型号OPA445
品牌
分类功率运算放大器
描述高电压 FET 输入运算放大器
相关操作
产品概述

参数

Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 20
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 90
Iout (typ) (A) 0.026
GBW (typ) (MHz) 2
Slew rate (typ) (V/µs) 15
Vos (offset voltage at 25°C) (max) (mV) 3
Offset drift (typ) (V/°C) 0.00001
Iq per channel (typ) (mA) 4.2
Rating Catalog
Operating temperature range (°C) -55 to 125
Input bias current (max) (pA) 50
CMRR (typ) (dB) 95
Rail-to-rail No
Architecture FET

封装 | 引脚 | 尺寸

HSOIC (DDA) 8 29.4 mm² 4.9 x 6
PDIP (P) 8 92.5083 mm² 9.81 x 9.43
SOIC (D) 8 29.4 mm² 4.9 x 6
TO-CAN (LMC) 8 80.2816 mm² 8.96 x 8.96

特性

  • WIDE-POWER SUPPLY RANGE: ±10V to ±45V
  • HIGH SLEW RATE: 15V/µs
  • LOW INPUT BIAS CURRENT: 10pA
  • STANDARD-PINOUT TO-99, DIP, SO-8 PowerPAD™, AND SO-8 SURFACE-MOUNT PACKAGES
  • APPLICATIONS
    • TEST EQUIPMENT
    • HIGH-VOLTAGE REGULATORS
    • POWER AMPLIFIERS
    • DATA ACQUISITION
    • SIGNAL CONDITIONING
    • AUDIO
    • PIEZO DRIVERS

PowerPAD is a trademark of Texas Instruments, Inc. All other trademarks are the property of their respective owners.

说明

The OPA445 is a monolithic operational amplifier capable of operation from power supplies up to ±45V and output currents of 15mA. It is useful in a wide variety of applications requiring high output voltage or large common-mode voltage swings.

The OPA445's high slew rate provides wide powerbandwidth response, which is often required for high-voltage applications. FET input circuitry allows the use of high-impedance feedback networks, thus minimizing their output loading effects. Laser trimming of the input circuitry yields low input offset voltage and drift.

The OPA445 is available in standard pinout TO-99, DIP-8, and SO-8 surface-mount packages as well as an SO-8 PowerPAD package for reducing junction temperature. It is fully specified from -25°C to +85°C and operates from -55°C to +125°C. A SPICE macromodel is available for design analysis (from www.ti.com).