AD8008 Analog Devices, AD8008 Datasheet - Page 16

• Manufacturer Part Number: AD8008
• Description: Ultralow Distortion, High Speed Amplifiers
• Manufacturer: Analog Devices

Specifications of AD8008

• -3db Bandwidth: 650MHz
• Slew Rate: 1kV/µs
• Vos: 500µV
• Ib: 4µA
• # Opamps Per Pkg: 2
• Input Noise (nv/rthz): 2.7nV/rtHz
• Vcc-vee: 5V to 12V
• Isy Per Amplifier: 10.2mA
• Packages: SOIC,SOP

AD8007/AD8008
Whenever physical layout considerations prevent the decoupling
scheme shown in Figure 53, the user can connect one of the
high frequency decoupling capacitors directly across the supplies
and connect the other high frequency decoupling capacitor to
ground (see Figure 54).
Figure 54. High Frequency Capacitors Connected Across the Supplies
499Ω
R
IN
G
200Ω
R
+V
–V
S
0.1µF
(Recommended)
S
10µF
S
C1
AD8007
+
+
10µF
0.1µF
499Ω
C2
R
F
OUT
Rev. E | Page 16 of 20
LAYOUT CONSIDERATIONS
The standard noninverting configuration with recommended
power supply bypassing is shown in Figure 54. The 0.1 μF high
frequency decoupling capacitors should be X7R or NPO chip
components. Connect C2 from the +V
Connect C1 from the +V
The length of the high frequency bypass capacitor leads is critical.
Parasitic inductance due to long leads works against the low
impedance created by the bypass capacitor. The ground for the
load impedance should be at the same physical location as the
bypass capacitor grounds. For larger value capacitors, which are
intended to be effective at lower frequencies, the current return
path distance is less critical.
S
pin to signal ground.
S
pin to the −V
S
pin.