Low Cost, 80 MHz
FastFET ™ Op Amps
a
AD8033/AD8034
FEATURES
CONNECTION DIAGRAMS
FET Input Amplifier
1 pA Typical Input Bias Current
Very Low Cost
SOIC-8 (R)
AD8033
SC70 (KS)
AD8033
High Speed
80 MHz, –3 dB Bandwidth (G = +1)
80 V/s Slew Rate (G = +2)
Low Noise
+V
NC
–IN
+IN
1
2
3
4
8
7
6
5
V
1
2
3
5
NC
+V
S
OUT
–V
S
S
11 nV/
0.6 fA/
√
Hz (f = 100 kHz)
–IN
4
V
+IN
OUT
√Hz (f = 100 kHz)
–V
S
NC
Wide Supply Voltage Range
5 V to 24 V
Low Offset Voltage, 1 mV Typical
Single-Supply and Rail-to-Rail Output
High Common-Mode Rejection Ratio –100 dB
Low Power
SOIC-8 and SOT-23-8 (RT)
AD8034
3.3 mA/Amplifier Typical Supply Current
No Phase Reversal
Small Packaging
V
1
2
3
4
8
7
6
5
+V
V
OUT1
S
–IN1
+IN1
OUT2
–IN2
+IN2
SOIC-8, SOT-23-8, and SC70
–V
S
APPLICATIONS
Instrumentation
Filters
Level Shifting
Buffering
24
21
18
15
12
9
G = +10
G = +5
V
= 200mV p-p
O
GENERAL DESCRIPTION
The AD8033/AD8034 FastFET amplifiers are voltage feedback
amplifiers with FET inputs, offering ease of use and excellent
performance. The AD8033 is a single amplifier and the
AD8034 is a dual amplifier. The AD8033/AD8034 FastFET
op amps in ADI’s proprietary XFCB process offer significant
performance improvements over other low cost FET amps, such as
G = +2
6
low noise (11 nV/
bandwidth and 80 V/µs slew rate).
√Hz and 0.6 fA/√Hz) and high speed (80 MHz
3
G = +1
0
With a wide supply voltage range from 5 V to 24 V and fully
operational on a single supply, the AD8033/AD8034 amplifiers
will work in more applications than similarly priced FET
input amps. In addition, the AD8033/AD8034 have rail-to-rail
outputs for added versatility.
–3
–6
–9
G = –1
0.01
1.0
10
FREQUENCY – MHz
100
1000
Despite their low cost, the amplifiers provide excellent overall
performance. They offer high common-mode rejection of
–100 dB, low input offset voltage of 2 mV max, and low noise
Figure 1. Small Signal Frequency Response
The AD8033 is available in small packages: SOIC-8 and SC70.
The AD8034 is also available in small packages: SOIC-8 and
SOT-23-8. They are rated to work over the industrial temperature
range of –40°C to +85°C without a premium over commercial
grade products.
of 11 nV/√Hz.
The AD8033/AD8034 amplifiers only draw 3.3 mA/amplifier of
quiescent current while having the capability of delivering up to
40 mA of load current.
REV. B
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