Datasheet

7
LT1638/LT1639
16389fc
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Minimum Supply Voltage
Input Bias Current vs
Common Mode Voltage
Output Saturation Voltage vs
Load Current (Output High)
0.1Hz to 10Hz Noise Voltage
Noise Voltage Density vs
Frequency
SUPPLY VOLTAGE (V)
0
SUPPLY CURRENT PER AMPLIFIER (µA)
10
20
25 45
1638/39 G01
300
280
260
240
220
200
180
160
140
120
100
515
30
35
40
T
A
= 125°C
T
A
= 25°C
T
A
= –55°C
Supply Current vs Supply Voltage
TOTAL SUPPLY VOLTAGE (V)
0
CHANGE IN INPUT OFFSET VOLTAGE (µV)
200
400
4
1638/39 G02
0
–200
100
300
–100
–300
–400
1
2
3
5
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
COMMON MODE VOLTAGE (V)
4.0
INPUT BIAS CURRENT (nA)
10000
8000
6000
60
40
20
0
–20
–40
5.6
1638/39 G03
4.4
4.8
5.2
44
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
V
S
= 5V, 0V
FREQUENCY (Hz)
1
INPUT NOISE VOLTAGE DENSITY (nV/√Hz)
10 100 1k
1638/39 G09
70
60
50
40
30
20
10
0
TIME (SEC)
013579
NOISE VOLTAGE (400nV/DIV)
2468
1638/39 G07
10
V
S
= ±2.5
FREQUENCY (Hz)
1
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
10 100 1k
1638/39 G08
INPUT NOISE CURRENT DENSITY (pA/√Hz)
SOURCING LOAD CURRENT (mA)
0.001
0.01
OUTPUT SATURATION VOLTAGE (V)
0.1
1
0.01 0.1 1 10
1638/39 G04
V
S
= ±2.5V
V
OD
= 30mV
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
SINKING LOAD CURRENT (mA)
0.001
0.001
OUTPUT SATURATION VOLTAGE (V)
0.1
0.01
1
0.01 0.1 1 10
1638/39 G05
V
S
= ±2.5V
V
OD
= 30mV
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
INPUT OVERDRIVE (mV)
10
OUTPUT SATURATION VOLTAGE (mV)
30
100
1638/39 G06
1
10
20 100
90
807060
50
40
0
V
S
= ±2.5V
NO LOAD
OUTPUT HIGH
OUTPUT LOW
Output Saturation Voltage vs
Input Overdrive
Output Saturation Voltage vs
Load Current (Output Low)
Input Noise Current Density
vs Frequency