Overview
The SSM2135SZ, produced by Analog Devices Inc., is a dual single-supply audio operational amplifier designed to deliver excellent performance in various audio applications. It is particularly well-suited for computer audio systems, portable digital audio units, and other low-power audio systems. The amplifier offers high output drive capability, low noise, and minimal distortion, making it ideal for preamplification, headphone and speaker driving, and balanced line driving and receiving.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Voltage Noise Density | en | f = 1 kHz | 5.2 | nV/√Hz | ||
| Current Noise Density | in | f = 1 kHz | 0.5 | pA/√Hz | ||
| Signal-To-Noise Ratio | SNR | 20 Hz to 20 kHz, 0 dBu = 0.775 V rms | 121 | dBu | ||
| Total Harmonic Distortion Plus Noise | THD + N | AV = +1, VOUT = 1 V p-p, f = 1 kHz, RL = 10 kΩ | 0.003% | 0.005% | % | |
| Supply Voltage Range | VS | Single supply | 4 | 36 | V | |
| Dual supply | ±2 | ±18 | V | |||
| Power Supply Rejection Ratio | PSRR | VS = 4 V to 6 V, f = dc | 90 | 120 | dB | |
| Supply Current | ISY | VS = 5 V, VOUT = 2.0 V, no load | 2.8 | 6.0 | mA | |
| VS = ±18 V, VOUT = 0 V, no load | 3.7 | 7.6 | mA | |||
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- Excellent sonic characteristics with low noise and distortion.
- High output drive capability.
- Low voltage noise density of 5.2 nV/√Hz at 1 kHz.
- Low total harmonic distortion plus noise (THD + N) of 0.003% at 1 kHz.
- Unity-gain stable with a gain bandwidth of 3.5 MHz.
- Wide supply voltage range: single supply from 4 V to 36 V, and dual supply from ±2 V to ±18 V.
- High power supply rejection ratio (PSRR) of 90 dB to 120 dB.
- Available in an 8-lead plastic SOIC package.
- Guaranteed operation over the extended industrial temperature range of -40°C to +85°C.
Applications
- Multimedia audio systems.
- Microphone preamplifiers.
- Headphone drivers and speaker drivers.
- Balanced line driving and receiving.
- Input signal conditioning in single-supply, Σ-Δ, analog-to-digital converter subsystems.
- Single-supply stereo output amplifier for audio digital-to-analog converters (DACs).
Q & A
- What is the primary application of the SSM2135SZ? The SSM2135SZ is primarily used in audio systems, including computer audio, portable digital audio units, microphone preamplifiers, and headphone drivers.
- What is the voltage noise density of the SSM2135SZ? The voltage noise density is 5.2 nV/√Hz at 1 kHz.
- What is the total harmonic distortion plus noise (THD + N) of the SSM2135SZ? The THD + N is 0.003% at 1 kHz with a load resistance of 10 kΩ.
- What is the supply voltage range for the SSM2135SZ? The supply voltage range is from 4 V to 36 V for single supply and ±2 V to ±18 V for dual supply.
- What is the operating temperature range of the SSM2135SZ? The operating temperature range is -40°C to +85°C.
- What package type is the SSM2135SZ available in? The SSM2135SZ is available in an 8-lead plastic SOIC package.
- Is the SSM2135SZ RoHS compliant? Yes, the SSM2135SZ is RoHS compliant.
- What is the power supply rejection ratio (PSRR) of the SSM2135SZ? The PSRR is 90 dB to 120 dB.
- Can the SSM2135SZ be used in balanced line driving and receiving applications? Yes, it can be used for balanced line driving and receiving.
- Is the SSM2135SZ suitable for use with audio digital-to-analog converters (DACs)? Yes, it is suitable for use as a single-supply stereo output amplifier for audio DACs.
