SSM2142PZ - English Editing Encyclopedia Entry

Product Overview

Category

The SSM2142PZ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in audio applications for balanced line driving and receiving.

Characteristics

• The SSM2142PZ is a high-performance, differential input/output amplifier.
• It provides excellent common-mode rejection ratio (CMRR) and low distortion.
• This IC operates with a single power supply voltage ranging from 4.5V to 36V.
• It is designed to handle audio signals with a wide dynamic range.

Package

The SSM2142PZ is available in a small outline package (SOIC) with 14 pins.

Essence

The essence of the SSM2142PZ lies in its ability to convert unbalanced audio signals into balanced signals, reducing noise and interference.

Packaging/Quantity

The SSM2142PZ is typically sold in reels or tubes, containing a quantity of 50 units per package.

Specifications

• Supply Voltage: 4.5V to 36V
• Input Voltage Range: ±VS
• Output Voltage Swing: ±VS - 1.5V
• Common-Mode Rejection Ratio (CMRR): >80dB
• Total Harmonic Distortion (THD): <0.01%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SSM2142PZ has 14 pins, which are assigned as follows:

1. V-
2. IN-
3. IN+
4. GND
5. BYPASS
6. OUT+
7. OUT-
8. NC
9. NC
10. NC
11. NC
12. VS
13. VS
14. V+

Functional Features

• High common-mode rejection ratio (CMRR) ensures effective rejection of common-mode noise.
• Low distortion allows for accurate reproduction of audio signals.
• Wide operating voltage range provides flexibility in various applications.
• Differential input/output configuration enables balanced signal transmission.

Advantages and Disadvantages

Advantages

• Excellent common-mode rejection ratio (CMRR)
• Low distortion
• Wide operating voltage range
• Small package size

Disadvantages

• Limited pin configuration options
• Higher cost compared to some alternatives

Working Principles

The SSM2142PZ operates based on the principle of differential amplification. It takes an unbalanced audio signal as input and converts it into a balanced signal. This conversion is achieved by amplifying the difference between the two input terminals while rejecting any common-mode noise present in the signal.

Detailed Application Field Plans

The SSM2142PZ finds extensive use in professional audio equipment, such as mixing consoles, audio interfaces, and amplifiers. It is also employed in audio transmission systems, where balanced signals are required for long-distance transmission with minimal noise interference.

Detailed and Complete Alternative Models

1. INA134 - Texas Instruments
2. DRV134 - Texas Instruments
3. THAT1646 - THAT Corporation
4. LT1963A - Analog Devices
5. SSM2143 - Analog Devices

These alternative models offer similar functionality and can be considered as substitutes for the SSM2142PZ in various audio applications.

In conclusion, the SSM2142PZ is a high-performance integrated circuit designed for balanced line driving and receiving in audio applications. Its excellent common-mode rejection ratio, low distortion, and wide operating voltage range make it a popular choice among professionals in the audio industry. While it has some limitations in terms of pin configuration options and cost, there are several alternative models available that offer similar functionality.