LT1206 Linear Technology Corporation, LT1206 Datasheet

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LT1206

Manufacturer Part Number
LT1206
Description
250mA/60MHz Current Feedback Amplifier
Manufacturer
Linear Technology Corporation
Datasheet

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FEATURES
APPLICATIONS
TYPICAL APPLICATION
ENABLE
250mA Minimum Output Drive Current
60MHz Bandwidth, A
900V/µs Slew Rate, A
0.02% Differential Gain, A
0.17° Differential Phase, A
High Input Impedance, 10MΩ
Wide Supply Range, ±5V to ±15V
Shutdown Mode: I
Adjustable Supply Current
Stable with C
Available in 8-Pin DIP and SO and 7-Pin DD and
TO-220 Packages
Video Amplifi ers
Cable Drivers
RGB Amplifi ers
Test Equipment Amplifi ers
Buffers
V
IN
5V
LT1206
+
74C906
LT1206 • TA01
S/D**
–15V
Noninverting Amplifi er with Shutdown
15V
15V
COMP
L
24k
= 10,000p
0.01µF*
C
COMP
S
< 200µA
V
V
= 2, R
= 2, R
R
R
F
G
V
V
V
OUT
**
= 2, R
= 2, R
*
L
OPTIONAL, USE WITH CAPACITIVE LOADS
GROUND SHUTDOWN PIN FOR
NORMAL OPERATION
L
= 100Ω
= 50Ω
L
L
= 30Ω
= 30Ω
DESCRIPTION
The LT
output current drive capability and excellent video char-
acteristics. The LT1206 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, low current mode,
reducing dissipation when the device is not in use. For
lower bandwidth applications, the supply current can be
reduced with a single external resistor. The low differential
gain and phase, wide bandwidth, and the 250mA mini-
mum output current drive make the LT1206 well suited
to drive multiple cables in video systems.
The LT1206 is manufactured on Linear Technology’s
proprietary complementary bipolar process.
All other trademarks are the property of their respective owners.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
®
V
R
R
1206 is a current feedback amplifi er with high
250mA/60MHz Current
S
L
L
= ±15V
= R
= ∞
Large-Signal Response, CL = 10,000pF
G
= 3k
Feedback Amplifi er
500ns/DIV
LT1206
1206 TA02
1206fa
1

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LT1206 Summary of contents

Page 1

... The low differential gain and phase, wide bandwidth, and the 250mA mini- mum output current drive make the LT1206 well suited to drive multiple cables in video systems. The LT1206 is manufactured on Linear Technology’s proprietary complementary bipolar process ...

Page 2

... COMP + S/D* +IN 2 TAB – PACKAGE 7-LEAD PLASTIC TO-220 θ = 5°C/W JA ORDER PART NUMBER LT1206CT7** ≤ 15V, pulse tested 0V, unless otherwise noted. S/D MIN TYP MAX ±3 ±10 ● ±15 ● 10 ±2 ● ±25 ±10 ±60 ● ±100 UNITS ...

Page 3

... Consult factory. Note connected between the shutdown pin and ground. S/D Note 5: Slew rate is measured at ± ± 10V output signal while operating on ±15V supplies with R Note 6: NTSC composite video with an output level of 2V. LT1206 = 0V, unless otherwise noted. S/D MIN TYP MAX UNITS 3.6 nV/√ ...

Page 4

... LT1206 SMALL-SIGNAL BANDWIDTH I = 20mA Typical, Peaking ≤ 0.1dB ±5V 0Ω S S/D –1 150 562 562 30 649 649 10 732 732 1 150 619 – 30 715 – 10 806 – 2 150 576 576 30 649 649 10 750 750 10 150 442 48.7 30 511 56 ...

Page 5

... CAPACITIVE LOAD (pF) Spot Noise Voltage and Current vs Frequency 100 = 560Ω – 100 1k 15 FREQUENCY (Hz) 100 10 1 10000 LT1206 • TPC03 100 10 1 10k LT1206 • TPC06 10k 100k LT1206 • TPC09 1206fa 5 ...

Page 6

... Output Frequency (No Load ∞ ±15V 20V OUT P 100M 10k 100k 1M FREQUENCY (Hz) LT1206 • TPC17 ∞ PACKAGE 75 100 125 LT1206 • TPC12 75 100 125 LT1206 • TPC15 10M LT1206 • TPC18 1206fa ...

Page 7

... P-P –40 2nd R = 10Ω L –50 3rd 2nd –60 – 30Ω L 3rd –80 – 100M FREQUENCY (MHz) + LT1206 P O – 590Ω 50Ω 65Ω MEASURE INTERCEPT LT1206 • TPC23 LT1206 • TPC21 1206fa 7 ...

Page 8

... Q17 1.25k SHUTDOWN APPLICATIONS INFORMATION The LT1206 is a current feedback amplifi er with high output current drive capability. The device is stable with large capacitive loads and can easily supply the high currents required by capacitive loads. The amplifi er will drive low impedance loads such as cables with excellent linearity at high frequencies ...

Page 9

... The total bias current in the LT1206 is controlled by the cur- rent fl owing 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 40pF capacitor and the supply current is typically 100µ ...

Page 10

... The photos (Figures 5a, 5b and 5c) show the large-signal response of the LT1206 for various gain confi gurations. The slew rate varies from 860V/µs for a gain 1400V/µs for a gain of – 1. ...

Page 11

... When the LT1206 is used to drive capacitive loads, the available output current can limit the overall slew rate. In the fastest confi guration, the LT1206 is capable of a slew rate of over 1V/ns. The current required to slew a capacitor at this rate is 1mA per picofarad of capacitance, so 10,000pF ...

Page 12

... Since the Maximum Junction Temperature is 150°C, the N8 package is clearly unacceptable. Both the S8 and R packages are usable. × θ 15V 39mA I + LT1206 S/D – 2MHz 0.01µF 2k 300pF –15V 2k LT1206 • F07 Figure 7. Thermal Calculation Example 2 /(2k||2k) = 1.03W 12V –12V 1206fa ...

Page 13

... VOLTAGE AND LOADING. SELECT FROM TYPICAL AC PERFORMANCE TABLE OR DETERMINE EMPIRICALLY LT1206 • TA07 LT1206 CMOS Logic to Shutdown Interface 15V + 24k LT1206 S/D – LT1206 • TA05 5V –15V 10k 2N3904 Distribution Amplifi 75Ω CABLE 75Ω LT1206 S/D – 75Ω 75Ω ...

Page 14

... LT1206 PACKAGE DESCRIPTION .300 – .325 (7.620 – 8.255) .065 (1.651) .008 – .015 TYP (0.203 – 0.381) +.035 .325 –.015 ( ) +0.889 8.255 –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) ...

Page 15

... SEATING PLANE .152 – .202 (3.860 – 5.130) .260 – .320 (6.604 – 8.128) .026 – .036 (0.660 – 0.914) .135 – .165 (3.429 – 4.191) LT1206 .189 – .197 (4.801 – 5.004) NOTE .150 – .157 (3.810 – 3.988) ...

Page 16

... LT1206 RELATED PARTS PART NUMBER DESCRIPTION LT1010 High Speed Buffer LT1207 Dual 250mA Out, 900V/µs, 60MHz Current Feedback Amplifi er LT1210 1.1A, 35MHz, 900V/µs Current Feedback Amplifi er LT1395 Single 400MHz Current Feedback Amplifi er LT1815 6.5mA, 220MHz, 1.5V/ns Operational Amplifi er with ...

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