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OPA837IDCKT中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

OPA837IDCKT
廠商型號(hào)

OPA837IDCKT

功能描述

OPAx837 Low-Power, Precision, 105-MHz, Voltage-Feedback Op Amp

文件大小

2.67823 Mbytes

頁(yè)面數(shù)量

63 頁(yè)

生產(chǎn)廠商 Texas Instruments
企業(yè)簡(jiǎn)稱

TI德州儀器

中文名稱

美國(guó)德州儀器公司官網(wǎng)

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數(shù)據(jù)手冊(cè)

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更新時(shí)間

2025-5-4 15:10:00

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OPA837IDCKT規(guī)格書詳情

1 Features

1? Bandwidth: 105 MHz (AV = 1 V/V)

? Very Low (Trimmed) Supply Current: 600 μA

? Gain Bandwidth Product: 50 MHz

? Slew Rate: 105 V/μs

? Negative Rail Input, Rail-to-Rail Output

? Single-Supply Operating Range: 2.7 V to 5.4 V

? 25°C Input Offset: ±130 μV (Max)

? Input Offset Voltage Drift (DCK Package):

< ±1.6 μV/°C (Maximum)

? Input Voltage Noise: 4.7 nV/√Hz (> 100 Hz)

? HD2: –120 dBc at 2 VPP, 100 kHz

? HD3: –145 dBc at 2 VPP, 100 kHz

? Settling Time: 35 ns, 0.5-V Step to 0.1

? 5-μA Shutdown Current With Fast Recovery From

Shutdown for Power Scaling Applications

2 Applications

? 12-Bit to 16-Bit, Low-Power SAR Drivers

? Precision ADC Reference Buffers

? Very-Low-Power Active Filters

? Low-Power Transimpedance Amplifiers

? Sensor Signal Conditioning

? Wearable Devices

? Low-Side Current Sensing

3 Description

The OPA837 and OPA2837 are single- and dualchannel

unity-gain stable, voltage-feedback amplifiers

that provide among the highest MHz per mW of

bandwidth versus power among precision op amps.

Using only 600 μA per channel on a single 5-V

supply, these 3.0-mW devices deliver 105-MHz

bandwidth at a gain of 1 V/V. The very low trimmed

offset voltage of ±130 μV (maximum) comes with a

typical (±1σ) drift of ±0.4 μV/°C.

Ideally suited to single-ended, successiveapproximation

register (SAR) analog-to-digitalconverter

(ADC) driving applications, the OPAx837

provides one of the lowest input spot noise levels at

4.7 nV/√Hz for the 3-mW quiescent power. The very

high 50-MHz gain bandwidth product provides the low

output impedance to high frequencies required to

supply the fast charging currents in SAR ADC driver

applications. This low dynamic output impedance is

also suitable for reference buffer applications with

precision ADCs. The single-channel OPA837 is

available in a 6-pin SOT-23 package (that includes a

power shutdown feature) and a 5-pin SC70 package

whereas the dual-channel OPA2837 is available in an

8-pin VSSOP package and a 10-pin WQFN package.

The OPAx837 is characterized for operation over the

a wide temperature range of –40°C to +125°C.

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