Part A
AFE5808AZCF
Техасские инструменты
- Lifecycle
- Active
- Stock
- 4985 ПКС
- Package
- NFBGA-135
- Series
- Сбор данных - аналоговый фронт-энд (AFE)
Replacement verdict
Compatible functional replacement candidate
The AFE5803ZCF is a viable functional replacement candidate for the AFE5808AZCF in applications where the reduced channel count and lower power consumption are acceptable, since both devices share the same package footprint, supply architecture, and digital interface. Designers must validate the channel-count reduction and confirm that the lower per-channel power and noise performance meet the system budget before committing to a drop-in substitution.
Channel Count
Validation required
Package Type
High match
Digital Interface
High match
Power Consumption
Validation required
Parts at a glance
Part B
AFE5803ZCF
Техасские инструменты
- Lifecycle
- Active
- Stock
- 9647 ПКС
- Package
- BGA-135
- Series
- Сбор данных - аналоговый фронт-энд (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 | AFE5803ZCF | 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 is compatible. |
| 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 imaging depth/frequency trade-off; matching rates allow the same clocking and digital backend design. |
| LNA Gain Range | 24 dB | 24 dB | Low-noise amplifier gain range affects sensitivity and the ability to handle weak echoes; equal gain range supports similar front-end signal scaling. |
| Input-Referred Noise | 0.75 nV/√Hz | 0.75 nV/√Hz | Input-referred noise determines the minimum detectable signal and overall SNR; identical noise performance means equivalent sensitivity. |
| Total Power Consumption | 158 mW/ch | 158 mW/ch | Per-channel power drives thermal design and battery life in portable ultrasound systems; matching power allows reuse of the same power budget. |
| Package | NFBGA-289 (ZCF) | NFBGA-289 (ZCF) | Package and pinout determine PCB footprint and layout compatibility; identical package enables drop-in board replacement. |
| Operating Temperature Range | 0°C to 70°C | 0°C to 70°C | Temperature range defines the environments where the device can be reliably used; matching ranges support the same application conditions. |
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 | AFE5803ZCF |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 12, 14 | 14 |
| Number of Channels | 8 | 8 |
| Power (Watts) | 158 mW | 190 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 key differences between the AFE5808AZCF and AFE5803ZCF?
The AFE5808AZCF is an 8-channel fully integrated analog front-end with a maximum sampling rate of 65 MSPS and a selectable 12-bit or 14-bit ADC output, while the AFE5803ZCF is an 8-channel analog front-end with a maximum sampling rate of 50 MSPS and a 12-bit ADC output. The AFE5808A also integrates a continuous wave (CW) Doppler mixer with 16 selectable phase delays, whereas the AFE5803 does not include an integrated CW Doppler mixer.
Are the AFE5808AZCF and AFE5803ZCF pin-to-pin compatible?
Both devices are offered in the same 289-ball BGA package (ZCF) with the same ball count and footprint, but pin-to-pin compatibility must be confirmed against the respective manufacturer pinout and ball assignment tables, since some ball functions differ between the two devices. Designers should verify each ball assignment in the official datasheets before considering a board-level swap.
What is the maximum sampling rate of each device?
The AFE5808AZCF supports a maximum ADC sampling rate of 65 MSPS, while the AFE5803ZCF supports a maximum sampling rate of 50 MSPS. Both figures are specified in the respective Texas Instruments datasheets.
Do both devices include a continuous wave (CW) Doppler mixer?
No. The AFE5808AZCF integrates a CW Doppler mixer with 16 selectable phase delays, making it suitable for continuous wave Doppler processing without external mixing circuitry. The AFE5803ZCF does not include an integrated CW Doppler mixer.
What ADC resolution does each device provide?
The AFE5808AZCF provides a selectable 12-bit or 14-bit ADC output, allowing designers to trade resolution against data rate. The AFE5803ZCF provides a 12-bit ADC output. Both are 8-channel devices intended for ultrasound signal chains.
What are the typical applications for these analog front-ends?
Both the AFE5808AZCF and AFE5803ZCF are intended for medical ultrasound imaging systems and similar multi-channel signal acquisition applications. The AFE5808AZCF, with its higher 65 MSPS sampling rate, 14-bit option, and integrated CW Doppler mixer, suits higher-performance ultrasound systems, while the AFE5803ZCF targets 50 MSPS, 12-bit ultrasound designs.
Can the AFE5803ZCF be used as a drop-in replacement for the AFE5808AZCF?
No. Although both are 8-channel devices in the same 289-ball ZCF package, they differ in maximum sampling rate (50 MSPS vs 65 MSPS), ADC resolution (12-bit vs selectable 12/14-bit), and CW Doppler mixer integration. A substitution requires full validation of pin functions, timing, power, and signal-chain performance against the manufacturer datasheets for the target design.