Overview
The SSM2143SZ-REEL, produced by Analog Devices Inc., is an integrated differential amplifier designed to receive balanced line inputs in audio applications. This component is particularly suited for environments requiring high immunity from common-mode noise. It offers a high level of common-mode rejection (CMR) and is optimized for use in professional audio systems where signal integrity and low distortion are critical.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Total Harmonic Distortion Plus Noise | THD+N | VIN = 10 V rms, RL = 10 kΩ, f = 1 kHz | 0.0006% | % | ||
| Signal-to-Noise Ratio | SNR | 0 dBu = 0.775 V rms, 20 kHz BW, RTI | -107.3 dBu | dBu | ||
| Slew Rate | SR | RL = 2 kΩ, CL = 200 pF | 6 | 10 | V/µs | |
| Small Signal Bandwidth | BW–3 dB | RL = 2 kΩ, CL = 200 pF, G = 1/2 | 7 MHz | MHz | ||
| Common-Mode Rejection | CMR | VCM = ±10 V, RTI, f = dc | 70 | 90 | dB | |
| Input Offset Voltage | VIOS | VCM = 0 V, RTI, G = 2 | -1.2 | 0.05 | +1.2 | mV |
| Supply Voltage Range | VS | ±6 | ±18 | V | ||
| Supply Current | ISY | VCM = 0 V, RL = ∞ | ±2.7 | ±4.0 | mA |
Key Features
- High Common-Mode Rejection: The SSM2143SZ-REEL offers a typical CMR of 90 dB, ensuring high immunity from common-mode noise.
- Ultralow Total Harmonic Distortion (THD): With a THD of less than 0.004% over the full audio band, this component is ideal for high-fidelity audio applications.
- Fast Slew Rate and Wide Bandwidth: The device features a slew rate of 10 V/µs and a bandwidth of 7 MHz at a gain of 1/2, making it suitable for a wide range of audio frequencies.
- Two Gain Levels Available: The SSM2143SZ-REEL can be configured for gains of 1/2 or 2 by adjusting the input and sense connections.
- Low Cost and High Reliability: This component is designed to be cost-effective while maintaining high performance and reliability in professional audio systems).
Applications
- Professional Audio Systems: The SSM2143SZ-REEL is ideal for use in professional audio equipment where high signal integrity and low distortion are critical).
- Audio Signal Processing: It is suitable for applications involving balanced line inputs and requires high common-mode rejection and low THD).
- Long Cable Runs: When paired with the SSM2142 Balanced Line Driver, it provides a fully integrated solution for driving audio signals over long cable runs).
Q & A
- What is the typical common-mode rejection (CMR) of the SSM2143SZ-REEL?
The typical CMR is 90 dB).
- What is the total harmonic distortion (THD) of the SSM2143SZ-REEL at 1 kHz?
The THD is less than 0.0006% at 1 kHz).
- What are the available gain levels for the SSM2143SZ-REEL?
The device can be configured for gains of 1/2 or 2).
- What is the slew rate of the SSM2143SZ-REEL?
The slew rate is 10 V/µs).
- What is the bandwidth of the SSM2143SZ-REEL at a gain of 1/2?
The bandwidth is 7 MHz at a gain of 1/2).
- What is the input voltage range for the SSM2143SZ-REEL?
The input voltage range is ±28 V differential and ±15 V common mode).
- What is the supply voltage range for the SSM2143SZ-REEL?
The supply voltage range is ±6 V to ±18 V).
- What is the typical supply current of the SSM2143SZ-REEL?
The typical supply current is ±4.0 mA).
- What are the typical applications for the SSM2143SZ-REEL?
It is typically used in professional audio systems, audio signal processing, and long cable runs).
- How can the gain of the SSM2143SZ-REEL be adjusted?
The gain can be adjusted by reversing the +IN/–IN and SENSE/REFERENCE connections).
