LT1994 Linear Technology, LT1994 Datasheet - Page 6

• Manufacturer Part Number: LT1994
• Description: Low Noise - Low Distortion Fully Differential Input/Output Amplifier/Driver
• Manufacturer: Linear Technology

LT1994
TYPICAL PERFOR A CE CHARACTERISTICS
6
100
100
0.1
90
80
70
60
50
40
30
10
1
1k
0.1
Input Common Mode Rejection vs
Frequency
Output Impedance vs Frequency
V
R
S
F
= R
= 3V
I
10k
= 499Ω
V
V
FREQUENCY (MHz)
S
S
FREQUENCY (Hz)
1
= ±5V
= 3V
100k
–100
–110
–60
–90
–70
–80
1
Differential Distortion vs Input
Amplitude (Single Ended Input)
V
F
R
R
V
IN
S
OCM
1M
F
L
2ND, V
= 3V
= R
= 800Ω
= 1MHz
10
= MID-SUPPLY
I
= 499Ω
CM
W
10M
2
∆V
= V
2ND, V
∆V
OSDIFF
–
1994 G07
ICM
1995 G10
V
U
3RD, V
100M
IN
ICM
100
(V
3
P-P
= 1.5V
ICM
)
3RD, V
= 1.5V
60
50
40
30
20
10
0
0.1
–30
–40
–50
–60
–70
–80
–90
4
Common Mode Output Power
Supply Rejection vs Frequency
V
S
CM
1k
Output Balance vs Frequency
= 3V
V
V
∆V
∆V
+
= V
1994 G13
DIFFERENTIAL INPUT
SINGLE ENDED INPUT
S
V
SUPPLY
OUTDIFF
= 3V
OUTCM
–
–
SUPPLY
5
10k
FREQUENCY (MHz)
1
FREQUENCY (Hz)
100k
10
1M
–100
–110
∆V
–40
–50
–60
–70
–80
–90
INPUT COMMON MODE DC BIAS, IN
10M
∆V
OSOCM
1995 G11
Differential Distortion vs Input
Common Mode Level
S
V
V
F
R
R
V
0
IN
S
IN
F
L
OCM
100
1995 G08
= 3V
= R
= 800Ω
= 1MHz
= 2V
100M
= MID-SUPPLY
I
= 499Ω
P-P
0.5
(SINGLE ENDED)
100
10
1
10
Input Noise vs Frequency
1.0
110
100
V
T
90
80
70
60
50
40
30
20
10
A
S
3RD
0
2ND
= 25°C
= 3V
1k
Differential Power Supply
Rejection vs Frequency
V
100
S
1.5
= 3V
10k
–
FREQUENCY (Hz)
OR IN
1k
www.DataSheet4U.com
2.0
FREQUENCY (Hz)
+
100k
1994 G14
PINS (V)
V
–
10k
2.5
SUPPLY
1M
100k
V
i
e
+
n
n
SUPPLY
10M
1995 G12
∆V
∆V
1M
OSDIFF
1995 G09
10
100
1
S
1994fa
100M