Amplifier. AD8230 Datasheet

AD8230 Datasheet PDF


Part

AD8230

Description

Precision Instrumentation Amplifier

Manufacture

Analog Devices

Page 17 Pages
Datasheet
Download AD8230 Datasheet


AD8230 Datasheet
16 V Rail-to-Rail, Zero-Drift,
Precision Instrumentation Amplifier
AD8230
FEATURES
Resistor programmable gain range: 101 to 1000
Supply voltage range: ±4 V to ±8 V
Rail-to-rail input and output
Maintains performance over −40°C to +125°C
Excellent ac and dc performance
110 dB minimum CMR @ 60 Hz, G = 10 to 1000
10 μV maximum offset voltage (RTI, ±5 V operation)
50 nV/°C maximum offset drift
20 ppm maximum gain nonlinearity
APPLICATIONS
Pressure measurements
Temperature measurements
Strain measurements
Automotive diagnostics
GENERAL DESCRIPTION
The AD8230 is a low drift, differential sampling, precision
instrumentation amplifier. Auto-zeroing reduces offset voltage
drift to less than 50 nV/°C. The AD8230 is well-suited for
thermocouple and bridge transducer applications. The
AD8230’s high CMR of 110 dB (minimum) rejects line noise in
measurements where the sensor is far from the instrumentation.
The 16 V rail-to-rail, common-mode input range is useful for
noisy environments where ground potentials vary by several
volts. Low frequency noise is kept to a minimal 3 μV p-p,
making the AD8230 perfect for applications requiring the
utmost dc precision. Moreover, the AD8230 maintains its high
performance over the extended industrial temperature range of
−40°C to +125°C.
Two external resistors are used to program the gain. By using
matched external resistors, the gain stability of the AD8230 is
much higher than instrumentation amplifiers that use a single
resistor to set the gain. In addition to allowing users to program
the gain between 101 and 1000, users can adjust the output
offset voltage.
CONNECTION DIAGRAM
–VS 1
+VS 2
8 VOUT
7 RG
VREF1 3
+IN 4
AD8230
6 VREF2
5 –IN
TOP VIEW
(Not to Scale)
Figure 1. 8-Lead SOIC (R-8)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–50 –30 –10
10 30 50 70 90
TEMPERATURE (°C)
110 130 150
Figure 2. Relative Offset Voltage vs. Temperature
+5V
–5V
0.1µF
0.1µF
2
41
TYPE K THERMOCOUPLE AD8230
8
5
6
3
7
34.8k
VOUT
284
Figure 3. Thermocouple Measurement
The AD8230 is versatile yet simple to use. Its auto-zeroing
topology significantly minimizes the input and output
transients typical of commutating or chopper instrumentation
amplifiers. The AD8230 operates on ±4 V to ±8 V (+8 V to +16 V)
supplies and is available in an 8-lead SOIC.
1 The AD8230 can be programmed for a gain as low as 2, but the maximum
input voltage is limited to approximately 750 mV.
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 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.
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 ©2004–2007 Analog Devices, Inc. All rights reserved.

AD8230 Datasheet
AD8230* Product Page Quick Links
Last Content Update: 08/30/2016
Comparable Parts
View a parametric search of comparable parts
Documentation
Application Notes
• AN-282: Fundamentals of Sampled Data Systems
• AN-671: Reducing RFI Rectification Errors in In-Amp
Circuits
Data Sheet
• AD8230: 16 V Rail-to-Rail, Zero-Drift, Precision
Instrumentation Amplifier Data Sheet
Technical Books
• A Designer's Guide to Instrumentation Amplifiers, 3rd
Edition, 2006
Reference Materials
Analog Dialogue
• Which ADC Architecture Is Right for Your Application?
Technical Articles
• Auto-Zero Amplifiers
• High-performance Adder Uses Instrumentation Amplifiers
• Input Filter Prevents Instrumentation-amp RF-Rectification
Errors
• The AD8221 - Setting a New Industry Standard for
Instrumentation Amplifiers
Design Resources
• AD8230 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all AD8230 EngineerZone Discussions
Sample and Buy
Visit the product page to see pricing options
Technical Support
Submit a technical question or find your regional support
number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.


Features Datasheet pdf 16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier AD8230 FEAT URES Resistor programmable gain range: 101 to 1000 Supply voltage range: ±4 V to ±8 V Rail-to-rail input and output Maintains performance over −40°C to +125°C Excellent ac and dc performanc e 110 dB minimum CMR @ 60 Hz, G = 10 to 1000 10 μV maximum offset voltage (RT I, ±5 V operation) 50 nV/°C maximum o ffset drift 20 ppm maximum gain nonline arity APPLICATIONS Pressure measurement s Temperature measurements Strain measu rements Automotive diagnostics GENERAL DESCRIPTION The AD8230 is a low drift, differential sampling, precision instru mentation amplifier. Auto-zeroing reduc es offset voltage drift to less than 50 nV/°C. The AD8230 is well-suited for thermocouple and bridge transducer appl ications. The AD8230’s high CMR of 11 0 dB (minimum) rejects line noise in me asurements where the sensor is far from the instrumentation. The 16 V rail-to- rail, common-mode input range is useful for noisy environments .
Keywords AD8230, datasheet, pdf, Analog Devices, Precision, Instrumentation, Amplifier, D8230, 8230, 230, AD823, AD82, AD8, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute, Equivalent




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)