型号OPA2340
品牌
分类精密运算放大器 (Vos<1mV)
描述双路、单电源、轨到轨、低功耗运算放大器
相关操作
产品概述

参数

Number of channels 2
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7
Vos (offset voltage at 25°C) (max) (mV) 0.5
GBW (typ) (MHz) 5.5
Slew rate (typ) (V/µs) 6
Rail-to-rail In, Out
Offset drift (typ) (µV/°C) 2.5
Iq per channel (typ) (mA) 0.75
Vn at 1 kHz (typ) (nV√Hz) 25
CMRR (typ) (dB) 92
Rating Catalog
Operating temperature range (°C) -40 to 85
Input bias current (max) (pA) 10
Iout (typ) (A) 0.05
Architecture CMOS
Input common mode headroom (to negative supply) (typ) (V) -0.3
Input common mode headroom (to positive supply) (typ) (V) 0.3
Output swing headroom (to negative supply) (typ) (V) 0.01
Output swing headroom (to positive supply) (typ) (V) -0.01
THD + N at 1 kHz (typ) (%) 0.0007

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6
VSSOP (DGK) 8 14.7 mm² 3 x 4.9

特性

  • Rail-to-Rail Input
  • Rail-to-Rail Output (Within 1 mV)
  • MicroSize Packages
  • Wide Bandwidth: 5.5 MHz
  • High Slew Rate: 6 V/µs
  • Low THD + Noise: 0.0007% (f = 1 kHz)
  • Low Quiescent Current: 750 µA/Channel
  • Single, Dual, and Quad Versions

说明

The OPA340 series rail-to-rail CMOS operational amplifiers are optimized for low-voltage, single-supply operation. Rail-to-rail input and output and high-speed operation make them ideal for driving sampling analog-to-digital (A/D) converters. They are also well-suited for general purpose and audio applications as well as providing I/V conversion at the output of digital-to-analog (D/A) converters. Single, dual, and quad versions have identical specifications for design flexibility.

The OPA340 series operate on a single supply as low as 2.5 V with an input common-mode voltage range that extends 500 mV below ground and 500 mV above the positive supply. Output voltage swing is to within 1 mV of the supply rails with a 100-kΩ load. These devices offer excellent dynamic response (BW = 5.5 MHz, SR = 6 V/µs), yet quiescent current is only 750 A. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

The single (OPA340) packages are the tiny 5-pin SOT-23 surface mount, 8-pin SOIC surface mount, and 8-pin DIP. The dual (OPA2340) comes in the miniature 8-pin VSSOP surface mount, 8-pin SOIC surface mount, and 8-pin PDIP packages. The quad (OPA4340) packages are the space-saving 16-pin SSOP surface mount and 14-pin SOIC surface mount. All are specified from –40°C to 85°C and operate from –55°C to 125°C. A SPICE macromodel is available for design analysis.