AD AD8563ARMZ-R2

1.8 V to 5 V Auto-Zero,
In-Amp with Shutdown
AD8563
Preliminary Technical Data
FEATURES
PIN CONFIGURATION
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
RGA 1
10
RGB
VINP 2
AD8563
9
VINN
VCC 3
TOP VIEW
8
GND
(Not to Scale)
7
VREF
6
ENABLE
VO 4
VFB 5
Figure 1. 10-Lead MSOP
APPLICATIONS
Strain gauge
Weigh scales
Pressure sensors
Laser diode control loops
Portable medical instruments
Thermocouple amplifiers
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.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
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Fax: 781.461.3113
© 2006 Analog Devices, Inc. All rights reserved.
AD8563
Preliminary Technical Data
TABLE OF CONTENTS
Features .............................................................................................. 1
Gain Selection (Gain-Setting Resistors).....................................7
Applications....................................................................................... 1
Reference Connection ..................................................................7
Pin Configuration............................................................................. 1
Disable Function ...........................................................................7
General Description ......................................................................... 1
Output Filtering.............................................................................7
Revision History ............................................................................... 2
Clock Feedthrough........................................................................7
Specifications..................................................................................... 3
Low Impedance Output................................................................7
Electrical Characteristics............................................................. 3
Maximizing Performance Through Proper Layout ..................8
Absolute Maximum Ratings............................................................ 5
Power Supply Bypassing ...............................................................8
Thermal Resistance ...................................................................... 5
Input Overvoltage Protection ......................................................8
ESD Caution.................................................................................. 5
Capacitive Load Drive ..................................................................8
Typical Performance Characteristics ........ Error! Bookmark not
defined.
Circuit Diagrams/Connections ...................................................9
Theory of Operation ........................................................................ 6
Outline Dimensions ....................................................................... 13
Ordering Guide............................................................................... 13
High PSR and CMR ..................................................................... 6
1/f Noise Correction .................................................................... 6
Applications....................................................................................... 7
REVISION HISTORY
06/06—Revision PrA: Initial Version
Rev. PrA | Page 2 of 15
Preliminary Technical Data
AD8563
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
VCC = 5.0 V, VCM = 2.5 V, VREF = VCC/2, VIN = VINP − VINN, RLOAD = 10 kΩ, TA = 25°C, G = 100, unless specified. See Table 5 for gain setting
resistor values. Temperature specifications guaranteed by characterization.
Table 1.
Parameter
INPUT CHARACTERISTICS
Input Offset Voltage
vs. Temperature
Symbol
Conditions
VOS
G = 1000
G = 100
G = 10
G=1
G = 1000, −40°C ≤ TA ≤ +125°C
ΔVOS/
ΔT
Min
G = 100, −40°C ≤ TA ≤ +125°C
G = 10, −40°C ≤ TA ≤ +125°C
G = 1, −40°C ≤ TA ≤ +125°C
Input Bias Current
IB
Input Offset Current
VREF Pin Current
Input Operating Impedance
Differential
Common Mode
Input Voltage Range
Common-Mode Rejection
IOS
IREF
Typ
Max
Unit
0.01
25
25
50
350
0.1
μV
μV
μV
μV
μV/°C
0.1
0.3
3
1
2
2
1
μV/°C
μV/°C
μV/°C
nA
nA
nA
nA
0.01
0.1
0.7
0.3
−40°C ≤ TA ≤ +125°C
75||2
100||2
CMR
Gain Error
Gain Drift
Nonlinearity
VREF Range
OUTPUT CHARACTERISITICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
POWER SUPPLY
Power Supply Rejection
Supply Current
Supply Current Shutdown Mode
ENABLE INPUTS
Logic High Voltage
Logic Low Voltage
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Internal Clock Frequency
Signal Bandwidth1
1
0.02
G = 100, VCM = 0 V to 2.85 V
G = 100, VCM = 0 V to 2.85 V, −40°C ≤ TA ≤ +125°C
G = 10, VCM = 0 V to 2.85 V, −40°C ≤ TA ≤ +125°C
G = 100, VCM = 12.125 mV, VO = 0.075 V to 4.925 V
G = 10, VCM = 121.25 mV , VO = 0.075 V to 4.925 V
G = 1, 10, 100, 1000, −40°C ≤ TA ≤ +125°C
G = 100, VCM = 12.125 mV, VO = 0.075 V to 4.925 V
G = 10, VCM = 121.25 mV, VO = 0.075 V to 4.925 V
0
120
105
100
3.0
140
140
120
0.25
0.5
50
0.006
0.035
4.1
0.9
VOH
VOL
ISC
PSR
ISY
4.925
0.075
±35
G = 100, VS = 2.7 V to 5.5 V, VCM = 0 V
G = 10, VS = 2.7 V to 5.5 V, VCM = 0 V
IO = 0 mA, VIN = 0 V
−40°C ≤ TA ≤ +125°C
100
90
ISD
120
106
1.1
2
f = 0.01 Hz to 10 Hz
G = 100, f = 1 kHz
G = 10, f = 1 kHz
G = 1 to 1000
Higher bandwidths result in higher noise.
Rev. PrA | Page 3 of 15
0.7
35
150
40
1
dB
%
%
ppm/°C
% FS
% FS
V
V
V
mA
1.3
1.5
4
dB
dB
mA
mA
μA
0.80
V
V
2.40
en p-p
en
MΩ||pF
MΩ||pF
V
dB
μV p-p
nV/√Hz
nV/√Hz
kHz
kHz
AD8563
Preliminary Technical Data
VS = 2.7 V, VCM = -0 V, VREF = VS/2, VIN = VINP − VINN, RLOAD = 10 kΩ, TA = 25°C, G = 100, unless specified. See Table 5 for gain setting
resistor values. Temperature specifications guaranteed by characterization.
Table 2.
Parameter
INPUT CHARACTERISTICS
Input Offset Voltage
Vs. Temperature
Symbol
Conditions
VOS
G = 1000
G = 100
G = 10
G=1
G = 1000, −40°C ≤ TA ≤ +125°C
ΔVOS/
ΔT
Min
G = 100, −40°C ≤ TA ≤ +125°C
G = 10, −40°C ≤ TA ≤ +125°C
G = 1, −40°C ≤ TA ≤ +125°C
Input Bias Current
Typ
Max
Unit
0.1
30
30
60
500
0.5
μV
μV
μV
μV
μV/°C
0.5
3
10
1
2
2
1
μV/°C
μV/°C
μV/°C
nA
nA
nA
nA
0.1
IB
0.3
−40°C ≤ TA ≤ +125°C
Input Offset Current
VREF Pin Current
Input Operating Impedance
Differential
Common Mode
Input Voltage Range
Common-Mode Rejection
IOS
IREF
75||2
100||2
CMR
Gain Error
Gain Drift
Nonlinearity
VREF Range
OUTPUT CHARACTERISITICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
POWER SUPPLY
Power Supply Rejection
Supply Current
Supply Current Shutdown Mode
ENABLE INPUTS
Logic High Voltage
Logic Low Voltage
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Internal Clock Frequency
Signal Bandwidth1
0.02
G = 100, VCM = 0 V to 0.7 V
G = 100, VCM = 0 V to 0.7 V, −40°C ≤ TA ≤ +125°C
G = 10, VCM = 0 V to 0.7 V
G = 100, VCM =4.125 mV, VO = 0.075 V to 2.625 V
G = 10, VCM = 41.25 mV, VO = 0.075 V to 2.625 V
G = 1, 10, 100, 1000, −40°C ≤ TA ≤ +125°C
G = 100, VCM = 4.125 mV, VO = 0.075 V to 2.625 V
G = 10, VCM = 41.25 mV, VO = 0.075 V to 2.625 V
0
100
86
86
0.7
110
95
0.2
0.2
0.015
0.015
0.9
VOH
VOL
ISC
PSR
ISY
0.35
0.5
50
1.8
2.625
0.075
±5
G = 100, VS = 2.7 V to 5.5 V, VCM = 0 V
IO = 0 mA, VIN = 0 V
−40°C ≤ TA ≤ +125°C
100
ISD
120
0.9
2
f = 0.01 Hz to 10 Hz
G = 100, f = 1 kHz
G = 10, f = 1 kHz
G = 1 to 1000
1
Higher bandwidths result in higher noise.
Rev. PrA | Page 4 of 15
1
45
180
40
1
dB
%
%
ppm/°C
% FS
% FS
V
V
V
mA
1.2
1.4
4
dB
mA
mA
μA
0.5
V
V
1.4
en p-p
en
MΩ||pF
MΩ||pF
V
dB
μV p-p
nV/√Hz
nV/√Hz
kHz
kHz
Preliminary Technical Data
AD8563
ABSOLUTE MAXIMUM RATINGS
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)
1
Ratings
6V
+VSUPPLY
±VSUPPLY
Indefinite
−65°C to +150°C
−40°C to +125°C
−65°C to +150°C
300°C
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.
Rev. PrA | Page 5 of 15
AD8563
Preliminary Technical Data
THEORY OF OPERATION
The AD8563 is a precision current-mode correction
instrumentation amplifier capable of single-supply operation.
The current-mode correction topology results in excellent
accuracy, without the need for trimmed resistors on the die.
Figure 2 shows a simplified diagram illustrating the basic
operation of the AD8563 (without correction). The circuit
consists of a voltage-to-current amplifier (M1 to M6), followed
by a current-to-voltage amplifier (R2 and A1). Application of a
differential input voltage forces a current through External
Resistor R1, resulting in conversion of the input voltage to a
signal current. Transistor M3 to Transistor M6 transfer twice
this signal current to the inverting input of the op amp A1.
Amplifier A1 and External Resistor R2 form a current-tovoltage converter to produce a rail-to-rail output voltage at
VOUT.
Op amp A1 is a high precision, auto-zero amplifier. This
amplifier preserves the performance of the autocorrecting,
current-mode amplifier topology while offering the user a true
voltage-in, voltage-out instrumentation amplifier. Offset errors
are corrected internally.
An external reference voltage is applied to the non-inverting
input of A1 to set the output reference level. External Capacitor
C2 filters out correction noise.
The pin out of the AD8563 allows the user to access the signal
current from the output of the voltage-to-current converter
(Pin 5). The user can choose to use the AD8563 as a currentoutput device instead of a voltage-output device. See Figure 7
for circuit connections.
HIGH PSR AND CMR
Common-mode rejection and power supply rejection indicate
the amount that the offset voltage of an amplifier changes when
its common-mode input voltage or power supply voltage changes.
The auto-correction architecture of the AD8563 continuously
corrects for offset errors, including those induced by changes in
input or supply voltage, resulting in exceptional rejection
performance. The continuous auto-correction provides great
CMR and PSR performances over the entire operating
temperature range (−40°C to +125°C).
The parasitic resistance in series with R2 does not degrade
CMR but causes a small gain error and a very small offset error.
Therefore, an external buffer amplifier is not required to drive
the VREF pin to maintain excellent CMR performance. This
helps reduce system costs over conventional instrumentation
amplifiers.
1/f NOISE CORRECTION
Flicker noise, also known as 1/f noise, is noise inherent in the
physics of semiconductor devices and decreases 10 dB per
decade. The 1/f corner frequency of an amplifier is the frequency
at which the flicker noise is equal to the broadband noise of the
amplifier. At lower frequencies, flicker noise dominates causing
large errors in low frequency or dc applications.
Flicker noise is effectively visible as a slowly varying offset error,
which the auto-correction topology of the AD8563 reduces. This
allows the AD8563 to have lower noise near dc than standard
low noise instrumentation amplifiers.
Rev. PrA | Page 6 of 15
Preliminary Technical Data
AD8563
APPLICATIONS
GAIN SELECTION (GAIN-SETTING RESISTORS)
DISABLE FUNCTION
The gain of the AD8563 is set according to
The AD8563 provides a shutdown function to conserve power
when the device is not needed. Although there is a 1 μA pull-up
current on the ENABLE pin, Pin 6 should be connected to the
positive supply for normal operation and to the negative supply
to turn the device off. It is not recommended to leave Pin 6
floating.
G = 2 × (R2/R1)
(1)
Table 5 lists the recommended resistor values. Resistor R1 must
be at least 3.92 kΩ for proper operation. The use of resistors
larger than the recommended values results in higher offset and
higher noise.
Gain accuracy depends on the matching of R1 and R2. Any
mismatch in resistor values results in a gain error. Resistor
value errors due to drift will affect gain by the amount indicated
by Equation 1. However, due to the current-mode operation of
the AD8563, a mismatch in R1 and R2 does not degrade the
CMR.
Take care when selecting and positioning the gain setting
resistors. The resistors should be made of the same material and
package style. Surface-mount resistors are recommended. They
should be positioned as close together
as possible to minimize TC errors.
To maintain good CMR vs. frequency, the parasitic capacitance
on the R1 gain setting pins should be minimized and matched.
This also helps maintain a low gain error at G < 10.
If resistor trimming is required to set a precise gain, trim
Resistor R2 only. Using a potentiometer for R1 degrades the
amplifier’s performance.
REFERENCE CONNECTION
Unlike traditional three op amp instrumentation amplifiers,
parasitic resistance in series with VREF (Pin 7) does not degrade
CMR performance. This allows the AD8563 to attain its extremely
high CMR performance without the use of an external buffer
amplifier to drive the VREF pin, which is required by industrystandard instrumentation amplifiers. This helps save valuable
printed circuit board space and minimizes system costs.
Turn-on time upon switching Pin 6 high is dominated by the
output filters. When the device is disabled, the output becomes
high impedance, enabling a multiplexing application of multiple
AD8563 instrumentation amplifiers.
OUTPUT FILTERING
Filter Capacitor C2 is required to limit the amount of switching
noise present at the output. The recommended bandwidth of
the filter created by C2 and R2 is 1.4 kHz. The user should first
select R1 and R2 based on the desired gain, then select C2 based on
C2 = 1/(1400 × 2 × π × R2)
(2)
Addition of another single-pole RC filter of 1.4 kHz on the
output (R3 and C3 in Figure 3 to Figure 5) is required for
bandwidths greater than 10 Hz. These two filters produce an
overall bandwidth of 1 kHz.
When driving an ADC, the recommended values for the second
filter are R3 = 100 Ω and C3 = 1 μF. This filter is required to
achieve the specified performance. It also acts as an antialiasing filter for the ADC. If a sampling ADC is not being
driven, the value of the capacitor can be reduced, but the filter
frequency should remain unchanged.
For applications with low bandwidths (<10 Hz), only the first
filter is required. In this case, the high frequency noise from the
auto-zero amplifier (output amplifier) is not filtered before the
following stage.
CLOCK FEEDTHROUGH
For optimal performance in single-supply applications, VREF
should be set with a low noise precision voltage reference.
However, for a lower system cost, the reference voltage can be
set with a simple resistor voltage divider between the supply and
ground (see Figure 3). This configuration results in degraded
output offset performance if the resistors deviate from their
ideal values. In dual-supply applications, VREF can be connected
to ground.
The AD8563 uses two synchronized clocks to perform the autocorrection. The input voltage-to-current amplifiers are
corrected at 60 kHz.
The VREF pin current is approximately 20 pA, and as a result, an
external buffer is not required.
LOW IMPEDANCE OUTPUT
Trace amounts of these clock frequencies can be observed at the
output. The amount of feedthrough is dependent upon the gain,
because the auto-correction noise has an input and output
referred term. The correction feedthrough is also dependent
upon the values of the external filters R2/C2, and R3/C3.
For applications where a low output impedance is required, the
circuit in Figure 5 should be used. This provides the same
filtering performance as shown in the configuration in Figure 6.
Rev. PrA | Page 7 of 15
AD8563
Preliminary Technical Data
MAXIMIZING PERFORMANCE THROUGH PROPER
LAYOUT
For single-supply operation, a 0.1 μF surface-mount capacitor
should be connected from the supply line to ground.
To achieve the maximum performance of the AD8563, care
should be taken in the circuit board layout. The PC board
surface must remain clean and free of moisture to avoid leakage
currents between adjacent traces. Surface coating of the circuit
board reduces surface moisture and provides a humidity barrier,
reducing parasitic resistance on the board.
All bypass capacitors should be positioned as close to the DUT
supply pins as possible, especially the bypass capacitor between
the supplies. Placement of the bypass capacitor on the back of
the board directly under the DUT is preferred.
INPUT OVERVOLTAGE PROTECTION
All terminals of the AD8563 are protected against ESD. In the
case of a dc overload voltage beyond either supply, a large
current would flow directly through the ESD protection diodes.
If such a condition should occur, an external resistor should be
used in series with the inputs to limit current for voltages
beyond the supply rails. The AD8563 can safely handle 5 mA of
continuous current, resulting in an external resistor selection of
REXT = (VIN − VS)/5 mA.
Care must be taken to minimize parasitic capacitance on Pin 1
and Pin 10 (Resistor R1 connections). Traces from Pin 1 and
Pin 10 to R1 should be kept short and symmetric. Excessive
capacitance on these pins will result in a gain error. This effect
is most prominent at low gains (G < 10).
For high impedance sources, the PC board traces from the
AD8563 inputs should be kept to a minimum to reduce input
bias current errors.
CAPACITIVE LOAD DRIVE
POWER SUPPLY BYPASSING
The output buffer, Pin 4, can drive capacitive loads up to 100 pF.
The AD8563 uses internally generated clock signals to perform
the auto-correction. As a result, proper bypassing is necessary
to achieve optimum performance. Inadequate or improper
bypassing of the supply lines can lead to excessive noise and
offset voltage.
A 0.1 μF surface-mount capacitor should be connected between
the supply lines. This capacitor is necessary to minimize ripple
from the correction clocks inside the IC. For dual-supply
operation (see Figure 5), a 0.1 μF (ceramic) surface-mount
capacitor should be connected from each supply pin to ground.
VCC
C2
I
I
M5
M6
R1
I – IR1
IR1 =
I + IR1
(VINP – VINN )
R1
M1
2I
2IR1
VOUT = VREF
M2
M4
2R2
R2
VINP – VINN
A1
VBIAS
VINN M3
+
VREF
2I
05474-030
VINP
R2
I – IR1
EXTERNAL
Figure 2. Simplified AD8563 Schematic
Rev. PrA | Page 8 of 15
Preliminary Technical Data
AD8563
CIRCUIT DIAGRAMS/CONNECTIONS
VS+
0.1µF
GND
2
VIN+
+
3
6
1
R1
4
AD8553
AD8563
10
VIN–
9
R3
100Ω
C3
1µF
5
–
7
8
VOUT
R2
GND
C2
R3 AND C3 VALUES ARE
RECOMMENDED TO DRIVE
AN A/D CONVERTER
GND
100kΩ
05474-032
0.1µF
VS+ 100kΩ
GND
Figure 3. Single-Supply Connection Diagram Using Voltage Divider Reference
VS+
0.1µF
0.1µF
2
VIN+
+
3
6
1
R1
AD8563
AD8553
10
VIN–
4
9
R3
100Ω
C3
1µF
5
–
7
8
0.1µF
GND
R2
C2
R3 AND C3 VALUES ARE
RECOMMENDED TO DRIVE
AN A/D CONVERTER
VS–
GND
Figure 4. Dual-Supply Connection Diagram
Rev. PrA | Page 9 of 15
VOUT
05474-031
GND
VS–
AD8563
Preliminary Technical Data
VS+
0.1µF
0.1µF
VS–
2
VIN+
3
+
6
1
4
AD8553
AD8563
R1
10
VIN–
9
5
R2
8
GND
0.1µF
VOUT
C3
1µF
C2
7
–
R3
100Ω
GND
R3 AND C3 VALUES ARE
RECOMMENDED TO DRIVE
AN A/D CONVERTER
VS–
GND
05474-034
GND
Figure 5. Dual-Supply Connection Diagram with Low Impedance Output
VS+
0.1µF
GND
2
VIN+
3
+
6
1
R1
4
AD8553
AD8563
10
VIN–
9
C3
1µF
5
7
–
8
R3
100Ω
R2
C2
VOUT
GND
R3 AND C3 VALUES ARE
RECOMMENDED TO DRIVE
AN A/D CONVERTER
VS–
1.0µF
VCC
0.1µF
VOUT
GND
Figure 6. Dual-Supply Connection Diagram Using IC Voltage Reference
Rev. PrA | Page 10 of 15
05474-035
VIN
Preliminary Technical Data
AD8563
VS+
6
3
+
7
4
AD8553
AD8563
R1
NC (NO CONNECT)
5
10
9 _
V
IO = IN
R1
10kΩ
A
8
0.1µF
VS–
AMMETER
05474-037
2
1
VIN
Figure 7. Voltage-to-Current Converter, 0 μA to 30 μA Source
VS+
2
+
1
6
3
VREF = 2.5V
7
R1
100Ω
4
AD8553
AD8563
C2
A/D
A/D
CONVERTER
1µF
8
R2
Figure 8. Example of an AD8563 Driving a Converter at VS+ = 5 V
Rev. PrA | Page 11 of 15
05474-038
5
10
9 _
AD8563
Preliminary Technical Data
VS+
LOGIC
2
+
1
6
3
VREF
7
AD8553
AD8563
R1
R3
4
C2
100Ω
5
10
9 _
8
R2
VS–
VS+
2
+
1
6
3
VREF
7
AD8563
AD8553
R6
R8
4
C3
100Ω
VOUT
1µF
5
10
9 _
8
R7
VS+
6
3
VREF
7
R11
R13
4
AD8553
AD8563
C4
5
10
9 _
8
R12
100Ω
05474-039
2
+
1
Figure 9. Multiplexed Output
Table 5. Recommended External Component Values for Selected Gains
Desired Gain (V/V)
1
2
5
10
50
100
500
1000
R1 (Ω)
200 k
100 k
40.2 k
20 k
4.02 k
3.92 k
3.92 k
3.92 k
R2 || C2 (Ω || F)
100 k || 1200p
100 k || 1200p
100 k || 1200p
100 k || 1200p
100 k || 1200p
196 k || 560p
976 k || 120p
1.96 M || 56p
Rev. PrA | Page 12 of 15
Calculated Gain
1
2
4.975
10
49.75
100
497.95
1000
Preliminary Technical Data
AD8563
OUTLINE DIMENSIONS
3.10
3.00
2.90
10
3.10
3.00
2.90
1
6
5
5.15
4.90
4.65
PIN 1
0.50 BSC
0.95
0.85
0.75
0.15
0.05
1.10 MAX
0.33
0.17
SEATING
PLANE
0.23
0.08
8°
0°
0.80
0.60
0.40
COPLANARITY
0.10
COMPLIANT TO JEDEC STANDARDS MO-187-BA
Figure 10. 10-Lead Mini Small Outline Package [MSOP]
(RM-10)
Dimensions shown in millimeters
ORDERING GUIDE
Model
AD8563ARMZ-R21
AD8563ARMZ-REEL1
1
Temperature Range
−40°C to +125°C
−40°C to +125°C
Package Description
10-Lead MSOP
10-Lead MSOP
Z = Pb-free part.
Rev. PrA | Page 13 of 15
Package Option
RM-10
RM-10
Branding
A09
A09
AD8563
Preliminary Technical Data
NOTES
Rev. PrA | Page 14 of 15
Preliminary Technical Data
AD8563
NOTES
©2006 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
PR06202-0-6/06(PrA)
Rev. PrA | Page 15 of 15