AD8432 Analog Devices, AD8432 Datasheet - Page 9

• 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

Figure 17. Output-Referred Voltage Noise vs. Source Resistance (R
Figure 16. Input-Referred Voltage Noise vs. Source Resistance (R
100
100
0.1
0.1
10
10
10
Figure 15. Output Impedance vs. Frequency in Disable Mode
1
1
1
0.1
1
1
f = 1MHz
G = 18.06dB
G = 12.04dB
f = 1MHz
G = 24.08dB
G = 21.58dB
SOURCE RESISTANCE (Ω)
SOURCE RESISTANCE (Ω)
10
10
1
FREQUENCY (MHz)
R
NOISE ALONE
S
100
THERMAL
100
10
100
1k
1k
S
)
S
)
Rev. B | Page 9 of 28
1.00
0.95
0.90
0.85
0.80
0.75
0.70
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
16
14
12
10
0
0.01
–50
8
6
4
2
–50
Figure 19. Output Voltage Noise vs. Temperature
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
Figure 18. Input Voltage Noise vs. Temperature
Figure 20. Input Voltage Noise vs. Frequency
–30
–30
0.1
–10
–10
TEMPERATURE (°C)
FREQUENCY (MHz)
TEMPERATURE (°C)
G = 24.08dB
G = 18.06dB
10
G = 21.58dB
G = 12.04dB
10
1
30
30
50
50
10
70
70
AD8432
100
90
90