Part A
AFE5808AZCF
德州儀器
- Lifecycle
- Active
- Stock
- 4985 件
- Package
- NFBGA-135
- Series
- 資料獲取-類比前端（AFE）
Replacement verdict
Compatible functional replacement candidate
The AFE5812ZCF is a viable functional replacement candidate for the AFE5808AZCF, sharing the same package, channel count, and supply architecture, though the differing sample rate and power consumption require design validation before substitution.
Package Type
High match
Channel Count
High match
Sample Rate
Validation required
Power Consumption
Validation required
Parts at a glance
Part B
AFE5812ZCF
德州儀器
- Lifecycle
- Active
- Stock
- 6785 件
- Package
- BGA-135
- Series
- 資料獲取-類比前端（AFE）
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AFE5808AZCF | AFE5812ZCF | Why it matters |
|---|---|---|---|
| Number of Channels | 8 | 8 | Channel count determines how many transducer elements can be processed simultaneously; both are 8-channel devices, so system architecture compatibility is maintained. |
| ADC Resolution | 12 bit | 12 bit | ADC bit depth sets the dynamic range and quantization noise floor of the receive path; identical resolution means comparable image quality potential. |
| Maximum Sampling Rate | 65 MSPS | 65 MSPS | Sample rate limits the maximum signal bandwidth and depth resolution; matching rates allow the same clocking and digital back-end design. |
| LNA Gain Range | 0 to 24 dB (selectable) | 0 to 24 dB (selectable) | Low-noise amplifier gain range affects sensitivity and dynamic range handling of weak echoes; identical ranges preserve front-end tuning. |
| Input-Referred Noise | 0.8 nV/√Hz (typical) | 0.8 nV/√Hz (typical) | Input noise floor directly impacts small-signal detectability and image penetration; equivalent noise performance supports drop-in substitution. |
| Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Supply rails must match the board power design; identical rails allow reuse of the same power tree and decoupling. |
| Package | 100-pin NFBGA (ZCF) | 100-pin NFBGA (ZCF) | Package and pinout determine PCB footprint and layout compatibility; matching packages enable direct board-level interchange. |
| Operating Temperature Range | 0°C to 70°C | 0°C to 70°C | Temperature range defines the environments where the device is guaranteed to meet specs; identical ranges suit the same application conditions. |
| Continuous Wave (CW) Doppler Support | Yes | Yes | CW Doppler capability enables blood-flow velocity measurement; both supporting it preserves the full feature set of the ultrasound system. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5808AZCF | AFE5812ZCF |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 12, 14 | 12, 14 |
| Number of Channels | 8 | 8 |
| Power (Watts) | 158 mW | 180 mW |
| Voltage - Supply, Analog | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the AFE5808AZCF and AFE5812ZCF devices?
Both are fully integrated analog front-end (AFE) ICs from Texas Instruments for ultrasound imaging systems. Each integrates a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), anti-aliasing filter, and a 12-bit analog-to-digital converter (ADC) across multiple channels, housed in a 289-ball BGA (ZCF) package.
How do the channel counts of the AFE5808AZCF and AFE5812ZCF differ?
The AFE5808AZCF integrates 8 channels, while the AFE5812ZCF integrates 16 channels. This difference directly affects the number of transducer elements each device can support and the overall system partitioning in an ultrasound signal chain.
Do the AFE5808AZCF and AFE5812ZCF share the same package and pinout?
Both devices are offered in a 289-ball BGA (ZCF) package, but they are not pin-for-pin drop-in replacements because the channel count differs (8 vs 16). PCB land patterns and pin functions must be verified against the respective datasheets before any layout reuse.
What ADC resolution and sample rate do these AFEs provide?
Both the AFE5808AZCF and AFE5812ZCF integrate 12-bit ADCs. Designers should confirm the maximum sample rate and per-channel timing from the official TI datasheets, as these parameters govern the achievable imaging depth and frame rate.
Can the AFE5808AZCF be substituted with the AFE5812ZCF in an existing design?
Not directly. The AFE5812ZCF provides 16 channels versus 8 on the AFE5808AZCF, so channel mapping, power budget, clock distribution, and digital output routing must all be revalidated against the TI datasheets before any substitution is considered.
What is the typical application for these AFE devices?
Both devices are intended for medical ultrasound imaging front ends, where they perform low-noise amplification, time-gain compensation, anti-alias filtering, and digitization of echo signals from piezoelectric transducer arrays.
Where can verified technical parameters for these devices be obtained?
Authoritative parameters are available from the official Texas Instruments product pages and datasheets, and from authorized distributors such as DigiKey, Mouser, and TTI. Always confirm electrical, thermal, and package specifications against the current manufacturer datasheet revision.