OPA333

現行

微功耗、1.8-V、17-µA 零漂移 CMOS 精密運算放大器

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產品規格表

document-pdfAcrobat OPAx333 1.8-V, microPower, CMOS Operational Amplifiers, Zero-Drift Series datasheet (Rev. E) (英文) PDF | HTML

OPA333

現行

產品規格表

立即訂購

產品詳細資料

Number of channels

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

5.5

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

1.8

Vos (offset voltage at 25°C) (max) (mV)

0.01

Offset drift (typ) (µV/°C)

0.02

Input bias current (max) (pA)

200

GBW (typ) (MHz)

0.35

Features

EMI Hardened, Small Size, Zero Drift

Slew rate (typ) (V/µs)

0.16

Rail-to-rail

In, Out

Iq per channel (typ) (mA)

0.017

Vn at 1 kHz (typ) (nV√Hz)

CMRR (typ) (dB)

130

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iout (typ) (A)

0.005

Architecture

CMOS

Input common mode headroom (to negative supply) (typ) (V)

-0.1

Input common mode headroom (to positive supply) (typ) (V)

0.1

Output swing headroom (to negative supply) (typ) (V)

0.03

Output swing headroom (to positive supply) (typ) (V)

-0.03

Number of channels

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

5.5

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

1.8

Vos (offset voltage at 25°C) (max) (mV)

0.01

Offset drift (typ) (µV/°C)

0.02

Input bias current (max) (pA)

200

GBW (typ) (MHz)

0.35

Features

EMI Hardened, Small Size, Zero Drift

Slew rate (typ) (V/µs)

0.16

Rail-to-rail

In, Out

Iq per channel (typ) (mA)

0.017

Vn at 1 kHz (typ) (nV√Hz)

CMRR (typ) (dB)

130

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iout (typ) (A)

0.005

Architecture

CMOS

Input common mode headroom (to negative supply) (typ) (V)

-0.1

Input common mode headroom (to positive supply) (typ) (V)

0.1

Output swing headroom (to negative supply) (typ) (V)

0.03

Output swing headroom (to positive supply) (typ) (V)

-0.03

SOIC (D)

29.4 mm² (4.9 mm × 6 mm)

SOT-23 (DBV)

8.12 mm² (2.9 mm × 2.8 mm)

SOT-SC70 (DCK)

4.2 mm² (2 mm × 2.1 mm)

Low Offset Voltage: 10 µV (Maximum)
Zero Drift: 0.05 µV/°C (Maximum)
0.01-Hz to 10-Hz Noise: 1.1 µV_PP
Quiescent Current: 17 µA
Single-Supply Operation
Supply Voltage: 1.8 V to 5.5V
Rail-to-Rail Input/Output
microSize Packages: SC70 and SOT23

Low Offset Voltage: 10 µV (Maximum)
Zero Drift: 0.05 µV/°C (Maximum)
0.01-Hz to 10-Hz Noise: 1.1 µV_PP
Quiescent Current: 17 µA
Single-Supply Operation
Supply Voltage: 1.8 V to 5.5V
Rail-to-Rail Input/Output
microSize Packages: SC70 and SOT23

The OPAx333 series of CMOS operational amplifiers use a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 µV, maximum) and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) can be used. These devices are optimized for low-voltage, single-supply operation.

The OPAx333 family offers excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.

The OPA333 (single version) is available in the 5-pin SOT-23, SOT, and 8-pin SOIC packages, while the OPA2333 (dual version) is available in the 8-pin VSON, SOIC, and VSSOP packages. All versions are specified for operation from –40°C to 125°C.

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重要文件	類型	標題	格式選項	日期
*	資料表	OPAx333 1.8-V, microPower, CMOS Operational Amplifiers, Zero-Drift Series datasheet (Rev. E)	PDF \| HTML	2015/12/17
	白皮書	Optimizing Chopper Amplifier Accuracy (Rev. A)	PDF \| HTML	2025/5/15
	Application brief	Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D)	PDF \| HTML	2024/12/5
	應用說明	Low-level voltage-to-current converter circuit (Rev. A)	PDF \| HTML	2024/10/10
	Circuit design	Low-power, bidirectional current-sensing circuit (Rev. B)	PDF \| HTML	2024/10/2
	Product overview	Bridge Sensor Solution (Rev. A)	PDF \| HTML	2023/1/27
	技術文章	How to achieve microvoltage-level precision in thermopile applications	PDF \| HTML	2021/12/9
	Circuit design	Temperature sensing with NTC circuit (Rev. A)	PDF \| HTML	2021/6/3
	Circuit design	Temperature sensing with PTC circuit (Rev. B)	PDF \| HTML	2021/5/19
	電子書	An Engineer’s Guide to Designing with Precision Amplifiers		2021/4/29
	技術文章	The next evolution in automotive op amps	PDF \| HTML	2021/4/14
	Application brief	Zero-Drift Amplifiers: Features and Benefits (Rev. C)		2021/1/28
	Application brief	Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A)	PDF \| HTML	2020/12/8
	Application brief	Low-Power, Small-Size, High-Side Current Monitoring		2020/6/3
	技術文章	How to design an infrared thermometer quickly	PDF \| HTML	2020/4/7
	Application brief	EMI-Hardened Op Amps Reduce Errors in Infusion Pumps (Rev. A)		2019/8/21
	電子書	The Signal e-book: A compendium of blog posts on op amp design topics	PDF \| HTML	2017/3/28
	白皮書	Voltage-reference impact on total harmonic distortion		2016/8/1
	應用說明	EMI Rejection Ratio of Op Amps (With OPA333 and OPA333-Q1 as an Example) (Rev. A)		2015/7/1
	應用說明	OPA333, OPA2333 EMI Immunity Performance (Rev. A)		2012/10/31
	類比設計期刊	New zero-drift amplifier has an IQ of 17 μA		2007/5/18

設計與開發

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開發板

AMP-PDK-EVM — 放大器性能開發套件評估模組

放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。

AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝，包括：

D (SOIC-8 和 SOIC-14)
PW (TSSOP-14)
DGK (VSSOP-8)
DBV (SOT23-5 和 SOT23-6)
DCK (SC70-5 和 SC70-6)

使用指南: PDF | HTML

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開發板

REF6025EVM-PDK — REF6025 電壓參考評估模組

REF6025EVM-PDK 是評估 REF6025 電壓參考性能的平台。評估套件可展現裝置的突衝模式性能，這是裝置的主要功能。

使用指南: PDF

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支援軟體

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)

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設計工具