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OPA445BM

High Voltage FET-Input Operational Amplifier

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OPA445BM General Description

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).

opa445bm opa445bm

Key Features

  • 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.

opa445bm opa445bm
opa445bm opa445bm

Specifications

Category Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps Series -
Amplifier Type General Purpose Number of Circuits 1
Output Type - Slew Rate 15V/µs
Gain Bandwidth Product 2 MHz Current - Input Bias 10 pA
Voltage - Input Offset 1 mV Current - Supply 4.2mA
Current - Output / Channel 15 mA Voltage - Supply Span (Min) 20 V
Voltage - Supply Span (Max) 90 V Operating Temperature -25°C ~ 85°C
Mounting Type Through Hole Base Product Number OPA445

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Ratings and Reviews

More
J
J**n 11/09/2023

Two bms and both good working!!! Shurik refused to work. Even dancing with the tambourine didn't help.

10
v
v**n 12/09/2021

Exactly 100 fog coming only four ohms

19
M
M**n 12/17/2020

Arrived in three weeks. Track tracked. All as in the description. I'm happy.

9
C
C**a 11/25/2020

10 pieces, all workers. I think the photo is not necessary.

2

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