OPA445 High Voltage FET-Input Operational Amplifier | TI.com

OPA445
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High Voltage FET-Input Operational Amplifier

High Voltage FET-Input Operational Amplifier - OPA445
Datasheet
 

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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).

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.

Parametrics

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Part number Order Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) Output current (Typ) (mA) GBW (Typ) (MHz) Slew rate (Typ) (V/us) Vos (offset voltage @ 25 C) (Max) (mV) Offset drift (Typ) (uV/C) Iq per channel (Typ) (mA) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Input bias current (Max) (pA) CMRR (Typ) (dB) Rail-to-rail Architecture
OPA445 Order now 1     20     90     26     2     15     3     10     4.2         Catalog     -55 to 125     PDIP | 8
SO PowerPAD | 8
SOIC | 8
TO-99 | 8    
8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8TO-99: 80 mm2: 8.96 x 8.96 (TO-99 | 8)    
50     95     No     FET    
OPA454 Order now 1     10     100     120     2.5     13     4     1.6     3.2     Shutdown     Catalog     -55 to 125     SO PowerPAD | 8     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)     100     146     No     FET    
OPA462 Order now 1     12     180     30     6.5     25     4     1.6     3.2     Shutdown     Catalog     -40 to 85     SO PowerPAD | 8     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)     100     147     No     FET