7
LT2078/LT2079
20789fa
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Voltage Gain vs Load Resistance
LOAD RESISTANCE TO GROUND (Ω)
100
100k
VOLTAGE GAIN (V/V)
1M
10M
10k 100k1k 1M
LT2078/79 • TPC14
25°C
–55°C
125°C
25°C
–55°C
125°C
V
S
= ±15V
V
S
= 5V, 0V
Capacitive Load Handling
Gain, Phase vs Frequency
FREQUENCY (kHz)
30
30
20
10
0
–10
100
300
LTC2078/79 TPC12
VOLTAGE GAIN (dB)
100
120
140
160
180
200
PHASE SHIFT (DEG)
10
1000
PHASE
MARGIN
58°
PHASE
MARGIN
46°
5V, 0V
±15V
±15V
5V, 0V
Voltage Gain vs Frequency
FREQUENCY (Hz)
0.01
VOLTAGE GAIN (dB)
1M
LT2078/79 • TPC13
1
100
10k
140
120
100
80
60
40
20
0
–20
0.1
10
1k
100k
V
S
= ±15V
V
S
= 5V, 0V
T
A
= 25°C
Slew Rate, Gain Bandwidth Product
and Phase Margin vs Temperature
TEMPERATURE (°C)
–50
GAIN BANDWIDTH
PRODUCT (kHz) SLEW RATE (V/µs)
PHASE MARGIN (DEG)
0.12
0.10
0.08
0.06
0.04
240
220
200
180
160
75
65
55
45
0
50
75
LT2078/79 • TPC15
–25
25
100
125
SLEW = ±15V
GBW = ±15V
GBW = 5V, 0V
SLEW = 5V, 0V
φ
M
= ±15V
φ
M
= 5V, 0V
f
O
= 20kHz
Channel Separation vs Frequency
FREQUENCY (Hz)
1
CHANNEL SEPARATION (dB)
120
100
80
60
40
20
0
10
100 1k 10k
LT2078/79 • TPC16
100k 1M
T
A
= 25°C
V
S
= ±2.5V
V
IN
= 3V
P-P
R
L
= 10k
CAPACITIVE LOAD (pF)
10
OVERSHOOT (%)
120
100
80
60
40
20
0
10000
LT2078/79 • TPC17
1000100
T
A
= 25°C
V
S
= 5V, 0V
A
V
= 1
A
V
= 10
A
V
= 5
Power Supply Rejection Ratio
vs Frequency
Undistorted Output Swing
vs Frequency
Common Mode Rejection Ratio
vs Frequency
FREQUENCY (Hz)
10
COMMON MODE REJECTION RATIO (dB)
100 1k 10k 100k
LT2078/79 • TPC19
1M
T
A
= 25°C
120
100
80
60
40
20
0
V
S
= ±15V
V
S
= 5V, 0V
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
LT2078/79 • TPC18
110
V
S
= 5V, 0V
R
L
≥ 100k
V
S
= ±15V
R
L
≥ 100k
V
S
= ±15V
R
L
= 30k
V
S
= 5V, 0V
R
L
≥ 1k
T
A
= 25°C
LOAD R
L
,
TO GND
FREQUENCY (Hz)
0.1
POWER SUPPLY REJECTION RATIO (dB)
120
100
80
60
40
20
0
100 10k
LT2078/79 • TPC20
110
1k 100k 1M
T
A
= 25°C
V
S
= ±2.5V + 1V
P-P
SINE WAVE
POSITIVE
SUPPLY
NEGATIVE
SUPPLY
