AD8421 AD [Analog Devices], AD8421 Datasheet - Page 18

• Manufacturer Part Number: AD8421
• Description: 3 nV/?Hz, Low Power
• Manufacturer: AD [Analog Devices]

AD8421
Figure 54. Small Signal Pulse Response (G = 1000), R
Figure 53. Small Signal Pulse Response (G = 100), RL = 600 Ω, CL = 100 pF
Figure 52. Small Signal Pulse Response (G = 10), R
50mV/DIV
20mV/DIV
20mV/DIV
GAIN = 10
GAIN = 100
GAIN = 1000
L
= 600 Ω, C
L
= 600 Ω, C
1µs/DIV
1µs/DIV
2µs/DIV
L
= 100 pF
L
= 100 pF
Rev. 0 | Page 18 of 28
Figure 55. Small Signal Response with Various Capacitive Loads (G = 1),
–100
–110
–120
–130
–140
–150
–100
–110
–120
–130
–140
–150
–40
–50
–60
–70
–80
–90
–40
–50
–60
–70
–80
–90
Figure 56. Second Harmonic Distortion vs. Frequency (G = 1)
Figure 57. Third Harmonic Distortion vs. Frequency (G = 1)
NO LOAD
50mV/DIV
10
10
R
L
NO LOAD
R
R
≥ 600Ω
L
L
20pF 50pF
= 2kΩ
= 600Ω
100
100
100pF
FREQUENCY (Hz)
R
FREQUENCY (Hz)
L
= Infinity
1k
1k
V
V
Data Sheet
OUT
OUT
G = 1
1µs/DIV
= 10V p-p
= 10V p-p
10k
10k