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TS522ID Equivalent & Substitute Parts
Part Overview
The TS522ID is an audio amplifier integrated circuit manufactured by STMicroelectronics, configured as a 2-circuit audio amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability in the supply chain. The TS522ID operates across a wide supply voltage range of 5V to 30V and is qualified to AEC-Q100 automotive standards with an operating temperature range of -40°C to 125°C.
Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, production support, and long-term component sourcing. Substitute parts must maintain compatibility with the original electrical specifications, package form factor, and application requirements while offering active product status and reliable availability.
Substiute Parts
Key Parameters
| Parameter | TS522ID Value | Unit |
|---|---|---|
| Amplifier Type | Audio | — |
| Number of Circuits | 2 | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Slew Rate | 7 | V/µs |
| Gain Bandwidth Product | 15 | MHz |
| Current - Input Bias | 250 | nA |
| Voltage - Input Offset | 850 | µV |
| Current - Supply | 4 | mA |
| Current - Output / Channel | 37 | mA |
| Voltage - Supply Span (Min) | 5 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
Substitute Part Grouping Explanation
Substitution of the TS522ID requires matching the following critical parameters: 8-SOIC package form factor, dual-circuit configuration, surface mount technology, and supply voltage range compatibility. The TS522ID operates with a minimum supply voltage of 5V and maximum of 30V, establishing the acceptable operating envelope for substitute parts.
Substitute parts are grouped into two functional categories based on amplifier type and electrical performance characteristics:
Category 1: J-FET Amplifier Substitutes — Parts AD712TRZ-EP, AD8512ARZ, ADTL082ARZ, ADTL082ARZ-REEL, and ADTL082ARZ-REEL7 are J-FET input amplifiers with 2 circuits in 8-SOIC packaging. These devices maintain the same package footprint and circuit count while offering different input bias current, offset voltage, and bandwidth characteristics. All operate within or exceed the TS522ID supply voltage range.
Category 2: General Purpose Amplifier Substitutes — Parts LT1208CS8#PBF, LT1208CS8#TRPBF, LT1211CS8#PBF, LT1211CS8#TR, and LT1211CS8#TRPBF are general purpose amplifiers with 2 circuits in 8-SOIC packaging. These devices provide higher slew rates and gain bandwidth products compared to the TS522ID, with supply voltage ranges that encompass the original specification.
All substitute parts are RoHS3 compliant, MSL Level 1, and available in active product status with current manufacturing support.
Parameter Comparison
| Parameter | TS522ID | AD712TRZ-EP | AD8512ARZ | ADTL082ARZ | LT1208CS8#PBF | LT1211CS8#PBF |
|---|---|---|---|---|---|---|
| Amplifier Type | Audio | J-FET | J-FET | J-FET | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Slew Rate (V/µs) | 7 | 20 | 20 | 20 | 400 | 7 |
| Gain Bandwidth Product (MHz) | 15 | 3 | 8 | 5 | 45 | 14 |
| Current - Input Bias (pA/nA) | 250 nA | 25 pA | 25 pA | 2 pA | 4 µA | 50 nA |
| Voltage - Input Offset (µV/mV) | 850 µV | 300 µV | 100 µV | 1.5 mV | 1 mV | 150 µV |
| Current - Supply (mA) | 4 | 5 | 2.2 | 1.2 | 7 | 1.8 |
| Current - Output / Channel (mA) | 37 | 25 | 70 | 27 | 40 | 50 |
| Voltage - Supply Span Min (V) | 5 | 9 | 10 | 8 | 5 | 2.5 |
| Voltage - Supply Span Max (V) | 30 | 36 | 30 | 36 | 30 | 36 |
| Operating Temperature (°C) | -40 to 125 | -55 to 125 | -40 to 125 | -40 to 125 | 0 to 70 | 0 to 70 |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
For Direct Replacement with Minimal Design Changes:
The LT1211CS8#PBF and LT1211CS8#TRPBF offer the closest electrical alignment to the TS522ID. Both devices maintain a 7V/µs slew rate and 14 MHz gain bandwidth product, closely matching the original specification. The LT1211 series operates across a 2.5V to 36V supply range, which encompasses the TS522ID operating envelope. However, the LT1211 series is rated for 0°C to 70°C operating temperature, which does not extend to the full -40°C to 125°C automotive range of the TS522ID. These parts are suitable for applications where the full automotive temperature range is not required.
For Applications Requiring Full Automotive Temperature Range:
The ADTL082ARZ, ADTL082ARZ-REEL, and ADTL082ARZ-REEL7 maintain the -40°C to 125°C operating temperature specification and are available in active product status. These J-FET input amplifiers provide superior input bias current performance (2 pA versus 250 nA) and operate across an 8V to 36V supply range. The 5V minimum supply voltage of the TS522ID is not fully supported by the ADTL082 series, requiring verification that application circuits operate at 8V or higher.
For High-Speed Applications:
The LT1208CS8#PBF and LT1208CS8#TRPBF provide significantly higher slew rate (400V/µs) and gain bandwidth product (45 MHz) performance. These general purpose amplifiers are suitable for applications requiring enhanced frequency response and transient performance. Operating temperature is limited to 0°C to 70°C, and supply voltage range is 5V to 30V, matching the TS522ID envelope.
For Low-Power Applications:
The ADTL082ARZ series offers the lowest supply current consumption at 1.2 mA per dual-channel configuration, compared to 4 mA for the TS522ID. This reduction in power dissipation is beneficial for battery-powered or thermally constrained applications.
All recommended substitute parts maintain RoHS3 compliance, MSL Level 1 moisture sensitivity, and active manufacturing status, ensuring long-term component availability and supply chain reliability.
Frequently Asked Questions (FAQ)
Q: Can the AD712TRZ-EP directly replace the TS522ID in automotive applications?
A: The AD712TRZ-EP is a J-FET amplifier with active product status and RoHS3 compliance. However, it specifies a minimum supply voltage of 9V, whereas the TS522ID operates from 5V. Applications requiring 5V operation cannot use the AD712TRZ-EP without circuit redesign. Additionally, the AD712TRZ-EP provides only 3 MHz gain bandwidth product compared to the TS522ID's 15 MHz, which may impact frequency response in audio applications.
Q: What is the primary difference between J-FET and general purpose amplifier substitutes?
A: J-FET input amplifiers (AD712TRZ-EP, AD8512ARZ, ADTL082ARZ series) feature extremely low input bias current in the picoampere range, making them suitable for high-impedance signal sources and precision measurement applications. General purpose amplifiers (LT1208, LT1211 series) offer higher slew rates and gain bandwidth products, making them better suited for audio and wideband signal processing. The TS522ID is classified as an audio amplifier, suggesting that general purpose substitutes may provide superior performance in the original application.
Q: Are all substitute parts available in the same 8-SOIC package?
A: Yes, all substitute parts listed are available in 8-SOIC (0.154", 3.90mm Width) surface mount packaging, ensuring mechanical and electrical compatibility with the original TS522ID footprint. Packaging variants differ only in tape and reel configurations (Tube, Cut Tape & Digi-Reel, Tape & Reel), which do not affect component functionality or PCB mounting.
Q: Which substitute part best matches the TS522ID operating temperature range?
A: The ADTL082ARZ, ADTL082ARZ-REEL, and ADTL082ARZ-REEL7 maintain the -40°C to 125°C operating temperature specification of the TS522ID. The LT1208 and LT1211 series are limited to 0°C to 70°C, and the AD712TRZ-EP extends to -55°C to 125°C. For applications requiring the full automotive temperature range, the ADTL082 series is the appropriate selection.
Q: Can the LT1211CS8#TRPBF be used as a drop-in replacement for the TS522ID?
A: The LT1211CS8#TRPBF matches the TS522ID in slew rate (7V/µs), gain bandwidth product (14 MHz), and supply voltage range (2.5V to 36V encompasses 5V to 30V). The 8-SOIC package is identical. However, the operating temperature range is limited to 0°C to 70°C, which does not cover the full -40°C to 125°C automotive specification. For non-automotive applications or those operating within the 0°C to 70°C window, the LT1211CS8#TRPBF is a suitable drop-in replacement.
Q: What is the significance of the ADTL082ARZ-REEL and ADTL082ARZ-REEL7 packaging variants?
A: ADTL082ARZ-REEL and ADTL082ARZ-REEL7 are identical in electrical specification and differ only in packaging format. ADTL082ARZ-REEL is supplied in Cut Tape & Digi-Reel format, while ADTL082ARZ-REEL7 is also supplied in Cut Tape & Digi-Reel format with a different reel configuration. Both are suitable for automated assembly processes. The base ADTL082ARZ is supplied in Tube packaging. Selection depends on production equipment compatibility and inventory management requirements.
Q: Does the AD8512ARZ support the full 5V to 30V supply range of the TS522ID?
A: The AD8512ARZ specifies a minimum supply voltage of 10V and maximum of 30V. The TS522ID operates from 5V minimum. Applications requiring 5V operation cannot use the AD8512ARZ without circuit redesign to operate at higher supply voltages. The AD8512ARZ is suitable only for applications where the supply voltage is 10V or higher.
Q: Which substitute part offers the lowest input offset voltage?
A: The AD8512ARZ provides the lowest input offset voltage at 100 µV, compared to 850 µV for the TS522ID. This superior offset voltage performance is beneficial for precision audio applications where DC offset rejection is critical. The ADTL082ARZ series provides 1.5 mV offset voltage, which is higher than the TS522ID but acceptable for most audio applications.
Q: Are all substitute parts suitable for audio frequency applications?
A: The TS522ID is specifically classified as an audio amplifier. The LT1211CS8 series, with 14 MHz gain bandwidth product and 7V/µs slew rate, is well-suited for audio applications. The LT1208CS8 series, with 45 MHz gain bandwidth product and 400V/µs slew rate, provides excess performance for audio but is suitable for wideband signal processing. The J-FET amplifiers (AD712TRZ-EP, AD8512ARZ, ADTL082ARZ series) are general-purpose devices suitable for audio but optimized for precision measurement applications. Selection should be based on specific frequency response and dynamic range requirements of the target application.
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