Overview
The SSM2135S-REEL7, produced by Analog Devices Inc., is a dual single-supply audio operational amplifier. This device is particularly well-suited for computer audio systems and portable digital audio units. It offers excellent sonic characteristics, high output drive capability, and low noise and distortion, making it ideal for various audio applications. The SSM2135S is available in an 8-lead plastic SOIC package and operates over an extended industrial temperature range of −40°C to +85°C.
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% | % | ||
| Slew Rate | SR | RL = 2 kΩ, TA = 25°C | 0.9 | V/μs | ||
| Gain Bandwidth Product | TA = 25°C | 3.5 | MHz | |||
| Supply Voltage Range | VS | Single supply | 4 | 36 | V | |
| Supply Current | ISY | VS = 5 V, VOUT = 2.0 V, no load | 2.8 | 6.0 | mA | |
| Operating Temperature Range | −40 | +85 | °C |
Key Features
- Excellent sonic characteristics
- High output drive capability
- Low voltage noise density of 5.2 nV/√Hz at 1 kHz
- Total harmonic distortion plus noise below 0.01% over normal signal levels and loads
- Unity-gain stable
- Low cost
- Wide output swing and load drive capability
- Operating voltage range from 4 V to 36 V (single supply) and ±2 V to ±18 V (dual supply)
- High gain bandwidth product of 3.5 MHz
- Low input bias current of 300 nA
Applications
- Multimedia audio systems
- Microphone preamplifiers
- Headphone drivers
- Differential line receivers
- Balanced line drivers
- Audio ADC input buffers
- Audio DAC I-V converters and filters
- Pseudo ground generators
- Computer audio systems
- Portable digital audio units
Q & A
- What is the typical voltage noise density of the SSM2135S?
The typical voltage noise density is 5.2 nV/√Hz at 1 kHz.
- What is the total harmonic distortion plus noise (THD + N) of the SSM2135S?
The THD + N is typically 0.003% for AV = +1, VOUT = 1 V p-p, f = 1 kHz, and RL = 10 kΩ.
- What is the gain bandwidth product of the SSM2135S?
The gain bandwidth product is typically 3.5 MHz.
- What is the operating temperature range of the SSM2135S?
The operating temperature range is −40°C to +85°C.
- What are the typical supply current values for the SSM2135S?
The typical supply current is 2.8 mA at VS = 5 V, VOUT = 2.0 V, and no load. For dual supply, it is 3.7 mA at VS = ±18 V, VOUT = 0 V, and no load.
- What are the common applications of the SSM2135S?
The SSM2135S is commonly used in multimedia audio systems, microphone preamplifiers, headphone drivers, differential line receivers, balanced line drivers, and more.
- What is the package type of the SSM2135S?
The SSM2135S is available in an 8-lead plastic SOIC package.
- What is the slew rate of the SSM2135S?
The slew rate is typically 0.9 V/μs at RL = 2 kΩ and TA = 25°C.
- Is the SSM2135S unity-gain stable?
Yes, the SSM2135S is unity-gain stable.
- What is the input bias current of the SSM2135S?
The input bias current is typically 300 nA at VCM = 0 V and VOUT = 2 V.
