Datasheet

LTC6240/LTC6241/LTC6242
15
624012fc
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Warm-Up Drift vs Time
TIME AFTER POWER UP (s)
010 3020540605015 3525 45 55
CHANGE IN OFFSET VOLTAGE (µV)
25
15
20
–5
0
10
5
6241 G27
T
A
= 25°C
V
S
=
±1.5V
V
S
=
±2.5V
V
S
=
±5V
0.01µF1µF0.1µF1000pF100pF
CAPACITIVE LOAD
1
OUTPUT SERIES RESISTANCE (Ω)
10
10pF
10µF
6241 G45
0.1
1000
100
V
S
=
±2.5V
<30% OVERSHOOT
FREQUENCY (Hz)
20
10
NOISE VOLTAGE (nV/√Hz)
30
40
50
60
1 100 1k 100k
6241 G28
0
10
10k
T
A
= 25°C
V
S
= ±2.5V
V
CM
= 0V
Noise Voltage vs Frequency
CAPACITIVE LOAD (pF)
10
OVERSHOOT (%)
60
50
40
30
20
10
0
100 1000
6241 G29
R
S
= 50
Ω
R
S
= 10
Ω
V
S
= ±2.5V
A
V
= –1
R
S
1k
1k
C
L
75pF
+
–
CAPACITIVE LOAD (pF)
10
OVERSHOOT (%)
60
50
40
30
20
10
0
100 1000
6241 G30
R
S
= 50
Ω
R
S
= 10
Ω
V
S
= ±2.5V
A
V
= –2
R
S
500
Ω
1k
C
L
75pF
+
–
Series Output Resistance and
Overshoot vs Capacitive Load
Series Output Resistance and
Overshoot vs Capacitive Load
0.1Hz to 10Hz Voltage Noise
TIME (1s/DIV)
VOLTAGE NOISE (200nV/DIV)
6241 G11
V
S
= 5V, 0V
FREQUENCY (Hz)
1
NOISE CURRENT (fA/√Hz)
10
100 10k 100
k
6241 G42
0.1
1k
1000
100
T
A
= 25
°C
V
S
=
±2.5V
V
CM
= 0V
Noise Current vs Frequency
Minimum Output Series
Resistance vs Capacitive Load
3.0
1.5
2.0
2.5
0
0.5
1.0
OUTPUT STEP (V)
–4 –2 3–3 10–1 2 4
SETTLING TIME (µs)
6241 G32
10mV
1mV
10mV
1mV
T
A
= 25°C
V
S
= ±5V
A
V
= –1
V
OUT
V
IN
1k
+
–
1k
1k
Settling Time vs Output Step
(Inverting)
OUTPUT STEP (V)
–4 –2 3–3 10–1 2 4
SETTLING TIME (µs)
3.5
1.5
2.0
2.5
3.0
0
0.5
1.0
6241 G31
10mV
1mV
10mV
1mV
T
A
= 25°C
V
S
= ±5V
A
V
= 1
V
OUT
V
IN
1k
+
–
Settling Time vs Output Step
(Non-Inverting)