Sound-Plus High-Performance, JFET-Input Audio OpAmps - OPA1642

OPA1642 (ACTIVE)

Sound-Plus High-Performance, JFET-Input Audio OpAmps

Recommended alternative parts

Description

The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications.

The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Features include 5.1nV/√Hz noise, low THD+N (0.00005%), a low input bias current of 2pA, and low quiescent current of 1.8mA per channel.

These devices operate over a very wide supply voltage range of ±2.25V to ±18V. The OPA1641, OPA1642, and OPA1644 series of op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.

The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.

The OPA1641, OPA1642, and OPA1644 are specified from –40°C to +85°C.

Features

  • SUPERIOR SOUND QUALITY
  • TRUE JFET INPUT OP AMP
    WITH LOW INPUT BIAS CURRENT
  • LOW NOISE: 5.1nV/√Hz at 1kHz
  • ULTRALOW DISTORTION: 0.00005% at 1kHz
  • HIGH SLEW RATE: 20V/µs
  • UNITY GAIN STABLE
  • NO PHASE REVERSAL
  • LOW QUIESCENT CURRENT:
    1.8mA per Channel
  • RAIL-TO-RAIL OUTPUT
  • WIDE SUPPLY RANGE: ±2.25V to ±18V
  • SINGLE, DUAL, AND QUAD VERSIONS AVAILABLE
  • APPLICATIONS
    • PROFESSIONAL AUDIO EQUIPMENT
    • ANALOG AND DIGITAL MIXING CONSOLES
    • BROADCAST STUDIO EQUIPMENT
    • HIGH-END A/V RECEIVERS
    • HIGH-END BLU-RAY™ PLAYERS

SoundPlus is a trademark of Texas Instruments Incorporated.
BLU-RAY is a trademark of Blu-Ray Disc Assocation.
All other trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Precision Amplifier

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
Iq per channel (Max) (mA)
Slew Rate (Typ) (V/us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Offset Drift (Typ) (uV/C)
CMRR (Min) (dB)
GBW (Typ) (MHz)
IIB (Max) (pA)
Vn at 1kHz (Typ) (nV/rtHz)
Rail-Rail
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
OPA1642 OPA1641 OPA1644 OPA1652 OPA1654 OPA1662 OPA1662-Q1 OPA1664
2     1     4     2     4     2     2     4    
5     5     5     4.5     4.5     3     3     3    
36     36     36     36     36     36     36     36    
2.3     2.3     2.3     2.5     2     1.8     1.8     1.5    
20     20     20     10     10     17     17     17    
1     1     1     1.5     1.5     1.5     1.5     1.5    
      2     2     2     2     2    
      110     110     114     114     114    
11     11     11     18     18     22     22     22    
      100     100     1200000     1200000     1200000    
5.1     5.1     5.1     4.5     4.5     3.3     3.3     3.3    
Out     Out     Out     Out     Out     Out     Out     Out    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Automotive     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
8SOIC
8VSSOP    
8SOIC
8VSSOP    
14SOIC
14TSSOP    
8SOIC
8VSSOP    
14SOIC
14TSSOP    
8SOIC
8VSSOP    
8SOIC
8VSSOP    
14SOIC
14TSSOP    
1.40 | 1ku     0.95 | 1ku     1.95 | 1ku     0.65 | 1ku     0.95 | 1ku     0.75 | 1ku     0.88 | 1ku     1.10 | 1ku    

Featured tools and software

WEBENCH® OPA1642
 
    Filter Type
  Lowpass
Highpass
Bandpass
 
  Cutoff Frequency  Hz  
  Gain  dB  
  Filter Response  
  Filter Order  
 
 
Click Here