ltc6602 Linear Technology Corporation, ltc6602 Datasheet

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ltc6602

Manufacturer Part Number
ltc6602
Description
Dual Matched, High Frequency Bandpass/lowpass Filters
Manufacturer
Linear Technology Corporation
Datasheet

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FEATURES
APPLICATIONS
TYPICAL APPLICATION
–3dB Small-Signal Bandwidth: 500MHz
–3dB 2V
Slew Rate: 2200V/µs
Fixed Gain of 2, No External Resistors Required
AC Coupling with Programmable DC Input Bias
Output Swings to 0.8V of Supply Rails
Full Video Swing with 5V Single Supply
Diff Gain: 0.02%
Diff Phase: 0.05°
Enable/Shutdown Pin
High Output Current: ±100mA
Supply Range: 3V to 7.5V
Operating Temperature Range: –40°C to 85°C
Available in 16-Lead SSOP and 5mm × 3mm DFN
Packages
LCD Video Projectors
RGB HD Video Amplifi ers
Coaxial Cable Drivers
Low Supply ADC Drivers
IN R
IN G
IN B
75Ω
75Ω
75Ω
22µF
22µF
22µF
P-P
EN
GND
IN R
GND R
IN G
GND G
IN B
GND B
AC-Coupled Triple Video Driver
Large-Signal Bandwidth: 400MHz
500Ω
500Ω
500Ω
LT6557
+
+
+
500Ω
500Ω
500Ω
OUT R
OUT G
OUT B
V
V
V
BCV
+
+
+
V
R
G
B
+
6557 TA01a
75Ω
75Ω
75Ω
5V
5V
5V
5V
220µF
220µF
220µF
Amplifi er with Input Bias Control
412Ω
75Ω
75Ω
75Ω
500MHz, 2200V/µs Gain of 2,
DESCRIPTION
The LT
internal fi xed gain of 2 and a programmable DC input bias
voltage. This amplifi er features a 400MHz 2V
bandwidth, 2200V/µs slew rate and a unique ability to
drive heavy output loads to 0.8V of the supply rails, mak-
ing the LT6557 ideal for a single 5V supply, wideband video
application. With just one resistor, the inputs of all three
amplifi ers can be programmed to a common voltage level,
simplifying and reducing the need for external circuitry in
the AC-coupled applications. Without the programmable
resistor, the input bias circuit becomes inactive, allowing the
use of an external clamp circuit or direct coupled input.
The LT6557 has separate power supply and ground pins for
each amplifi er to improve channel separation and to ease
power supply bypassing. The LT6557 provides uncom-
promised performance in many high speed applications
where a low voltage, single supply is required.
The LT6557 is available in 16-lead SSOP and 5mm × 3mm
DFN packages.
All other trademarks are the property of their respective owners.
Single Supply Triple Video
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
®
6557 is a high speed triple video amplifi er with an
Fast Large-Signal Transient Response
LT6557
P-P
signal
6557fa
1

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ltc6602 Summary of contents

Page 1

... The LT6557 is available in 16-lead SSOP and 5mm × 3mm DFN packages. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. + 412Ω ...

Page 2

LT6557 ABSOLUTE MAXIMUM RATINGS + Total Supply Voltage (V to GND) ...........................7.5V S Input Current ........................................................±10mA Output Current (Note 2) .......................................±70mA Output Short-Circuit Duration (Note 2) ............ Indefi nite Operating Temperature Range (Note 3) ... –40°C to 85°C Specifi ed ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T otherwise noted. SYMBOL PARAMETER A ERR Gain Error V A MATCH Gain Match Between Channels V V Input Voltage Bias IN(DC) PSRR Power Supply Rejection Ratio V Output Voltage Swing ...

Page 4

LT6557 TYPICAL PERFORMANCE CHARACTERISTICS Gain Error Distribution Supply Current per Ampifi Supply Voltage OUT ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage vs Input Voltage Input Bias Voltage vs Resistance at BCV Pin Frequency Response Output Voltage Swing vs Load Current (Output High) Input Bias Voltage vs Temperature Frequency Response of Three Amplifi ers LT6557 Output Voltage ...

Page 6

LT6557 TYPICAL PERFORMANCE CHARACTERISTICS Frequency Response with Capacitive Loads Output Impedance vs Frequency Distortion vs Frequency 6 Large-Signal Group Delay Input Impedance vs Frequency Distortion vs Frequency Crosstalk Between Amplifi ers vs Frequency PSRR vs Frequency Input Referred Noise Spectral ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS Overdriven Output Recovery OUT 2. 150 100 125 150 175 TIME (ns) Large-Signal ...

Page 8

LT6557 PIN FUNCTIONS + V B (Pin 9): Positive Supply Voltage of Blue Channel Amplifi er. This pin is not internally connected to other supply voltage pins and must be externally connected to the supply voltage bus with proper bypassing ...

Page 9

APPLICATIONS INFORMATION Programmable Input Bias The LT6557 contains circuitry that provides a user-pro- grammed bias voltage to the inputs of all three amplifi er sections. The internal biasing feature is designed to mini- mize external component count in AC-coupled applica- ...

Page 10

LT6557 SIMPLIFIED SCHEMATIC EN BIAS IN PACKAGE DESCRIPTION .254 MIN .0165 ± .0015 RECOMMENDED SOLDER PAD LAYOUT .007 – .0098 (0.178 – 0.249) .016 – .050 (0.406 – 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) ...

Page 11

... TOP AND BOTTOM OF PACKAGE 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. DHC Package 16-Lead Plastic DFN (5mm × ...

Page 12

... Gain of 2 Buffers in MS Package Optimized for Driving 75Ω Cables Performance Similar to the LT6553 with A Optimized for Driving 75Ω Cables High Slew Rate 2100V/µs www.linear.com ● 16-Lead SSOP V 6557fa LT/LWI 0606 • REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006 ...

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