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AD8527 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer AD8527
Beschreibung 7 MHz Rail-to-Rail Low Voltage Operational Amplifiers
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 12 Seiten
AD8527 Datasheet, Funktion
a
7 MHz Rail-to-Rail
Low Voltage Operational Amplifiers
AD8517/AD8527
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.
PIN CONFIGURATIONS
5-Lead SOT-23
(RT Suffix)
AD8517
OUT A 1
5 V+
V– 2
+IN A 3
4 –IN A
8-Lead SOIC
(R Suffix)
OUT A 1
IN A 2
+IN A 3
V4
AD8527
8 V+
7 OUT B
6 IN B
5 +IN B
8-Lead MSOP
(RM Suffix)
OUT A
IN A
+IN A
V
18
AD8527
45
V+
OUT B
IN B
+IN B
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
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






AD8527 Datasheet, Funktion
AD8517/AD8527Typical Characteristics
1,200
1,100
VS = 5V
1,000
900
800
700
600
؊50 ؊25 0 25 50 75 100 125 150
TEMPERATURE ؇C
Figure 3. Supply Current per Amplifier vs. Temperature
600
VS = ؎2.5V
TA = 25؇C
400
200
0
؊200
؊400
؊600
؊3
؊2 ؊1
0
1
COMMON-MODE VOLTAGE V
2
3
Figure 4. Input Bias Current vs. Common-Mode Voltage
140
TA = 25؇C
120
100
SINK؊
80
60
SOURCE+
40
20
0
10 100
1k 10k
LOAD CURRENT A
Figure 5. Output Voltage to Supply Rail vs. Load Current
60
50
40
30 GAIN
VS = 5V
TA = 25؇C
20 90
PHASE
10 45
00
؊10
؊45
؊20
؊90
؊30
؊40
100k
1M 10M
FREQUENCY Hz
100M
Figure 6. Open-Loop Gain vs. Frequency
60
VS = 5V
TA = 25؇C
CL Յ 10pF
40
20
0
؊20
؊40
10
100 1k 10k 100k 1M 10M 100M
FREQUENCY Hz
Figure 7. Closed-Loop Gain vs. Frequency
0
VS = ؎2.5V
TA = 25؇C
20
40
60
80
100
10
100 1k 10k 100k 1M
FREQUENCY Hz
Figure 8. CMRR vs. Frequency
10M
–6– REV. B

6 Page









AD8527 pdf, datenblatt
AD8517/AD8527
SPICE Model
The SPICE model for the AD8517 amplifier is available and
can be downloaded from the Analog Devices’ web site at
http://www.analog.com. The macro-model accurately simulates
a number of AD8517 parameters, including offset voltage, input
common-mode range, and rail-to-rail output swing. The output
voltage versus output current characteristics of the macro-model is
identical to the actual AD8517 performance, which is a critical
feature with a rail-to-rail amplifier model. The model also accu-
rately simulates many ac effects, such as gain-bandwidth product,
phase margin, input voltage noise, CMRR and PSRR versus
frequency, and transient response. Its high degree of model
accuracy makes the AD8517 macro-model one of the most
reliable and true-to-life models available for any amplifier.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
8-Lead Narrow Body SOIC
(SO-8)
0.1968 (5.00)
0.1890 (4.80)
8
0.1574 (4.00)
0.1497 (3.80) 1
5
0.2440 (6.20)
4 0.2284 (5.80)
PIN 1
0.0098 (0.25)
0.0040 (0.10)
0.0688 (1.75)
0.0532 (1.35)
0.0196 (0.50)
0.0099 (0.25)؋ 45؇
8؇
SEATING
PLANE
0.0500 0.0192 (0.49)
(1.27) 0.0138 (0.35)
BSC
0.0098 (0.25)
0.0075 (0.19)
0؇
0.0500 (1.27)
0.0160 (0.41)
8-Lead MSOP
(RM-8)
0.122 (3.10)
0.114 (2.90)
8
0.122 (3.10)
0.114 (2.90)
1
5
0.199 (5.05)
0.187 (4.75)
4
PIN 1
0.0256 (0.65) BSC
0.120 (3.05)
0.120 (3.05)
0.112 (2.84)
0.112 (2.84)
0.006 (0.15)
0.002 (0.05)
SEATING
PLANE
0.043 (1.09)
0.037 (0.94)
0.018 (0.46)
0.008 (0.20)
0.011 (0.28)
0.003 (0.08)
33؇
27؇
0.028 (0.71)
0.016 (0.41)
5-Lead SOT-23
(RT-5)
0.1181 (3.00)
0.1102 (2.80)
0.0669 (1.70)
0.0590 (1.50)
5 4 0.1181 (3.00)
0.1024 (2.60)
123
PIN 1
0.0512 (1.30)
0.0354 (0.90)
0.0374 (0.95) BSC
0.0748 (1.90)
BSC
0.0571 (1.45)
0.0374 (0.95)
0.0059 (0.15)
0.0019 (0.05)
0.0197 (0.50) SEATING
0.0138 (0.35) PLANE
0.0079 (0.20)
0.0031 (0.08)
10؇
0؇ 0.0217 (0.55)
0.0138 (0.35)
–12–
REV. B

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