AD8067 Datasheet, PDF (1/24 Pages) Analog Devices – High Gain Bandwidth Product Precision Fast FET™ Op Amp

FEATURES
• FET input amplifier: 0.6 pA input bias current
• Stable for gains ≥8
• High speed
• 54 MHz, –3 dB bandwidth (G = +10)
• 640 V/µs slew rate
• Low noise
• 6.6 nV/√Hz
• 0.6 fA/√Hz
• Low offset voltage (1.0 mV max)
• Wide supply voltage range: 5 V to 24 V
• No phase reversal
• Low input capacitance
• Single-supply and rail-to-rail output
• Excellent distortion specs: SFDR 95 dBc @ 1 MHz
• High common-mode rejection ratio: –106 dB
• Low power: 6.5 mA typical supply current
• Low cost
• Small packaging: SOT-23-5
APPLICATIONS
• Photodiode preamplifier
• Precision high gain amplifier
• High gain, high bandwidth composite amplifier
GENERAL DESCRIPTION
The AD8067 Fast FET amp is a voltage feedback amplifier with
FET inputs offering wide bandwidth (54 MHz @ G = +10) and high
slew rate (640 V/µs). The AD8067 is fabricated in a proprietary,
dielectrically isolated eXtra Fast Complementary Bipolar process
(XFCB) that enables high speed, low power, and high performance
FET input amplifiers.
The AD8067 is designed to work in applications that require high
speed and low input bias current, such as fast photodiode
preamplifiers. As required by photodiode applications, the laser
trimmed AD8067 has excellent dc voltage offset (1.0 mV max)
and drift (15 µV/°C max).
High Gain Bandwidth Product
Precision Fast FET ^™ Op Amp
AD8067
CONNECTION DIAGRAM
SOT-23-5 (RT-5)
V_OUT 1
5 +VS
–V_S 2
+IN 3
4 –IN
Figure 1. Connection Diagram (Top View)
The FET input bias current (5 pA max) and low voltage noise
(6.6 nV/√Hz) also contribute to making it appropriate for precision
applications. With a wide supply voltage range (5 V to 24 V) and
rail-to-rail output, the AD8067 is well suited to a variety of
applications that require wide dynamic range and low distortion.
The AD8067 amplifier consumes only 6.5 mA of supply current,
while capable of delivering 30 mA of load current and driving
capacitive loads of 100 pF. The AD8067 amplifier is available in a
SOT-23-5 package and is rated to operate over the industrial
temperature range, –40°C to +85°C.
28
G = +20
26
24
22
G = +10
20
18
G = +8
16
14
12
10
8
0.1
1
10
100
FREQUENCY – MHz
Figure 2. Small Signal Frequency Response
Rev. 0
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