50 MHz, Precision, Low Distortion,
Low Noise CMOS Amplifiers
Preliminary Technical Data
AD8651/AD8652
FEATURES
Single Supply Operation: 2.7 V to 5.5 V
Space-Saving MSOP and TSSOP Packaging
Bandwidth: 50 MHz @ 5 V
Offset Voltage: 100uV typ
41 V/us Slew Rate
Rail-to-Rail Input and Output Swing
Input Bias Current: 1 pA
Supply Current: 8 mA/op amp
APPLICATIONS
Optical Communications
Laser Source Drivers / Controllers
Broadband Communications
High speed ADC and DAC
Microwave link interface
Cellphone PA control
Video line driver
Audio
GENERAL DESCRIPTION
PIN CONFIGURATIONS
8-Lead MSOP
(RM-8)
8-Lead SO
(R-8)
AD8651
AD8652
8-Lead SO
(R-8)
AD8651
The AD8651 and AD8652 are high precision low noise low
Distortion Rail-to-Rail CMOS operational amplifiers
running at single supply voltage from 2.7V to 5V.
The single and dual amplifiers are both offered in the 8-
Lead SOIC package and the single is also offered in the
8- Lead MSOP package.
The AD8651/2 features high speed, high bandwidth, low
noise and high precision. They are rail-to-rail output
amplifiers with a gain bandwidth of 50 MHz and typical
voltage offset of 150uV from a 5V supply. It also features
low noise of 5nV per square root Hertz.
The AD8651/2 can be used in communication areas, such
as cell phone transmission power control, fiber optics
networking, wireless networking and video line drivers.
The AD86512 are specified over the extended industrial (-
40°C to +125C°) temperature range.
REV. PrB
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, which may
result from its use. No license is granted by implication or otherwise under any
patent or patent rights of Analog Devices.
One Technology Way, PO Box 9106, Norwood, MA 02062-9106, USA
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2003
Preliminary Technical Data
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
V
OS
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
Offset Voltage Drift
Input Bias Current
I
B
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
Input Offset Current
I
OS
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
Input Voltage Range
Common-Mode Rejection Ratio
V
CM
CMRR
V
+
= 2.7V
,
0V<V
CM
<2.7V
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
V
+
= 2.7V
,
0V<V
CM
<2.7V
Large Signal Voltage Gain
A
VO
R
L
= 10 kΩ , 50mV<Vo<2.65V
R
L
= 1 kΩ, 200mV<Vo<2.5V
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short Circuit Limit
100
0
75
70
70
66
85
120
125
1
4
1
Conditions
Min
Typ
100
AD8651/AD8652
Max
300
tbd
tbd
10
Units
uV
uV
uV
uV/
o
C
pA
ELECTRICAL CHARACTERISTICS
(V+=+2.7V, V-=+0V, VCM = V+/2, TA=+25°C unless otherwise specified.)
20
pA
V
+
90
V
dB
dB
dB
dB
dB
V
OH
V
OL
I
SC
I
L
= 250uA
I
L
= 250uA
Sourcing
-40°C
≤
T
A
≤
+125°C
Sinking
-40°C
≤
T
A
≤
+125°C
2.68
20
80
V
mV
mA
mA
mA
mA
mA
Output Current
Capacitive Load Drive
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Setting Time, 0.1%
Overload Recovery Time
Total Harmonic Distortion + Noise
NOISE PERFORMANCE
Voltage Noise Density
Current Noise Density
I
O
C
load
PSRR
I
SY
+40
See Performance Curve
V
S
= 2.7V to 5.5V, V
CM
=0V
-40°C
≤
T
A
≤
+125°C
I
O
= 0
-40°C
≤
T
A
≤
+125°C
76
75
8
10
12
41
50
0.2
0.1
0.0006
7
5.6
4
85
dB
dB
mA
mA
V/µs
MHz
uS
uS
%
nV/√Hz
nV/√Hz
fA/√Hz
SR
GBP
G=1, R
L
=10 kΩ, C
L
=100pF,
G=1, C
L
=100pF
G=±1, 2V Step
V
IN
•
G =V
+
THD+N
e
n
in
G = 1, R
L
=600
Ω,
f = 1 kHz
f = 10 kHz
f = 100 kHz
f=10 KHz
REV. PrB
–2–
Preliminary Technical Data
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
V
OS
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
Offset Voltage Drift
Input Bias Current
I
B
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
Input Offset Current
I
OS
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
Input Voltage Range
Common-Mode Rejection Ratio
V
CM
CMRR
V
+
=5V
,
0V<V
CM
<5V
-40°C
≤
T
A
≤
+85°C
-40°C
≤
T
A
≤
+125°C
V
+
= 5V
,
0V<V
CM
<5V
Large Signal Voltage Gain
A
VO
R
L
= 10 kΩ , 50mV<Vo<4.95V
R
L
= 1 kΩ, 200mV<Vo<4.8V
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short Circuit Limit
100
0
75
70
70
66
85
1
4
1
Conditions
Min
AD8651/AD8652
Typ
100
Max
300
tbd
tbd
10
Units
uV
uV
uV
uV/
o
C
pA
ELECTRICAL CHARACTERISTICS
(V+=+5V, V-=+0V, VCM = V+/2, TA=+25°C unless otherwise specified.)
20
pA
V
+
90
V
dB
dB
dB
120
125
dB
dB
V
OH
V
OL
I
SC
I
L
= 250uA
I
L
= 250uA
Sourcing
-40°C
≤
T
A
≤
+125°C
Sinking
-40°C
≤
T
A
≤
+125°C
4.98
20
80
V
mV
mA
mA
mA
mA
mA
Output Current
Capacitive Load Drive
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Setting Time, 0.1%
Overload Recovery Time
Total Harmonic Distortion + Noise
NOISE PERFORMANCE
Voltage Noise Density
Current Noise Density
I
O
C
load
PSRR
I
SY
+40
See Performance Curve
V
S
= 2.7V to 5.5V, V
CM
=0V
-40°C
≤
T
A
≤
+125°C
I
O
= 0
-40°C
≤
T
A
≤
+125°C
76
75
8
10
12
41
50
0.2
0.1
0.0006
7
5.6
4
85
dB
dB
mA
mA
V/µs
MHz
uS
uS
%
nV/√Hz
nV/√Hz
fA/√Hz
SR
GBP
G=1, R
L
=10 kΩ, C
L
=100pF,
G=1, C
L
=100pF
G=±1, 2V Step
V
IN
•
G =V
+
THD+N
e
n
in
G = 1, R
L
=600
Ω,
f = 1 kHz
f = 10 kHz
f = 100 kHz
f=10 KHz
REV. PrB
–3–
Preliminary Technical Data
ABSOLUTE MAXIMUM RATINGS
1
Supply Voltage ...........................................................+5.5V
Input Voltage ..........................................GND to Vs + 0.3V
Differential Input Voltage
1
.........................................
±
5.5V
Output Short-Circuit Duration to Gnd ................... Indefinite
Storage Temperature Range
N, R Package...................................... -65°C to +150°C
Operating Temperature Range
.......................................................... -40°C to +125°C
Junction Temperature Range
N, R Package...................................... -65°C to +150°C
Lead Temperature Range (Soldering, 10 sec)............ +300°C
Package Type
8-Pin MSOP (RM)
8-Pin SOIC (R)
NOTES
AD8651/AD8652
θ
JA
210
158
θ
JC
45
43
Units
°C/W
°C/W
1 Absolute maximum ratings apply at 25°C, unless otherwise noted.
2
θ
is specified for the worst-case conditions, i.e.,
θ
is specified for device soldered in
JA
JA
circuit board for surface mount packages.
ORDERING GUIDE
Model
AD8651ARM-Reel
AD8651AR
AD8651AR-Reel
AD8651AR-Reel7
AD8652AR
AD8652AR-Reel
AD8652AR-Reel7
Temperature
Range
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
Package
Description
8-Pin MSOP
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
Package
Option
RM-8
R-8
R-8
R-8
R-8
R-8
R-8
Branding
Information
XXX
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 2000 V
readily accumulate on the human body and test equipment and can discharge without
detection. Although this device features proprietary ESD protection circuitry, permanent
damage may occur on devices subjected to high-energy electrostatic discharges.
Therefore, proper ESD precautions are recommended to avoid performance degradation or
loss of functionality.
REV. PrB
–4–
Preliminary Technical Data
8-Lead
µSOIC
(RM-8)
AD8651/AD8652
8-Lead SO
(R-8)
REV. PrB
–5–
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