THS4531_14 Datasheet, PDF (24/56 Pages) Texas Instruments – Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

THS4531
SLOS358B – SEPTEMBER 2011 – REVISED MARCH 2012
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TYPICAL CHARACTERISTICS: V_S = 5V (continued)
Test conditions unless otherwise noted: V_S+ = 5 V, V_S– = 0V, V_OCM = open, V_OUT = 2Vpp, R_F = 2kΩ, R_L = 2kΩ Differential, G =
1V/V, Single-Ended Input, Differential Output, Input and Output Referenced to mid-supply, T_A = 25°Cunless otherwise noted.
MAIN AMPLIFIER DIFFERENTIAL
OPEN-LOOP GAIN and PHASE
vs
FREQUENCY
OUTPUT BALANCE ERROR
vs
FREQUENCY
120
0
110
Magnitude
100
Phase
90
−45
80
70
60
−90
50
40
30
−135
20
10
0
−180
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
G048
Figure 57.
−30
V_S = 5 V
G = 1 V/V
−40 RF = 2 kΩ
R_L = 2 kΩ
−50
−60
−70
−80
100k
1M
Frequency (Hz)
Figure 58.
10M
30M
G049
V_OCM SMALL-SIGNAL FREQUENCY RESPONSE
3
0
−3
−6
−9
−12 _{VS = 5 V}
G = 1 V/V
−15 R_F = 2 kΩ
V_OUT = 100 mV_pp
−18
100k
1M
Frequency (Hz)
10M
Figure 59.
50M
G050
V_OCM LARGE- and SMALL SIGNAL PULSE RESPONSE
3.2
3
2.8
2.6
2.4
2.2
0.2-V Step
1-V Step
2
1.8
0
100 200 300 400 500 600 700 800 900 1000
Time (ns)
G051
Figure 60.
24
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