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LT6402CUD-20#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
7
640220fa
LT6402-20
FREQUENCY (MHz)
10
NOISE FIGURE (dB)
30
25
20
15
10
5
100 1000
64022 G15
MEASURED USING DC954A DEMO BOARD
FREQUENCY (MHz)
10
INPUT REFERRED NOISE VOLTAGE (nV/√Hz)
8
6
4
5
7
1
2
3
0
100 1000
64022 G16
FREQUENCY (MHz)
1
–70
ISOLATION (dB)
–50
–30
10 100 1000
64022 G17
–90
–80
–60
–40
–100
–110
UNFILTERED OUTPUTS
FREQUENCY (MHz)
1
INPUT IMPEDANCE (MAGNITUDE Ω, PHASE°)
400
350
300
250
200
150
100
50
0
–50
–100
10 100 1000
64022 G18
IMPEDANCE MAGNITUDE
IMPEDANCE PHASE
FREQUENCY (MHz)
10
0
OUTPUT IMPEDANCE (Ω)
1
10
1000
100
100 1000
64022 G19
UNFILTERED OUTPUTS
FREQUENCY (MHz)
1
–15
INPUT REFLECTION COEFFICIENT (S11)
–10
–5
0
10 100 1000
34022 G20
–20
–25
–30
–35
MEASURED USING
DC954A DEMO BOARD
FREQUENCY (MHz)
1
–20
OUTPUT REFLECTION COEFFICIENT (S22)
–10
0
10 100 1000
64022 G21
–30
–25
–15
–5
–35
–40
MEASURED USING
DC954A DEMO BOARD
FREQUENCY (MHz)
1
40
PSRR, CMRR (dB)
60
80
10 100 1000
64022 G22
20
0
120
100
50
10
30
70
110
90
UNFILTERED OUTPUTS
PSRR
CMRR
2.15
2.20
2.25
OUTPUT VOLTAGE (V)
TIME (5ns/DIV)
64022 G23
R
LOAD
= 100Ω PER OUTPUT
Noise Figure vs Frequency
Input Referred Noise Voltage
vs Frequency Isolation vs Frequency
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Differential Input Impedance
vs Frequency
Differential Output Impedance
vs Frequency
Input Refl ection Coeffi cient
vs Frequency
Output Refl ection Coeffi cient
vs Frequency
PSRR, CMRR vs Frequency Small-Signal Transient Response
LT6402-20
8
640220fa
OUTPUT VOLTAGE (V)
1.8
3.0
3.2
3.4
TIME (10ns/DIV)
64022 G24
1.4
2.6
2.2
1.6
2.8
1.2
2.4
2.0
R
LOAD
= 100Ω PER OUTPUT
OUTPUT VOLTAGE (V)
2.5
3.0
3.5
TIME (25ns/DIV)
64022 G25
1.5
0
4.0
2.0
1.0
0.5
R
LOAD
= 100Ω PER OUTPUT
+OUT
–OUT
OUTPUT COMMON MODE VOLTAGE (V)
1 1.2
–90
DISTORTION (dBc)
–86
–80
1.4
1.8
2.0
64022 G26
–88
–82
–84
1.6
2.2
2.4
FILTERED OUTPUTS, NO R
LOAD
V
OUT
= 20MHz 2V
P-P
HD3
HD2
OUTPUT VOLTAGE (V)
1.5
2.0
2.5
TIME (125ns/DIV)
64022 G27
1.0
0.5
0
5V
0V
3.0
3.5
4.0
R
LOAD
= 100
PER OUTPUT
+OUT
–OUT
ENABLE
+OUT
–OUT
OUTPUT VOLTAGE (V)
1.5
2.0
2.5
TIME (250ns/DIV)
64022 G28
1.0
0.5
0
5V
0V
3.0
3.5
4.0
R
LOAD
= 100
PER OUTPUT
ENABLE
FREQUENCY (MHz)
0
AMPLITUDE (dBFS)
10 20
30
40
64022 G29
–120
–110
–100
–80
–60
–40
–20
–90
–70
–50
–30
–10
0
515
25
35
8192 POINT FFT
f
IN
= 10MHz, –1dBFS
FILTERED OUTPUTS
FREQUENCY (MHz)
0
AMPLITUDE (dBFS)
10 20
30
40
64022 G30
–120
–110
–100
–80
–60
–40
–20
–90
–70
–50
–30
–10
0
515
25
35
8192 POINT FFT
f
IN
= 20MHz, –1dBFS
FILTERED OUTPUTS
FREQUENCY (MHz)
0
AMPLITUDE (dBFS)
10 20
30
40
64022 G31
–120
–110
–100
–80
–60
–40
–20
–90
–70
–50
–30
–10
0
515
25
35
8192 POINT FFT
f
IN
= 25MHz, –1dBFS
FILTERED OUTPUTS
FREQUENCY (MHz)
0
–140
AMPLITUDE (dBFS)
–120
–100
–80
0
–40
5
10
12.5
–20
–60
–130
–110
–90
–10
–50
–30
–70
2.5 7.5
15
17.5
20
22.5
64022 G32
32768 POINT FFT
TONE 1 AT 19.5MHz, –7dBFS
TONE 2 AT 20.5MHz, –7dBFS
FILTERED OUTPUTS
TYPICAL PERFORMANCE CHARACTERISTICS
Large-Signal Transient Response Overdrive Recovery Time
Distortion vs Output Common
Mode Voltage LT6402-20 Driving
LTC2249 14-Bit ADC
Turn-On Time Turn-Off Time
10MHz 8192 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
20MHz 8192 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
25MHz 8192 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
20MHz 2-Tone 32768 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
9
640220fa
LT6402-20
V
OCM
(Pin 2): This pin sets the output common mode
voltage. Without additional biasing, both inputs bias to
this voltage as well. This input is high impedance.
V
CCA
, V
CCB
, V
CCC
(Pins 3, 10, 1): Positive Power Supply
(Normally Tied to 5V). All three pins must be tied to the
same voltage. Bypass each pin with 1000pF and 0.1µF
capacitors as close to the package as possible. Split
supplies are possible as long as the voltage between V
CC
and V
EE
is 5V.
V
EEA
, V
EEB
, V
EEC
(Pins 4, 9, 12): Negative Power Supply
(Normally Tied to Ground). All three pins must be tied to
the same voltage. Split supplies are possible as long as
the voltage between V
CC
and V
EE
is 5V. If these pins are
not tied to ground, bypass each pin with 1000pF and 0.1µF
capacitors as close to the package as possible.
+OUT, –OUT (Pins 5, 8): Outputs (Unfi ltered). These
pins are high bandwidth, low-impedance outputs. The DC
output voltage at these pins is set to the voltage applied
at V
OCM
.
+OUTFILTERED, –OUTFILTERED (Pins 6, 7): Filtered
Outputs. These pins add a series 50Ω resistor from the
unfi ltered outputs and three 14pF capacitors. Each output
has 14pF to V
EE
, plus an additional 14pF between each pin
(See the Block Diagram). This fi lter has a –3dB bandwidth
of 75MHz.
⎯
E
⎯
N
⎯
A
⎯
B
⎯
L
⎯
E (Pin 11): This pin is a TTL logic input referenced
to the V
EEC
pin. If low, the LT6402 is enabled and draws
typically 30mA of supply current. If high, the LT6402 is
disabled and draws typically 250µA.
+INA, +INB (Pins 15, 16): Positive Inputs. These pins are
normally tied together. These inputs may be DC- or AC-
coupled. If the inputs are AC-coupled, they will self-bias
to the voltage applied to the V
OCM
pin.
–INA, –INB (Pins 14, 13): Negative Inputs. These pins are
normally tied together. These inputs may be DC- or AC-
coupled. If the inputs are AC-coupled, they will self-bias
to the voltage applied to the V
OCM
pin.
Exposed Pad (Pin 17): Tie the pad to V
EEC
(Pin 12). If split
supplies are used, DO NOT tie the pad to ground.
PI FU CTIO S
UUU
+
–
14
–
INA
5
+OUT
6402 BD
3
V
CCA
10
V
CCB
1
V
CCC
11
ENABLE
13
–
INB
14pF
V
CCA
A
V
EEA
V
EEA
50Ω
6
+OUTFILTERED
–
+
16
+INA
8
–OUT
15
+INB
V
CCB
B
V
EEB
V
EEB
100Ω
100Ω
100Ω
100Ω
500Ω
500Ω
500Ω
500Ω
50Ω
14pF
14pF
7
–OUTFILTERED
12
V
EEC
9
V
EEB
4
V
EEA
+
–
V
EEC
C
V
CCC
2
V
OCM
BIAS
BLOCK DIAGRA
W
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LT6402CUD-20#TRPBF

Mfr. #:
Buy LT6402CUD-20#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
High Speed Operational Amplifiers 300MHz L Dist, L N Diff Amp/ADC Drvr (AV
Lifecycle:
New from this manufacturer.
Delivery:
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