a
FEATURES
Single-Supply Operation: 1.8 V to 5 V
Offset Voltage: 6 mV Max
Space-Saving SOT-23 and SC70 Packages
Slew Rate: 2.7 V/ s
Bandwidth: 5 MHz
Rail-to-Rail Input and Output Swing
Low Input Bias Current: 2 pA Typ
Low Supply Current @ 1.8 V: 450 A Max
APPLICATIONS
Portable Communications
Portable Phones
Sensor Interfaces
Laser Scanners
PCMCIA Cards
Battery-Powered Devices
New Generation Phones
Personal Digital Assistants
1.8 V Low Power CMOS Rail-to-Rail
Input/Output Operational Amplifier
AD8515
PIN CONFIGURATION
5-Lead SC70 and SOT-23
(KS and RT Suffixes)
OUT
1
V–
5
V+
2
AD8515
4
IN
+IN
3
GENERAL DESCRIPTION
The AD8515 is a rail-to-rail amplifier that can operate from a
single-supply voltage as low as 1.8 V.
The AD8515 single amplifier, available in SOT-23-5L and
SC70-5L packages, is small enough to be placed next to sensors,
reducing external noise pickup.
The AD8515 is a rail-to-rail input and output amplifier with a
gain bandwidth of 5 MHz and typical offset voltage of 1 mV
from a 1.8 V supply. The low supply current makes these parts
ideal for battery-powered applications. The 2.7 V/ms slew rate
makes the AD8515 a good match for driving ASIC inputs, such
as voice codecs.
The AD8515 is specified over the extended industrial tempera-
ture range (–40∞C to +125∞C).
REV. B
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. 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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.
AD8515–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(V = 1.8 V, V
S
CM
= V
S
/2, T
A
= 25 C, unless otherwise noted.)
Min
Typ
1
2
Max
6
8
30
600
8
10
300
1.8
Unit
mV
mV
pA
pA
nA
pA
pA
V
dB
V/mV
mV/∞C
V
V
mV
mV
mA
mA
mA
V/ms
MHz
nV/÷Hz
nV/÷Hz
pA/÷Hz
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Symbol
V
OS
I
B
I
OS
Condition
V
CM
= V
S
/2
–40∞C < T
A
< +125∞C
V
S
= 1.8 V
–40∞C < T
A
< +85∞C
–40∞C < T
A
< +125∞C
–40∞C < T
A
< +125∞C
Input Offset Current
1
0 V
£
V
CM
£
1.8 V
R
L
= 100 kW, 0.3 V
£
V
OUT
£
1.5 V
0
50
110
Input Voltage Range
Common-Mode Rejection Ratio CMRR
Large Signal Voltage Gain
A
VO
Offset Voltage Drift
DV
OS
/DT
OUTPUT CHARACTERISTICS
Output Voltage High
V
OH
Output Voltage Low
Short Circuit Limit
POWER SUPPLY
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
NOISE PERFORMANCE
Voltage Noise Density
Current Noise Density
V
OL
I
SC
I
SY
400
4
I
L
= 100
mA,
I
L
= 750
mA,
I
L
= 100
mA,
I
L
= 750
mA,
–40∞C < T
A
< +125∞C
–40∞C < T
A
< +125∞C
–40∞C < T
A
< +125∞C
–40∞C < T
A
< +125∞C
1.79
1.77
10
30
20
300
450
500
V
OUT
= V
S
/2
–40∞C < T
A
< +125∞C
R
L
= 10 kW
SR
GBP
e
n
i
n
2.7
5
22
20
0.05
f = 1 kHz
f = 10 kHz
f = 1 kHz
Specifications subject to change without notice.
–2–
REV. B
AD8515
ELECTRICAL CHARACTERISTICS
(V = 3.0 V, V
S
CM
= V
S
/2, T
A
= 25 C, unless otherwise noted.)
Min
Typ
1
2
Max
6
8
30
600
8
10
300
3
Unit
mV
mV
pA
pA
nA
pA
pA
V
dB
V/mV
mV/∞C
V
V
mV
mV
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Symbol
V
OS
I
B
I
OS
Condition
V
CM
=V
S
/2
–40∞C < T
A
< +125∞C
V
S
= 3.0 V
–40∞C < T
A
< +85∞C
–40∞C < T
A
< +125∞C
–40∞C < T
A
< +125∞C
Input Offset Current
1
0 V
£
V
CM
£
3.0 V
R
L
= 100 kW, 0.3 V
£
V
OUT
£
2.7 V
0
54
250
Input Voltage Range
Common-Mode Rejection Ratio CMRR
Large Signal Voltage Gain
A
VO
Offset Voltage Drift
DV
OS
/DT
OUTPUT CHARACTERISTICS
Output Voltage High
V
OH
Output Voltage Low
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
NOISE PERFORMANCE
Voltage Noise Density
Current Noise Density
V
OL
1,000
4
I
L
= 100
mA,
–40∞C < T
A
< +125∞C
I
L
= 750
mA,
–40∞C < T
A
< +125∞C
I
L
= 100
mA,
–40∞C < T
A
< +125∞C
I
L
= 750
mA,
–40∞C < T
A
< +125∞C
V
S
= 1.8 V to 5.0 V,
–40∞C < T
A
< +125∞C
V
OUT
= V
S
/2
–40∞C < T
A
< +125∞C
R
L
= 10 kW
2.99
2.98
10
20
PSRR
I
SY
65
85
300
450
500
dB
mA
mA
V/ms
MHz
nV/÷Hz
nV/÷Hz
pA/÷Hz
SR
GBP
e
n
i
n
2.7
5
22
20
0.05
f = 1 kHz
f = 10 kHz
f = 1 kHz
Specifications subject to change without notice.
REV. B
–3–
AD8515
ELECTRICAL CHARACTERISTICS
(V = 5.0 V, V
S
CM
= V
S
/2, T
A
= 25 C, unless otherwise noted.)
Min
Typ
1
5
Max
6
8
30
600
8
10
300
5.0
Unit
mV
mV
pA
pA
nA
pA
pA
V
dB
V/mV
mV/∞C
V
V
mV
mV
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Input Bias Current
Symbol
V
OS
I
B
I
OS
Condition
V
CM
=V
S
/2
–40∞C < T
A
< +125∞C
V
S
= 5.0 V
–40∞C < T
A
< +85∞C
–40∞C < T
A
< +125∞C
–40∞C < T
A
< +125∞C
Input Offset Current
1
0 V
£
V
CM
£
5.0 V
R
L
= 100 kW, 0.3 V
£
V
OUT
£
4.7 V
0
60
500
Input Voltage Range
Common-Mode Rejection Ratio CMRR
Large Signal Voltage Gain
A
VO
Offset Voltage Drift
DV
OS
/DT
OUTPUT CHARACTERISTICS
Output Voltage High
V
OH
Output Voltage Low
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
NOISE PERFORMANCE
Voltage Noise Density
Current Noise Density
V
OL
75
2,000
4
I
L
= 100
mA,
–40∞C < T
A
< +125∞C
I
L
= 750
mA,
–40∞C < T
A
< +125∞C
I
L
= 100
mA,
–40∞C < T
A
< +125∞C
I
L
= 750
mA,
–40∞C < T
A
< +125∞C
V
S
= 1.8 V to 5.0 V,
–40∞C < T
A
< +125∞C
V
OUT
= V
S
/2
–40∞C < T
A
< +125∞C
R
L
= 10 kW
4.99
4.98
10
20
PSRR
I
SY
65
82
350
500
600
dB
mA
mA
V/ms
MHz
nV/÷Hz
nV/÷Hz
pA/÷Hz
SR
GBP
e
n
i
n
2.7
5
22
20
0.05
f = 1 kHz
f = 10 kHz
f = 1 kHz
Specifications subject to change without notice.
–4–
REV. B
AD8515
ABSOLUTE MAXIMUM RATINGS*
(T
A
= 25∞C, unless otherwise noted.)
Package Type
5-Lead SOT-23 (RT)
5-Lead SC70 (KS)
JA
*
JC
Unit
∞C/W
∞C/W
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND to V
S
Differential Input Voltage . . . . . . . . . . . . . . . . . .
±
6 V or
±
V
S
Output Short-Circuit Duration
to GND . . . . . . . . . . . . . . . . . . . . Observe Derating Curves
Storage Temperature Range
KS and RT Packages . . . . . . . . . . . . . . . . –65∞C to +150∞C
Operating Temperature Range
AD8515 . . . . . . . . . . . . . . . . . . . . . . . . . . –40∞C to +125∞C
Junction Temperature Range
KS and RT Packages . . . . . . . . . . . . . . . . –65∞C to +150∞C
Lead Temperature Range (Soldering, 60 sec) . . . . . . . . 300∞C
*Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
230
376
146
126
*q
JA
is specified for worst-case conditions, i.e.,
q
JA
is specified for device sol-
dered in circuit board for surface-mount packages.
ORDERING GUIDE
Model
AD8515ART
AD8515AKS
Temperature Range
–40ºC to +125ºC
–40ºC to +125ºC
Package Description
5-Lead SOT-23
5-Lead SC70
Package Option
RT-5
KS-5
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
AD8515 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. B
–5–
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