Part A
AFE5832LPZAV
Texas Instruments
- Lifecycle
- Active
- Stock
- 6726 PCS
- Package
- NFBGA-289
- Series
- Data Acquisition - Analog Front End (AFE)
Replacement verdict
Not a drop-in replacement
The AFE5808AZCF and AFE5832LPZAV are not drop-in replacements for one another. The AFE5808AZCF is an 8-channel ultrasound analog front end in a 289-ball NFBGA package, while the AFE5832LPZAV is a 32-channel device in a 289-ball NFBGA package with a different channel count, power architecture, and interface configuration. Designers must validate channel count, power supply requirements, and digital interface compatibility before considering any substitution.
Different channel count
Different power architecture
Different interface configuration
Different package footprint
Parts at a glance
Part B
AFE5808AZCF
Texas Instruments
- Lifecycle
- Active
- Stock
- 4985 PCS
- Package
- NFBGA-135
- Series
- Data Acquisition - Analog Front End (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 | AFE5832LPZAV | Why it matters |
|---|---|---|---|
| Number of Channels | 8 | 32 | Channel count determines how many transducer elements can be processed simultaneously; a 32-channel device supports higher-order beamforming and larger arrays than an 8-channel device. |
| ADC Resolution | 12 bit | 12 bit | ADC bit depth sets the dynamic range and quantization noise floor of the receive path; both devices offer 12-bit conversion for comparable signal fidelity. |
| Maximum ADC Sampling Rate | 65 MSPS | 80 MSPS | Higher sampling rate supports wider signal bandwidth and better time resolution, which is important for high-frequency imaging and harmonic modes. |
| LNA Gain Range | 24 dB | 24 dB | Low-noise amplifier gain range affects the ability to handle both weak and strong echoes without saturating the receive chain. |
| Total Power Consumption | Approximately 1.1 W (typical, 8 channels) | Approximately 3.5 W (typical, 32 channels) | Power consumption impacts thermal design and battery life in portable ultrasound systems; per-channel power is a key metric for system-level efficiency. |
| Package Type | NFBGA (ZCF) | NFBGA (ZAV) | Package footprint and pinout determine PCB layout compatibility and whether a design can be reworked for a different device. |
| Operating Temperature Range | 0°C to 70°C | 0°C to 70°C | Temperature range defines the environments in which the device can reliably operate; both are commercial-grade parts. |
| Interface Type | LVDS serial output | LVDS serial output | Output interface compatibility affects the digital backend design and data capture architecture. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5832LPZAV | AFE5808AZCF |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 10, 12 | 12, 14 |
| Number of Channels | 32 | 8 |
| Mounting Type | Surface Mount | Surface Mount |
| Power (Watts) | - | 158 mW |
| Voltage - Supply, Analog | - | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V |
| Voltage - Supply, Digital | - | 1.7V ~ 1.9V |
Frequently asked questions
What are the primary differences between the AFE5808AZCF and AFE5832LPZAV?
The AFE5808AZCF is an 8-channel fully integrated analog front end (AFE) for ultrasound, offering a 14-bit ADC with LVDS output and a maximum sampling rate of 65 MSPS. The AFE5832LPZAV is a 32-channel AFE with a 12-bit ADC, integrated digital beamformer (DBF), and continuous wave (CW) Doppler processing, targeting higher-channel-count ultrasound systems with lower per-channel power.
Do the AFE5808AZCF and AFE5832LPZAV have the same package and pinout?
No. The AFE5808AZCF is supplied in a 289-ball BGA package (ZCF), while the AFE5832LPZAV is supplied in a 289-ball BGA package (ZAV). Although both use a 289-ball BGA footprint, the pin assignments and internal architecture differ, so they are not pin-to-pin compatible and cannot be dropped into the same PCB land pattern without redesign.
How do the channel counts of the AFE5808AZCF and AFE5832LPZAV compare?
The AFE5808AZCF integrates 8 receive channels, each with a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), and 14-bit ADC. The AFE5832LPZAV integrates 32 receive channels with 12-bit ADCs plus on-chip digital beamforming and CW Doppler, making it suited to higher-channel-count systems where board space and per-channel power are critical.
What are the ADC resolution and maximum sampling rate for each device?
The AFE5808AZCF uses a 14-bit ADC with a maximum sampling rate of 65 MSPS. The AFE5832LPZAV uses a 12-bit ADC with a maximum sampling rate of 40 MSPS. The higher resolution of the AFE5808AZCF benefits dynamic range in conventional beamforming architectures, while the AFE5832LPZAV trades resolution for channel density and integrated digital processing.
Does the AFE5832LPZAV include digital beamforming that the AFE5808AZCF lacks?
Yes. The AFE5832LPZAV integrates an on-chip digital beamformer (DBF) and continuous wave (CW) Doppler mixer, allowing partial beamforming to be performed inside the AFE and reducing the data rate and FPGA resource requirements on the receive path. The AFE5808AZCF provides raw digitized channel data over LVDS and relies on an external FPGA or beamformer for all beamforming and Doppler processing.
How do the power consumption profiles of the two AFEs differ?
The AFE5832LPZAV is designed as a low-power (LP) device, with per-channel power optimized for high-channel-count systems, and its integrated DBF reduces downstream processing power. The AFE5808AZCF consumes more power per channel because it provides a full 14-bit signal chain per channel without integrated beamforming. Designers should consult the respective datasheets for exact per-channel power figures under specific operating conditions.
Can the AFE5808AZCF and AFE5832LPZAV be used in the same ultrasound system architecture?
They target different architectures. The AFE5808AZCF is typically used in systems where raw per-channel digitized data is sent to an external beamformer, suitable for mid-range channel counts. The AFE5832LPZAV is intended for high-channel-count systems that benefit from on-chip partial beamforming and CW Doppler to reduce FPGA I/O and processing load. Substituting one for the other requires redesign of the receive chain, clocking, and digital interface.
What digital output interfaces do the AFE5808AZCF and AFE5832LPZAV provide?
The AFE5808AZCF provides LVDS serialized output of the 14-bit ADC data for each channel. The AFE5832LPZAV provides a serialized LVDS output of the beamformed and digitized data, with the on-chip DBF reducing the effective output data rate compared with transmitting all 32 channels' raw ADC samples. Both interfaces are intended for connection to an FPGA or digital signal processor.