OPA604 FET-Input, Audio Operational Amplifier | TI.com

OPA604 (ACTIVE)

FET-Input, Audio Operational Amplifier

 

Special Note

For newer devices, see OPA1641.

Description

The OPA604 is a FET-input operational amplifier designed for enhanced AC performance. Very low distortion, low noise and wide bandwidth provide superior performance in high quality audio and other applications requiring excellent dynamic performance.

New circuit techniques and special laser trimming of dynamic circuit performance yield very low harmonic distortion. The result is an op amp with exceptional sound quality. The low-noise FET input of the OPA604 provides wide dynamic range, even with high source impedance. Offset voltage is laser-trimmed to minimize the need for interstage coupling capacitors.

The OPA604 is available in 8-pin plastic mini-DIP and SO-8 surface-mount packages, specified for the –25°C to +85°C temperature range.

Features

  • LOW DISTORTION: 0.0003% at 1kHz
  • LOW NOISE: 10nV/Hz
  • HIGH SLEW RATE: 25V/µs
  • WIDE GAIN-BANDWIDTH: 20MHz
  • UNITY-GAIN STABLE
  • WIDE SUPPLY RANGE: VS = ±4.5 to ±24V
  • DRIVES 600 LOAD
  • DUAL VERSION AVAILABLE (OPA2604)
  • APPLICATIONS
    • PROFESSIONAL AUDIO EQUIPMENT
    • PCM DAC I/V CONVERTERS
    • SPECTRAL ANALYSIS EQUIPMENT
    • ACTIVE FILTERS
    • TRANSDUCER AMPLIFIERS
    • DATA ACQUISITION

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Audio op amps

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-Rail
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
Features
THD + N @ 1 kHz (Typ) (%)
Rating
Operating Temperature Range (C)
Package Group
Output Current (Typ) (mA)
Package Size: mm2:W x L (PKG)
Architecture
CMRR (Typ) (dB)
Input Bias Current (Max) (pA)
OPA604
1    
9    
48    
20    
25    
No    
5    
5.3    
11    
Burr-Brown™ Audio    
0.0003    
Catalog    
-40 to 85    
PDIP | 8
SOIC | 8    
35    
See datasheet (PDIP)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    
FET    
100    
200    

Design tool

Design with OPA604

Filter Type
 Lowpass
 Highpass
 Bandpass
 Bandstop
 
Cutoff Frequency  Hz
Gain  dB
Filter Response
Filter Order


Preview design