SSM2143SZ Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The SSM2143SZ is a -6 dB differential line receiver audio amplifier from Analog Devices, designed for balanced audio interconnects with a ±6 V to ±18 V supply range and high common-mode rejection. Available in SOIC-8 package with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- SSM2143SZ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $9.2500(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed -6 dB gain differential receiver: accurately attenuates balanced line-level audio signals by 6 dB to match professional +4 dBu to consumer -10 dBV standards
- Wide supply range: operates from ±6 V to ±18 V dual supply covering professional audio equipment rails
- High CMRR: superior common-mode rejection ratio suppresses hum, ground noise, and cable-induced interference on balanced 3-wire audio connections
Applications
The SSM2143SZ is designed for professional audio equipment that receives balanced differential line signals from mixing consoles, preamplifiers, and studio interfaces, where it converts the +4 dBu balanced signal to a consumer -10 dBV unbalanced level with its fixed -6 dB gain. It is widely used in line-level input stages of audio power amplifiers, A/D converters, and digital audio workstation interfaces operating from ±15 V rails. Its high CMRR ensures clean audio performance even in electrically noisy environments with long cable runs.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | R-8 |
| YTEOL | 0 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Neg Supply Voltage-Max (Vsup) | -18 V |
| Neg Supply Voltage-Min (Vsup) | -6 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 6V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## SSM2143SZ Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SSM2143SZ:
Frequently Asked Questions
What is the gain and supply voltage range of the SSM2143SZ differential line receiver?
The SSM2143SZ provides a fixed -6 dB gain (voltage ratio of 0.5) for balanced differential audio inputs, and operates from a dual supply of ±6 V to ±18 V with a nominal ±15 V rail, covering virtually all professional audio equipment power supplies.
How does SSM2143SZ handle common-mode noise on a long balanced audio cable run?
The SSM2143SZ achieves high common-mode rejection ratio (CMRR) that attenuates noise signals simultaneously present on both conductors of a balanced pair — such as 50 Hz or 60 Hz mains hum picked up across cable runs of 10 m or more — while preserving the differential audio signal with minimal distortion at 20 Hz to 20 kHz.
When should an engineer use SSM2143SZ instead of a discrete op-amp difference amplifier for a balanced input stage?
Discrete op-amp difference amplifiers require four precision resistors matched to within 0.1% to achieve CMRR above 60 dB, whereas the SSM2143SZ integrates the resistor network on-chip with factory trimming, saving PCB area in an SOIC-8 footprint and reducing component count from 5 parts to 1 while maintaining consistent performance across -40°C to +85°C.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $15.0000 | $15.00 |
| 8+ | $10.0000 | $80.00 |
| 26+ | $9.2500 | $240.50 |
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