Features: FET input amplifier
1 pA input bias current
Low cost
High speed: 145 MHz, −3 dB bandwidth (G = +1)
180 V/µs slew rate (G = +2)
Low noise
7 nV/Hz (f = 10 kHz)
0.6 fA/Hz (f = 10 kHz)
Wide supply voltage range: 5 V to 24 V
Single-supply and rail-to-rail output
Low offset voltage 1.5 mV max
High common-mode rejection ratio: −100 dB
Excellent distortion specifications
SFDR −88 dB @ 1 MHz
Low power: 6.4 mA/amplifier
typical supply current
No phase reversal
Small packaging: SOIC-8, SOT-23-5, and MSOP ApplicationInstrumentation
Photodiode preamps
Filters
A/D drivers
Level shifting
Buffering Specifications
| Parameter |
Rating |
|
Supply Voltage
Power Dissipation
Common-Mode Input Voltage
Differential Input Voltage
Storage Temperature
Operating Temperature Range
Lead Temperature Range
(Soldering, 10 sec) |
26.4 V
See Figure 3
VEE− 0.5 V to VCC+ 0.5V
1.8 V
−65°C to +125°C
−40°C to +85°C
300°C |
| -3dB Bandwidth |
145MHz |
| Slew Rate |
180V/s |
| Vos |
400V |
| Ib |
2pA |
| Input Noise (nV/rtHz) |
7nV/rtHz |
| Vcc-Vee Supply (V) |
5 to 24 |
| Iq per Amplifier |
7.4mA |
| # OpAmps per Pkg |
2 |
| Operating Temp Range |
-40 to +85 |
| Packages |
SOIC,SOP |
DescriptionThe AD8065/AD80661FastFET amplifiers are voltage feedback amplifiers with FET inputs offering high performance and ease of use. The AD8065 is a single amplifier, and the AD8066 is a dual amplifier. These amplifiers are developed in the Analog Devices, Inc. proprietary XFCB process and allow exceptionally low noise operation (7.0 nV/Hz and 0.6 fA/ Hz) as well as
very high input impedance.
With a wide supply voltage range from 5 V to 24 V, the ability to operate on single supplies, and a bandwidth of 145 MHz, the AD8065/AD8066 are designed to work in a variety of applications. For added versatility, the amplifiers also contain rail-to-rail outputs.
Despite the low cost, the amplifiers provide excellent overall performance. The differential gain and phase errors of 0.02% and 0.02°, respectively, along with 0.1 dB flatness out to 7 MHz, make these amplifiers ideal for video applications. Additionally, they offer a high slew rate of 180 V/µs, excellent distortion (SFDR of −88 dB @ 1 MHz), extremely high common-mode rejection of −100 dB, and a low input offset voltage of 1.5 mV maximum under warmed up conditions. The AD8065/AD8066
AD8066 Data Sheet
