LT1993-4 Linear Technology, LT1993-4 Datasheet - Page 8

• Manufacturer Part Number: LT1993-4
• Description: 900MHz Low Distortion - Low Noise Differential Amplifier/ADC Driver
• Manufacturer: Linear Technology

LT1993-4
TYPICAL PERFOR A CE CHARACTERISTICS
8
2.28
2.26
2.24
2.22
2.20
2.18
2.16
2.14
2.12
–10
–15
–20
–25
–30
–35
–40
–45
–50
–64
–66
–68
–70
–72
–74
–76
–5
0
1.2
10
0
Input Refl ection Coeffi cient vs
Frequency
Small-Signal Transient Response
Distortion vs Output Common
Mode Voltage, LT1993-4 Driving
LTC2249 14-Bit ADC
MEASURED USING DC800A DEMO BOARD
OUTPUT COMMON MODE VOLTAGE (V)
5
1.4
10
1.6
15
FREQUENCY (MHz)
FILTERED OUTPUTS, NO R
V
OUT
R
20
1.8
TIME (ns)
LOAD
= 70MHz 2V
HD3
HD2
100
25
= 100Ω PER OUTPUT
2.0
30
35
2.2
P-P
W
40
2.4
19934 G25
19934 G19
19934 G22
LOAD
45
U
1000
2.6
50
–10
–15
–20
–25
–30
–35
–40
–45
–50
–2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
–5
1
4
4
3
2
0
2
0
0
0
10
0
Output Refl ection Coeffi cient vs
Frequency
Large-Signal Transient Response
Turn-On Time
MEASURED USING DC800A DEMO BOARD
5
125
10
15
FREQUENCY (MHz)
250
R
R
TIME (ns)
20
LOAD
TIME (ns)
LOAD
100
25
= 100Ω PER OUTPUT
= 100Ω PER OUTPUT
375
30
ENABLE
+OUT
–OUT
35
500
40
''!" / $
19934 G20
19934 G23
45
625
1000
50
100
–2
2.5
3.5
3.0
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
4.0
1
3
2
0
4
2
0
4
0
0
0
1
0
PSRR, CMRR vs Frequency
Overdrive Recovery Time
Turn-Off Time
25
+OUT
–OUT
125
50
ENABLE
www.DataSheet4U.com
75
FREQUENCY (MHz)
10
R
PER OUTPUT
250
LOAD
R
+OUT
–OUT
100
TIME (ns)
LOAD
TIME (ns)
125
= 100Ω
UNFILTERED OUTPUTS
= 100Ω PER OUTPUT
375
150 175
100
PSRR
CMRR
500
200
''!" / %
19934 G21
225
''!" / "
19934fa
625
1000
250