ad8229-kgd Analog Devices, Inc., ad8229-kgd Datasheet

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ad8229-kgd

Manufacturer Part Number
ad8229-kgd
Description
Manufacturer
Analog Devices, Inc.
Datasheet
Known Good Die
FEATURES
Designed for 210°C operation
Low noise
High CMRR
Excellent ac specifications
Versatile
Known good die (KGD): these die are fully guaranteed to
APPLICATIONS
Down-hole instrumentation
Harsh environment data acquisition
Exhaust gas measurements
Vibration analysis
GENERAL DESCRIPTION
The
designed for measuring small signals in the presence of large
common-mode voltages and high temperatures.
The
ation. The process is dielectrically isolated to avoid leakage
currents at high temperatures. The design architecture was chosen
to compensate for the low V
The
industry leading 1 nV/√Hz input noise performance. The high
CMRR of the
corrupting the acquisition. The CMRR increases as the gain
increases, offering high rejection when it is most needed.
The
available. Its current feedback architecture provides bandwidth
that is quite high, even at high gains, for example, 1.2 MHz at
G = 100. With the high bandwidth comes excellent distortion
performance, allowing use in demanding applications such as
vibration analysis.
Rev. 0
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.
1 nV/√Hz input noise
45 nV/√Hz output noise
126 dB CMRR (minimum), G = 100
80 dB CMRR (minimum) to 5 kHz, G = 1
15 MHz bandwidth (G = 1)
1.2 MHz bandwidth (G = 100)
22 V/µs slew rate
THD: 130 dB (1 kHz, G = 1)
±4 V to ±17 V dual supply
Gain set with single resistor (G = 1 to 1000)
Temperature range: −40°C to +210°C
data sheet specifications
AD8229-KGD
AD8229-KGD
AD8229-KGD
AD8229-KGD
AD8229-KGD
is an ultralow noise instrumentation amplifier
is one of the fastest instrumentation amplifiers
has been designed for high temperature oper-
excels at distinguishing tiny signals. It delivers
BE
prevents unwanted signals from
voltages at high temperatures.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Gain is set from 1 to 1000 with a single resistor. A reference pin
allows the user to offset the output voltage. This feature is useful
when interfacing with analog-to-digital converters.
Additional application and technical information can be found
in the
AD8229
–100
1 nV/√Hz Low Noise 210°C
100
–20
–40
–60
–80
80
60
40
20
Instrumentation Amplifier
Figure 2. Typical Input Offset vs. Temperature (G = 100)
0
–55 –35 –15
FUNCTIONAL BLOCK DIAGRAM
standard product data sheet.
+IN
–IN
R
R
G
G
5
AD8229-KGD
25 45 65 85 105 125 145 165 185 205 225
©2011 Analog Devices, Inc. All rights reserved.
TEMPERATURE (°C)
Figure 1.
AD8229-KGD
+V
V
REF
–V
OUT
S
S
www.analog.com

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ad8229-kgd Summary of contents

Page 1

... 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. 1 nV/√Hz Low Noise 210°C Instrumentation Amplifier AD8229-KGD FUNCTIONAL BLOCK DIAGRAM – ...

Page 2

... AD8229-KGD TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 REVISION HISTORY 8/11—Revision 0: Initial Version Absolute Maximum Ratings ........................................................6 ESD Caution...................................................................................6 Pad Configuration and Function Descriptions .............................7 Outline Dimensions ..........................................................................8 Die Specifications and Assembly Recommendations ..............8 Ordering Guide .............................................................................8 Rev Page Known Good Die ...

Page 3

... V = ± ± −40°C to +210°C −40°C to +210°C −40°C to +210°C −40°C to +210° 210° 210°C A Rev Page AD8229-KGD Min Typ Max Unit 86 dB 300 nV/V/°C 106 dB 30 nV/V/°C 126 dB 3 nV/V/° ...

Page 4

... AD8229-KGD Parameter DYNAMIC RESPONSE Small Signal Bandwidth – 100 G = 1000 Settling Time 0.01 100 G = 1000 Settling Time 0.001 100 G = 1000 Slew Rate 100 2 GAIN Gain Range Gain Error 100 G = 1000 Gain Nonlinearity 1000 Gain vs ...

Page 5

... Performance at 210°C is guaranteed for 1000 hours assuming that the maximum junction temperature listed in the Absolute Maximum Ratings, Table 2 is not exceeded. Test Conditions/Comments Min ± 210°C A −40 . For G>1, R errors should be added to the specifications given in this table 2 DIFF PIN CM Rev Page AD8229-KGD Typ Max Unit ± +210 ° /2. PIN ...

Page 6

... AD8229-KGD ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage Output Short-Circuit Current Duration 1 Maximum Voltage at –IN, +IN 1 Differential Input Voltage Gain ≤ > Gain > 50 Gain ≥ 50 Maximum Voltage at REF Storage Temperature Range Specified Temperature Range Maximum Junction Temperature 1 For voltages beyond these limits, use input protection resistors. ...

Page 7

... Gain Setting Pad Double Gain Setting Pad Single Gain Setting Pad. G +IN Single Positive Input Pad. −V Single Negative Power Supply Pad. S REF Double Reference Voltage Pad. V Single Output Pad. OUT +V Single Positive Power Supply Pad. S Rev Page AD8229-KGD ...

Page 8

... TOP VIEW (CIRCUIT SIDE) 0.092 × 0.092 Figure 4. AD8229-KGD Die 1.755 mm × 2.890 mm Die Size (Dimensions shown in millimeters) Value 1665 × 2800 90 × 90 1.755 × 2.890 483 ± × 92 0.5 AlCu Bare Polymide ...

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