Datasheet

8
LT1078/LT1079
10789fe
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
LOAD RESISTANCE TO GROUND (Ω)
100
100k
VOLTAGE GAIN (V/V)
1M
10M
10k 100k1k 1M
LT1078/79 • TPC18
25°C
–55°C
125°C
25°C
–55°C
125°C
V
S
= ±15V
V
S
= 5V, 0V
Minimum Supply Voltage
POSITIVE SUPPLY VOLTAGE (V)
0
INPUT OFFSET VOLTAGE (µV)
100
0
–100
–200
–300
–400
–500
LT1078/79 • TPC16
1
23
V
–
= 0V
–0.1V ≤ V
CM
≤ 0.4V
125°C
–55°C
0°C
25°C
70°C
NONFUNCTIONAL
Voltage Gain vs Frequency
FREQUENCY (Hz)
0.01
VOLTAGE GAIN (dB)
1M
LT1078/79 • TPC10
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
80
70
60
50
40
0
50
75
LT1078/79 • TPC13
–25
25
100
125
SLEW = ±15V
GBW = ±15V
GBW = 5V, 0V
SLEW = 5V, 0V
φ
M
= ±15V
φ
M
= 5V, 0V
f
O
= 20kHz
Large-Signal Transient Response
V
S
= 5V, 0V
1V/DIV
A
V
= 1, NO LOAD 50µs/DIV
INPUT PULSE 0V TO 3.8V
LT1078/79 • TPC27
0V
Warm-Up Drift
TIME AFTER POWER-ON (MINUTES)
0
CHANGE IN OFFSET VOLTAGE (µV)
LT1078/79 • TPC17
12
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
3
T
A
= 25°C
V
S
= ±15V
WARM UP DRIFT
AT V
S
= 5V, 0V IS
IMMEASURABLY LOW
LT1079
LT1078
Large-Signal Transient Response
V
S
= ±15V
5V/DIV
A
V
= 1 100µs/DIV
NO LOAD
LT1078/79 • TPC28
0V
Voltage Gain vs Load Resistance
Capacitive Load Handling
CAPACITIVE LOAD (pF)
10
OVERSHOOT (%)
120
100
80
60
40
20
0
10000
LT1078/79 • TPC12
1000100
T
A
= 25°C
V
S
= 5V, 0V
A
V
= 1
A
V
= 10
A
V
= 5
Gain, Phase vs Frequency
FREQUENCY (kHz)
30
30
20
10
0
–10
100
300
LTC1078/79 TPC11
VOLTAGE GAIN (dB)
100
120
140
160
180
200
PHASE SHIFT (DEG)
10
1000
PHASE
MARGIN
66°
PHASE
MARGIN
54°
5V, 0V
±15V
±15V
5V, 0V
T
A
= 25°C
C
L
= 20pF
GAIN