OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LT6600CS8-5#TRPBF

P1-P3P4-P6P7-P9P10-P12
LT6600-5
1
66005fb
TYPICAL APPLICATION
DESCRIPTION
Very Low Noise, Differential
Amplifi er and 5MHz Lowpass Filter
The LT
®
6600-5 combines a fully differential amplifi er with a
4th order 5MHz lowpass fi lter approximating a Chebyshev
frequency response. Most differential amplifi ers require
many precision external components to tailor gain and
bandwidth. In contrast, with the LT6600-5, two external
resistors program differential gain, and the fi lter’s 5MHz
cutoff frequency and passband ripple are internally set.
The LT6600-5 also provides the necessary level shifting
to set its output common mode voltage to accommodate
the reference voltage requirements of A/Ds.
Using a proprietary internal architecture, the LT6600-5
integrates an anti-aliasing fi lter and a differential ampli-
fi er/driver without compromising distortion or low noise
performance. At unity gain the measured in band sig-
nal-to-noise ratio is an impressive 82dB. 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 LT6600-5 also features low voltage operation. The
differential design provides outstanding performance for
a 2V
P-P
signal level while the part operates with a single
3V supply.
For similar devices with other cutoff frequencies, refer to
the LT6600-20, LT6600-10 and LT6600-2.5.
Dual, Matched, 5MHz Lowpass Filter
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
FEATURES
APPLICATIONS
n
Programmable Differential Gain via Two External
Resistors
n
Adjustable Output Common Mode Voltage
n
Operates and Specifi ed with 3V, 5V, ±5V Supplies
n
0.5dB Ripple 4th Order Lowpass Filter with 5MHz
Cutoff
n
82dB S/N with 3V Supply and 2V
P-P
Output
n
Low Distortion, 2V
P-P
, 800 Load
1MHz: 93dBc 2nd, 96dBc 3rd
n
Fully Differential Inputs and Outputs
n
Compatible with Popular Differential Amplifi er
Pinouts
n
Available in an SO-8 Package
n
High Speed ADC Anti-Aliasing and DAC Smoothing in
Networking or Cellular Base Station Applications
n
High Speed Test and Measurement Equipment
n
Medical Imaging
n
Drop-in Replacement for Differential Amplifi ers
5MHz Phase Distribution
(50 Units)
–
–
+
+
–
–
+
+
3V
3V
R
IN
V
OCM
(1V-1.5V)
I
IN
Q
IN
Q
OUT
I
OUT
R
IN
R
IN
R
IN
0.1µF
0.01µF
0.01µF
0.1µF
GAIN =
806Ω
R
IN
5MHz PHASE (DEG)
PERCENTAGE OF UNITS (%)
66005 TA01
30
25
20
15
10
5
0
–135 –134 –133–132.5–134.5 –133.5 –132–131.5
LT6600-5
LT6600-5
3
4
5
6
7
1
2
8
3
4
5
6
7
1
2
8
LT6600-5
2
66005fb
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage .................................................11V
Input Current (Note 8) ..........................................±10mA
Operating Temperature Range (Note 6).... –40°C to 85°C
Specifi ed Temperature Range (Note 7) .... –40°C to 85°C
Junction Temperature ........................................... 150°C
Storage Temperature Range ...................–65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
(Note 1)
TOP VIEW
IN
+
V
MID
V
–
OUT
–
IN
–
V
OCM
V
+
OUT
+
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
T
JMAX
= 150°C, θ
JA
= 100°C/W
PARAMETER CONDITIONS MIN TYP MAX UNITS
Filter Gain, V
S
= 3V V
IN
= 2V
P-P
, f
IN
= DC to 260kHz – 0.5 0 0.5 dB
V
IN
= 2V
P-P
, f
IN
= 500k (Gain Relative to 260kHz)
l
–0.15 0 0.1 dB
V
IN
= 2V
P-P
, f
IN
= 2.5MHz (Gain Relative to 260kHz)
l
–0.4 – 0.1 0.3 dB
V
IN
= 2V
P-P
, f
IN
= 4MHz (Gain Relative to 260kHz)
l
–0.7 –0.1 0.6 dB
V
IN
= 2V
P-P
, f
IN
= 5MHz (Gain Relative to 260kHz)
l
–1.1 –0.2 0.8 dB
V
IN
= 2V
P-P
, f
IN
= 15MHz (Gain Relative to 260kHz)
l
– 28 –25 dB
V
IN
= 2V
P-P
, f
IN
= 25MHz (Gain Relative to 260kHz)
l
–44 dB
Filter Gain, V
S
= 5V V
IN
= 2V
P-P
, f
IN
= DC to 260kHz – 0.5 0 0.5 dB
V
IN
= 2V
P-P
, f
IN
= 500k (Gain Relative to 260kHz)
l
– 0.15 0 0.1 dB
V
IN
= 2V
P-P
, f
IN
= 2.5MHz (Gain Relative to 260kHz)
l
–0.4 –0.1 0.3 dB
V
IN
= 2V
P-P
, f
IN
= 4MHz (Gain Relative to 260kHz)
l
– 0.7 –0.1 0.6 dB
V
IN
= 2V
P-P
, f
IN
= 5MHz (Gain Relative to 260kHz)
l
– 1.1 –0.2 0.8 dB
V
IN
= 2V
P-P
, f
IN
= 15MHz (Gain Relative to 260kHz)
l
–28 –25 dB
V
IN
= 2V
P-P
, f
IN
= 25MHz (Gain Relative to 260kHz)
l
–44 dB
Filter Gain, V
S
= ±5V V
IN
= 2V
P-P
, f
IN
= DC to 260kHz –0.6 –0.1 0.4 dB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT6600CS8-5#PBF LT6600CS8-5#TRPBF 66005 8-Lead Plastic SO –40°C to 85°C
LT6600IS8-5#PBF LT6600IS8-5#TRPBF 6600I5 8-Lead Plastic SO –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT6600CS8-5 LT6600CS8-5#TR 66005 8-Lead Plastic SO –40°C to 85°C
LT6600IS8-5 LT6600IS8-5#TR 6600I5 8-Lead Plastic SO –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. Unless otherwise specifi ed V
S
= 5V (V
+
= 5V, V
–
= 0V), R
IN
= 806, and R
LOAD
= 1k.
LT6600-5
3
66005fb
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 the temperature coeffi cient of the internal feedback
resistors assuming a temperature independent external resistor (R
IN
).
Note 3: The input common mode voltage is the average of the voltages
applied to the external resistors (R
IN
). Specifi cation guaranteed for
R
IN
≥ 229Ω.
Note 4: Distortion is measured differentially using a differential stimulus.
The input common mode voltage, the voltage at Pin 2, and the voltage at
Pin 7 are equal to one half of the total power supply voltage.
The l denotes the specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. Unless otherwise specifi ed V
S
= 5V (V
+
= 5V, V
–
= 0V), R
IN
= 806, and R
LOAD
= 1k.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Filter Gain, R
IN
= 229 V
IN
= 0.5V
P-P
, f
IN
= DC to 260kHz V
S
= 3V
V
S
= 5V
V
S
= ±5V
10.4
10.3
10.1
10.9
10.8
10.7
11.5
11.4
11.3
dB
dB
dB
Filter Gain Temperature Coeffi cient (Note 2) f
IN
= 260kHz, V
IN
= 2V
P-P
780 ppm/C
Noise Noise BW = 10kHz to 5MHz, R
IN
= 806 45 µV
RMS
Distortion (Note 4) 1MHz, 2V
P-P
, R
L
= 800 2nd Harmonic
3rd Harmonic
93
96
dBc
dBc
5MHz, 2V
P-P
, R
L
= 800 2nd Harmonic
3rd Harmonic
66
73
dBc
dBc
Differential Output Swing Measured Between Pins 4 and 5 V
S
= 5V
Pin 7 Shorted to Pin 2 V
S
= 3V
l
l
3.85
3.85
4.8
4.8
V
P-P DIFF
V
P-P DIFF
Input Bias Current Average of Pin 1 and Pin 8
l
–70 –30 µA
Input Referred Differential Offset R
IN
= 806 V
S
= 3V
V
S
= 5V
V
S
= ±5V
l
l
l
5
10
8
25
30
35
mV
mV
mV
R
IN
= 229 V
S
= 3V
V
S
= 5V
V
S
= ±5V
l
l
l
5
5
5
13
16
20
mV
mV
mV
Differential Offset Drift 10 µV/°C
Input Common Mode Voltage (Note 3) Differential Input = 500mV
P-P
, V
S
= 3V
R
IN
= 229 V
S
= 5V
V
S
= ±5V
l
l
l
0.0
0.0
–2.5
1.5
3.0
1.0
V
V
V
Output Common Mode Voltage (Note 5) Differential Output = 2V
P-P
, V
S
= 3V
Pin 7 = Open V
S
= 5V
V
S
= ±5V
l
l
l
1.0
1.5
–2.5
1.5
3.0
2.0
V
V
V
Output Common Mode Offset
(with Respect to Pin 2)
V
S
= 3V
V
S
= 5V
V
S
= ±5V
l
l
l
–25
–30
–55
5
0
–5
50
45
35
mV
mV
mV
Common Mode Rejection Ratio 61 dB
Voltage at V
MID
(Pin 7) V
S
= 5
V
S
= 3
l
2.46 2.51
1.5
2.55 V
V
V
MID
Input Resistance
l
4.3 5.5 7.7 kΩ
V
OCM
Bias Current V
OCM
= V
MID
= V
S
/2 V
S
= 5
V
S
= 3
l
l
–15
–10
–3
–3
µA
µA
Power Supply Current V
S
= 3V, V
S
= 5
V
S
= 3V, V
S
= 5
V
S
= ±5V
l
l
28
30
31
34
38
mA
mA
mA
Note 5: Output common mode voltage is the average of the voltages at
Pins 4 and 5. The output common mode voltage is equal to the voltage
applied to Pin 2.
Note 6: The LT6600C is guaranteed functional over the operating
temperature range –40°C to 85°C.
Note 7: The LT6600C is guaranteed to meet 0°C to 70°C specifi cations and
is designed, characterized and expected to meet the extended temperature
limits, but is not tested at –40°C and 85°C. The LT6600I is guaranteed to
meet specifi ed performance from –40°C to 85°C.
Note 8: The inputs are protected by back-to-back diodes. If the differential
input voltage exceeds 1.4V, the input current should be limited to less than
10mA.
P1-P3P4-P6P7-P9P10-P12

LT6600CS8-5#TRPBF

Mfr. #:
Buy LT6600CS8-5#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Differential Amplifiers Very L N, Diff Amp & 5MHz Lpass Filt
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet