AD8655 Analog Devices, AD8655 Datasheet - Page 17

• Manufacturer Part Number: AD8655
• Description: Low Noise, Precision CMOS Amplifier
• Manufacturer: Analog Devices

Specifications of AD8655

• -3db Bandwidth: 28MHz
• Slew Rate: 11V/µs
• Vos: 50µV
• Ib: 10pA
• # Opamps Per Pkg: 1
• Input Noise (nv/rthz): 4nV/rtHz
• Vcc-vee: 2.7V to 5.5V
• Isy Per Amplifier: 4.5mA
• Packages: SOIC,SOP

Data Sheet
THD Readings vs. Common-Mode Voltage
Total harmonic distortion of the AD8655/AD8656 is well below
0.0007% with a load of 1 kΩ. This distortion is a function of the
circuit configuration, the voltage applied, and the layout, in
addition to other factors.
V
Figure 59. THD + N Test Circuit
IN
–
AD8655
+
+2.5V
–2.5V
R
L
V
OUT
Rev. B | Page 17 of 20
0.0005
0.0002
0.0001
0.005
0.002
0.001
0.05
0.02
0.01
1.0
0.5
0.2
0.1
20
SWEEP 1:
V
R
IN
L
= 10kΩ
= 2V p-p
50
Figure 60. THD + Noise vs. Frequency
100
200
500
SWEEP 2
SWEEP 1
AD8655/AD8656
Hz
1k
2k
5k
SWEEP 2:
V
R
10k
IN
L
= 1kΩ
= 2V p-p
20k
50k
80k