LT6402 Linear Technology Corporation, LT6402 Datasheet - Page 8

• Manufacturer Part Number: LT6402
• Description: 300mhz Low Distortion, Low Noise Differential Ampli?er/ Adc Driver Av = 20db
• Manufacturer: Linear Technology Corporation

LT6402-20
TYPICAL PERFORMANCE CHARACTERISTICS
8
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
2.2
2.0
3.5
3.0
2.0
1.5
1.0
3.4
3.2
3.0
2.8
2.6
2.4
1.8
1.6
1.4
1.2
4.0
2.5
0.5
0
0
0
20MHz 8192 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
Large-Signal Transient Response
Turn-On Time
R
R
PER OUTPUT
LOAD
LOAD
ENABLE
5
= 100Ω PER OUTPUT
= 100
10
FREQUENCY (MHz)
TIME (125ns/DIV)
TIME (10ns/DIV)
15
20
8192 POINT FFT
f
FILTERED OUTPUTS
IN
25
= 20MHz, –1dBFS
+OUT
–OUT
30
35
64022 G24
64022 G27
64022 G30
40
0V
5V
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2.0
1.0
4.0
4.0
3.5
3.0
2.5
1.5
0.5
0
0
0
0
Overdrive Recovery Time
Turn-Off Time
25MHz 8192 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
8192 POINT FFT
f
FILTERED OUTPUTS
R
R
PER OUTPUT
IN
LOAD
LOAD
= 25MHz, –1dBFS
5
= 100Ω PER OUTPUT
= 100
10
+OUT
–OUT
FREQUENCY (MHz)
TIME (250ns/DIV)
TIME (25ns/DIV)
15
+OUT
–OUT
20
ENABLE
25
30
35
64022 G25
64022 G31
64022 G28
40
5V
0V
–100
–110
–120
–130
–140
–100
–110
–120
–60
–70
–80
–90
–80
–82
–84
–86
–88
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
0
0
0
Distortion vs Output Common
Mode Voltage LT6402-20 Driving
LTC2249 14-Bit ADC
1
10MHz 8192 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
0
20MHz 2-Tone 32768 Point FFT,
LT6402-20 Driving
LTC2249 14-Bit ADC
FILTERED OUTPUTS, NO R
V
32768 POINT FFT
TONE 1 AT 19.5MHz, –7dBFS
TONE 2 AT 20.5MHz, –7dBFS
FILTERED OUTPUTS
OUT
OUTPUT COMMON MODE VOLTAGE (V)
2.5
1.2
5
= 20MHz 2V
5
10
1.4
FREQUENCY (MHz)
FREQUENCY (MHz)
7.5
15
P-P
1.6
10 12.5
HD3
HD2
20
1.8
8192 POINT FFT
f
FILTERED OUTPUTS
IN
LOAD
25
= 10MHz, –1dBFS
15 17.5 20 22.5
2.0
30
2.2
35
64022 G32
64022 G29
640220fa
64022 G26
2.4
40