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AD8237ARMZ-RL

更新时间： 2024-11-18 12:51:55

品牌	Logo	应用领域
亚德诺 - ADI		仪表放大器放大器电路光电二极管
页数	文件大小	规格书
28页	648K
描述
Micropower, Zero Drift, True Rail-to-Rail Instrumentation Amplifier

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AD8237ARMZ-RL 数据手册

Micropower, Zero Drift, True Rail-to-Rail

Instrumentation Amplifier

AD8237

Data Sheet

FEATURES

PIN CONFIGURATION

AD8237

Gain set with 2 external resistors

Can achieve low gain drift at all gains

Ideal for battery powered instruments

Supply current: 115 µA

+IN

–IN

OUT

–

REF

TOP VIEW

(Not to Scale)

–V

Rail-to-rail input and output

Zero input crossover distortion

Designed for excellent dc performance

Minimum CMRR: 106 dB

Figure 1.

Maximum offset voltage drift: 0.3 µV/°C

Maximum gain error: 0.005% (all gains)

Maximum gain drift: 0.5 ppm/°C (all gains)

Input bias current: 1 nA guaranteed to 125°C

Bandwidth mode pin (BW) to adjust compensation

8 kV HBM ESD rating

RFI filter on-chip

Table 1. Instrumentation Amplifiers by Category¹

Single-supply operation: 1.8 V to 5.5 V

8-lead MSOP package

General

Purpose

Zero

Drift

Military

Grade

Digital

Gain

Micropower

AD8237

AD8421

AD8237 AD620

AD8250

AD8251

APPLICATIONS

AD8221/AD8222 AD8231 AD621

AD8220/AD8224 AD8293 AD524

AD8420

AD8235/AD8236 AD8253

AD627 AD8231

Bridge amplification

Pressure measurement

Medical instrumentation

Thermocouple interface

Portable systems

AD8228

AD8295

AD8226

AD8553 AD526

AD8556 AD624

AD8557

¹See www.analog.com for the latest instrumentation amplifiers.

Current measurement

GENERAL DESCRIPTION

The AD8237 is a micropower, zero drift, rail-to-rail input and

output instrumentation amplifier. The relative match of two

resistors sets any gain from 1 to 1000. The AD8237 has excellent

gain accuracy performance that can be preserved at any gain

with two ratio-matched resistors.

The AD8237 is available in an 8-lead MSOP package. Performance

is specified over the full temperature range of −40°C to +125°C.

AD8237

G = 100

= 5V

= 2.5V

REF

TRADITIONAL IN-AMP

(RAIL-TO-RAIL OUT)

The AD8237 employs the indirect current feedback architecture to

achieve a true rail-to-rail capability. Unlike conventional in-amps,

the AD8237 can fully amplify signals with common-mode voltage

at or even slightly beyond its supplies. This enables applications

with high common-mode voltages to use smaller supplies and

save power.

The AD8237 is an excellent choice for portable systems. With a

minimum supply voltage of 1.8 V, a 115 µA typical supply current,

and wide input range, the AD8237 makes full use of a limited

power budget, yet offers bandwidth and drift performance suitable

for bench-top systems.

–1

OUTPUT VOLTAGE (V)

Figure 2. Input Common-Mode Voltage vs. Output Voltage, +V_S= 5 V, G = 100

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

rightsof third parties that may result fromits 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 andregisteredtrademarks 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: 781.461.3113

www.analog.com

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AD8237ARMZ-RL 替代型号

型号	品牌	替代类型	描述	数据表
AD8237ARMZ	ADI	类似代替	Micropower, Zero Drift, True Rail-to-Rail Instrumentation Amplifier

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