Analog Devices AD8517, AD8527 Datasheet
7 MHz Rail-to-Rail
OUT A
–IN A
+IN A
OUT B
–IN B
+IN B
18
27
36
45
V+
V–
AD8527
–IN A
+IN A
V–
OUT B
–IN B
+IN B
1
45
8
AD8527
OUT A V+
a
Low Voltage Operational Amplifiers
FEATURES
Single Supply Operation: 1.8 V to 6 V
Space-Saving SOT-23, SOIC Packaging
Wide Bandwidth: 7 MHz @ 5 V
Low Offset Voltage: 3.5 mV Max
Rail-to-Rail Output Swing and Rail-to-Rail Input
8 V/s Slew Rate
Only 900 A Supply Current @ 5 V
APPLICATIONS
Portable Communications
Portable Phones
Sensor Interface
Active Filters
PCMCIA Cards
ASIC Input Drivers
Wearable Computers
Battery-Powered Devices
New Generation Phones
Personal Digital Assistants
GENERAL DESCRIPTION
The AD8517 brings precision and bandwidth to the SOT-23-5
package even at single supply voltages as low as 1.8 V. The
small package makes it possible to place the AD8517 next to
sensors, reducing external noise pickup. The AD8527 dual
amplifier is offered in the space-saving MSOP package.
The AD8517 and AD8527 are rail-to-rail input and output
bipolar amplifiers with a gain bandwidth of 7 MHz and typical
voltage offset of 1.3 mV from a 1.8 V supply. The low supply
current makes these parts ideal for battery-powered applications.
The 8 V/µs slew rate makes the AD8517/AD8527 a good match
for driving ASIC inputs, such as voice codecs.
The AD8517/AD8527 is specified over the extended industrial
(–40°C to +125°C) temperature range. The AD8517 single is
available in 5-lead SOT-23 surface-mount packages. The dual
AD8527 is available in 8-lead SOIC and MSOP packages.
AD8517/AD8527
PIN CONFIGURATIONS
5-Lead SOT-23
(RT Suffix)
OUT A
+IN A
AD8517
1
2
V–
3
8-Lead SOIC
(R Suffix)
8-Lead MSOP
(RM Suffix)
V+
5
–IN A
4
REV. B
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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, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2000
AD8517/AD8527–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(VS = 5.0 V, V– = 0 V, VCM = 2.5 V, TA = 25ⴗC unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage
AD8517ART (SOT-23-5) V
OS
–40°C ≤ T
AD8527 V
OS
–40°C ≤ T
Input Bias Current I
B
–40°C ≤ T
Input Offset Current I
OS
–40°C ≤ T
Input Voltage Range V
CM
Common-Mode Rejection Ratio CMRR 0 V ≤ V
–40°C ≤ T
Large Signal Voltage Gain A
Offset Voltage Drift ∆V
VO
/∆T2µV/°C
OS
RL = 2 kΩ, 0.5 V < V
R
= 10 kΩ, 0.5 V < V
L
= 10 kΩ, –40°C ≤ TA ≤ +125°C 30 V/mV
R
L
≤ +125°C5mV
A
≤ +125°C5mV
A
≤ +125°C 900 nA
A
≤ +125°C ±750 nA
A
05V
≤ 5.0 V,
CM
≤ +125°C6070dB
A
< 4.5 V 20 V/mV
OUT
< 4.5 V 50 100 V/mV
OUT
1.3 3.5 mV
1.3 3.5 mV
450 nA
±225 nA
Bias Current Drift ∆IB/∆T 500 pA/°C
OUTPUT CHARACTERISTICS
Output Voltage Swing High V
Output Voltage Swing Low V
Short Circuit Current I
OH
OL
SC
IL = 250 µA,
–40°C ≤ T
I
= 5 mA 4.70 V
L
≤ +125°C 4.965 V
A
IL = 250 µA,
–40°C ≤ T
I
= 5 mA 200 mV
L
≤ +125°C35mV
A
Short to Ground, Instantaneous ±10 mA
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
Supply Current/Amplifier I
SY
= 2.2 V to 6 V 90 dB
S
–40°C ≤ T
V
OUT
≤ +125°C65dB
A
= 2.5 V 900 1,200 µA
–40°C ≤ TA ≤ +125°C 1,400 µA
DYNAMIC PERFORMANCE
Slew Rate SR 1 V < V
< 4 V, RL = 10 kΩ 8V/µs
OUT
Gain Bandwidth Product GBP 7 MHz
Settling Time T
Phase Margin φ
S
m
4 V Step, 0.1% 400 ns
50 Degrees
NOISE PERFORMANCE
Voltage Noise en p-p 0.1 Hz to 10 Hz 0.5 µV p-p
Voltage Noise Density e
Current Noise Density i
Specifications subject to change without notice.
n
n
f = 1 kHz 15 nV/√Hz
f = 1 kHz 1.2 pA/√Hz
–2–
REV. B
AD8517/AD8527
ELECTRICAL CHARACTERISTICS
(VS = 2.2 V, V– = 0 V, VCM = 1.1 V, TA = 25ⴗC unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage
AD8517ART (SOT-23-5) V
OS
–40°C ≤ T
AD8527 V
OS
–40°C ≤ T
Input Bias Current I
Input Offset Current I
Input Voltage Range V
B
OS
CM
Common-Mode Rejection Ratio CMRR 0 V ≤ V
–40°C ≤ T
Large Signal Voltage Gain A
VO
RL = 2 kΩ, 0.5 V < V
≤ +125°C5mV
A
≤ +125°C5mV
A
0 2.2 V
≤ 2.2 V,
CM
≤ +125°C5570dB
A
< 1.7 V 20 V/mV
OUT
1.3 3.5 mV
1.3 3.5 mV
450 nA
±225 nA
RL = 10 kΩ 20 50 V/mV
OUTPUT CHARACTERISTICS
Output Voltage Swing High V
Output Voltage Swing Low V
OH
OL
IL = 250 µA 2.165 V
I
= 2.5 mA 1.9 V
L
IL = 250 µA35mV
IL = 2.5 mA 200 mV
POWER SUPPLY
Supply Current/Amplifier I
SY
V
= 1.1 V 750 1,100 µA
OUT
–40°C ≤ TA ≤ +125°C 1,300 µA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 10 kΩ 8V/µs
Gain Bandwidth Product GBP 7 MHz
Phase Margin φ
m
50 Degrees
NOISE PERFORMANCE
Voltage Noise Density e
Current Noise Density i
Specifications subject to change without notice.
n
n
f = 1 kHz 15 nV/√Hz
f = 1 kHz 1.2 pA/√Hz
–3–REV. B
AD8517/AD8527–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(VS = 1.8 V, V– = 0 V, VCM = 0.9 V, TA = 25ⴗC unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage
AD8517ART (SOT-23-5) V
OS
0°C ≤ T
AD8527 V
OS
0°C ≤ T
Input Bias Current I
Input Offset Current I
Input Voltage Range V
B
OS
CM
Common-Mode Rejection Ratio CMRR 0 V ≤ V
0°C ≤ T
Large Signal Voltage Gain A
VO
RL = 2 kΩ, 0.5 V < V
≤ 125°C5mV
A
≤ 125°C5mV
A
0 1.8 V
≤ 1.8 V,
CM
≤ 125°C5070dB
A
< 1.3 V 20 V/mV
OUT
1.3 3.5 mV
1.3 3.5 mV
450 nA
±225 nA
RL = 10 kΩ 20 50 V/mV
OUTPUT CHARACTERISTICS
Output Voltage Swing High V
Output Voltage Swing Low V
OH
OL
IL = 250 µA 1.765 V
I
= 2.5 mA 1.5 V
L
IL = 250 µA35mV
IL = 2.5 mA 200 mV
POWER SUPPLY
Power Supply Rejection Ratio PSRR VS = 1.7 V to 2.2 V,
Supply Current/Amplifier I
SY
0°C ≤ T
V
OUT
≤ 125°C5065dB
A
= 0.9 V 650 1,100 µA
0°C ≤ TA ≤ 125°C 1,300 µA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 10 kΩ 7V/µs
Gain Bandwidth Product GBP 7 MHz
Phase Margin φ
m
50 Degrees
NOISE PERFORMANCE
Voltage Noise Density e
Current Noise Density i
Specifications subject to change without notice.
n
n
f = 1 kHz 15 nV/√Hz
f = 1 kHz 1.2 pA/√Hz
–4–
REV. B
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