THS4531A Datasheet, PDF (17/51 Pages) Texas Instruments – Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

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THS4531A
SLOS823A – DECEMBER 2012 – REVISED JANUARY 2013
TYPICAL CHARACTERISTICS: V_S = 5V
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.
SMALL-SIGNAL FREQUENCY RESPONSE
21
18
G = 1 V/V
15
G = 2 V/V
12
G = 5 V/V
9
G = 10 V/V
6
3
0
−3
−6 _{VS = 5 V}
−9 _{G = 1 V/V}
−12 _{RF = 2 kΩ}
−15 R_L = 2 kΩ
−18 VOUT = 100 mVpp
−21
100k
1M
10M
100M
Frequency (Hz)
G027
Figure 35.
LARGE-SIGNAL FREQUENCY RESPONSE
21
18
G = 1 V/V
15
G = 2 V/V
12
G = 5 V/V
9
G = 10 V/V
6
3
0
−3
−6 _{VS = 5 V}
−9 _{G = 1 V/V}
−12 _{RF = 2 kΩ}
−15 R_L = 2 kΩ
−18 VOUT = 2 Vpp
−21
100k
1M
10M
100M
Frequency (Hz)
G028
Figure 36.
LARGE- and SMALL-SIGNAL PULSE RESPONSE
1.5
V_S = 5 V
0.5-V Step
1
G = 1 V/V
R_F = 2 kΩ
2-V Step
R_L = 2 kΩ
0.5
SINGLE-ENDED SLEW RATE
vs
600
V_S = 5 V
500
G = 2 V/V
R_F = 2 kΩ
R_L = 200 Ω
400
V_OUT STEP
0
300
−0.5
200
−1
−1.5
0
20
40
60
Time (ns)
Figure 37.
80
100
G029
100
0
0
Rising
Falling
1
2
3
4
5
Differential V_OUT (V)
G030
Figure 38.
DIFFERENTIAL SLEW RATE
vs
250
V_S = 5 V
G = 2 V/V
200 RF = 2 kΩ
R_L = 200 Ω
V_OUT STEP
150
100
50
Rising
Falling
0
0
1
2
3
4
5
6
7
8
Differential V_OUT (V)
G054
Figure 39.
OVERDRIVE RECOVERY
3
6
V_IN
2
V_{OUT 4}
1
2
0
0
−1
−2
V_S = 5 V
−2
G = 2 V/V
R_F = 2 kΩ
−4
R_L = 200 Ω
−3
−6
0 100 200 300 400 500 600 700 800 900 1000
Time (ns)
G031
Figure 40.
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