LT6600CS8-2.5 Linear Technology, LT6600CS8-2.5 Datasheet

IC AMP DIFF LP FLTR 2.5MHZ 8SOIC

LT6600CS8-2.5

Manufacturer Part Number
LT6600CS8-2.5
Description
IC AMP DIFF LP FLTR 2.5MHZ 8SOIC
Manufacturer
Linear Technology
Datasheet

Specifications of LT6600CS8-2.5

Amplifier Type
Differential
Number Of Circuits
1
Output Type
Differential
Current - Input Bias
15µA
Voltage - Input Offset
5000µV
Current - Supply
28mA
Voltage - Supply, Single/dual (±)
3 V ~ 11 V, ±1.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output / Channel
-
-3db Bandwidth
-
Slew Rate
-
Gain Bandwidth Product
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT6600CS8-2.5
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT6600CS8-2.5
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT6600CS8-2.5#PBF
Manufacturer:
LT
Quantity:
5 000
Part Number:
LT6600CS8-2.5#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
n
n
n
n
n
n
n
n
n
APPLICATIONS
TYPICAL APPLICATION
FEATURES
n
n
n
n
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
DISCRETE MULTI-TONE
16-BIT 4kHz to 2.5MHz
SIGNAL AT 50MSPS
±0.6dB (Max) Ripple 4th Order Lowpass Filter with
2.5MHz Cutoff
Programmable Differential Gain via Two External
Resistors
Adjustable Output Common Mode Voltage
Operates and Specifi ed with 3V, 5V, ±5V Supplies
86dB S/N with 3V Supply and 1V
Low Distortion, 1V
Fully Differential Inputs and Outputs
Compatible with Popular Differential Amplifi er
Pinouts
SO-8 and DFN-12 Packages
High Speed ADC Antialiasing and DAC Smoothing in
Networking or Cellular Basestation Applications
High Speed Test and Measurement Equipment
Medical Imaging
Drop-in Replacement for Differential Amplifi ers
1MHz: 95dBc 2nd, 88dBc 3rd
LTC1668
–5V
5V
LADCOM
50MHz
CLK
DAC Output Filter
I
I
OUT A
OUT B
RMS
, 800Ω Load
52.3Ω
52.3Ω
RMS
1580Ω
1580Ω
(S8 Pin Numbers Shown)
Output
1
7
2
8
Amplifi er and 2.5MHz Lowpass Filter
LT6600-2.5
+
–5V
5V
3
6
+
0.1μF
0.1μF
4
5
660025 TA01a
V
V
OUT
OUT
+
Very Low Noise, Differential
–10
–20
–30
–40
–50
–60
–70
–80
–90
DESCRIPTION
The LT
with a 4th order 2.5MHz lowpass fi lter approximating a
Chebyshev frequency response. Most differential ampli-
fi ers require many precision external components to tail
or gain and bandwidth. In contrast, with the LT6600-2.5,
two external resistors program differential gain, and the
fi lter’s 2.5MHz cutoff frequency and passband ripple are
internally set. The LT6600-2.5 also provides the necessary
level shifting to set its output common mode voltage to ac-
commodate the reference voltage requirements of A/Ds.
Using a proprietary internal architecture, the LT6600-2.5
integrates an antialiasing fi lter and a differential ampli-
fi er/driver without compromising distortion or low noise
performance. At unity gain the measured in band signal-
to-noise ratio is an impressive 86dB. At higher gains the
input referred noise decreases so the part can process
smaller input differential signals without signifi cantly
degrading the output signal-to-noise ratio.
The LT6600-2.5 also features low voltage operation. The
differential design provides outstanding performance for a
4V
supply. The LT6600-2.5 is available in SO-8 and DFN-12
packages.
For similar devices with higher cutoff frequency, refer
to the LT6600-5, LT6600-10, LT6600-15 and LT6600-20
data sheets.
0
0
P-P
12
BASEBAND SIGNAL
DAC Output Spectrum
signal level while the part operates with a single 3V
24
®
6600-2.5 combines a fully differential amplifi er
36
FREQUENCY (MHz)
48
DAC OUTPUT IMAGE
60
72
84
96
660025 TA01b
108
120
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
LT6600-2.5 Output Spectrum
0
12
LT6600-2.5
24
36
FREQUENCY (MHz)
48
60
72
84
96
660025fe
660025 TA01c
108
1
120

Related parts for LT6600CS8-2.5

LT6600CS8-2.5 Summary of contents

Page 1

... High Speed Test and Measurement Equipment n Medical Imaging n Drop-in Replacement for Differential Amplifi ers L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION DAC Output Filter 5V 52.3Ω ...

Page 2

... LT6600IDF-2.5#PBF LT6600IDF-2.5#TRPBF LEAD BASED FINISH TAPE AND REEL LT6600CS8-2.5 LT6600CS8-2.5#TR LT6600IS8-2.5 LT6600IS8-2.5#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container for the DFN Package. Consult LTC Marketing for information on nonstandard lead based fi nish parts. ...

Page 3

ELECTRICAL CHARACTERISTICS range, otherwise specifi cations are 25°C. Unless otherwise specifi PARAMETER Filter Gain 1580Ω IN Filter Gain ±5V S Filter Gain 402Ω IN ...

Page 4

LT6600-2.5 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 2: This is ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Frequency –60 DIFFERENTIAL INPUT, 2ND HARMONIC DIFFERENTIAL INPUT, –70 3RD HARMONIC SINGLE-ENDED INPUT, 2ND HARMONIC –80 SINGLE-ENDED INPUT, 3RD HARMONIC –90 –100 –110 0.1 1 FREQUENCY (MHz) Distortion vs Frequency –60 DIFFERENTIAL INPUT, 2ND HARMONIC ...

Page 6

LT6600-2.5 TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Input Common Mode Level –40 2ND HARMONIC –50 3RD HARMONIC, GAIN = 2ND HARMONIC, – 3RD HARMONIC, –70 V ...

Page 7

PIN FUNCTIONS (DFN/SO) – and IN (Pins 1, 12/Pins 1, 8): Input Pins. Signals can be applied to either or both input pins through identical external resistors The DC gain from differential inputs IN to the ...

Page 8

LT6600-2.5 APPLICATIONS INFORMATION Interfacing to the LT6600-2.5 Note: The referenced pin numbers correspond to the S8 package. See the Pin Functions for the equivalent DFN-12 package pin numbers. The LT6600-2.5 requires two equal external resistors set the differential ...

Page 9

APPLICATIONS INFORMATION Use Figure 4 to determine the interface between the LT6600-2.5 and a current output DAC. The gain, or “trans- impedance,” is defi ned OUT transimpedance, use the following equation: 1580 • ...

Page 10

LT6600-2.5 APPLICATIONS INFORMATION V can be allowed to fl oat, but it must be bypassed to MID an AC ground with a 0.01μF capacitor or some instability maybe observed. V can be driven from a low impedance MID source, provided ...

Page 11

APPLICATIONS INFORMATION Noise The noise performance of the LT6600-2.5 can be evaluated with the circuit of Figure 6. Given the low noise output of the LT6600-2.5 and the 6dB attenuation of the transformer coupling network, it will be necessary to ...

Page 12

LT6600-2.5 APPLICATIONS INFORMATION – the V pin to provide a heat sink, the thermal resistance will be around 105°C/W. Table 3 can be used as a guide when considering thermal resistance. Table 3. LT6600-2.5 SO-8 Package Thermal Resistance COPPER AREA ...

Page 13

PACKAGE DESCRIPTION 3.38 ±0.05 4.50 ± 0.05 2.65 ± 0.05 3.10 ± 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 TOP MARK (NOTE 6) 0.200 REF NOTE: 1. DRAWING IS ...

Page 14

LT6600-2.5 PACKAGE DESCRIPTION .050 BSC .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT ...

Page 15

... Updated Order Information section 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- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LT6600-2.5 ...

Page 16

... Fixed Gain of 10, Matching ±0.3% 82dB S/N with 3V Supply, SO-8 Package 76dB S/N with 3V Supply, SO-8 Package www.linear.com ● OUT – V OUT 660025 TA02a Transient Response Gain = 1 + 660025 TA02c 500ns/DIV LT 0510 REV E • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2003 660025fe ...

Related keywords