THS4271 Datasheet, PDF (11/38 Pages) Texas Instruments – LOW NOISE, HIGH SLEW RATE, UNITY GAIN STABLE VOLTAGE FREEBACK AMPLIFIER

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THS4271
THS4275
SLOS397E − JULY 2002 − REVISED JANUARY 2004
0.030
0.025
0.020
DIFFERENTIAL GAIN
vs
NUMBER OF LOADS
Gain = 2
Rf = 1.3 kΩ
VS = ±5 V
40 IRE − NTSC and Pal
Worst Case ±100 IRE Ramp
0.015
NTSC
0.010
0.005
PAL
0
012345678
Number of Loads − 150 Ω
0.10
0.09
0.08
°
0.07
0.06
DIFFERENTIAL PHASE
vs
NUMBER OF LOADS
Gain = 2
Rf = 1.3 kΩ
VS = ±5 V
40 IRE − NTSC and Pal
Worst Case ±100 IRE Ramp
0.05
0.04
PAL
0.03
NTSC
0.02
0.01
0
012 3 45 678
Number of Loads − 150 Ω
Figure 19
Figure 20
3
2
1
0
−1
−2
−3
0
SETTLING TIME
Rising Edge
Gain = −1
RL = 499 Ω
Rf = 249 Ω
f= 1 MHz
VS = ±5 V
Falling Edge
5
10
15
20
25
t − Time − ns
Figure 21
QUIESCENT CURRENT
vs
SUPPLY VOLTAGE
30
TA = 85°C
25
TA = 25°C
20
TA = −40°C
15
10
5
0
2 2.5 3
3.5 4
4.5 5
VS − Supply Voltage − ±V
Figure 22
OPEN-LOOP GAIN AND PHASE
vs
FREQUENCY
80
0
VS = ±5 V
70
20
60
Gain
40
50
60
40
80
30
100
20
Phase
120
10
140
0
160
−10
10 k
100 k 1 M 10 M 100 M
f − Frequency − Hz
180
1G
Figure 25
5
4
3
2
1
0
−1
−2
−3
−4
−5
10
OUTPUT VOLTAGE
vs
LOAD RESISTANCE
VS = ±5 V
TA = −40 to 85°C
100
1k
10 k
RL − Load Resistance − Ω
Figure 23
OPEN-LOOP GAIN
vs
CASE TEMPERATURE
85
80
TA = −40°C
75
TA = 25°C
70
TA = 85°C
65
60
55
50
2.5
3
3.5
4
4.5
5
Case Temperature − °C
Figure 26
FREQUENCY RESPONSE
vs
CAPACITIVE LOAD
0.5
0
−0.5
−1
−1.5
−2
R(ISO) = 25 Ω CL = 10 pF
R(ISO) = 15 Ω CL = 100 pF
R(ISO) = 10 Ω CL = 50 pF
−2.5 RL = 499 Ω
VS =±5 V
−3
1M
10 M
Capacitive Load − Hz
100 M
Figure 24
REJECTION RATIOS
vs
FREQUENCY
100
VS = ±5 V
90
80
PSRR+
70
60
50 CMRR
PSRR−
40
30
20
10
0
10 k
100 k
1M
10 M
f − Frequency − Hz
100 M
Figure 27
11