Datasheet

LT2178/LT2179
6
21789fc
TYPICAL PERFORMANCE CHARACTERISTICS
OFFSET VOLTAGE (µV)
–150
0
NUMBER OF OP AMPS
200
400
600
800
–100 –50 0 50
21789 G01
100 150
V
S
= 5V, 0V
T
A
= 25°C
2500 OP AMPS
TESTED
POSITIVE SUPPLY VOLTAGE (V)
0
OFFSET VOLTAGE SHIFT (µV)
100
0
–100
–200
–300
–400
–500
21789 G02
1
23
V
–
= 0V
NONFUCTIONAL
–40°C
25°C
85°C
TEMPERATURE (°C)
–50
25
50
75
25 75
21789 G03
–2.5
–3.0
–25 0
50 100
–3.5
–4.0
INPUT OFFSET
CURRENT (pA)
INPUT BIAS
CURRENT (nA)
100
I
OS
I
B
V
S
= 5V, 0V
TEMPERATURE (°C)
SATURATION VOLTAGE (mV)
1000
100
10
1
0.1
–50 0 25 50 75 100
21789 G04
–25
I
SINK
= 1mA
I
SINK
= 100µA
I
SINK
= 1µA
NO LOAD
10k TO GROUND
2k TO GROUND
V
S
= 5V, 0V
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
0
SHORT CIRCUIT CURRENT (mA)
SINKING SOURCING
20
10
0
–10
–20
–30
2
21789 G05
1
V
S
= p15V
V
S
= p15V
V
S
= p2.5V
V
S
= p2.5V
V
S
= 5V, 0V
TIME (SECONDS)
0
NOISE VOLTAGE (0.4µV/DIV)
2
468
10 12
CHANNEL A
CHANNEL B
T
A
= 25°C, V
S
= p2.5V
21789 G06
TIME (SECONDS)
0
NOISE VOLTAGE (0.4µV/DIV)
20
40 60 80
21789 G07
100 120
CHANNEL A
CHANNEL B
T
A
= 25°C, V
S
= p2.5V
FREQUENCY (Hz)
0.1
10
VOLTAGE NOISE DENSITY (nVHz)
CURRENT NOISE DENSITY (fAHz)
100
300
30
1000
1 100010010
21789 G08
T
A
= 25°C
V
S
= p2.5V
CURRENT
NOISE
VOLTAGE NOISE
1/f CORNER
0.5Hz
FREQUENCY (Hz)
0.001
VOLTAGE GAIN (dB)
100k
217879 G09
0.1
10
1k
0.01 1M
1
100
10k
140
120
100
80
60
40
20
0
–20
V
S
= p15V
V
S
= 5V, 0V
T
A
= 25°C
Output Saturation vs Temperature
vs Sink Current Short-Circuit Current 0.1Hz to 10Hz Noise
0.01Hz to 10Hz Noise Noise Spectrum Voltage Gain vs Frequency
Distribution of Input
Offset Voltage Minimum Supply Voltage
Input Bias and Offset Currents
vs Temperature