Datasheet

LT1999-10/LT1999-20/
LT1999-50
7
1999fb
Typical perForMance characTerisTics
Input Bias Current
vs Input Common Mode Input Bias Current vs Temperature
Input Impedance
vs Input Common Mode Voltage
V
CM
(V)
–5
I
B
(mA)
0.5
0
–1.0
–1.5
–0.5
–2.0
4525 65
1999 G07
75 8035155 55
V
+
= 5V
TEMPERATURE (°C)
–55
I
B
(µA)
146
144
140
134
136
138
142
132
70
20 120
1999 G08
14545–5–30 95
V
CM
= 80V
V
CM
= 5.5V
V
SHDN
= OPEN
V
INDIFF
= 0V
V
+
= 5V
V
CM
(V)
–5
IMPEDANCE (kΩ)
100000
10000
100
10
1000
1
4525 65
1999 G09
7535155 55
COMMON MODE INPUT
IMPEDANCE
DIFFERENTIAL INPUT IMPEDANCE
Supply Current
vs SHDN Pin Voltage
Shutdown Supply Current
vs Temperature
Shutdown Input Bias Current
vs Input Common Mode
Supply Current
vs Input Common Mode Supply Current vs Temperature Supply Current vs Supply Voltage
V
CM
(V)
–5
I
S
(mA)
7
6
4
2
5
3
1
0
4525 65
1999 G01
75 8035155 55
V
+
= 5V
TEMPERATURE (°C)
–55
I
S
(mA)
1.8
1.7
1.5
1.6
1.4
7020 120
1999 G02
14545–5–30 95
V
+
= 5.5V
V
+
= 4.5V
V
SHDN
= OPEN
V
INDIFF
= 0V
V
CM
= 12V
SUPPLY VOLTAGE (V)
0
I
S
(mA)
4.0
3.0
1.0
2.0
3.5
1.5
2.5
0
0.5
2 4
1999 G03
51 3
V
CM
= 12V
150°C
130°C
90°C
25°C
–45°C
–55°C
V
SHDN
(V)
0
I
S
(mA)
10
0.1
1
0.001
0.01
2 4
1999 G04
51 3
T
A
= 25°C
T
A
= 150°C
T
A
= –55°C
V
+
= 5V
V
CM
= 12V
TEMPERATURE (°C)
–55
I
S
(µA)
10
8
4
2
6
0
7020 120
1999 G05
14545–5–30 95
V
+
= 5.5V
V
+
= 4.5V
V
SHDN
= 0V
V
INDIFF
= 0V
V
CM
= 12V
V
CM
(V)
0
I
B
(nA)
1000
10
100
1
40 80
1999 G06
10020 60
V
+
= 5V
V
SHDN
= 0V
V
SENSE
= 0V
T
A
= 70°C
T
A
= 90°C
T
A
= 150°C
T
A
=110°C
T
A
=130°C