AD8057_03 Datasheet, PDF (1/16 Pages) Analog Devices – Low Cost, High Performance Voltage Feedback, 325 MHz Amplifiers

Low Cost, High Performance
Voltage Feedback, 325 MHz Amplifiers
AD8057/AD8058
FEATURES
Low Cost Single (AD8057) and Dual (AD8058)
High Speed
325 MHz –3 dB Bandwidth (G = +1)
1000 V/␮s Slew Rate
Gain Flatness 0.1 dB to 28 MHz
Low Noise
7 nV/√Hz
Low Power
5.4 mA/Amplifier Typical Supply Current @ 5 V
Low Distortion
–85 dBc @ 5 MHz, R_L = 1 k⍀
Wide Supply Range from 3 V to 12 V
Small Packaging
AD8057 Available in SOIC-8 and SOT-23-5
AD8058 Available in SOIC-8 and MSOP
APPLICATIONS
Imaging
DVD/CD
Photodiode Preamp
A-to-D Driver
Professional Cameras
Filters
CONNECTION DIAGRAMS (TOP VIEW)
RT-5 (SOT-23-5)
R-8 (SOIC)
V_OUT 1
AD8057
5 +V_S
–V_S 2
+IN 3
4 –IN
(Not to Scale)
NC ¹
8 NC
–IN 2
7 +V_S
+IN 3
6 V_OUT
–V_S
4
AD8057
(Not to Scale)
5
NC
NC = NO CONNECT
RM-8 (MSOP)
R-8 (SOIC)
OUT1 1
–IN1 2
AD8058
8 +V_S
7 OUT2
+IN1 3
6 –IN2
–V_S 4
(Not to Scale)
5 +IN2
GENERAL DESCRIPTION
The AD8057 (single) and AD8058 (dual) are very high perfor-
mance amplifiers with a very low cost. The balance between
cost and performance make them ideal for many applications.
The AD8057 and AD8058 will reduce the need to qualify a
variety of specialty amplifiers.
The AD8057 and AD8058 are voltage feedback amplifiers with
the bandwidth and slew rate normally found in current feedback
amplifiers. The AD8057 and AD8058 are low power amplifiers
having low quiescent current and a wide supply range from 3 V
to 12 V. They have noise and distortion performance required
for high end video systems as well as dc performance parameters
rarely found in high speed amplifiers.
The AD8057 and AD8058 are available in standard SOIC
packaging as well as tiny SOT-23-5 (AD8057) and MSOP
(AD8058) packages. These amplifiers are available in the indus-
trial temperature range of –40°C to +85°C.
5
4
3
2
1
0
G = +1
–1
G = +5
–2
–3
G = +10
–4
G = +2
–5
1
10
100
1000
FREQUENCY (MHz)
Figure 1. Small Signal Frequency Response
REV. B
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