Part A
AFE5809ZCF
Техасские инструменты
- Lifecycle
- Active
- Stock
- 5909 ПКС
- Package
- NFBGA-135
- Series
- Сбор данных - аналоговый фронт-энд (AFE)
Replacement verdict
Compatible functional replacement candidate
The AFE5816ZAV and AFE5809ZCF are both 16-channel ultrasound analog front ends from Texas Instruments sharing a common architecture and 15 mm × 9 mm NFBGA-289 footprint, making them strong functional replacement candidates. However, the AFE5816ZAV offers a higher maximum sampling rate (65 MSPS versus 50 MSPS) and a different digital demodulation feature set, so system-level validation of clocking, LVDS output timing, and demodulation configuration is required before substitution.
Channel Count
High match
Package Type
High match
Maximum Sampling Rate
Validation required
Digital Demodulation Features
Validation required
Parts at a glance
Part B
AFE5816ZAV
Техасские инструменты
- Lifecycle
- Active
- Stock
- 2161 ПКС
- Package
- NFBGA-289
- 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 | AFE5816ZAV | AFE5809ZCF | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 8 | Channel count determines how many transducer elements can be processed simultaneously; a 16-channel device cannot directly replace an 8-channel one without changing the system architecture. |
| ADC Resolution | 14 bit | 14 bit | ADC bit depth sets the dynamic range and quantization noise floor of the receive path, directly affecting image quality in ultrasound systems. |
| Maximum ADC Sampling Rate | 65 MSPS | 65 MSPS | Sampling rate limits the maximum signal bandwidth and thus the achievable axial resolution and penetration depth trade-off. |
| LNA Gain Range | 12 dB to 30 dB | 12 dB to 30 dB | Low-noise amplifier gain range determines the sensitivity and noise figure achievable for weak echo signals. |
| Integrated CW Doppler | No | Yes | Continuous-wave Doppler support enables blood-flow velocity measurement; its absence in one device prevents direct substitution in Doppler-capable systems. |
| Integrated Digital Demodulation | No | Yes | On-chip demodulation reduces FPGA/processor load and data bandwidth, affecting system complexity and power budget. |
| Package | NFBGA (ZAV) | NFBGA (ZCF) | Package footprint and pinout must match for board-level drop-in compatibility; differing packages require PCB redesign. |
| Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Supply rails must be compatible with the existing power design to avoid additional regulators or level shifting. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range ensures reliable operation across the environmental conditions of medical and industrial imaging equipment. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5809ZCF | AFE5816ZAV |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 14 | 12, 14 |
| Number of Channels | 8 | 16 |
| Power (Watts) | 158 mW | 94 mW |
| Voltage - Supply, Analog | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V | 1.7V ~ 2V, 3V ~ 3.3V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.15V ~ 1.25V, 1.7V ~ 1.9V |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AFE5816ZAV and AFE5809ZCF?
The AFE5816ZAV is an 8-channel fully integrated analog front end with a maximum sampling rate of 65 MSPS and a 14-bit ADC, housed in a 289-ball NFBGA (ZAV) package. The AFE5809ZCF is an 8-channel fully integrated analog front end with a maximum sampling rate of 65 MSPS and a 14-bit ADC that additionally integrates digital demodulation and continuous wave (CW) Doppler processing, housed in a 289-ball NFBGA (ZCF) package. The AFE5809ZCF includes on-chip CW Doppler mixers and a digital I/Q demodulator that the AFE5816ZAV does not provide.
Are the AFE5816ZAV and AFE5809ZCF pin-to-pin compatible?
Both devices are supplied in a 289-ball NFBGA package, but they are not pin-to-pin compatible. The AFE5809ZCF includes additional functional blocks (CW Doppler mixers and digital demodulator) that require different pin assignments and signal routing. Designers must consult the respective datasheets and pinout diagrams before considering any board-level substitution.
Do both devices support the same maximum ADC sampling rate?
Yes. Both the AFE5816ZAV and AFE5809ZCF integrate a 14-bit ADC with a maximum sampling rate of 65 MSPS, making them suitable for mid-range ultrasound receive signal chains requiring up to 65 MSPS conversion.
Which device should be selected for continuous wave (CW) Doppler applications?
The AFE5809ZCF should be selected for CW Doppler applications because it integrates on-chip CW Doppler mixers and a digital demodulator. The AFE5816ZAV does not include CW Doppler processing blocks, so it is limited to pulsed-wave and B-mode receive paths.
Do the AFE5816ZAV and AFE5809ZCF share the same channel count and input architecture?
Yes. Both devices are 8-channel analog front ends featuring a low-noise amplifier (LNA), programmable gain amplifier (PGA), and anti-aliasing filter ahead of the 14-bit ADC. The channel count and core receive signal chain architecture are equivalent between the two parts.
Can the AFE5816ZAV be used as a drop-in replacement for the AFE5809ZCF?
No. Although both are 8-channel, 14-bit, 65 MSPS AFEs in a 289-ball NFBGA package, the AFE5809ZCF provides additional CW Doppler and digital demodulation functions with a different pinout. A drop-in replacement is not possible; any substitution requires schematic, layout, and firmware validation against the manufacturer datasheet.
What is the package designation difference between the ZAV and ZCF suffixes?
The ZAV and ZCF suffixes denote different 289-ball NFBGA package variants associated with each device's specific pinout and functional configuration. The ZAV suffix corresponds to the AFE5816 configuration, while the ZCF suffix corresponds to the AFE5809 configuration with integrated CW Doppler and demodulation blocks. The suffixes are not interchangeable package codes.