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OPA2604 Amplifiers: Schematic, Replacement and Datasheet

IC OPAMP GP 2 CIRCUIT 8DIP Hello, everyone.This is Rose. Today we will have a discussion about OPA2604,

203

Aug 15, 2021

Cherry Malthus

Which OpAmp is Better for 20W Class A Amplifier - OPA2604 vs NE5532?

 

IC OPAMP GP 2 CIRCUIT 8DIP

Hello, everyone.This is Rose. Today we will have a discussion about OPA2604, which is a dual FET-input, low-distortion operational amplifier.This article mainly introduce schematic, replacement, datasheet and other detailed information about Texas Instruments OPA2604.

OPA2604AP

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OPA2604 Description

The OPA2604 is a dual, FET-input operational amplifier designed for enhanced AC performance. Low distortion, low noise, and wide bandwidth provide superior performance in high quality audio and other applications requiring dynamic performance. 

 

New circuit techniques and special laser-trimming of dynamic circuit performance yield low harmonic distortion. The result is an operational amplifier with exceptional sound quality. The low-noise FET input of the OPA2604 provides wide dynamic range, even 2 Applications with high source impedance. 

 

Offset voltage is laser-trimmed to minimize the need for interstage coupling capacitors. The OPA2604 is available in 8-pin plastic mini-DIP and 8-Pin SOIC surface-mount packages, specified for the –25°C to 85°C temperature range.

OPA2604 Pinout

OPA2604 CAD Model

Symbol

 

Footprint

 

3D Model

OPA2604 Features

●Low Distortion: 0.0003% at 1 kHz

●Low Noise: 10 nV/√Hz

●High Slew Rate: 25 V/µs

●Wide Gain-Bandwidth: 20 MHz

●Unity-Gain Stable

●Wide Supply Range: VS = ±4.5 to ±24 V

●Drives 600-Ω Loads

 

Specifications

Texas Instruments OPA2604AP technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments OPA2604AP.

OPA2604AP Tech Specifications

Texas Instruments OPA2604AP technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments OPA2604AP.

Product Attribute Attribute Value
Mounting TypeThrough Hole
Package / Case8-DIP (0.300, 7.62mm)
Surface MountNO
Number of Pins8Pins
Operating Temperature-25°C~85°C
PackagingTube
JESD-609 Codee4
Part StatusObsolete
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations8Terminations
ECCN CodeEAR99
Terminal FinishNickel/Palladium/Gold (Ni/Pd/Au)
Terminal PositionDUAL
Number of Functions2Functions
Supply Voltage15V
Base Part NumberOPA2604
Product Attribute Attribute Value
Pin Count8
Number of Channels2Channels
Operating Supply Current10.5mA
Nominal Supply Current12mA
Max Supply Current12mA
Slew Rate25V/μs
ArchitectureVOLTAGE-FEEDBACK
Amplifier TypeGeneral Purpose
Common Mode Rejection Ratio80 dB
Current - Input Bias100pA
Voltage - Supply, Single/Dual (±)9V~48V ±4.5V~24V
Output Current per Channel35mA
Input Offset Voltage (Vos)5mV
Bandwidth20MHz
Neg Supply Voltage-Nom (Vsup)-15V
Unity Gain BW-Nom20000 kHz
Product Attribute Attribute Value
Voltage Gain100dB
Average Bias Current-Max (IIB)0.0001μA
Power Supply Rejection Ratio (PSRR)70dB
Low-OffsetNO
Frequency CompensationYES
Voltage - Input Offset1mV
Low-BiasYES
Dual Supply Voltage9V
Nominal Gain Bandwidth Product20MHz
Height4.57mm
Length9.81mm
Width6.35mm
REACH SVHCNo SVHC
Radiation HardeningNo
RoHS StatusROHS3 Compliant
Lead FreeLead Free
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OPA2604 Simplified Schematic

OPA2604 Layout Example

OPA2604 Applications

●Professional Audio Equipment

●PCM DAC I/V Converters

●Spectral Analysis Equipment

●Active Filters

●Transducer Amplifiers

●Data Acquisition

OPA2604 Manufacturer

As a global semiconductor company operating in 35 countries, Texas Instruments (TI) is first and foremost a reflection of its people. From the TIer who unveiled the first working integrated circuit in 1958 to the more than 30,000 TIers around the world today who design, manufacture and sell analog and embedded processing chips, we are problem-solvers collaborating to change the world through technology.

Datasheet PDF

Download datasheets and manufacturer documentation for Texas Instruments OPA2604AP.

OPA2604AP Documents

Download datasheets and manufacturer documentation for OPA2604AP

Frequently Asked Questions

1.Which OP-AMP is better, OPA2604 or OPA1612?
Comparing the noise parameters of 2604 and 1612, 1612 should be better than 2604. If the voltage range is larger, more than 18V, then the 2604 is better.
2.How to distinguish OPA2604 op-amp?
Use the power supply voltage to judge, because OPA2604 working voltage is ±4.5V-24V, when it is lower than ±4.5V, it should output abnormal sound, because NE5532, JRC4580, etc. can output sound normally under ±2.5V. Then increase the power supply to ±24, and few op amps can survive this voltage.
3.OPA2604 or OPA2132 which op-amp sounds good?
OPA3132: Low distortion: 0.00008% (1kHz) Low noise: 8nV/√Hz (1kHz) OPA2604: Low distortion: 0.0003% (1kHz) Low noise: 10nV/Hz (1kHz) From the two parameters that have the greatest impact on sound quality, OPA3132 is better.
4.How to interchange OPA2604 and ST TJM4558CDT op amp?
The definition of IC pins is uniform. If it is a package with a semicircular notch; the front of the IC is facing up and the notch is turned to the left. The first pin under the notch is pin 1, and the pin sequence is counterclockwise. If it is a package without a semicircular notch; there will be a small round pit (small dot) at a certain corner of the front of the IC, and the pin under the small round pit is 1 pin, and the order of the pins is also counterclockwise. The pins can be interchanged by aligning them.
5.Is the pin definition of OPA2604 and NE5532 the same?
It is the same, but the power supply voltage is different. If it is a regular plus or minus 12V, there is no problem. The low voltage NE5532 is good, and the better voltage resistance OPA2604 is good.
FAQ
1.Which OP-AMP is better, OPA2604 or OPA1612?
Comparing the noise parameters of 2604 and 1612, 1612 should be better than 2604. If the voltage range is larger, more than 18V, then the 2604 is better.
2.How to distinguish OPA2604 op-amp?
Use the power supply voltage to judge, because OPA2604 working voltage is ±4.5V-24V, when it is lower than ±4.5V, it should output abnormal sound, because NE5532, JRC4580, etc. can output sound normally under ±2.5V. Then increase the power supply to ±24, and few op amps can survive this voltage.
3.OPA2604 or OPA2132 which op-amp sounds good?
OPA3132: Low distortion: 0.00008% (1kHz) Low noise: 8nV/√Hz (1kHz) OPA2604: Low distortion: 0.0003% (1kHz) Low noise: 10nV/Hz (1kHz) From the two parameters that have the greatest impact on sound quality, OPA3132 is better.
4.How to interchange OPA2604 and ST TJM4558CDT op amp?
The definition of IC pins is uniform. If it is a package with a semicircular notch; the front of the IC is facing up and the notch is turned to the left. The first pin under the notch is pin 1, and the pin sequence is counterclockwise. If it is a package without a semicircular notch; there will be a small round pit (small dot) at a certain corner of the front of the IC, and the pin under the small round pit is 1 pin, and the order of the pins is also counterclockwise. The pins can be interchanged by aligning them.
5.Is the pin definition of OPA2604 and NE5532 the same?
It is the same, but the power supply voltage is different. If it is a regular plus or minus 12V, there is no problem. The low voltage NE5532 is good, and the better voltage resistance OPA2604 is good.

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