Datasheet

LT1994
6
1994fb
Output Impedance vs Frequency Output Balance vs Frequency
Differential Power Supply
Rejection vs Frequency
Differential Input Referred
Voltage Offset vs Temperature
Common Mode Voltage Offset vs
Temperature
Input Bias Current and Input
Offset Current vs Temperature
Gain Bandwidth vs Temperature
Frequency Response vs
Supply Voltage
Frequency Response vs
Load Capacitance
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50
–750
DIFFERENTIAL V
OS
(µV)
–500
–250
0
250
500
–25
02550
1994 G01
75 100
V
S
= 3V
V
CM
= 1.5V
V
OCM
= 1.5V
FOUR TYPICAL UNITS
TEMPERATURE (°C)
–50
–2.5
COMMON MODE VOLTAGE OFFSET (mV)
0
2.5
5.0
7.5
–25
02550
1994 G02
75 100
V
S
= 3V
V
CM
= 1.5V
V
OCM
= 1.5V
FOUR TYPICAL UNITS
TEMPERATURE (°C)
–50
–30
INPUT BIAS CURRENT (µA)
–25
–20
–15
–10
–25
02550
1994 G03
–1.0
INPUT OFFSET CURRENT (µA)
–0.5
0
0.5
1.0
75 100
I
OS
, V
S
= 3V
I
B
, V
S
= 3V
I
B
, V
S
= ±5V
I
OS
, V
S
= ±5V
TEMPERATURE (°C)
–50
66
GAIN BANDWIDTH (MHz)
72
71
70
69
68
67
–25
02550
1994 G04
75 100
V
S
= 3V
V
S
= ±5V
FREQUENCY (MHz)
0.1
GAIN (dB)
2
1
0
–1
–2
1 10 100
1994 G05
R
F
= R
I
= 499
V
S
= 2.5V
V
S
= 5V
V
S
= ±5V
V
S
= 3V
FREQUENCY (MHz)
0.1
GAIN (dB)
2
1
0
–1
–2
1 10 100
1994 G06
R
F
= R
I
= 499
5pF FROM EACH
OUTPUT TO GROUND
25pF FROM EACH
OUTPUT TO GROUND
V
S
= 2.5V
V
S
= 3V
FREQUENCY (MHz)
0.1
0.1
Z
OUT
OUT
+
, OUT
–
()
1
10
100
1 10 100
1994 G07
V
S
= 3V
R
F
= R
I
= 499
FREQUENCY (Hz)
OUTPUT BALANCE (dB)
–30
–40
–50
–60
–70
–80
–90
1995 G08
DIFFERENTIAL INPUT
SINGLE-ENDED INPUT
V
S
= 3V
$V
OUTCM
$V
OUTDIFF
1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
DIFFERENTIAL PSRR (dB)
110
100
80
60
40
20
90
70
50
30
10
0
1995 G09
V
S
= 3V
V
+
SUPPLY
V
–
SUPPLY
$V
S
$V
OSDIFF
1k 10k 100k 1M 10M 100M