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AD7875LPZ-REEL Equivalent & Substitute Parts
Part Overview
The AD7875LPZ-REEL is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc., designed for single-ended input data acquisition applications. This component features a Successive Approximation Register (SAR) architecture with a 100 kHz sampling rate and operates with ±5V supply voltages for both analog and digital domains. The part is packaged in a 28-PLCC surface mount configuration.
The AD7875LPZ-REEL is currently classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resolution (Number of Bits) | 12 |
| Sampling Rate | 100 kHz |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Architecture | SAR (Successive Approximation Register) |
| Data Interface | SPI, Parallel |
| Reference Type | Internal |
| Voltage - Supply, Analog | ±5V |
| Voltage - Supply, Digital | ±5V |
| Operating Temperature Range | 0°C to 70°C |
| Package / Case | 28-LCC (J-Lead) |
| Supplier Device Package | 28-PLCC (11.51x11.51) |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitute parts for the AD7875LPZ-REEL are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters:
- Resolution: 12 bits
- Sampling Rate: 100 kHz
- Number of Inputs: 1 (single input)
- Input Type: Single Ended
- Architecture: SAR
- Data Interface: SPI and Parallel
- Reference Type: Internal
- Supply Voltages: ±5V (both analog and digital)
- Operating Temperature: 0°C to 70°C
- Package: 28-PLCC (11.51x11.51)
- Mounting Type: Surface Mount
All substitute parts listed maintain identical electrical performance characteristics and physical packaging specifications, ensuring direct functional replacement capability.
Parameter Comparison
| Parameter | AD7875LPZ-REEL | AD7875KPZ-REEL | AD7870JPZ-REEL | AD7870KPZ-REEL |
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Number of Bits | 12 | 12 | 12 | 12 |
| Sampling Rate (Per Second) | 100k | 100k | 100k | 100k |
| Number of Inputs | 1 | 1 | 1 | 1 |
| Input Type | Single Ended | Single Ended | Single Ended | Single Ended |
| Data Interface | SPI, Parallel | SPI, Parallel | SPI, Parallel | SPI, Parallel |
| Architecture | SAR | SAR | SAR | SAR |
| Reference Type | Internal | Internal | Internal | Internal |
| Voltage - Supply, Analog | ±5V | ±5V | ±5V | ±5V |
| Voltage - Supply, Digital | ±5V | ±5V | ±5V | ±5V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Package / Case | 28-LCC (J-Lead) | 28-LCC (J-Lead) | 28-LCC (J-Lead) | 28-LCC (J-Lead) |
| Supplier Device Package | 28-PLCC (11.51x11.51) | 28-PLCC (11.51x11.51) | 28-PLCC (11.51x11.51) | 28-PLCC (11.51x11.51) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Obsolete | Active | Active | Active |
| RoHS Status | Not specified | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | Not specified | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
All three substitute parts (AD7875KPZ-REEL, AD7870JPZ-REEL, and AD7870KPZ-REEL) are parametrically equivalent to the AD7875LPZ-REEL and provide direct functional replacement capability.
AD7875KPZ-REEL is the primary recommended substitute. This part maintains the same base product number (AD7875) as the original component, ensuring design continuity. It is currently in active production status with 1,104 units available in inventory. The part is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.
AD7870JPZ-REEL and AD7870KPZ-REEL are alternative substitutes based on the AD7870 base product number. Both parts are active and available (791 and 994 units respectively). These alternatives are also ROHS3 compliant and REACH unaffected. Selection between these variants and the AD7875KPZ-REEL should be based on inventory availability and supply chain considerations, as all three parts are electrically and mechanically equivalent.
Frequently Asked Questions (FAQ)
Q: Can AD7875KPZ-REEL directly replace AD7875LPZ-REEL in existing designs?
A: Yes. AD7875KPZ-REEL is a direct parametric equivalent with identical electrical specifications, pin configuration, and 28-PLCC package dimensions. No design modifications are required.
Q: What is the difference between AD7875KPZ-REEL and AD7870JPZ-REEL / AD7870KPZ-REEL?
A: All three parts are parametrically equivalent across all critical specifications including resolution, sampling rate, input configuration, supply voltages, and package type. The primary difference is the base product number (AD7875 versus AD7870). From an engineering perspective, they are functionally interchangeable.
Q: Are the substitute parts available in the same packaging format?
A: Yes. All substitute parts are supplied in Tape & Reel (TR) packaging with the same
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