Datasheet
7
1994fb
LT1994
FREQUENCY (Hz)
10
INPUT REFERRED VOLTAGE NOISE DENSITY (nV/√Hz)
1k 100k 1M100 10k
1995 G12
1
10
100
INPUT CURRENT NOISE DENSITY (pA/√Hz)
1
10
100
V
S
= 3V
T
A
= 25°C
e
n
i
n
Input Common Mode Rejection vs
Frequency
Common Mode Output Power
Supply Rejection vs Frequency Input Noise vs Frequency
Differential Distortion vs Input
Amplitude (Single-Ended Input)
Differential Distortion vs Input
Common Mode Level
TYPICAL PERFORMANCE CHARACTERISTICS
1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
INPUT CMRR (dB)
100
90
80
70
60
50
30
40
1995 G10
V
S
= 3V
$V
ICM
$V
OSDIFF
V
S
= p5V
FREQUENCY (MHz)
0.1 1 10 100
COMMON MODE PSRR (dB)
60
50
30
40
20
10
0
1995 G11
V
S
= 3V
$V
S
$V
OSOCM
V
+
SUPPLY
V
–
SUPPLY
Differential Distortion vs
Frequency
V
IN
(V
P-P
)
1
–110
–100
DISTORTION HD2, HD3 (dB)
–90
–80
–70
–60
2
34
1994 G13
5
V
S
= 3V
f
IN
= 1MHz
R
F
= R
I
= 499
R
L
= 800
V
OCM
= MID-SUPPLY
2ND, V
CM
= V
–
3RD, V
CM
= V
–
3RD, V
ICM
= 1.5V
2ND, V
ICM
= 1.5V
INPUT COMMON MODE DC BIAS, IN
–
OR IN
+
PINS (V)
0
–110
–100
DISTORTION HD2, HD3 (dB)
–90
–80
–70
–40
–50
–60
1.0
1.50.5 2.0
1994 G14
2.5
V
S
= 3V
V
IN
= 2V
P-P
(SINGLE ENDED)
f
IN
= 1MHz
R
F
= R
I
= 499
R
L
= 800
V
OCM
= MID-SUPPLY
3RD
2ND
FREQUENCY (Hz)
–110
–100
DISTORTION (dB)
–90
–80
–70
–40
–50
–60
1994 G15
V
S
= 3V
V
IN
= 2V
P-P
(SINGLE ENDED)
f
IN
= 1MHz
R
F
= R
I
= 499
R
L
= 800
V
OCM
= MID-SUPPLY
V
ICM
= MID-SUPPLY
3RD
2ND
100k 1M 10M
Slew Rate vs Temperature
2V Step Response Settling
TEMPERATURE (°C)
–50
60
SLEW RATE (V/µs)
62
64
66
68
–25
02550
1994 G16
75 100
V
S
= 3V
V
S
= ±5V
R
F
= R
I
= 499
25ns/DIV
V
OUT
= V
OUT
+
– V
OUT
–
(0.5V/DIV)
SETTLE VOLTAGE ERROR (2mV/DIV)
1994 G17
V
OUT
–0.1%
ERROR
V
S
= 3V
R
F
= R
I
= 499
+0.1%
ERROR