Datasheet

5
LT1635
SUPPLY VOLTAGE (V)
2
SUPPLY CURRENT (µA)
140
180
10
1635 G01
100
60
4
6
8
3
5
7
9
220
120
160
80
200
T
A
= –55°C
T
A
= 25°C
T
A
= 125°C
COMMON MODE VOLTAGE (V)
–1
INPUT BIAS CURRENT (nA)
–2
–1
0
3
1635 G03
–3
–4
–5
0
1
2
4
T
A
= 125°C
V
S
= 5V, 0V
T
A
= 25°C
T
A
= –55°C
Input Bias Current
vs Common Mode Voltage
TEMPERATURE (°C)
–50
–3
OFFSET CURRENT (pA)BIAS CURRENT (nA)
–1
100
I
OS
I
B
0
50
75
1635 G02
–2
50
0
–25
25
100
125
V
S
= 5V, 0V
Input Bias and Offset Currents
vs Temperature
0.1Hz to 10Hz Noise Voltage
Noise Voltage Density
vs Frequency
TIME (SEC)
0
NOISE VOLTAGE (1µV/DIV)
89
1635 G04
2
4
6
7
1
3
5
10
V
S
= ±5V
T
A
= 25°C
FREQUENCY (Hz)
1
30
60
70
80
10 100 1000
1635 G05
50
40
INPUT NOISE VOLTAGE DENSITY (nV/√Hz)
V
S
= ±2.5V
T
A
= 25°C
Input Noise Current vs Frequency
FREQUENCY (Hz)
1
0
0.3
0.4
0.5
10 100 1000
1635 G06
0.2
0.1
INPUT NOISE CURRENT DENSITY (pA/√Hz)
V
S
= ±2.5V
T
A
= 25°C
Typical Distribution of Offset
Voltage Drift with Temperature
TCV
OS
(µV/°C)
–6
0
PERCENT OF UNITS
5
10
15
20
25
–4
–2 0 2
1635 G07
46
V
S
= 5V, 0V
Minimum Supply Voltage
TOTAL SUPPLY VOLTAGE (V)
0
–1000
CHANGE IN INPUT OFFSET VOLTAGE (V)
–800
–600
–400
–200
12
1635 G08
0
200
T
A
= 125°C
T
A
= 25°C
T
A
= –55°C
Turn-On Drift
of Three Typical Units
TIME AFTER POWER ON (MINUTES)
0
0
CHANGE IN OFFSET VOLTAGE (µV)
20
60
80
100
140
1
5
7
1635 G09
40
120
4
9
10
2
3
68
V
S
= ±5V
T
A
= 25°C
Op Amp
Supply Current vs Supply Voltage
TYPICAL PERFOR A CE CHARACTERISTICS
UW