9
LT1078/LT1079
10789fe
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
TEMPERATURE (
°C)
–50
COMMON
MODE
RANGE
(V)
–25
0
25
50
75
LT1078/79 TPC22
125
V+
V+ – 1
V+ – 2
V– + 1
V–
V– – 1
100
V+ = 2.5V TO 18V
V– = 0V TO –18V
Output Saturation vs Temperature
vs Sink Current
TEMPERATURE (
°C)
–50
SATURATION
VOLTAGE
(mV)
1000
100
10
1
–25
125
LT1078/79 TPC19
0
25
50
100
75
ISINK = 2mA
ISINK = 1mA
ISINK = 100μA
ISINK = 1μA
NO LOAD
RL = 5k TO GND
ISINK = 10μA
VS = 5V, 0V
Common Mode Range
vs Temperature
Closed Loop Output Impedance
FREQUENCY (Hz)
OUTPUT
IMPEDANCE
(
Ω
)
1k
100
10
1
0.1
LT1078/79 TPC24
10
100
1k
10k
100k
AV = 100
AV = 10
AV = 1
Output Voltage Swing
vs Load Current
SOURCING OR SINKING LOAD CURRENT (mA)
0.01
OUTPUT
VOLTAGE
SWING
(V)
V+
V+ – 1
V+ – 2
V– + 2
V– + 1
V–
10
LT1078/79 TPC20
0.1
1
125
°C
25
°C
–55
°C
125
°C
–55
°C
25
°C
Undistorted Output Swing
vs Frequency
FREQUENCY (kHz)
0.01
PEAK-TO-PEAK
OUTPUT
SWING,
V
S
=
±
15V
(V)
PEAK-TO-PEAK
OUTPUT
SWING,
V
S =
5V,
0V
(V)
30
20
10
0
5
4
3
2
1
0
100
LT1078/79 TPC23
110
VS = 5V, 0V
RL ≥ 100k
VS = ±15V
RL ≥ 100k
VS = ±15V
RL = 30k
VS = 5V, 0V
RL ≥ 1k
TA = 25°C
LOAD RL,
TO GND
Distribution of Input Offset Voltage
(LT1078 in 8-Pin SO Package)
Channel Separation vs Frequency
Power Supply Rejection Ratio
vs Frequency
Common Mode Rejection Ratio
vs Frequency
FREQUENCY (Hz)
10
COMMON
MODE
REJECTION
RATIO
(dB)
100
1k
10k
100k
LT1078/79 TPC25
1M
TA = 25°C
120
100
80
60
40
20
0
VS = ±15V
VS = 5V, 0V
FREQUENCY (Hz)
0.1
POWER
SUPPLY
REJECTION
RATIO
(dB)
120
100
80
60
40
20
0
100
10k
LT1078/79 TPC26
110
1k
100k
1M
TA = 25°C
VS = ±2.5V + 1VP-P SINE WAVE
POSITIVE
SUPPLY
NEGATIVE
SUPPLY
FREQUENCY (Hz)
1
1k
100k
LT1078/79 TPC27
10
100
10k
1M
CHANNEL
SEPARATION
(dB)
140
120
100
80
60
40
20
0
TA = 25°C
VS = ±2.5V
VIN = 3VP-P TO 2kHz
RL = 10k
INPUT OFFSET VOLTAGE (
μV)
–160
PERCENT
OF
UNITS
160
LT1078/79 TPC21
–80
0
80
16
14
12
10
8
6
4
2
0
–120
–40
40
120
TA = 25°C
VS = 5V, 0V