LT1112_15 Datasheet, PDF (8/16 Pages) Linear Technology – Dual/Quad Low Power Precision, Picoamp Input Op Amps

LT1112/LT1114
TYPICAL PERFOR A CE CHARACTERISTICS
Minimum Supply Voltage vs Temp
Voltage Gain at Minimum Supply
Voltage
±1.2
±1.1
±1.0
±0.9
100
80
60
40
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1112/14 • TPC16
Voltage Gain
–15
V_S = ±15V
T_A = 25°C
–10
–5
R_L = 10k
0
R_L = 2k
5
10
15
–15
–10 –5 0
5
10 15
OUTPUT VOLTAGE (V)
LT1112/14 • TPC19
Common Mode Rejection
vs Frequency
140
V_S = ±15V
120
T_A = 25°C
100
80
60
40
20
0
1 10 100 1k 10k 100k 1M
FREQUENCY (Hz)
LT1112/14 • TPC22
8
Common Mode Range and
Voltage Swing with Respect to
Supply Voltages
V⁺
V⁺ – 0.2
V⁺ – 0.4
V_S = ±1V TO ±20V
I_L < 100µA
V⁺ – 0.6
SWING
V⁺ – 0.8
V⁺ – 1.0
CM RANGE
V^– + 0.8
V^– + 0.6
V^– + 0.4
SWING
CM RANGE
V^– + 0.2
V^–
–75
–25
25
75
125
TEMPERATURE (°C)
LT1112/14 • TPC17
Output Voltage Swing
vs Load Current
V⁺
V⁺ – 1
V⁺ – 2
V⁺ – 3
V_S = ±1V TO ± 20V
T_A = 25°C
MAX I_L AT ±1V = 1.3mA
AT ±1.5V = 3mA
V^– + 3
V^– + 2
V^– + 1
V^–
–9
–6 –3 0
3
6
9
SINK
SOURCE
OUTPUT CURRENT (mA)
LT1112/14 • TPC18
Voltage Gain vs Frequency
140
V_S = ±15V
120
T_A = 25°C
100
80
60
40
20
0
–20
0.01 0.1 1 10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
LT1112/14 • TPC20
Gain, Phase Shift vs Frequency
40
100
V_S = ±15V
T_A = 25°C
30
120
PHASE
20
140
GAIN
10
160
0
180
PHASE MARGIN = 70°C
–10
0.01
200
0.1
1
10
FREQUENCY (MHz)
LT1112/14 • TPC21
Power Supply Rejection
vs Frequency
140
V_S = ±15V
120
T_A = 25°C
NEGATIVE
SUPPLY
100
80
POSITIVE
SUPPLY
60
40
20
0.1 1
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
LT1112/14 • TPC23
Channel Separation vs Frequency
160
V_S = ±15V
T_A = 25°C
140
120
100
AMP 1 IN UNITY-GAIN
20V_P-P, R_L = 2k
80 ^{AMP 2 IN GAIN = 1000}
R_S = 100Ω, R_F = 100k
1 10 100 1k 10k 100k 1M
FREQUENCY (Hz)
LT1112/14 • TPC24
111214fb