Datasheet

5
LT1468
TYPICAL PERFOR A CE CHARACTERISTICS
UW
INPUT COMMON MODE VOLTAGE (V)
–15
INPUT BIAS CURRENT (nA)
–20
0
20
0
10
1468 G03
–40
–60
–80
–10 –5 5
40
I
B
–
I
B
+
60
80
15
V
S
= ±15V
T
A
= 25°C
Input Bias Current
vs Input Common Mode Voltage
TEMPERATURE (°C)
–50
0
10
I
B
–
I
B
+
30
25 75
1468 G04
–10
–20
–25 0
50 100 125
–30
–40
20
INPUT BIAS CURRENT (nA)
V
S
= ±15V
Input Bias Current
vs Temperature
SUPPLY VOLTAGE (±V)
0
1
SUPPLY CURRENT (mA)
2
3
4
5
6
125°C
25°C
–55°C
7
5101520
1468 G01
Supply Current vs Supply Voltage
and Temperature
SUPPLY VOLTAGE (±V)
0
V
–
COMMON MODE RANGE (V)
1.0
2.0
–2.0
3
6
912
1468 G02
15
–1.0
0.5
1.5
–1.5
V
+
–0.5
18
T
A
= 25°C
∆V
OS
< 100µV
Input Common Mode Range
vs Supply Voltage
0.1Hz to 10Hz Voltage Noise
TIME (1s/DIV)
VOLTAGE NOISE (100nV/DIV)
1468 G06
V
S
= ±15V
Input Noise Spectral Density
FREQUENCY (Hz)
1
1
INPUT VOLTAGE NOISE (nV/√Hz)
INPUT CURRENT NOISE (pA/√Hz)
100
1000
10 100 1k 10k
100k
1468 G05
10
0.01
1
i
n
e
n
10
0.1
V
S
= ±15V
T
A
= 25°C
A
V
= 101
R
S
= 100k FOR i
n
Warm-Up Drift vs Time
TIME AFTER POWER UP (s)
0 20 40 60 80 100 120 140
–40
OFFSET VOLTAGE DRIFT (µV)
–35
–25
–20
–15
5
1468 G07
–30
–10
–5
0
S0-8 ±15V
N8 ±5V
S0-8 ±5V
N8 ±15V
LOAD RESISTANCE (Ω)
10
110
OPEN-LOOP GAIN (dB)
130
135
140
100 1k 10k
1468 G08
125
120
115
T
A
= 25°C
V
S
= ±15V
V
S
= ±5V
Open-Loop Gain
vs Resistive Load
Open-Loop Gain
vs Temperature
TEMPERATURE (°C)
–50
130
140
160
25 75
1468 G09
120
110
–25 0
50 100 125
100
90
150
OPEN-LOOP GAIN (dB)
R
L
= 2k
V
S
= ±15V
V
S
= ±5V