Datasheet > OPA145_V03

OPA145_V03

更新时间： 2024-11-30 02:50:55

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
42页	2963K
描述
OPAx145 High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz JFET Operational Amplifiers

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OPA145_V03 数据手册

OPA145,, OPA2145

_{SBOS427E – JUNE 2017 – R}O_EVP_ISA_E1_D4_O5_C,,_TO_OBP_EA_R2₂1₀4₂5₀

SBOS427E – JUNE 2017 – REVISED OCTOBER 2020

www.ti.com

OPAx145 High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz

JFET Operational Amplifiers

1 Features

3 Description

•

Best bandwidth and slew-rate-to-power ratio:

The OPA145 and OPA2145 (OPAx145) devices are

part of a family of low-power JFET input amplifier that

have excellent drift, low current noise, and pico-

ampere input bias current. These features make the

OPZx145 an excellent choice for amplifying small

signals from high-impedance sensors.

– gain-bandwidth product: 5.5 MHz

– Slew rate: 20 V/μs

– Low supply current: 475 µA (maximum)

High precision:

– Very low offset: 150 μV (maximum)

– Very low offset drift: 1 μV/°C (maximum)

Low input bias current: 2 pA

•

The rail-to-rail output swing interfaces to modern,

single-supply, precision, analog-to-digital converters

(ADCs) and digital-to-analog converters (DACs). In

addition, the input range that includes V– allows

designers to simplify power management and take

advantage of the single-supply, low-noise JFET

architecture.

•

Excellent noise performance:

– Very low voltage noise: 7 nV/√Hz

– Very low current noise: 0.8 fA/√ Hz

Input-voltage range includes V– supply

Single-supply operation: 4.5 V to 36 V

Dual-supply operation: ±2.25 V to ±18 V

•

Device Information ⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

4.90 mm × 3.91 mm

3.00 mm × 3.00 mm

2.90 mm × 1.60 mm

4.90 mm × 3.91 mm

2 Applications

SOIC (8)

OPA145

VSSOP (8)

•

Semiconductor test

SOT-23 (5)

Lab and field instrumentation

Source measurement unit (SMU)

Weigh scale

Intra-DC interconnect (metro)

Merchant network and server PSU

DC power supply, ac source, electronic load

Data acquisition (DAQ)

SOIC (8) (Preview)

OPA2145

VSSOP (8) (Preview) 3.00 mm × 3.00 mm

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

addendum at the end of the data sheet.

R₁

1.5

50 kꢀ

C₁

9 pF

R₅

22 ꢁ

+10V

R₃

180 ꢁ

OPA145

2.5 V to 5 V 2.7 V to 3.6 V

OPA145

C₃C₅

432p 200p

GND

REF

AINP

AVDD

GND

² • V_REF

GND

ADS8867

AINN

C₄C₆

432p 200p

-1.5

-3

GND

OPA145

R₄

180 ꢁ

OPA145

Fast Silicon

PIN Photodiode

R₆

22 ꢁ

+10V

5 ꢀA

3.8 pF

2.5 mW/cm²

Photovoltaic Mode

C₂

9 pF

œ20

œ15

œ10

œ5

Input Common-mode Voltage (V)

C001

R₂

50 kꢀ

OPAx145 Precision JFET Technology Offers

Excellent Linear Input Impedance

OPAx145 Excels in 16-bit, 100-kSPS Fully

Differential Transimpedance Imaging Application

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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

Submit Document Feedback

DATA.

Product Folder Links: OPA145, OPA2145

12 3 4 5 6 7...42

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与OPA145_V03相关器件

型号	品牌	获取价格	描述	数据表
OPA145ID	TI	获取价格	单路、5.5MHz、高压摆率、低噪声、低功耗、RRO 精密 JFET 运算放大器 \| D
OPA145IDBVR	TI	获取价格	OPAx145 High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz JFET Operational Amplifier
OPA145IDBVT	TI	获取价格	OPAx145 High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz JFET Operational Amplifier
OPA145IDGKR	TI	获取价格	单路、5.5MHz、高压摆率、低噪声、低功耗、RRO 精密 JFET 运算放大器 \| DG
OPA145IDGKT	TI	获取价格	单路、5.5MHz、高压摆率、低噪声、低功耗、RRO 精密 JFET 运算放大器 \| DG
OPA145IDR	TI	获取价格	单路、5.5MHz、高压摆率、低噪声、低功耗、RRO 精密 JFET 运算放大器 \| D
OPA156A/883B	BB	获取价格	Operational Amplifier, 1 Func, 2000uV Offset-Max, MBCY8,
OPA156AD	BB	获取价格	Operational Amplifier, 1 Func, 2500uV Offset-Max,
OPA156AM	BB	获取价格	Operational Amplifier, 1 Func, 2500uV Offset-Max, BIPolar, MBCY8,
OPA1602	TI	获取价格	High-Performance, Bipolar-Input AUDIO OPERATIONAL AMPLIFIERS

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