LT1920_15 Datasheet, PDF (4/12 Pages) Linear Technology – Single Resistor Gain Programmable, Precision Instrumentation Amplifier

LT1920
TYPICAL PERFOR A CE CHARACTERISTICS
Gain Nonlinearity, G = 1
Gain Nonlinearity, G = 10
Gain Nonlinearity, G = 100
G = 1 OUTPUT VOLTAGE (2V/DIV)
R_L = 2k
V_OUT = ±10V
1167 G01
Gain Nonlinearity, G = 1000
G = 1000 OUTPUT VOLTAGE (2V/DIV)
R_L = 2k
V_OUT = ±10V
1167 G04
G = 10 OUTPUT VOLTAGE (2V/DIV)
R_L = 2k
V_OUT = ± 10V
1167 G02
Gain Error vs Temperature
0.20
0.15
0.10
0.05
G=1
0
– 0.05
– 0.10
– 0.15
V_S = ±15V
V_OUT = ±10V
G = 10*
R_L = 2k
*DOES NOT INCLUDE
G = 100*
TEMPERATURE EFFECTS
G = 1000*
OF R _G
– 0.20
– 50 – 25 0 25 50 75 100
TEMPERATURE (°C)
1920 G06
G = 100 OUTPUT VOLTAGE (2V/DIV)
R_L = 2k
VOUT = ±10V
1167 G03
Warm-Up Drift
14
V_S = ± 15V
12
T_A = 25°C
G=1
S8
10
8
N8
6
4
2
0
0
1
2
3
4
5
TIME AFTER POWER ON (MINUTES)
1920 G09
Input Bias Current
vs Common Mode Input Voltage
500
400
300
200
100
0
–100
– 200
– 300
85°C
0°C
– 40°C
70°C
25°C
– 400
– 500
–15 –12 – 9 – 6 – 3 0 3 6 9 12 15
COMMON MODE INPUT VOLTAGE (V)
1920 G13
Common Mode Rejection Ratio
vs Frequency
160
G = 1000
140 _{G = 100}
120 ^{G = 10}
V_S = ±15V
T_A = 25°C
1k SOURCE
IMBALANCE
100 G = 1
80
60
40
20
0
0.1 1 10 100 1k 10k 100k
FREQUENCY (Hz)
1920 G14
Negative Power Supply Rejection
Ratio vs Frequency
160
140 G = 100
V ⁺ = 15V
T_A = 25°C
120 ^{G = 10}
100 G = 1
G = 1000
80
60
40
20
0
0.1 1 10 100 1k 10k 100k
FREQUENCY (Hz)
1920 G15
4