HA5023883 Datasheet, PDF (9/19 Pages) Intersil Corporation – Dual 125MHz Video Current Feedback Amplifier

TM
HA5023
DESIGN INFORMATION
January 1995
Dual 125MHz Video Current
Feedback Amplifier
The information contained in this section has been developed through characterization by Intersil Corporation and is for use as application
and design information only. No guarantee is implied.
Typical Performance Curves V_SUPPLY = ±5V, A_V = +1, R_F = 1kΩ, R_L = 400Ω, T_A = 25^oC, Unless Otherwise Specified.
+5
+4
+3
V_OUT = 0.2V_P-P
C_L = 10pF
A_V = 2, R_F = 681Ω
+2
A_V = 5, R_F = 1kΩ
+1
0
-1
-2
-3
A_V = 10, R_F = 383Ω
-4
-5
2
10
FREQUENCY (MHz)
A_V = 1, R_F = 1kΩ
100
200
FIGURE 1. NON-INVERTING FREQENCY RESPONSE
0
-45
-90
-135
-100
A_V = +1, R_F = 1kΩ ⁺¹⁸⁰
+135
+90
A_V = -1, R_F = 750Ω
A_V = +10, R_F = 383Ω
+45
0
-225
-45
-270
-315
-360
V_OUT = 0.2V_P-P
C_L = 10pF
A_V = -10, R_F = 750Ω
-90
-135
-180
2
10
100 200
FREQUENCY (MHz)
FIGURE 3. PHASE RESPONSE AS A FUNCTION OF FREQUENCY
+5
+4
+3
+2
+1
0
-1
-2
-3
-4
-5
2
V_OUT = 0.2V_P-P
C_L = 10pF
R_F = 750Ω
A_V = -10
A_V = -5
10
FREQUENCY (MHz)
A_V = -1
A_V = -2
100
200
FIGURE 2. INVERTING FREQUENCY RESPONSE
140
V_OUT = 0.2V_P-P
C_L = 10pF
A_V = +1
130
120
-3dB BANDWIDTH
10
5
GAIN PEAKING
500
700
900
1100
1300
FEEDBACK RESISTOR (Ω)
0
1500
FIGURE 4. BANDWIDTH AND GAIN PEAKING vs FEEDBACK
RESISTANCE
9