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PDF AD8563 Data sheet ( Hoja de datos )
| Número de pieza | AD8563 | |
| Descripción | Auto Zero In-Amp | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Preliminary Technical Data
FEATURES
Low offset voltage: 25 μV max
Low input offset drift: 0.1 μV/°C max
High CMR: 120 dB min @ G = 100
Low noise: 0.7 μV p-p from 0.01 Hz to 10 Hz
Wide gain range: 1 to 10,000
Single-supply operation: +2.7 V to +5.5 V
Rail-to-rail output
Shutdown capability
−40°C to +125°C operation
APPLICATIONS
Strain gauge
Weigh scales
Pressure sensors
Laser diode control loops
Portable medical instruments
Thermocouple amplifiers
1.8 V to 5 V Auto-Zero,
In-Amp with Shutdown
AD8563
PIN CONFIGURATION
RGA 1
VINP 2
VCC 3
VO 4
VFB 5
AD8563
TOP VIEW
(Not to Scale)
10 RGB
9 VINN
8 GND
7 VREF
6 ENABLE
Figure 1. 10-Lead MSOP
GENERAL DESCRIPTION
The AD85631 is a precision instrumentation amplifier featuring
low noise, rail-to-rail output and a power-saving shutdown
mode. The AD8563 also features low offset voltage and drift
coupled with high common-mode rejection. In shutdown
mode, the total supply current is reduced to less than 4 μA.
The AD8563 is capable of operating from 2.7 V to 5.5 V.
With a low offset voltage of 30 μV, an offset voltage drift of
0.5 μV/°C, and a voltage noise of only 1 μV p-p (0.01 Hz to
10 Hz), the AD8563 is ideal for applications where error sources
cannot be tolerated. Precision instrumentation, position and
pressure sensors, medical instrumentation, and strain gauge
amplifiers benefit from the low noise, low input bias current,
and high common-mode rejection. The small footprint and low
cost are ideal for high volume applications.
The small package and low power consumption allow
maximum channel density and minimum board size for
space-critical equipment and portable systems.
The AD8563 is specified over the industrial temperature range
from −40°C to +125°C. The AD8563 is available in a Pb-free,
10-lead MSOP.
1 Patent pending.
Rev. PrA
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
© 2006 Analog Devices, Inc. All rights reserved.
1 page  
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Preliminary Technical Data
ABSOLUTE MAXIMUM RATINGS
AD8563
Table 3.
Parameter
Supply Voltage
Input Voltage
Differential Input Voltage1
Output Short-Circuit Duration to GND
Storage Temperature Range (RM Package)
Operating Temperature Range
Junction Temperature Range (RM Package)
Lead Temperature Range (Soldering, 10 sec)
Ratings
6V
+VSUPPLY
±VSUPPLY
Indefinite
−65°C to +150°C
−40°C to +125°C
−65°C to +150°C
300°C
1 Differential input voltage is limited to ±5.0 V, the supply voltage, or
whichever is less.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θ JA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 4.
Package Type
θJA1
θJC
Unit
10-Lead MSOP (RM)
110 32.2 °C/W
1 θJA is specified for the nominal conditions, that is, θJA is specified for the
device soldered on a circuit board.
ESD 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 this product 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.
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Rev. PrA | Page 5 of 15
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Preliminary Technical Data
VS+
VIN
2
1
+
3
6
7
R1 AADD88556533
10
9_
8
VS–
5
4 NC (NO CONNECT)
10kΩ
0.1µF
IO
=
VIN
R1
A
AMMETER
Figure 7. Voltage-to-Current Converter, 0 μA to 30 μA Source
VS+
2
1
+
3
R1 AADD88556533
10
9_
8
6
7
5
4
VREF = 2.5V
100Ω
C2
R2
A/AD/D
CONVERTER
1µF
Figure 8. Example of an AD8563 Driving a Converter at VS+ = 5 V
AD8563
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Rev. PrA | Page 11 of 15
11 Page | ||
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| PDF Descargar | [ Datasheet AD8563.PDF ] | |
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