OPA454 高电压 (100V) 和高电流 (50mA) 运算放大器,G = 1 稳定 | 德州仪器 TI.com.cn

OPA454 (正在供货)

高电压 (100V) 和高电流 (50mA) 运算放大器,G = 1 稳定



The OPA454 device is a low-cost operational amplifier with high voltage (100 V) and relatively high current drive (50 mA). It is unity-gain stable and has a gain-bandwidth product of 2.5 MHz.

The OPA454 is internally protected against overtemperature conditions and current overloads. It is fully specified to perform over a wide power-supply range of ±5 V to ±50 V or on a single supply of 10 V to 100 V. The status flag is an open-drain output that allows it to be easily referenced to standard low-voltage logic circuitry. This high-voltage operational amplifier provides excellent accuracy, wide output swing, and is free from phase inversion problems that are often found in similar amplifiers.

The output can be independently disabled using the Enable or Disable Pin that has its own common return pin to allow easy interface to low-voltage logic circuitry. This disable is accomplished without disturbing the input signal path, not only saving power but also protecting the load.

Featured in a small exposed metal pad package, the OPA454 is easy to heatsink over the extended industrial temperature range, –40°C to +85°C.


  • Wide Power-Supply Range:
    ±5 V (10 V) to ±50 V (100 V)
  • High-Output Load Drive: IO > ±50 mA
  • Wide Output Voltage Swing: 1 V to Rails
  • Independent Output Disable or Shutdown
  • Wide Temperature Range: –40°C to +85°C
  • 8-Pin SO Package


参数 与其它产品相比 功率 运算放大器

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)
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
Input bias current (Max) (pA)
CMRR (Typ) (dB)
OPA454 OPA445
1     1    
10     20    
100     90    
120     26    
2.5     2    
13     15    
4     3    
1.6     10    
3.2     4.2    
Catalog     Catalog    
-55 to 125     -55 to 125    
SO PowerPAD | 8     PDIP | 8
SO PowerPAD | 8
SOIC | 8
TO-99 | 8    
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)     See datasheet (PDIP)
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8TO-99: 80 mm2: 8.96 x 8.96 (TO-99 | 8)    
100     50    
146     95    
No     No    
FET     FET    


WEBENCH® Designer OPA454

Amplifier Topology
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 10.0 to 120.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C