LOG114 Datasheet, PDF (10/30 Pages) Burr-Brown (TI) – Single-Supply, High-Speed, Precision LOGARITHMIC AMPLIFIER

LOG114
SBOS301A − MAY 2004 − REVISED MARCH 2007
TYPICAL CHARACTERISTICS: V_S = +5V (continued)
All specifications at T_A = +25°C, R_VLOGOUT = 10kΩ, V_CM = GND, unless otherwise noted.
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A₄ and A₅ GAIN AND PHASE vs FREQUENCY
140
180
120
100
135
80 _Gain
60
Phase
90
40
20
45
0
−20
1
0
10 100 1k 10k 100k 1M 10M 18M
Frequency (Hz)
A₄ and A₅ NONINVERTING CLOSED−LOOP RESPONSE
3
0
G=1
−3
G = 10
−6
−9
−12
−15
1k
10k
100k
1M
10M
100M
Frequency (Hz)
A₄ and A₅ INVERTING CLOSED−LOOP RESPONSE
30
20
10
0
−10
−20
G = −10
−30
G = −1
−40
−50
−60
−70
−80
1k
10k
100k
1M
10M 60M
Frequency (Hz)
A₄ and A₅ CAPACITIVE LOAD RESPONSE
10
G = +1
0
−10
C = 100pF
−20
C < 10pF
−30
−40
−50
1k
10k
100k
1M
Frequency (Hz)
10M 50M
10