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LTC6400CUD-8#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LTC6400-8
4
64008f
AC ELECTRICAL CHARACTERISTICS
Specifi cations are at T
A
= 25°C. V
+
= 3V, V
–
= 0V, V
OCM
= 1.25V,
ENABLE = 0V, No R
L
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
–3dBBW –3dB Bandwidth 200mV
P-P,OUT
(Note 6) 1.2 2.2 GHz
0.5dBBW Bandwidth for 0.5dB Flatness 200mV
P-P,OUT
(Note 6) 0.43 GHz
0.1dBBW Bandwidth for 0.1dB Flatness 200mV
P-P,OUT
(Note 6) 0.2 GHz
1/f 1/f Noise Corner 16.5 kHz
SR Slew Rate V
OUT
= 2V Step (Note 6) 3810 V/μs
t
S1%
1% Settling Time V
OUT
= 2V
P-P
(Note 6) 1.8 ns
t
OVDR
Overdrive Recovery Time V
OUT
= 1.9V
P-P
(Note 6) 18 ns
t
ON
Turn-On Time Differential Output Reaches 90% of
Steady State Value
10 ns
t
OFF
Turn-Off Time Differential Output Drops to 10% of
Original Value
12 ns
–3dBBW
VOCM
V
OCM
Pin Small Signal –3dB BW 0.1V
P-P
at V
OCM
, Measured Single-Ended at
Output (Note 6)
14 MHz
10MHz Input Signal
HD2,10M/HD3,10M Second/Third Order Harmonic Distortion V
OUT
= 2V
P-P
, R
L
= 200Ω –118/–98 dBc
V
OUT
= 2V
P-P
, No R
L
–120/–109 dBc
IMD3,10M Third-Order Intermodulation
(f1 = 9.5MHz f2 = 10.5MHz)
V
OUT
= 2V
P-P
Composite, R
L
= 200Ω –99 dBc
V
OUT
= 2V
P-P
Composite, No R
L
–112 dBc
OIP3,10M Equivalent Third-Order Output Intercept
Point (f1 = 9.5MHz f2 = 10.5MHz)
V
OUT
= 2V
P-P
Composite, No R
L
(Note 7) 60 dBm
P1dB,10M 1dB Compression Point R
L
= 375Ω (Notes 5, 7) 18.2 dBm
NF10M Noise Figure R
S
= 400Ω, R
L
= 375Ω 7.6 dB
e
IN,10M
Input Referred Voltage Noise Density Includes Resistors (Short Inputs) 3.7 nV/√Hz
e
ON,10M
Output Referred Voltage Noise Density Includes Resistors (Short Inputs) 9.3 nV/√Hz
70MHz Input Signal
HD2,70M/HD3,70M Second/Third Order Harmonic Distortion V
OUT
= 2V
P-P
, R
L
= 200Ω –97/–85 dBc
V
OUT
= 2V
P-P
, No R
L
–100/–98 dBc
IMD3,70M Third-Order Intermodulation
(f1 = 69.5MHz f2 = 70.5MHz)
V
OUT
= 2V
P-P
Composite, R
L
= 200Ω –90 dBc
V
OUT
= 2V
P-P
Composite, No R
L
–99 dBc
OIP3,70M Equivalent Third-Order Output Intercept
Point (f1 = 69.5MHz f2 = 70.5MHz)
V
OUT
= 2V
P-P
Composite, No R
L
(Note 7) 53.4 dBm
P1dB,70M 1dB Compression Point R
L
= 375Ω (Notes 5, 7) 19.2 dBm
NF70M Noise Figure R
S
= 400Ω, R
L
= 375Ω 7.6 dB
e
IN,70M
Input Referred Voltage Noise Density Includes Resistors (Short Inputs) 3.7 nV/√Hz
e
ON,70M
Output Referred Voltage Noise Density Includes Resistors (Short Inputs) 9.3 nV/√Hz
140MHz Input Signal
HD2,140M/
HD3,140M
Second/Third Order Harmonic Distortion 2V
P-P,OUT
, R
L
= 200Ω –86/–71 dBc
2V
P-P,OUT
, No R
L
–91/–81 dBc
IMD3,140M Third-Order Intermodulation
(f1 = 139.5MHz f2 = 140.5MHz)
2V
P-P,OUT
Composite, R
L
= 200Ω –79 dBc
2V
P-P,OUT
Composite, No R
L
–84 dBc
OIP3,140M Third-Order Output Intercept Point
(f1 = 139.5MHz f2 = 140.5MHz)
2V
P-P,OUT
Composite, No R
L
(Notes 7) 45.8 dBm
LTC6400-8
5
64008f
AC ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
P1dB,140M 1dB Compression Point R
L
= 375Ω (Notes 5, 7) 19.2 dBm
NF140M Noise Figure R
S
= 400Ω, R
L
= 375Ω 7.7 dB
e
IN,140M
Input Referred Voltage Noise Density Includes Resistors (Short Inputs) 3.7 nV/√Hz
e
ON,140M
Output Referred Voltage Noise Density Includes Resistors (Short Inputs) 9.3 nV/√Hz
240MHz Input Signal
HD2,240M/
HD3,240M
Second-Order Harmonic Distortion 2V
P-P,OUT
, R
L
= 200Ω –71/–53 dBc
2V
P-P,OUT
, No R
L
–73/–59 dBc
IMD3,240M Third-Order Intermodulation
(f1 = 239.5MHz f2 = 240.5MHz)
2V
P-P,OUT
Composite, R
L
= 200Ω –64 dBc
2V
P-P,OUT
Composite, No R
L
–68 dBc
OIP3,240M Third-Order Output Intercept Point
(f1 = 239.5MHz f2 = 240.5MHz)
2V
P-P,OUT
Composite, No R
L
(Note 7) 37.8 dBm
P1dB,240M 1dB Compression Point R
L
= 375Ω (Notes 5, 7) 18.2 dBm
NF240M Noise Figure R
S
= 400Ω, R
L
= 375Ω 8.1 dB
e
N, 240M
Input Referred Voltage Noise Density Includes Resistors (Short Inputs) 3.7 nV/√Hz
e
ON,240M
Output Referred Voltage Noise Density Includes Resistors (Short Inputs) 9.6 nV/√Hz
300MHz Input Signal
HD2,300M/
HD3,300M
Second-Order Harmonic Distortion 2V
P-P,OUT
, R
L
= 200Ω –67/–46 dBc
2V
P-P,OUT
, No R
L
–69/–50 dBc
IMD3,300M Third-Order Intermodulation
(f1 = 299.5MHz f2 = 300.5MHz)
2V
P-P,OUT
Composite, R
L
= 200Ω –57 dBc
2V
P-P,OUT
Composite, No R
L
–61 dBc
OIP3,300M Third-Order Output Intercept Point
(f1 = 299.5MHz f2 = 300.5MHz)
2V
P-P,OUT
Composite, No R
L
(Note 7) 34.8 dBm
P1dB,300M 1dB Compression Point R
L
= 375Ω (Notes 5, 7) 17.6 dBm
NF300M Noise Figure R
S
= 400Ω, R
L
= 375Ω 8.5 dB
e
N,300M
Input Referred Voltage Noise Density Includes Resistors (Short Inputs) 3.8 nV/√Hz
e
ON,300M
Output Referred Voltage Noise Density Includes Resistors (Short Inputs) 10 nV/√Hz
IMD3,280M/320M Third-Order Intermodulation
(f1 = 280MHz f2 = 320MHz) Measured
at 360MHz
2V
P-P,OUT
Composite, R
L
= 375Ω –59 –53 dBc
Specifi cations are at T
A
= 25°C. V
+
= 3V, V
–
= 0V, V
OCM
= 1.25V,
ENABLE = 0V, No R
L
unless otherwise noted.
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: Input pins (+IN, –IN) are protected by steering diodes to either
supply. If the inputs go beyond either supply rail, the input current should
be limited to less than 10mA.
Note 3: The LTC6400C and LTC6400I are guaranteed functional over the
operating temperature range of –40°C to 85°C.
Note 4: The LTC6400C is guaranteed to meet specifi ed performance from
0°C to 70°C. It is designed, characterized and expected to meet specifi ed
performance from –40°C to 85°C but is not tested or QA sampled at these
temperatures. The LTC6400I is guaranteed to meet specifi ed performance
from –40°C to 85°C.
Note 5: Input and output baluns used. See Test Circuit A.
Note 6: Measured using Test Circuit B. R
L
= 87.5Ω per output.
Note 7: Since the LTC6400-8 is a feedback amplifi er with low output
impedance, a resistive load is not required when driving an AD converter.
Therefore, typical output power is very small. In order to compare the
LTC6400-8 with amplifi ers that require 50Ω output load, the LTC6400-8
output voltage swing driving a given R
L
is converted to OIP3 and P1dB as
if it were driving a 50Ω load. Using this modifi ed convention, 2V
P-P
is by
defi nition equal to 10dBm, regardless of actual R
L
.
LTC6400-8
6
64008f
TIME (ns)
OUTPUT VOLTAGE (V)
2.5
0.5
1.0
2.0
1.5
0
64008 G09
–OUT
+OUT
R
L
= 87.5Ω PER OUTPUT
TEST CIRCUIT B
0246810
TIME (ns)
0
OUTPUT VOLTAGE (V)
1.35
1.20
1.25
1.30
1.15
2468
10
64008 G08
–OUT
+OUT
R
L
= 87.5Ω PER OUTPUT
TEST CIRCUIT B
FREQUENCY (MHz)
0
NOISE FIGURE (dB)
INPUT REFERRED NOISE VOLTAGE (nV/√Hz)
5.0
4.0
2.0
0
3.0
1.0
4.5
2.5
0.5
3.5
1.5
10.0
9.0
7.0
5.0
8.0
6.0
9.5
7.5
5.5
8.5
6.5
100 30050 200150 250
64008 G07
NOISE FIGURE
NF TEST: R
S
= 400Ω
EN
FREQUENCY (MHz)
10
S PARAMETERS (dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
100 1000 3000
64008 G04
S11
S22
S12
TEST CIRCUIT B
TYPICAL PERFORMANCE CHARACTERISTICS
Input and Output Refl ection and
Reverse Isolation vs Frequency
Input and Output Impedance vs
Frequency PSRR and CMRR vs Frequency
Noise Figure and Input Referred
Noise Voltage vs Frequency Small Signal Transient Response Large Signal Transient Response
FREQUENCY (MHz)
10
IMPEDANCE MAGNITUDE (Ω)
500
250
200
350
300
450
400
150
100
50
0
PHASE (DEGREES)
100
60
80
20
–60
40
–40
0
–20
–80
–100
100 1000
64008 G05
Z
IN
Z
OUT
Z
IN
Z
OUT
PHASE
IMPEDANCE MAGNITUDE
FREQUENCY (MHz)
1
PSRR, CMRR (dB)
80
70
60
50
40
30
0
10
20
10 100 1000
64008 G06
PSRR
CMRR
FREQUENCY (MHz)
0
PHASE (DEGREE)
0
–50
–100
–150
–200
GROUP DELAY (ns)
0.8
0.6
0.4
0.2
0
200 400 600 800
1000
64008 G03
PHASE
GROUP DELAY
TEST CIRCUIT B
Frequency Response Gain 0.1dB Flatness
S21 Phase and Group Delay vs
Frequency
FREQUENCY (MHz)
10 100 1000 3000
GAIN (dB)
14
10
8
6
4
2
0
12
–4
–2
64008 G01
TEST CIRCUIT B
FREQUENCY (MHz)
10 100 1000 3000
GAIN FLATNESS (dB)
1.0
0.8
–0.8
0.6
–0.6
0.4
–0.4
0.2
–0.2
0
–1.0
64008 G02
TEST CIRCUIT B
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LTC6400CUD-8#TRPBF

Mfr. #:
Buy LTC6400CUD-8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
High Speed Operational Amplifiers 3GHz Low Noise/Low Distortion Differential Amp
Lifecycle:
New from this manufacturer.
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