Overview
The SSM2135SZ, produced by Analog Devices Inc., is a dual single-supply audio operational amplifier. It is particularly well-suited for applications in computer audio systems, portable digital audio units, and various multimedia audio systems. The amplifier is known for its excellent sonic characteristics, high output drive capability, and low noise and distortion levels, 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% | % | ||
| Supply Voltage Range | VS | Single supply | 4 | 36 | V | |
| Supply Voltage Range | VS | Dual supply | ±2 | ±18 | V | |
| Supply Current | ISY | VS = 5 V, VOUT = 2.0 V, no load | 2.8 | 6.0 | mA | |
| Operating Temperature Range | TA | −40 | +85 | °C |
Key Features
- Excellent sonic characteristics
- High output drive capability
- Low noise: 5.2 nV/√Hz equivalent input noise at 1 kHz
- Low distortion: 0.003% THD + N (VOUT = 1 V p-p @ 1 kHz)
- Unity-gain stable
- 3.5 MHz gain bandwidth
- Low cost
- Available in an 8-lead plastic SOIC package
- Guaranteed for operation over the extended industrial temperature range of −40°C to +85°C
Applications
- Multimedia audio systems
- Microphone preamplifiers
- Headphone drivers
- Speaker driving
- 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 SSM2135SZ used for?
The SSM2135SZ is used in various audio applications, including preamplification, headphone and speaker driving, and balanced line driving and receiving.
- What are the key features of the SSM2135SZ?
Key features include excellent sonic characteristics, high output drive capability, low noise and distortion, unity-gain stability, and a 3.5 MHz gain bandwidth.
- What is the supply voltage range for the SSM2135SZ?
The supply voltage range is 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 types are available for the SSM2135SZ?
The SSM2135SZ is available in an 8-lead plastic SOIC package.
- What are some common applications of the SSM2135SZ?
Common applications include multimedia audio systems, microphone preamplifiers, headphone drivers, and single-supply stereo output amplifiers for audio DACs.
- What is the typical supply current for the SSM2135SZ?
The typical supply current is 2.8 mA to 6.0 mA at VS = 5 V and VOUT = 2.0 V with no load.
- Is the SSM2135SZ suitable for high-temperature environments?
Yes, it is guaranteed for operation over the extended industrial temperature range of −40°C to +85°C.
- What is the signal-to-noise ratio (SNR) of the SSM2135SZ?
The SNR is 121 dBu from 20 Hz to 20 kHz.
- Is the SSM2135SZ RoHS compliant?
Yes, the SSM2135SZ is RoHS compliant.
