AD8432 Analog Devices, AD8432 Datasheet - Page 7

• 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

TYPICAL PERFORMANCE CHARACTERISTICS
V
G = 12.04 dB (single-ended input to differential output), f = 1 MHz, unless otherwise specified.
S
Figure 3. Small Signal Differential Gain vs. Frequency, R
= 5 V, T
Figure 4. Small Signal Frequency Response vs. R
Figure 5. Small Signal Frequency Response vs. R
–12
–18
–24
–12
–12
–18
–24
–30
24
21
18
15
12
–3
–6
–9
24
18
12
–6
30
24
18
12
–6
6
0
9
6
3
0
6
0
1
1
1
A
R
R
R
R
= 25°C, R
R
R
R
R
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
IN
IN
IN
IN
IN
IN
IN
IN
UNTERMINATED
= 200Ω
= 100Ω
= 50Ω
UNTERMINATED
= 200Ω
= 100Ω
= 50Ω
S
= R
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
10
FREQUENCY (MHz)
IN
= 50 Ω, R
FB
100
100
=150 Ω, C
100
IN
IN
, G = 12.04 dB
, G = 18.06 dB
IN
Unterminated
SH
= 47 pF, R
500
1k
1k
Rev. B | Page 7 of 28
SH
= 15 Ω, R
L
=500 Ω (per SE output), C
Figure 8. Differential Gain vs. Frequency, V
Figure 6. Small Signal Frequency Response vs. R
Figure 7. Small Signal Frequency Response vs. R
–12
–18
–24
–12
–18
–24
–12
–18
–24
24
18
12
–6
30
24
18
12
–6
30
24
18
12
–6
6
0
6
0
6
0
1
1
1
R
R
R
R
R
R
R
R
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
IN
IN
IN
IN
IN
IN
IN
IN
UNTERMINATED
= 200Ω
= 100Ω
= 50Ω
UNTERMINATED
= 200Ω
= 100Ω
= 50Ω
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
L
= 5 pF (per SE output),
OUT
100
100
100
= 1 V p-p, R
IN
IN
, G = 21.58 dB
, G = 24.08 dB
AD8432
IN
= 50 Ω
1k
1k
1k