AD8432 Analog Devices, AD8432 Datasheet - Page 16

• Manufacturer Part Number: AD8432
• Description: Dual-Channel Ultralow Noise Amplifier with Selectable Gain and Input Impedance
• Manufacturer: Analog Devices

Specifications of AD8432

• Vcc-vee: 4.5V to 5.5V
• Isy Per Amplifier: 12mA
• Packages: CSP
• -3db Bandwidth: 200MHz
• Slew Rate: 170V/µs
• Vos: 1mV
• Ib: n/a
• # Opamps Per Pkg: 2
• Input Noise (nv/rthz): 0.8nV/rtHz

AD8432
TEST CIRCUITS
(10MHz)
(10MHz)
(10MHz LPF)
1MHz
(10MHz LPF)
1MHz
1MHz
1MHz
R
R
C
C
SH
SH
SH
SH
R
C
SH
SH
0.1µF
0.1µF
0.1µF
0.1µF
R
0.1µF
FB
R
INH
INL
Figure 58. Harmonic Distortion vs. Capacitive Load (C
R
INH
INL
0.1µF
FB
Figure 57. Harmonic Distortion vs. Resistive Load (R
FB
0.1µF
INH
INL
AD8432
0.1µF
LNA1
0.1µF
AD8432
INH
INL
AD8432
LNA1
OUT
0.1µF
LNA1
OPL
OPH
OPL
OPH
Figure 59. Frequency Response Measurements
OPL
OPH
Figure 60. Voltage Noise Measurements
AD8432
0.1µF
50Ω
0.1µF
LNA1
0.1µF
0.1µF
ANALYZER
NETWORK
OPL
OPH
487Ω
0.1µF
Rev. B | Page 16 of 28
0.1µF
50Ω
0.1µF
26.1Ω
R
L
26.1Ω
487Ω
0.1µF
0.1µF
IN
R
L
1kΩ
1kΩ
499Ω
R
INH
INL
AD8129
L
C
499Ω
G = 10
L
AD8130
L
) Measurements
G = 1
1:1
L
) Measurements
475Ω
5pF
5pF
SPECTRUM
ANALYZER
56.2Ω
50Ω
DUAL FILTER
(10.7MHz)
PROBE
1.7MHz
DIFF
DUAL FILTER
(10.7MHz)
1.7MHz
LP
HP
50Ω
HP
LP
50Ω
IN
SPECTRUM
ANALYZER
SPECTRUM
ANALZYER
50Ω
50Ω