AD8230-EVAL

更新时间： 2024-11-30 04:30:59

品牌	Logo	应用领域
亚德诺 - ADI		仪表放大器
页数	文件大小	规格书
16页	508K
描述
16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier

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AD8230-EVAL 数据手册

16 V Rail-to-Rail, Zero-Drift,

Precision Instrumentation Amplifier

AD8230

2.0

1.5

FEATURES

Resistor programmable gain range: 10¹to 1000

Supply voltage range: 4 V to 8 V, +8 V to +16 V

Rail-to-rail input and output

1.0

0.5

Maintains performance over −40°C to +125°C

EXCELLENT AC AND DC PERFORMANCE

–0.5

–1.0

–1.5

–2.0

110 dB minimum CMR @ 60 Hz, G = 10 to 1000

10 µV max offset voltage (RTI, 5 V)

50 nV/°C max offset drift

20 ppm max gain nonlinearity

–50 –30 –10

110 130 150

TEMPERATURE (°C)

APPLICATIONS

Figure 1. Relative Offset Voltage vs. Temperature

Pressure measurements

Temperature measurements

Strain measurements

+5V

–5V

0.1µF

Automotive diagnostics

0.1µF

GENERAL DESCRIPTION

TYPE K THERMOCOUPLE

AD8230

OUT

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 (min) 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.

34.8kΩ

284Ω

Figure 2. 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.

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 10¹and 1000, users may adjust the output

offset voltage.

¹The AD8230 can be programmed for a gain as low as 2, but the maximum

input voltage is limited to approximately 750 mV.

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

12 3 4 5 6 7...16

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与AD8230-EVAL相关器件

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AD8230YRZ	ADI	获取价格	16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier
AD8230YRZ1	ADI	获取价格	16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier
AD8230YRZ-REEL	ADI	获取价格	16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier
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AD8230YRZ-REEL7	ADI	获取价格	16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier
AD8230YRZ-REEL71	ADI	获取价格	16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier
AD8231	ADI	获取价格	Zero Drift, Digital Programmable Instrumentation Amplifier
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