Datasheet

50mV/div
Time(250 s/div)m
CMPSEL=0(CompOff),
2.5VV ,R
CLAMP L
=10k ,W
G=32x1x2,300HzTriangleWave
V
S
V 0.1-
S
V 0.2-
S
V 0.3-
S
V 0.4-
S
GND+0.4
GND+0.3
GND+0.2
GND+0.1
GND
0 3 6 9 12 15
|OutputCurrent|(mA)
OutputVoltage(V)
V =2.7V
S
V =5.5V
S
V =3V
S
V =5V
S
Temperature( C)°
-50 15010075 1250-25 5025
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
I (mA)
Q
Frequency(Hz)
0.01 10M1M100k10k1k1001010.1
120
100
80
60
40
20
0
-20
OutputAmplifierOpen-LoopGain(dB)
C =10nF
L
R
L L
=10kW,C =10nF
R
L L
=1kW,C =10nF
C
L
£ 100pF
Frequency(Hz)
0.01 10M1M100k10k1k1001010.1
120
100
80
60
40
20
0
-20
OutputAmplifierOpen-LoopGain(dB)
C =10nF
L
R =10k ,CW
L L
=10nF
R =1k ,CW
L L
=10nF
C 100pF
L
£
Frequency(Hz)
0.01 10M1M100k10k1k1001010.1
180
160
140
120
100
80
60
40
20
0
-20
OutputAmplifierOpen-LoopPhase( )°
C =10nF
L
R =10k ,CW
L L
=10nF
R =1k ,CW
L L
=10nF
C 100pF£
L
PGA308
SBOS440B –JULY 2008–REVISED DECEMBER 2010 www.ti.com
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, V
S
= V
REF
= D
OUT
/V
CLAMP
= +5V, R
L
= 10kΩ and C
L
= 100pF connected to GND, unless otherwise noted.
Gain format is presented: G = FE-PGA × Fine Gain × Output Gain.
V
CLAMP
RESPONSE OUTPUT VOLTAGE vs
(C
L
= 10nF, CMP SEL = 0) OUTPUT CURRENT
Figure 19. Figure 20.
QUIESCENT CURRENT vs OUTPUT AMPLIFIER OPEN-LOOP GAIN vs
TEMPERATURE FREQUENCY (CMP SEL = 1)
Figure 21. Figure 22.
OUTPUT AMPLIFIER OPEN-LOOP GAIN vs OUTPUT AMPLIFIER OPEN-LOOP PHASE vs
FREQUENCY (CMP SEL = 0) FREQUENCY (CMP SEL = 1)
Figure 23. Figure 24.
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