OPA111 Datasheet, PDF (5/14 Pages) Burr-Brown (TI) – Low Noise Precision Difet OPERATIONAL AMPLIFIER

TYPICAL PERFORMANCE CURVES (CONT)
T_A = +25°C, V_CC = ±15VDC unless otherwise noted.
TOTAL* INPUT VOLTAGE NOISE SPECTRAL
DENSITY vs SOURCE RESISTANCE
1k
R_S = 10MΩ
R_S = 1MΩ
100
R_S = 100kΩ
10
BM
*Includes contribution
from source resistance.
R_S = 100Ω
1
0.1
1
10
100
1k
10k 100k
Frequency (Hz)
TOTAL* INPUT VOLTAGE NOISE (PEAK-TO-PEAK)
vs SOURCE RESISTANCE
1k
*Includes contribution
from source resistance.
100
BM
10
f_B = 0.1Hz to 10Hz
1
10⁴
10⁵
10⁶
10⁷
10⁸
10⁹
10¹⁰
Source Resistance (Ω)
VOLTAGE AND CURRENT NOISE SPECTRAL
DENSITY vs TEMPERATURE
12
100
f_O = 1kHz
10
10
8
1
6
0.1
4
–75 –50 –25
0 25 50
Temperature (°C)
0.01
75 100 125
BIAS AND OFFSET CURRENT
vs TEMPERATURE
1k
1k
100
100
BM
10
10
1
1
0.1
0.1
0.01
–50 –25
0
25
50
75
Ambient Temperature (°C)
0.01
100 125
BIAS AND OFFSET CURRENT
vs INPUT COMMON-MODE VOLTAGE
10
10
1
1
Bias Current
0.1
Offset Current
0.1
0.01
–15
–10
–5
0
5
10
Common-Mode Voltage (V)
0.01
15
140
120
100
80
60
40
20
0
1
POWER SUPPLY REJECTION
vs FREQUENCY
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
®
5
OPA111