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BA15532F-E2 Equivalent & Substitute Parts
Part Overview
The BA15532F-E2 is a dual-channel audio amplifier integrated circuit manufactured by Rohm Semiconductor in 8-SOP surface mount packaging. This device is classified as obsolete, indicating discontinued production and limited availability in the market. The part operates across a wide supply voltage range of 6V to 40V and delivers 38mA output per channel, making it suitable for audio amplification applications requiring moderate bandwidth and slew rate performance.
Due to its obsolete status, identifying functionally equivalent substitute components is necessary for design continuity, production support, and long-term system reliability. Substitute parts must maintain compatibility with existing circuit designs while meeting the electrical and mechanical requirements of the original specification.
Substiute Parts
Key Parameters
| Parameter | BA15532F-E2 Value | Unit |
|---|---|---|
| Amplifier Type | Audio | — |
| Number of Circuits | 2 | — |
| Slew Rate | 8 | V/µs |
| Gain Bandwidth Product | 20 | MHz |
| Current - Input Bias | 200 | nA |
| Voltage - Input Offset | 500 | µV |
| Current - Supply | 8 | mA |
| Current - Output / Channel | 38 | mA |
| Voltage - Supply Span (Min) | 6 | V |
| Voltage - Supply Span (Max) | 40 | V |
| Operating Temperature | -20°C ~ 75°C | — |
| Mounting Type | Surface Mount | — |
| Package / Case | 8-SOIC (0.173", 4.40mm Width) | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the BA15532F-E2 are selected based on the following critical parameters that determine functional compatibility:
Core Compatibility Criteria:
- Number of Circuits: Must be 2 (dual-channel configuration)
- Mounting Type: Surface Mount required
- Package Type: 8-SOIC or 8-SOP footprint
- Supply Voltage Range: Must encompass or exceed the 6V to 40V operating window
- Output Current per Channel: Must meet or exceed 38mA requirement
- Input Offset Voltage: Must be within acceptable tolerance (500µV reference)
Substitution Logic:
Substitute parts are grouped into two functional categories based on amplifier topology:
-
Current Feedback Amplifiers (AD812 Series): These devices offer significantly higher bandwidth (145MHz) and slew rate (1600V/µs) compared to the BA15532F-E2. Current feedback topology provides superior high-frequency performance and is suitable for applications where the BA15532F-E2's audio-grade specifications are exceeded by design margins.
-
Voltage Feedback Amplifiers (AD826 and AD828 Series): These devices maintain voltage feedback topology similar to the original part. The AD826 series provides 50MHz bandwidth with moderate slew rate (350V/µs), while the AD828 series delivers 130MHz bandwidth with 450V/µs slew rate. Both maintain dual-channel configuration and 8-SOIC packaging.
All substitute parts listed are active products with ROHS3 compliance and MSL Level 1 rating, ensuring long-term availability and environmental regulatory compliance.
Parameter Comparison
| Parameter | BA15532F-E2 | AD812ARZ | AD826ARZ | AD828ARZ | ADTL082ARZ | Unit |
|---|---|---|---|---|---|---|
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | — |
| Slew Rate | 8 | 1600 | 350 | 450 | 20 | V/µs |
| Gain Bandwidth Product | 20 | — | 50 | — | 5 | MHz |
| -3dB Bandwidth | — | 145 | 50 | 130 | — | MHz |
| Current - Supply | 8 | 4.5 | 6.6 | 14 | 1.2 | mA |
| Current - Output / Channel | 38 | 50 | 50 | 50 | 27 | mA |
| Voltage - Supply Span (Min) | 6 | 2.4 | 5 | 5 | 8 | V |
| Voltage - Supply Span (Max) | 40 | 36 | 36 | 36 | 36 | V |
| Current - Input Bias | 200 | — | 3.3 | — | 2 | nA / pA |
| Voltage - Input Offset | 500 | — | 500 | — | 1.5 | µV / mV |
| Operating Temperature | -20°C ~ 75°C | — | -40°C ~ 85°C | — | -40°C ~ 125°C | — |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | — |
| Package / Case | 8-SOIC (0.173", 4.40mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | — |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | — |
Engineering Selection Recommendations
AD812ARZ Series (Current Feedback Topology):
The AD812ARZ, AD812ARZ-REEL, and AD812ARZ-REEL7 variants are current feedback amplifiers with active product status. These parts deliver 1600V/µs slew rate and 145MHz bandwidth, substantially exceeding the BA15532F-E2 specifications. Output current capability is 50mA per channel, meeting the 38mA requirement. Supply voltage range is 2.4V to 36V (single supply) or ±1.2V to ±18V (dual supply), which covers the lower end of the BA15532F-E2 range but does not extend to 40V maximum. These devices are suitable for applications where higher bandwidth and faster transient response are beneficial or where the original part's performance margin is insufficient.
AD826ARZ Series (Voltage Feedback Topology):
The AD826ARZ, AD826ARZ-REEL, and AD826ARZ-REEL7 variants are voltage feedback amplifiers with active product status. These parts provide 50MHz gain bandwidth product and 350V/µs slew rate, representing a moderate performance increase over the BA15532F-E2. Output current is 50mA per channel. Supply voltage range is 5V to 36V, which does not extend to the 40V maximum of the original part. Input offset voltage is specified at 500µV, matching the BA15532F-E2 exactly. Operating temperature range extends to -40°C to 85°C, providing broader environmental coverage than the original -20°C to 75°C specification.
AD828ARZ Series (Voltage Feedback Topology):
The AD828ARZ and AD828ARZ-REEL7 variants are voltage feedback amplifiers with active product status. These parts deliver 130MHz bandwidth and 450V/µs slew rate, providing significant performance enhancement. Output current is 50mA per channel. Supply voltage range is 5V to 36V (single supply) or ±2.5V to ±18V (dual supply), which does not extend to 40V maximum. These devices are suitable for video and high-speed audio applications where the BA15532F-E2's bandwidth is limiting.
ADTL082ARZ Series (J-FET Topology):
The ADTL082ARZ and ADTL082ARZ-REEL variants are J-FET input amplifiers with active product status. These parts feature extremely low input bias current (2pA) and moderate slew rate (20V/µs). Output current is 27mA per channel, which is below the 38mA requirement of the BA15532F-E2. Supply voltage range is 8V to 36V, which does not cover the 6V minimum of the original part. These devices are suitable only for applications where ultra-low input bias current is a primary design requirement and output current demand can be reduced.
Packaging Consideration:
The BA15532F-E2 is specified in 8-SOIC with 0.173" (4.40mm) width. All substitute parts are specified in 8-SOIC with 0.154" (3.90mm) width. While both are 8-pin SOIC packages, the width difference may require PCB layout verification to confirm mechanical compatibility with existing footprints.
Compliance and Availability:
All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory alignment and unlimited shelf life. All substitute parts are active products with established supply chains, providing long-term availability assurance compared to the obsolete BA15532F-E2.
Frequently Asked Questions (FAQ)
Q: Can the AD812ARZ directly replace the BA15532F-E2 in all applications?
A: The AD812ARZ meets the dual-channel, 8-SOIC surface mount, and 50mA output current requirements. However, the supply voltage maximum is 36V, which does not extend to the BA15532F-E2's 40V specification. If the design operates at voltages above 36V, the AD812ARZ is not suitable. Additionally, the package width differs (3.90mm versus 4.40mm), requiring PCB footprint verification.
Q: What is the primary difference between the AD826 and AD828 series?
A: Both are voltage feedback amplifiers in dual-channel 8-SOIC configuration. The AD828 provides higher bandwidth (130MHz versus 50MHz) and faster slew rate (450V/µs versus 350V/µs), resulting in higher supply current consumption (14mA versus 6.6mA). The AD826 is suitable for moderate-bandwidth audio applications, while the AD828 is designed for video and high-speed signal processing.
Q: Why does the ADTL082ARZ have lower output current than the BA15532F-E2?
A: The ADTL082ARZ is a J-FET input amplifier optimized for ultra-low input bias current (2pA) and low noise performance. This topology prioritizes input characteristics over output drive capability. The 27mA per channel output current is a design trade-off inherent to J-FET input architecture. Applications requiring 38mA output current must use alternative substitutes.
Q: Are all substitute parts available in multiple packaging options?
A: Yes. The AD812, AD826, and ADTL082 base part numbers are available in multiple packaging variants: tube (standard), tape and reel (TR), and cut tape with Digi-Reel (CT & Digi-Reel). Packaging selection depends on production volume and handling requirements. All variants of a given base part number are electrically identical.
Q: What is the impact of the 8-SOIC package width difference on PCB design?
A: The BA15532F-E2 uses 8-SOIC with 0.173" (4.40mm) width, while all substitute parts use 8-SOIC with 0.154" (3.90mm) width. The pin pitch and lead positions remain standard for 8-SOIC packages. PCB footprints designed for the narrower 3.90mm package will accommodate the original part, but footprints designed for the 4.40mm width may require adjustment. Verify footprint compatibility before finalizing layout.
Q: Can the AD826 or AD828 operate at the BA15532F-E2's 40V maximum supply voltage?
A: No. Both the AD826 and AD828 are specified with a maximum supply voltage of 36V (single supply) or ±18V (dual supply). The BA15532F-E2 extends to 40V. If the design requires operation above 36V, neither the AD826 nor AD828 is suitable. The AD812ARZ also has a 36V maximum limit.
Q: Is input offset voltage compatibility important for audio applications?
A: Yes. The BA15532F-E2 and AD826 both specify 500µV input offset voltage. The AD828 does not specify this parameter in the provided data. The ADTL082 specifies 1.5mV, which is higher. For DC-coupled audio applications or precision audio signal processing, input offset voltage affects DC bias and may require additional coupling capacitors or offset nulling circuits.
Q: What is the significance of the operating temperature range difference?
A: The BA15532F-E2 operates from -20°C to 75°C. The AD826 and AD828 extend to -40°C to 85°C, and the ADTL082 extends to -40°C to 125°C. If the application requires operation below -20°C or above 75°C, the substitute part's extended temperature range provides additional margin. However, if the design operates within the BA15532F-E2's original range, the extended range of substitutes provides no functional benefit.
Q: Are there any REACH or ECCN compliance differences between the BA15532F-E2 and substitute parts?
A: No. The BA15532F-E2 and all substitute parts are classified as REACH Unaffected and ECCN EAR99. All parts maintain identical regulatory classification, ensuring no compliance complications during substitution.
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