ISL55210 Datasheet, PDF (8/18 Pages) Intersil Corporation – Wideband, Low-Power, Ultra-High Dynamic Range Differential Amplifier

ISL55210
Typical Performance Curves V_S+ = 3.3V, T_A ≈ +25°C, unless otherwise noted. (Continued)
180
1.7
GROUP DELAY, G = 27dB
165
1.6
150
1.5
135
PHASE, G = 15dB _1.4
120
1.3
105
GROUP DELAY
90 _{G = 21dB}
75
GROUP DELAY
G = 15dB
60
TEST CIRCUIT #2
45
10
40
70
100
PHASE
G = 21dB
130
FREQUENCY (MHz)
1.2
1.1
1.0
PHASE _0.9
G = 27dB
0.8
160
190
FIGURE 14. PHASE AND GROUP DELAY vs GAIN
10.0
I_N (EACH INPUT)
1.0
E_N (DIFFERENTIAL)
0.1
10⁵
10⁶
10⁷
10⁸
FREQUENCY (Hz)
FIGURE 15. INPUT VOLTAGE AND CURRENT SPOT NOISE
3
R_F = 402Ω
R_F = 200Ω
0
-3
R_F = 1.6kΩ
-6
R_F = 806Ω
-9
-12
-15
-18
4-PORT S21 TEST, TEST CIRCUIT #2
-21
10⁷
10⁸
10⁹
FREQUENCY (Hz)
FIGURE 16. SMALL SIGNAL RESPONSE vs GAIN
10
SIMULATED TEST, TEST CIRCUIT #2
9
8
7
6
5
GAINS 12dB TO 30dB
4
3
2
1
0
1
10
100
FREQUENCY (MHz)
FIGURE 17. DIFFERENTIAL OUTPUT IMPEDANCE
1000
3
0
-3
200mV_P-P
10mV_P-P
-6
-9
-12
-15
-18 _{TEST CIRCUIT #3}
COMMON MODE AC OUTPUT
-21
1
10
FREQUENCY (MHz)
100
200
FIGURE 18. V_CM PIN INPUT FREQUENCY RESPONSE TO OUTPUT
COMMON MODE
8
-45
TEST CIRCUIT #3
COMMON MODE AC OUTPUT MEASUREMENTS
-50
-55
-60
-65
-70
-75
2
10
100
200
TEST FREQUENCY (MHz)
FIGURE 19. OUTPUT BALANCE ERROR
FN7811.0
March 2, 2011