Part A
AD9945KCPZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5858 個数
- Package
- WFQFN-32
- Series
- インターフェース - センサーおよび検出器インターフェース
Replacement verdict
Compatible functional replacement candidate
The AD9945KCPZ is a functionally compatible replacement candidate for the AD9945KCP, sharing the same core architecture, package footprint, and supply requirements. The primary distinction is the RoHS-compliant lead-free construction of the KCPZ variant, which may require reflow profile validation. Designers should confirm thermal and soldering process compatibility before substituting in production.
Function and Architecture
High match
Package Type
High match
Supply Voltage
High match
RoHS Compliance
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD9945KCPZ | AD9945KCP | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, documentation, and support. |
| Function | CCD Signal Processor with integrated timing driver | CCD Signal Processor with integrated timing driver | Identical core function confirms the parts are functionally interchangeable in the signal chain. |
| Package / Case | 32-Lead LFCSP (5x5 mm) | 32-Lead LFCSP (5x5 mm) | Same footprint and pinout allow drop-in replacement on an existing PCB. |
| Pin Count | 32 | 32 | Matching pin count is required for physical and electrical compatibility. |
| Supply Voltage (AVDD/DVDD) | 3.0 V to 3.6 V | 3.0 V to 3.6 V | Same operating supply range means the same power rail design can be reused. |
| Resolution | 12-bit ADC | 12-bit ADC | Identical ADC resolution preserves image quality and system performance. |
| Maximum Sampling Rate | 40 MSPS | 40 MSPS | Same throughput supports the same pixel clock and frame rate requirements. |
| RoHS / Lead-Free Status | RoHS compliant, lead-free (Z suffix) | Non-RoHS, contains lead | RoHS compliance affects regulatory acceptance and solder process compatibility; the Z suffix denotes the lead-free variant. |
| Part Number Suffix Meaning | Z = RoHS-compliant lead-free package | No Z = standard leaded package | The suffix distinguishes environmental compliance and assembly requirements between otherwise identical parts. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9945KCPZ | AD9945KCP |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | CCD Signal Processor, 12-Bit | CCD Signal Processor, 12-Bit |
| Input Type | Logic | Logic |
| Output Type | Logic | Logic |
| Operating Temperature | -20°C ~ 85°C | -20°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between AD9945KCPZ and AD9945KCP?
The AD9945KCPZ is the RoHS-compliant, lead-free (Pb-free) version of the AD9945KCP. Both are functionally identical 12-bit CCD signal processors in a 32-lead LFCSP package, but the "Z" suffix denotes compliance with RoHS/lead-free manufacturing requirements per Analog Devices part numbering conventions.
Are AD9945KCPZ and AD9945KCP electrically and functionally interchangeable?
Yes. Both devices share the same datasheet specifications: 12-bit, 40 MSPS CCD signal processor with correlated double sampling, programmable gain amplifier, and on-chip timing generator, in the same 32-lead LFCSP package. The only documented difference is the RoHS/lead-free status indicated by the "Z" suffix.
What does the "Z" suffix mean in the AD9945KCPZ part number?
Per Analog Devices part numbering conventions, the "Z" suffix designates a RoHS-compliant, lead-free package. The AD9945KCP without the suffix is the non-RoHS version. Designers requiring RoHS compliance for export or regulatory reasons should specify the AD9945KCPZ.
What package do AD9945KCPZ and AD9945KCP use?
Both parts are supplied in a 32-lead LFCSP (lead frame chip scale package). The package footprint and pinout are identical between the two variants, so PCB land patterns are the same.
Can AD9945KCP be replaced by AD9945KCPZ in an existing design?
Yes, in most cases. Because the package, pinout, and electrical specifications are the same, the AD9945KCPZ can typically drop into a design that used the AD9945KCP. Verify solder reflow profile compatibility for lead-free assembly, since the Pb-free finish may require a higher peak reflow temperature.
What are the key specifications common to both AD9945KCPZ and AD9945KCP?
Both are 12-bit CCD signal processors operating at up to 40 MSPS, featuring correlated double sampling, a programmable gain amplifier (PGA), and an on-chip timing generator, housed in a 32-lead LFCSP. These parameters are identical across both part numbers per the Analog Devices datasheet.
Which variant should be selected for a new RoHS-compliant design?
The AD9945KCPZ should be selected for new designs requiring RoHS compliance, as it is the lead-free, RoHS-compliant variant. The AD9945KCP (non-Z) is the legacy non-RoHS version and is generally not preferred for new production unless specifically required.