lt1497cs8-trpbf Linear Technology Corporation, lt1497cs8-trpbf Datasheet

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lt1497cs8-trpbf

Manufacturer Part Number
lt1497cs8-trpbf
Description
Dual 125ma, 50mhz Current Feedback Amplifier
Manufacturer
Linear Technology Corporation
Datasheet
APPLICATIONS
FEATURES
TYPICAL
560
Minimum Output Current: 125mA
Maximum Supply Current per Amp: 7mA, V
Bandwidth: 50MHz, V
Slew Rate: 900V/ s, V
Wide Supply Range: V
Enhanced
0.02% Differential Gain: A
0.015 Differential Phase: A
55ns Settling Time to 0.1%, 10V Step
Thermal Shutdown Protection
(Enhanced
Twisted-Pair Drivers
Video Amplifiers
Cable Drivers
Test Equipment Amplifiers
Buffers
13V Output Swing: I
3.1V Output Swing: I
V
IN
1/2 LT1497
+
1/2 LT1497
+
JA
APPLICATION
560
560
560
JA
SO-8 Package for 5V Operation
HDSL2 Single Pair Line Driver
16-Pin SO Package)
U
68.1
68.1
L
S
S
S
L
= 100mA, V
= 15V
= 15V
= 2.5V to 15V
= 100mA, V
V
1:1*
= 2, R
V
*MIDCOM 671-7807
= 2, R
U
L
S
= 150
L
S
= 150
= 15V
= 5V
S
= 5V
1419 TA01
135
The LT
power, high output drive, excellent video characteristics
and outstanding distortion performance. From a low 7mA
maximum supply current per amplifier, the LT1497 drives
driven differentially with – 70dBc distortion up to 1MHz for
The LT1497 is available in a low thermal resistance 16-pin
SO package for operation with supplies up to 15V. For
resistance SO-8 package. The device has thermal and
current limit circuits that protect against fault conditions.
The LT1497 is manufactured on Linear Technology’s
complementary bipolar process. The device has charac-
teristics that bridge the performance between the LT1229
and LT1207 dual current feedback amplifiers. The LT1229
has 30mA output drive, 100MHz bandwidth and 12mA
supply current. The LT1207 has 250mA output drive,
60MHz bandwidth and 40mA supply current.
DESCRIPTION
100mA with only 1.9V of headroom. Twisted pairs can be
40mA peak signals.
5V operation the device is also available in a low thermal
, LTC and LT are registered trademarks of Linear Technology Corporation.
Current Feedback Amplifier
®
1497 dual current feedback amplifier features low
– 40
– 50
– 80
– 90
– 60
– 70
100k
2nd and 3rd Harmonic Distortion of
V
V
V
HDSL2 Single Pair Line Driver
S
IN
OUT
2ND
3RD
= 5V
= 1.25V
Dual 125mA, 50MHz
= 2.5V
U
FREQUENCY (Hz)
1M
1497 TA02
2M
LT1497
1

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lt1497cs8-trpbf Summary of contents

Page 1

... LT1207 dual current feedback amplifiers. The LT1229 has 30mA output drive, 100MHz bandwidth and 12mA supply current. The LT1207 has 250mA output drive, 60MHz bandwidth and 40mA supply current. , LTC and LT are registered trademarks of Linear Technology Corporation. – 40 – 50 – 60 – ...

Page 2

... NC 2 LT1497CS8 OUT A 3 – + – PART MARKING NC 7 – 1497 16-LEAD PLASTIC 150 C, JMAX 5V (LT1497CS8), pulse tested unless otherwise noted. S CONDITIONS 1kHz 1k, R ...

Page 3

... Power Supply Rejection A Large-Signal Voltage Gain VOL – R Transresistance OUT IN V Maximum Output Swing OUT I Maximum Output Current OUT I Supply Current per Amplifier S Channel Separation 5V (LT1497CS8), pulse tested unless otherwise noted. S CONDITIONS V = 15V 2. 15V 13V 5V, V ...

Page 4

... C. Guaranteed industrial grade parts are available, consult factory. Note 3: Thermal resistance varies depending upon the amount of PC board metal attached to the device. is specified for a 2500mm JA covered with 2oz copper on both sides (LT1497CS8), pulse tested unless otherwise noted. S CONDITIONS V = 15V (Note 4) S ...

Page 5

SMALL-SIGNAL BANDWIDTH V = 15V, Peaking 1dB – 1 150 560 560 50 560 560 20 620 620 1 150 560 – 50 560 – 20 560 – ...

Page 6

LT1497 W U TYPICAL PERFORMANCE CHARACTERISTICS Differential Phase vs Supply Voltage 0 510 AMPLIFIER OUTPUT = 2V PEAK 0 0.3 L 0.2 0 ...

Page 7

W U TYPICAL PERFORMANCE CHARACTERISTICS Settling Time to 10mV vs Output Step 15V 560 – – 2 – ...

Page 8

LT1497 U U APPLICATIONS INFORMATION The LT1497 is a dual current feedback amplifier with high output current drive capability. Bandwidth is maintained over a wide range of voltage gains by the appropriate choice of feedback resistor. These amplifiers will drive ...

Page 9

U U APPLICATIONS INFORMATION or power plane layer either inside or on the opposite side of the board. Copper board stiffeners and plated through- holes can also be used to spread the heat generated by the device. Table 1 lists ...

Page 10

LT1497 U U APPLICATIONS INFORMATION the normally active emitter of Q2 will turn off as the entire current available from the current source is used to slew the base of Q3. The base driven by Q1 without ...

Page 11

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... LT1210 Single 1A, 30MHz Current Feedback Amplifier LT1229/LT1230 Dual/Quad 100MHz Current Feedback Amplifiers LT1363/LT1364/LT1365 Single/Dual/Quad 70MHz, 1000V/ s, C-Load C-Load is a trademark of Linear Technology Corporation. Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977 www.linear-tech.com = 10) Frequency Response of Current Boosted Power Amp V 0 ...

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