Datasheet
8
LT1677
1677fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Input Bias Current
vs Temperature
TEMPERATURE (°C)
–50
0
INPUT BIAS CURRENT (nA)
1
3
4
5
10
7
0
50
75
1677 G05
2
8
9
6
–25
25
100
125
V
S
= ±15V
V
CM
= 0V
Current Noise vs Frequency
Voltage Noise vs Temperature
Input Bias Current Over the
Common Mode Range
Input Bias Current
vs Temperature
TEMPERATURE (°C)
–50
100
INPUT BIAS CURRENT (nA)
300
600
0
50
75
1677 G06
200
500
400
–25
25
100
125
V
S
= ±15V
V
CM
= 14.7V
CURRENT INTO DUT
V
CM
= –14V
CURRENT OUT OF DUT
FREQUENCY (Hz)
10
0.1
RMS CURRENT NOISE DENSITY (pA/√Hz)
1
10
100 1000 10000
1677 G07
1/f CORNER 90Hz
1/f CORNER 180Hz
V
CM
< –13.5V
V
CM
> 14.5V
V
S
= ±15V
T
A
= 25°C
V
CM
–13.5V TO 14.5V
1/f CORNER 60Hz
TEMPERATURE (°C)
–50
2
RMS VOLTAGE NOISE DENSITY (nV/√Hz)
4
7
0
50
75
1677 G08
3
1kHz
10Hz
6
5
–25
25
100
125
V
S
= ±15V
V
CM
= 0V
COMMON MODE INPUT VOLTAGE (V)
–16
INPUT BIAS CURRENT (nA)
0
400
16
1677 G09
–400
–800
–8
0
8
–12
–4
4
12
800
–200
200
–600
600
V
CM
= –15.3V
V
CM
= –13.6V
V
CM
= 14.3V
V
CM
= 15.15V
INPUT BIAS CURRENT
V
S
= ±15V
T
A
= 25°C
Offset Voltage Shift
vs Common Mode
Distribution of Input Offset
Voltage Drift (N8)
V
CM
– V
–
(V) V
CM
– V
+
(V)
–1.0
V
–
V
+
OFFSET VOLTAGE (mV)
OFFSET VOLTAGE (µV)
0.5
1.5
2.5
–0.8
1677 G10
–0.5
–1.5
0
1.0
2.0
–1.0
–2.0
–2.5
50
150
250
–50
–150
0
100
200
–100
–200
–250
1.0
2.0
–0.4
0.4
V
OS
IS REFERRED
TO V
CM
= 0V
V
S
= ±1.5V TO ±15V
T
A
= 25°C
5 TYPICAL PARTS
INPUT OFFSET VOLTAGE DRIFT (µV/°C)
–1.0
PERCENT OF UNITS (%)
30
40
50
1677 G13
20
10
25
35
45
15
5
0
–0.6 –0.2 0.2 0.6 1.0 1.4
V
S
= ±15V
T
A
= –40°C TO 85°C
167 PARTS (4 LOTS)
Warm-Up Drift
TIME (MINUTES)
0
CHANGE IN OFFSET VOLTAGE (µV)
6
8
10
4
1677 G02
4
2
0
1
2
3
5
V
S
= ±15V
T
A
= 25°C
SO PACKAGE
N PACKAGE
INPUT OFFSET VOLTAGE DRIFT (µV/°C)
–0.8
0
PERCENT OF UNITS (%)
5
10
15
20
30
–0.4
0 0.4 0.8 1.2
1677 G37
1.6 2.0
25
V
S
= ±15V
T
A
= –40°C TO 85°C
201 PARTS (5 LOTS)
Distribution of Input Offset
Voltage Drift (SO-8)