OPA2111 Datasheet, PDF (5/13 Pages) Burr-Brown (TI) – Dual Low Noise Precision Difet OPERATIONAL AMPLIFIER

TYPICAL PERFORMANCE CURVES (CONT)
T_A = +25°C, and V_CC = ±15VDC unless otherwise noted.
TOTAL⁽¹⁾ INPUT VOLTAGE NOISE SPECTRAL
DENSITY vs SOURCE RESISTANCE
1k
R_S = 10MΩ
R_S = 1MΩ
100
R_S = 100kΩ
BM
10
NOTE: (1) Includes contribution
from source resistance.
R_S = 100Ω
1
0.1
1
10
100
1k
10k 100k
Frequency (Hz)
INPUT OFFSET VOLTAGE WARM-UP DRIFT
40
20
0
–20
–40
0
1
2
3
4
5
6
Time From Power Turn-On (Minutes)
INPUT VOLTAGE NOISE SPECTRAL DENSITY
1k
100
AM, SM
BM
10
1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
TOTAL⁽¹⁾ INPUT VOLTAGE NOISE (PEAK-TO-PEAK)
vs SOURCE RESISTANCE
1k
NOTE: (1) Includes contribution
from source resistance.
100
10
BM
f_B = 0.1Hz to 10Hz
1
10 ⁴
10 ⁵
10 ⁶
10 ⁷
10 ⁸
10 ⁹
10 ¹⁰
Source Resistance (Ω)
BIAS AND OFFSET CURRENT
vs TEMPERATURE
1k
1k
100
100
10
10
1
1
0.1
0.1
0.01
–50 –25
0
25
50
75
Ambient Temperature (°C)
0.01
100 125
140
120
100
80
60
40
20
0
1
POWER SUPPLY REJECTION
vs FREQUENCY
10 100 1k 10k 100k 1M 10M
Frequency (Hz)
®
5
OPA2111