ ꢄꢋꢄꢆ
ꢀꢇꢋꢌꢏꢄ ꢄꢋꢏꢄꢐꢃ
ꢄꢋꢌꢑꢄ ꢍ ꢄꢋꢅꢆꢏ
ꢀꢑꢋꢑꢄꢇ ꢍ ꢆꢄꢋꢏꢅꢆꢃ
ꢀꢆꢋꢏꢎꢅ ꢄꢋꢎꢏꢅꢃ
ꢄꢋꢄꢇ ꢄꢋꢄꢆ
ꢓꢔꢕ
ꢄꢋꢆꢇꢏ ꢍ ꢄꢋꢆꢐꢄ
ꢀꢅꢋꢆꢑꢆ ꢍ ꢅꢋꢏꢂꢎꢃ
ꢀꢆꢋꢏꢎꢅ ꢄꢋꢎꢏꢅꢃ
ꢄꢋꢄꢅꢏ ꢍ ꢄꢋꢄꢏꢏ
ꢀꢆꢋꢆꢅꢌ ꢍ ꢆꢋꢌꢑꢂꢃ
ꢆꢏꢘ ꢏꢘ
ꢄꢋꢌꢄ ꢄꢋꢄꢎ
ꢀꢂꢋꢇꢎꢄ ꢄꢋꢏꢄꢐꢃ
ꢄꢋꢄꢇ ꢄꢋꢄꢆ
ꢀꢆꢋꢏꢎꢅ ꢄꢋꢎꢏꢅꢃ
ꢒꢄꢋꢄꢄꢐ
ꢄꢋꢄꢄꢅ
ꢄꢋꢆꢐ ꢄꢋꢄꢆ
ꢀꢅꢋꢏꢂꢎ ꢄꢋꢎꢏꢅꢃ
ꢍꢄꢋꢄꢄꢅ
ꢄꢋꢄꢇ ꢄꢋꢄꢆ
ꢀꢆꢋꢏꢎꢅ ꢄꢋꢎꢏꢅꢃ
ꢓꢔꢕ
ꢄꢋꢌꢌꢄ ꢍ ꢄꢋꢌꢂꢄ
ꢀꢐꢋꢌꢐꢎ ꢍ ꢑꢋꢌꢑꢐꢃ
ꢒꢄꢋꢎꢄꢌ
ꢍꢄꢋꢆꢄꢎ
ꢄꢋꢏꢏ ꢄꢋꢄꢏ
ꢀꢆꢌꢋꢑꢂꢄ ꢆꢋꢎꢂꢄꢃ
ꢄꢋꢆꢄꢎ
ꢀ
ꢃ
ꢄꢋꢄꢑꢏ ꢍ ꢄꢋꢆꢆꢏ
ꢀꢎꢋꢅꢆꢌ ꢍ ꢎꢋꢑꢎꢆꢃ
ꢄꢋꢄꢐꢏ ꢄꢋꢄꢆ
ꢀꢎꢋꢆꢏꢑ ꢄꢋꢎꢏꢅꢃ
ꢁꢈꢓꢝꢡꢜ ꢝ
ꢄꢋꢄꢏꢄ
ꢀꢆꢋꢎꢂꢄꢃ
ꢖꢗC
ꢄꢋꢄꢏꢄ ꢄꢋꢄꢆꢎ
ꢀꢆꢋꢎꢂꢄ ꢄꢋꢌꢄꢏꢃ
ꢄꢋꢄꢆꢌ ꢍ ꢄꢋꢄꢎꢌ
ꢀꢄꢋꢌꢌꢄ ꢍ ꢄꢋꢏꢐꢅꢃ
ꢒꢄꢋꢄꢆꢎ
ꢄꢋꢆꢅꢌ
ꢄꢋꢌꢄ ꢄꢋꢄꢎ
ꢀꢂꢋꢇꢎꢄ ꢄꢋꢏꢄꢐꢃ
ꢍꢄꢋꢄꢎꢄ
ꢄꢋꢄꢎꢇ ꢍ ꢄꢋꢄꢌꢏ
ꢀꢄꢋꢇꢇꢄ ꢍ ꢄꢋꢐꢐꢑꢃ
ꢓꢔꢕ
ꢒꢄꢋꢌꢄꢏ
ꢌꢋꢇꢌꢎ
ꢖꢙꢓꢓꢙꢚ ꢉꢡꢈꢥ ꢙꢟ ꢁꢁ ꢕꢝꢢ
ꢠꢝꢓCꢠꢈꢁ ꢝRꢈꢝ ꢡꢗ ꢗꢙꢜꢁꢈR ꢕꢜꢝꢓꢈꢁ
CꢙꢕꢕꢈR ꢠꢈꢝꢓ ꢗꢡꢛꢢ
ꢀ
ꢃ
ꢍꢄꢋꢏꢄꢐ
ꢁꢈꢓꢝꢡꢜ ꢝ
ꢄꢘ ꢍ ꢂꢘ ꢓꢔꢕ
ꢄꢘ ꢍ ꢂꢘ ꢓꢔꢕ
ꢄꢋꢅꢎꢄ
ꢄꢋꢎꢂꢇ
ꢄꢋꢄꢐꢄ
ꢄꢋꢅꢎꢄ
ꢄꢋꢌꢏꢄ
ꢄꢋꢌꢎꢏ
ꢄꢋꢎꢄꢏ
ꢄꢋꢌꢎꢄ
ꢄꢋꢏꢐꢏ
ꢄꢋꢏꢐꢏ
ꢄꢋꢄꢑꢄ
ꢄꢋꢄꢌꢏ
ꢄꢋꢄꢑꢄ
ꢄꢋꢄꢌꢏ
ꢄꢋꢄꢏꢄ
ꢄꢋꢄꢏꢄ
RꢈCꢙꢚꢚꢈꢛꢁꢈꢁ ꢗꢙꢜꢁꢈR ꢕꢝꢁ ꢜꢝꢔꢙꢞꢓ
RꢈCꢙꢚꢚꢈꢛꢁꢈꢁ ꢗꢙꢜꢁꢈR ꢕꢝꢁ ꢜꢝꢔꢙꢞꢓ
ꢟꢙR ꢓꢠꢡCꢢꢈR ꢗꢙꢜꢁꢈR ꢕꢝꢗꢓꢈ ꢝꢕꢕꢜꢡCꢝꢓꢡꢙꢛꢗ
ꢛꢙꢓꢈꢣ
R ꢀꢁꢁꢂꢃ ꢄꢅꢆꢇ Rꢈꢉ ꢊ
ꢆꢋ ꢁꢡꢚꢈꢛꢗꢡꢙꢛꢗ ꢡꢛ ꢡꢛCꢠꢤꢀꢚꢡꢜꢜꢡꢚꢈꢓꢈRꢃ
ꢎꢋ ꢁRꢝꢥꢡꢛꢊ ꢛꢙꢓ ꢓꢙ ꢗCꢝꢜꢈ
Rev C
16
For more information www.analog.com
LT1210
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/product/LT1210#packaging for the most recent package drawings.
S Package
16-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610 Rev G)
ꢀꢐꢋꢃ ꢄ ꢀꢐꢓꢇ
ꢆꢓꢀꢋꢁꢇ ꢄ ꢂꢁꢀꢁꢁꢋꢊ
ꢀꢁꢇꢅ ꢀꢁꢁꢅ
ꢑꢔꢍꢕ ꢐ
ꢀꢁꢅꢁ ꢙꢖC
ꢂꢃ
ꢑ
ꢂꢅ
ꢂꢇ
ꢂꢐ
ꢂꢈ
ꢂꢂ
ꢂꢁ
ꢓ
ꢑ
ꢂ
ꢀꢈꢇꢅ
ꢚꢛꢑ
ꢀꢂꢃꢁ ꢀꢁꢁꢅ
ꢀꢂꢅꢁ ꢄ ꢀꢂꢅꢉ
ꢀꢈꢈꢋ ꢄ ꢀꢈꢇꢇ
ꢆꢅꢀꢉꢓꢂ ꢄ ꢃꢀꢂꢓꢉꢊ
ꢆꢐꢀꢋꢂꢁ ꢄ ꢐꢀꢓꢋꢋꢊ
ꢑꢔꢍꢕ ꢐ
ꢈ
ꢐ
ꢑꢒꢈ
ꢑꢒꢈ
ꢋ
ꢀꢁꢐꢁ ꢀꢁꢁꢅ
ꢍꢎꢏ
RꢕCꢔꢚꢚꢕꢑꢜꢕꢜ ꢖꢔꢝꢜꢕR ꢏꢞꢜ ꢝꢞꢎꢔꢟꢍ
ꢈ
ꢐ
ꢅ
ꢃ
ꢉ
ꢂ
ꢇ
ꢀꢁꢂꢁ ꢄ ꢀꢁꢈꢁ
ꢆꢁꢀꢈꢅꢇ ꢄ ꢁꢀꢅꢁꢋꢊ
× ꢇꢅ°
ꢀꢁꢅꢐ ꢄ ꢀꢁꢃꢓ
ꢆꢂꢀꢐꢇꢃ ꢄ ꢂꢀꢉꢅꢈꢊ
ꢀꢁꢁꢇ ꢄ ꢀꢁꢂꢁ
ꢆꢁꢀꢂꢁꢂ ꢄ ꢁꢀꢈꢅꢇꢊ
ꢀꢁꢁꢋ ꢄ ꢀꢁꢂꢁ
ꢆꢁꢀꢈꢁꢐ ꢄ ꢁꢀꢈꢅꢇꢊ
ꢁꢌ ꢄ ꢋꢌ ꢍꢎꢏ
ꢀꢁꢅꢁ
ꢆꢂꢀꢈꢉꢁꢊ
ꢙꢖC
ꢀꢁꢂꢇ ꢄ ꢀꢁꢂꢓ
ꢆꢁꢀꢐꢅꢅ ꢄ ꢁꢀꢇꢋꢐꢊ
ꢍꢎꢏ
ꢀꢁꢂꢃ ꢄ ꢀꢁꢅꢁ
ꢆꢁꢀꢇꢁꢃ ꢄ ꢂꢀꢈꢉꢁꢊ
ꢖꢂꢃ Rꢕꢗ ꢘ ꢁꢈꢂꢈ
ꢑꢔꢍꢕꢡ
ꢂꢀ ꢜꢛꢚꢕꢑꢖꢛꢔꢑꢖ ꢛꢑ
ꢛꢑCꢠꢕꢖ
ꢆꢚꢛꢝꢝꢛꢚꢕꢍꢕRꢖꢊ
ꢈꢀ ꢜRꢞꢢꢛꢑꢘ ꢑꢔꢍ ꢍꢔ ꢖCꢞꢝꢕ
ꢐꢀ ꢍꢠꢕꢖꢕ ꢜꢛꢚꢕꢑꢖꢛꢔꢑꢖ ꢜꢔ ꢑꢔꢍ ꢛꢑCꢝꢟꢜꢕ ꢚꢔꢝꢜ ꢣꢝꢞꢖꢠ ꢔR ꢏRꢔꢍRꢟꢖꢛꢔꢑꢖꢀ
ꢚꢔꢝꢜ ꢣꢝꢞꢖꢠ ꢔR ꢏRꢔꢍRꢟꢖꢛꢔꢑꢖ ꢖꢠꢞꢝꢝ ꢑꢔꢍ ꢕꢤCꢕꢕꢜ ꢀꢁꢁꢃꢥ ꢆꢁꢀꢂꢅꢦꢦꢊ
ꢇꢀ ꢏꢛꢑ ꢂ Cꢞꢑ ꢙꢕ ꢙꢕꢗꢕꢝ ꢕꢜꢘꢕ ꢔR ꢞ ꢜꢛꢚꢏꢝꢕ
Rev C
17
For more information www.analog.com
LT1210
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/product/LT1210#packaging for the most recent package drawings.
T7 Package
7-Lead Plastic TO-220 (Standard)
(Reference LTC DWG # 05-08-1422)
ꢀꢄꢈꢂ ꢉ ꢀꢄꢐꢁ
ꢃꢌꢀꢄꢋꢄ ꢉ ꢌꢀꢂꢆꢅꢇ
ꢀꢄꢌꢆ ꢉ ꢀꢄꢂꢂ
ꢃꢊꢀꢆꢊꢌ ꢉ ꢊꢀꢋꢊꢆꢇ
ꢔꢕꢖ
ꢀꢊꢋꢁ ꢉ ꢀꢌꢄꢂ
ꢃꢋꢀꢋꢁꢈ ꢉ ꢄꢁꢀꢂꢌꢄꢇ
ꢀꢁꢌꢂ ꢉ ꢀꢁꢂꢂ
ꢃꢄꢀꢄꢌꢊ ꢉ ꢄꢀꢊꢋꢆꢇ
ꢀꢅꢊꢁ ꢉ ꢀꢅꢆꢁ
ꢃꢂꢀꢐꢌꢅ ꢉ ꢈꢀꢐꢂꢐꢇ
ꢀꢂꢆꢁ ꢉ ꢀꢈꢅꢁ
ꢃꢄꢌꢀꢌꢆꢐ ꢉ ꢄꢂꢀꢆꢌꢐꢇ
ꢀꢈꢅꢁ
ꢃꢄꢂꢀꢆꢂꢇ
ꢍꢑꢒ
ꢀꢌꢈꢁ ꢉ ꢀꢂꢁꢁ
ꢃꢄꢄꢀꢈꢐꢌ ꢉ ꢄꢅꢀꢆꢁꢁꢇ
ꢀꢊꢊꢁ ꢉ ꢀꢊꢆꢁ
ꢃꢐꢀꢊꢐꢅ ꢉ ꢋꢀꢊꢋꢐꢇ
ꢀꢆꢁꢁ ꢉ ꢀꢆꢅꢐ
ꢃꢄꢆꢀꢆꢐꢁ ꢉ ꢄꢐꢀꢌꢋꢄꢇ
ꢀꢁꢋꢂ ꢉ ꢀꢄꢄꢂ
ꢃꢅꢀꢌꢄꢊ ꢉ ꢅꢀꢋꢅꢄꢇ
ꢀꢄꢂꢂ ꢉ ꢀꢄꢋꢂꢓ
ꢃꢊꢀꢋꢊꢆ ꢉ ꢌꢀꢋꢂꢊꢇ
ꢘꢙꢖꢍꢕꢚꢛ ꢒꢜꢖꢚꢙ
ꢀꢄꢂꢅ ꢉ ꢀꢅꢁꢅ
ꢃꢊꢀꢐꢈꢁ ꢉ ꢂꢀꢄꢊꢁꢇ
ꢀꢅꢈꢁ ꢉ ꢀꢊꢅꢁ
ꢃꢈꢀꢈꢁꢌ ꢉ ꢐꢀꢄꢅꢐꢇ
ꢀꢁꢄꢊ ꢉ ꢀꢁꢅꢊ
ꢃꢁꢀꢊꢊꢁ ꢉ ꢁꢀꢂꢐꢌꢇ
ꢀꢁꢂꢁ
ꢗꢘC
ꢀꢁꢅꢈ ꢉ ꢀꢁꢊꢈ
ꢃꢁꢀꢈꢈꢁ ꢉ ꢁꢀꢋꢄꢌꢇ
ꢃꢄꢀꢅꢆꢇ
ꢀꢄꢊꢂ ꢉ ꢀꢄꢈꢂ
ꢃꢊꢀꢌꢅꢋ ꢉ ꢌꢀꢄꢋꢄꢇ
ꢓꢝꢙꢖꢘꢞRꢙꢔ ꢖꢍ ꢍꢟꢙ ꢘꢙꢖꢍꢕꢚꢛ ꢒꢜꢖꢚꢙ
ꢍꢆ ꢃꢍꢎꢏꢅꢅꢁꢇ ꢁꢐꢁꢄ
Rev C
18
For more information www.analog.com
LT1210
REVISION HISTORY (Revision history begins at Rev B)
REV
DATE
DESCRIPTION
PAGE NUMBER
1 to 3, 20
B
11/15 Added LT1210IR#PBF
04/18 Added Ohmic symbols
C
1 to 20
Rev C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license is ante lic on otherw de any patent or patent rights of Analog Devices.
19
grdbyimpatioriseun r
LT1210
TYPICAL APPLICATION
Wideband 9W Bridge Amplifier
15V
INPUT
P-P
P
O
+
Frequency Response
5V
9W
LT1210
SD
ꢏꢐ
ꢏꢑ
ꢏꢒ
ꢓꢔ
ꢓꢕ
ꢓꢓ
ꢖ
T1*
R
50Ω
9W
L
10nF
–
1
1
1
1
680Ω
100nF
–15V
220Ω
ꢗ
15V
1
1
ꢏ
910Ω
–
ꢘꢓ
ꢘꢕ
LT1210
SD
ꢓꢒꢙ
ꢓꢒꢒꢙ
ꢓꢚ
ꢓꢒꢚ
ꢓꢒꢒꢚ
10nF
+
ꢀRꢁꢂꢃꢁꢄCꢅ ꢆꢇꢈꢉ
ꢓꢏꢓꢒ ꢛꢋꢒꢖ
* COILTRONICS Versa-Pac™ CTX-01-13033-X2
OR EQUIVALENT
–15V
1210 TA07
RELATED PARTS
PART NUMBER
LT1010
DESCRIPTION
COMMENTS
20MHz Bandwidth, 75V/µs Slew Rate
Fast 150mA Power Buffer
LT1166
Power Output Stage Automatic Bias System
Sets Class AB Bias Currents for High Voltage/High Power
Output Stages
LT1206
Single 250mA, 60MHz Current Feedback Amplifier
Shutdown Function, Stable with C = 10,000pF, 900V/µs
L
Slew Rate
LT1207
LT1227
LT1360
LT1363
Dual 250mA, 60MHz Current Feedback Amplifier
Single 140MHz Current Feedback Amplifier
Single 50MHz, 800V/µs Op Amp
Dual Version of LT1206
Shutdown Function, 1100V/µs Slew Rate
Voltage Feedback, Stable with C = 10,000pF
L
Single 70MHz, 1000V/µs Op Amp
140V Operational Amplifier
Voltage Feedback, Stable with C = 10,000pF
L
LTC6090/
LTC6090-5
50pA I , 1.6mV V , 9.5V to 140V V , 4.5µA I RR Output
B OS S S
LTC6091
140V Operational Amplifier
50pA I , 1.6mV V , 9.5V to 140V V , 4.5µA I RR Output
B OS S S
Rev C
D16837-0-4/18(C)
www.analog.com
20
ANALOG DEVICES, INC. 1996-2018
相关型号：
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IC DUAL OP-AMP, 400 uV OFFSET-MAX, 14 MHz BAND WIDTH, CDIP8, HERMETIC SEALED, CERDIP-8, Operational Amplifier
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