D ts e t
aa h e
R c e t r lc r nc
o h se Ee to is
Ma u a t r dCo o e t
n fc u e
mp n n s
R c e tr b a d d c mp n ns ae
o h se rn e
o oet r
ma ua trd u ig ete dewaes
n fcue sn i r i/ fr
h
p rh s d f m te oiia s p l r
uc a e r
o h r n l u pi s
g
e
o R c e tr waes rce td f m
r o h se
fr e rae r
o
te oiia I. Al rce t n ae
h
r nl P
g
l e rai s r
o
d n wi tea p o a o teOC
o e t h p rv l f h
h
M.
P r aetse u igoiia fcoy
at r e td sn r n la tr
s
g
ts p o rmso R c e tr e eo e
e t rga
r o h se d v lp d
ts s lt n t g aa te p o u t
e t oui s o u rne
o
rd c
me t o e c e teOC d t s e t
es r x e d h
M aa h e.
Qu l yOv riw
ai
t
e ve
• IO- 0 1
S 90
•A 92 cr ct n
S 1 0 et ai
i
o
• Qu l e Ma ua trr Ls (
ai d
n fcues it QML MI- R -
) LP F
385
53
•C a sQ Mitr
ls
lay
i
•C a sVS a eL v l
ls
p c ee
• Qu l e S p l r Ls o D sr uos( L )
ai d u pi s it f it b tr QS D
e
i
•R c e trsacic l u pir oD A a d
o h se i
r ia s p l t L n
t
e
me t aln u t a dD A sa d r s
es lid sr n L tn ad .
y
R c e tr lcrnc , L i c mmi e t
o h se Ee t is L C s o
o
tdo
t
s p ligp o u t ta s t f c so r x e t-
u pyn rd cs h t ai y u tme e p ca
s
t n fr u lya daee u loto eoiial
i s o q ai n r q a t h s r n l
o
t
g
y
s p l db id sr ma ua trr.
u pi
e yn ut
y n fcues
T eoiia ma ua trr d ts e t c o a yn ti d c me t e e t tep r r n e
h r n l n fcue’ aa h e a c mp n ig hs o u n r cs h ef ma c
g
s
o
a ds e ic t n o teR c e tr n fcue v rino ti d vc . o h se Ee t n
n p c ai s f h o h se ma ua trd eso f hs e ie R c e tr lcr -
o
o
isg aa te tep r r n eo i s mio d co p o u t t teoiia OE s e ic -
c u rne s h ef ma c ft e c n u tr rd cs o h r n l M p c a
o
s
g
t n .T pc lv le aefr eee c p r o e o l. eti mii m o ma i m rt g
i s ‘y ia’ au s r o rfrn e up s s ny C r n nmu
o
a
r xmu ai s
n
ma b b s do p o u t h rceiain d sg , i lt n o s mpetsig
y e a e n rd c c aa tr t , e in smuai , r a l e t .
z o
o
n
© 2 1 R cetr l t n s LC Al i t R sre 0 1 2 1
0 3 ohs E cr i , L . lRg s eevd 7 1 0 3
e e oc
h
T l r m r, l s v iw wrcl . m
o e n oe p ae it w . e c o
a
e
s
o ec
Low Cost, High Performance
Voltage Feedback, 325 MHz Amplifier
AD8057/AD8058
FEATURES
Low cost single (AD8057) and dual (AD8058)
High speed
325 MHz, −3 dB bandwidth (G = +1)
1000 V/μs 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 kΩ
Wide supply range from 3 V to 12 V
Small packaging
AD8057 is available in an 8-lead SOIC and 5-lead SOT-23
AD8058 is available in an 8-lead SOIC and an 8-lead MSOP
CONNECTION DIAGRAMS
AD8057
V
OUT 1
–V
S 2
+IN
3
(Not to Scale)
4
–IN
01064-001
5
+V
S
Figure 1. RT-5 (SOT-23)
NC
1
–IN
2
+IN
3
–V
S 4
(Not to Scale)
AD8057
8
7
6
5
NC
+V
S
V
OUT
NC
01064-002
NC = NO CONNECT
Figure 2. R-8 (SOIC)
OUT1
–IN1
+IN1
–V
S
1
2
3
4
(Not to Scale)
APPLICATIONS
Imaging
DVD/CD
Photodiode preamp
Analog-to-digital driver
Professional cameras filters
AD8058
8
7
6
5
+V
S
OUT2
–IN2
01064-003
+IN2
Figure 3. RM-8 (MSOP) and R-8 (SOIC)
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 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 5-lead SOT-23 (AD8057) and 8-lead
MSOP (AD8058) packages. These amplifiers are available in the
industrial temperature range of −40°C to +85°C.
5
4
3
2
GAIN (dB)
1
0
–1
G = +5
–2
–3
G = +10
–4
1
10
100
1000
01064-004
G = +1
G = +2
–5
FREQUENCY (MHz)
Figure 4. Small Signal Frequency Response
Rev.
C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
www.analog.com
Tel: 781.329.4700
Fax: 781.461.3113
©2010 Analog Devices, Inc. All rights reserved.
AD8057/AD8058
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Connection
Diagrams....................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Maximum Power Dissipation ..................................................... 5
ESD Caution .................................................................................. 5
Typical Performance Characteristics ..............................................6
Test Circuits..................................................................................... 12
Applications Information .............................................................. 13
Driving Capacitive Loads .......................................................... 13
Video Filter .................................................................................. 13
Differential Analog-to-Digital Driver ..................................... 14
Layout .......................................................................................... 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 16
REVISION HISTORY
10/10—Rev. B to Rev. C
Updated Format .................................................................. Universal
Change to Third-Order Intercept Parameter, Table 1 ................. 3
Changes to Input Common-Mode Voltage Range Parameter,
Table 2 ................................................................................................ 4
Changes to Figure 32 ...................................................................... 10
Changes to Figure 35 ...................................................................... 11
Changes to Figure 41 and Figure 42............................................. 12
Changes to Figure 44 and Figure 45............................................. 13
Changes to Ordering Guide .......................................................... 16
8/03—Rev. A to Rev. B
Renumbered Figures and TPCs ........................................ Universal
Changes to Ordering Guide .............................................................4
Change to Figure 8 ......................................................................... 12
Update Outline Dimensions ......................................................... 14
Rev.
C
| Page 2 of 16
AD8057/AD8058
SPECIFICATIONS
@ T
A
= 25°C, V
S
= ±5 V, R
L
= 100 Ω, R
F
= 0 Ω, gain = +1, unless otherwise noted.
Table 1.
Parameter
DYNAMIC PERFORMANCE
–3 dB Bandwidth
Conditions
G = +1, V
O
= 0.2 V p-p
G = –1, V
O
= 0.2 V p-p
G = +1, V
O
= 2 V p-p
G = +1, V
O
= 0.2 V p-p
G = +1, V
O
= 2 V step, R
L
= 2 kΩ
G = +1, V
O
= 4 V step, R
L
= 2 kΩ
G = +2, V
O
= 2 V step
f
C
= 5 MHz, V
O
= 2 V p-p, R
L
= 1 kΩ
f
C
= 20 MHz, V
O
= 2 V p-p, R
L
= 1 kΩ
f = 5 MHz, V
O
= 2 V p-p, R
L
= 150 Ω
f = 5 MHz, V
O
= 2 V p-p
f = 5 MHz, G = +2
f = 100 kHz
f = 100 kHz
NTSC, G = +2, R
L
= 150 Ω
NTSC, G = +2, R
L
= 1 kΩ
NTSC, G = +2, R
L
= 150 Ω
NTSC, G = +2, R
L
= 1 kΩ
V
IN
= 200 mV p-p, G = +1
Min
Typ
325
95
175
30
850
1150
30
–85
–62
–68
−35
−60
7
0.7
0.01
0.02
0.15
0.01
30
1
2.5
3
0.5
3.0
50
50
55
52
10
2
−4.0
48
−4.0
±3.9
30
±1.5
±5.0
6.0
14.0
59
±6
7.5
15
+4.0
60
+4.0
5
Max
Unit
MHz
MHz
MHz
MHz
V/µs
V/µs
ns
dBc
dBc
dB
dBm
dB
nV/√Hz
pA/√Hz
%
%
Degrees
Degrees
ns
mV
mV
μV/°C
µA
µA
µA
dB
dB
MΩ
pF
V
dB
V
V
pF
V
mA
mA
dB
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/HARMONIC PERFORMANCE
Total Harmonic Distortion
SFDR
Third-Order Intercept
Crosstalk, Output to Output
Input Voltage Noise
Input Current Noise
Differential Gain Error
Differential Phase Error
Overload Recovery
DC PERFORMANCE
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
T
MIN
to T
MAX
2.5
±0.75
T
MIN
to T
MAX
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
OUTPUT CHARACTERISTICS
Output Voltage Swing
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current for AD8057
Quiescent Current for AD8058
Power Supply Rejection Ratio
V
O
= ±2.5 V, R
L
= 2 kΩ
V
O
= ±2.5 V, R
L
= 150 Ω
+Input
R
L
= 1 kΩ
V
CM
= ±2.5 V
R
L
= 2 kΩ
R
L
= 150 Ω
30% overshoot
V
S
= ±5 V to ±1.5 V
54
Rev.
C
| Page 3 of 16
AD8057/AD8058
@ T
A
= 25°C, V
S
= 5 V, R
L
= 100 Ω, R
F
= 0 Ω, gain = +1, unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
–3 dB Bandwidth
Bandwidth for 0.1 dB Flatness
Slew Rate
Settling Time to 0.1%
NOISE/HARMONIC PERFORMANCE
Total Harmonic Distortion
Crosstalk, Output to Output
Input Voltage Noise
Input Current Noise
Differential Gain Error
Differential Phase Error
DC PERFORMANCE
Input Offset Voltage
T
MIN
to T
MAX
Input Offset Voltage Drift
Input Bias Current
T
MIN
to T
MAX
Input Offset Current
Open-Loop Gain
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
Input Common-Mode Voltage Range
Common-Mode Rejection Ratio
OUTPUT CHARACTERISTICS
Output Voltage Swing
Capacitive Load Drive
POWER SUPPLY
Operating Range
Quiescent Current for AD8057
Quiescent Current for AD8058
Power Supply Rejection Ratio
V
O
= ±1.5 V, R
L
= 2 kΩ to midsupply
V
O
= ±1.5 V, R
L
= 150 Ω to midsupply
50
45
Conditions
G = +1, V
O
= 0.2 V p-p
G = +1, V
O
= 2 V p-p
V
O
= 0.2 V p-p
G = +1, V
O
= 2 V step, R
L
= 2 kΩ
G = +2, V
O
= 2 V step
f
C
= 5 MHz, V
O
= 2 V p-p, R
L
= 1 kΩ
f
C
= 20 MHz, V
O
= 2 V p-p, R
L
= 1 kΩ
f = 5 MHz, G = +2
f = 100 kHz
f = 100 kHz
NTSC, G = +2, R
L
= 150 Ω
NTSC, G = +2, R
L
= 1 kΩ
NTSC, G = +2, R
L
= 150 Ω
NTSC, G = +2, R
L
= 1 kΩ
Min
Typ
300
155
28
700
35
–75
–54
−60
7
0.7
0.05
0.05
0.10
0.02
1
2.5
3
0.5
3.0
55
52
10
2
0.9 to 3.4
60
0.9 to 3.4
1.2 to 3.8
30
3
5.0
5.4
13.5
58
10
7.0
14
5
Max
Unit
MHz
MHz
MHz
V/µs
ns
dBc
dBc
dB
nV/√Hz
pA/√Hz
%
%
Degrees
Degrees
mV
mV
μV/°C
µA
µA
µA
dB
dB
MΩ
pF
V
dB
V
V
pF
V
mA
mA
dB
2.5
0.75
+Input
R
L
= 1 kΩ
V
CM
= ±2.5 V
R
L
= 2 kΩ
R
L
= 150 Ω
30% overshoot
48
54
Rev.
C
| Page 4 of 16
