Datasheet > OPA4189

OPA4189

更新时间： 2024-11-05 11:06:35

品牌	Logo	应用领域
德州仪器 - TI		放大器运算放大器复用器
页数	文件大小	规格书
52页	4071K
描述
四路、14MHz、支持多路复用器、零漂移、轨到轨输出、精密运算放大器

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中文翻译

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数据手册

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OPA4189 数据手册

OPA189, OPA2189, OPA4189

SBOS830I – SEPTEMBER 2017 – REVISED OCTOBER 2021

OPAx189 Precision, Lowest-Noise, 36-V, Zero-Drift, 14-MHz,

MUX-Friendly, Rail-to-Rail Output Operational Amplifiers

1 Features

3 Description

•

Ultra-high precision:

The OPA189, OPA2189, and OPA4189 (OPAx189)

high-precision operational amplifiers are ultra-low

noise, fast-settling, zero-drift devices that provide rail-

to-rail output operation and feature a unique MUX-

friendly architecture and controlled start-up system.

These features and excellent ac performance,

combined with only 0.4 µV of offset voltage and

0.005µV/°C of drift over temperature for the single-

channel version, make the OPAx189 a great choice

for precision instrumentation, signal measurement,

and active filtering applications. Moreover, the MUX-

friendly input architecture prevents inrush current

when applying large input differential voltages,

which improves settling performance in multichannel

systems, all while providing robust ESD protection

during shipment, handling, and assembly.

– Zero-drift: 0.005 μV/°C (OPA189)

– Ultra-low offset voltage: 3 μV maximum

(OPA189)

Excellent dc precision:

– CMRR: 168 dB

•

– Open-loop gain: 170 dB

Low noise:

– e_nat 1 kHz: 5.2 nV/√Hz

– 0.1-Hz to 10-Hz noise: 0.1 µV_PP

Excellent dynamic performance:

– Gain bandwidth: 14 MHz

– Slew rate: 20 V/µs

– Fast settling: 10-V step, 0.01% in 1.1 µs

Robust design:

– MUX-friendly inputs

– RFI/EMI filtered inputs

Wide supply range: 4.5 V to 36 V

Quiescent current: 1.7 mA (maximum)

Rail-to-rail output

•

All versions are specified from –40°C to +125°C.

•

Device Information

PART NUMBER

PACKAGE⁽¹⁾

BODY SIZE (NOM)

4.90 mm × 3.90 mm

2.90 mm × 1.60 mm

3.00 mm × 3.00 mm

4.90 mm × 3.90 mm

3.00 mm × 3.00 mm

5.00 mm × 4.40 mm

8.65 mm × 3.91 mm

SOIC (8)

Input includes negative rail

OPA189

SOT-23 (5)

VSSOP (8)

SOIC (8)

2 Applications

•

Battery test

Analog input module

Weigh scale

DC power supply, ac source, electronic load

Multifunction relay

OPA2189

OPA4189

VSSOP (8)

TSSOP (14)

SOIC (14)

(1) For all available packages, see the package option

addendum at the end of the data sheet.

Analog Inputs

OPAx189 MUX-friendly Inputs

Prevents Loading of Source

OPAx189

Bridge Sensor

OPAx189

4:2

MUX

Robust MUX-Friendly Inputs

without Anti-Parallel Diodes

Thermocouple

OPAx189

Current Sensing

Competitor HV Amp

Photo

Detector

Classical High-Voltage Op Amp

Anti-Parallel Diodes Loads Source

High-Voltage Level Translation

Input

LED

High-Voltage Multiplexed Input

Optical Sensor

Time

OPAx189 Preserves R-C Settling Performance in a

Switched or Multiplexed Application

OPAx189 MUX-Friendly Input Settles Quickly and

Maintains High Input Impedance When Switched

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...52

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与OPA4189相关器件

型号	品牌	获取价格	描述	数据表
OPA4189IDR	TI	获取价格	OPAx189 Precision, Lowest-Noise, 36-V, Zero-Drift, 14-MHz, MUX-Friendly, Rail-to-Rail Outp
OPA4189IDT	TI	获取价格	OPAx189 Precision, Lowest-Noise, 36-V, Zero-Drift, 14-MHz, MUX-Friendly, Rail-to-Rail Outp
OPA4189IPWR	TI	获取价格	OPAx189 Precision, Lowest-Noise, 36-V, Zero-Drift, 14-MHz, MUX-Friendly, Rail-to-Rail Outp
OPA4189IPWT	TI	获取价格	OPAx189 Precision, Lowest-Noise, 36-V, Zero-Drift, 14-MHz, MUX-Friendly, Rail-to-Rail Outp
OPA4191	TI	获取价格	具有 RRIO 的四路低功耗 36V 精密 e-trim 放大器
OPA4191ID	TI	获取价格	具有 RRIO 的四路低功耗 36V 精密 e-trim 放大器 \| D \| 14 \| -
OPA4191IDR	TI	获取价格	具有 RRIO 的四路低功耗 36V 精密 e-trim 放大器 \| D \| 14 \| -
OPA4191IPWR	TI	获取价格	OPAx191 36-V, Low-Power, Precision, CMOS, Rail-to-Rail Input/Output, Low Offset Voltage, L
OPA4191IPWT	TI	获取价格	OPAx191 36-V, Low-Power, Precision, CMOS, Rail-to-Rail Input/Output, Low Offset Voltage, L
OPA4191IRUMR	TI	获取价格	具有 RRIO 的四路低功耗 36V 精密 e-trim 放大器 \| RUM \| 16 \|

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